87results about How to "Avoid overall overturning" patented technology

The present application relates to a kind of based on self-propelled double-row paddy field weeder's leapfrogging row-changing device and row-changing method.Row-changing device includes support mechanism, transverse moving mechanism, initiative lifting mechanism, steering mechanism, reset mechanism and electric control module;When electric control module detects that weeder walks to the end of rice planting row, support mechanism elongates and supports the whole machine by contacting ground, initiative lifting mechanism lifts weeder to higher than rice seedling height, and is driven from above rice seedling by transverse moving mechanism to move horizontally;Steering mechanism and lifting mechanism drive weeder to turn 180 ° and descend, complete leapfrogging row-changing;After weeder descends to ground, reset mechanism drives row-changing device to reset, provide preparation for next row-changing.The present application realizes the leapfrogging row-changing of self-propelled paddy field weeder from above rice seedling, avoids the damage of seedling caused by weeder turning at the end of row, and optimizes support mechanism, so that the whole machine adapts to paddy field environment after weeding operation to prevent overturning.

The utility model provides an adjustable supporting tool for assembling an offshore photovoltaic steel grid. The adjustable supporting tool comprises a height adjusting module, a fixing module, a telescopic module and a supporting module, wherein the fixing module, the telescopic module and the supporting module are sequentially connected from top to bottom. The fixing module is connected with an offshore photovoltaic steel grid; one end of the telescopic module is embedded into the supporting module and is detachably connected with the supporting module; the height adjusting module is connected with the telescopic module and used for adjusting the depth of the telescopic module embedded into the supporting module. The supporting module is used for supporting the fixing module and the telescopic module. According to the utility model, a modularized combined structure of the fixing module, the telescopic module, the height adjusting module and the supporting module is adopted, and the depth of the telescopic module embedded into the supporting module is adjusted through the height adjusting module, so that the levelness and the butt joint precision during the assembly of the steel net rack are ensured, and the assembly operation of the offshore photovoltaic steel net rack can adapt to the tide level change; manual measurement errors are reduced, and the assembling efficiency and quality are greatly improved.

The utility model discloses a self-balancing electric wheelchair, and relates to the technical field of wheelchairs. Comprising a seat body and a walking mechanism installed on the bottom face of the seat body, a walking balance mechanism is installed between the seat body and the walking mechanism, and the walking balance mechanism comprises a buffering assembly, a gravity center height adjusting assembly and a distance adjusting mechanism. Two internal thread blocks on the sliding chute shell are far away from each other to drive one end, located at the sliding chute shell, of the limiting rod to push the sliding blocks to slide, namely, the two sliding blocks in the sliding chute shell are far away from each other to compress the buffer springs on the sliding rods at the positions, so that the elastic potential energy release stroke of the buffer springs is shortened, and the buffer strength of the buffer springs is reduced; the jolting strength of the jolting road section at one end prevents the elastic potential energy release stroke of the buffer spring from being too long, and the jolting feeling is enhanced.

The utility model provides an electric lifting goods shelf with adjustable pallet height, which comprises a main shelf body, pallets, a lifting mechanism and a control mechanism, the pallets are arranged on the main shelf body through the lifting mechanism, and the control mechanism is in communication connection with the lifting mechanism; the elevators are arranged in pairs and symmetrically arranged at the left end and the right end of the main frame body, each elevator comprises a penetrating type stepping motor, a screw rod and a vertical guide part, the screw rod is vertically fixed between the front side and the rear side of the main frame body through a screw rod fixer, the penetrating type stepping motors are arranged on the screw rod in a sleeving manner and are in transmission connection with the screw rod, mounting seats are arranged on the penetrating type stepping motors, and the vertical guide parts are arranged on the mounting seats. The end part of the pallet is fixed on the penetrating type stepping motor through a mounting seat; the vertical guide part comprises a guide rod and a guide sleeve, the guide rod is vertically arranged on the main frame body and is parallel to the screw rod, the guide sleeve is sleeved on the guide rod, and the outer surface of the guide sleeve is fixedly connected with the end part of the pallet.

The utility model discloses a kind of transfer devices for cork furniture, belong to furniture transport technical field.It includes vehicle plate, handle and universal wheel.Vehicle plate below installs universal wheel and is convenient for moving, above welding handle, two slide rails are installed on vehicle plate, and circular limit block with roller inclined rail is correspondingly set in one end of slide rail.Adjusting assembly is rotated by hand wheel drive screw column, drive screw block and bearing connection slider connecting column lateral movement of it, core effect is to pull fixed plate and its connecting roller from roller inclined rail to slide rail, realize accurate positioning and transport of furniture on device.Rope automatic recovery assembly is automatically recovered by clock spring drive reel, in combination with ratchet and pawl anti-loosening mechanism and guide rope board, cooperate with rope binding column to realize furniture fast binding and fixing.Solve the problem that furniture is laborious in traditional transfer, fixed operation is complicated, with loading positioning accurate, binding convenient and the like advantages, significantly improve the safety and efficiency of cork furniture transfer.

This invention relates to a deep foundation pit support structure for underground sewage treatment plants based on double-row piles, comprising a first support component, a second support component, a support component, a cross brace component, and a cable assembly. The first support component is disposed around the perimeter of the deep foundation pit, and the first and second support components are staggered. The support component is disposed between the first and second support components, and the cross brace component is disposed between the opposing first support components. The cable assembly is also connected to the outer side of the second support component, and the cable assembly extends outward to the anchor pier. This invention not only stabilizes the foundation pit support of underground sewage treatment plants, facilitating construction, but also reduces the difficulty of foundation pit support construction.

The utility model relates to the technical field of jacking devices, in particular to a bridge support replacement jacking device which comprises a hydraulic column and a hydraulic jacking cylinder. And two groups of hydraulic jacking cylinders are mounted on the outer side of the hydraulic column. The two sets of hydraulic jacking cylinders are connected with the top plate to assist the hydraulic columns for supporting, so that the bearing capacity of the hydraulic columns can adapt to actual loads of different bridges, sufficient supporting force is provided, it is ensured that the hydraulic columns can safely support the upper structures of the bridges, and the load requirements of different bridges are met; load can be dispersed, overload of a single hydraulic cylinder is avoided, additional lateral support is provided for the hydraulic cylinders, the hydraulic cylinders are prevented from overturning in the jacking process, the risk of equipment damage is reduced, the two sets of hydraulic jacking cylinders are used for assisting in supporting, the load is effectively dispersed, local stress concentration is reduced, and the reliability of equipment is improved. And the risk that the bridge structure cracks or deforms in the jacking process is reduced, and the overall safety is improved.

The utility model relates to an electric lifting transfer trolley, include: frame, including frame body, wheel group and with handle, drive assembly, including first drive part and first transmission part, support assembly, including with support base, a pair of limit board and limiting piece along first direction set up on support base, support base can be driven and moves up and down by drive part, a pair of limit board forms support space between, for supporting work piece, limiting piece has open state and limit state, in open state, the orthographic projection of limiting piece does not coincide with support space, in limit state, the orthographic projection of limiting piece coincides with at least partial support space, drive assembly drives support assembly to move up and down relative to frame to realize with different height's connection platform, promotes efficiency, in limit state when limiting piece, the orthographic projection of limiting piece coincides with at least partial support space, thereby realizes to the work piece in support space and carries out limit, prevents the slippage, overturning or falling of work piece.

The application discloses a concrete prefabricated column reinforcing anti-misplacement structure and a mounting method thereof, and relates to the technical field of building structure reinforcement, which comprises a plurality of prefabricated columns, reinforcing members connected with the prefabricated columns, and connecting members arranged between the prefabricated columns and the reinforcing members. The application comprises four steps: S1, preparing vertical prefabricated columns and horizontal prefabricated columns, and placing the vertical prefabricated columns and the horizontal prefabricated columns to predetermined positions to ensure the verticality and the horizontality; S2, mounting vertical connecting members and horizontal connecting members to the vertical prefabricated columns and the horizontal prefabricated columns to ensure the connection with longitudinal reinforcement and horizontal reinforcement; S3, connecting reinforcing bodies with the vertical connecting members and the horizontal connecting members; and S4, arranging first reinforcing plates and second reinforcing plates on surfaces of the vertical connecting members and the horizontal connecting members respectively, and tightening steel ropes to complete the mounting. The multiple connections among the structures can significantly improve the stability and the bearing capacity of the concrete prefabricated columns, and reduce the damage caused by external factors such as earthquakes and wind loads.

The utility model relates to the technical field of hydrometeorological monitoring, in particular to a hydrometeorological monitoring device which comprises a supporting plate, fixing frames, an air cushion, an air valve, a meteorological detector, a limiting plate, a liquid wheel, a fixing plate and the like, a plurality of fixing frames are evenly distributed at the bottom of the supporting plate, the air cushion is connected between the fixing frames, the air valve is installed on the air cushion, and the meteorological detector is connected with the limiting plate. A meteorological detector is installed in the middle of the top of the supporting plate, limiting plates are symmetrically installed on the left side and the right side of the lower portion of the supporting plate front and back, a liquid wheel is installed on the outer side of each limiting plate, and fixing plates are installed on the left side and the right side of the middle of the top of the supporting plate. The two double-shaft motors are matched with the bevel gear sets to independently drive the left hydraulic wheel, the right hydraulic wheel, the front hydraulic wheel and the rear hydraulic wheel respectively, multi-direction propelling power is provided for the device, and the problems that a traditional floating type monitoring device is poor in maneuverability and cannot actively respond and cover monitoring blind areas are solved.

The utility model discloses an alignment mechanism for pole piece detection, include: base plate, and its both ends end face respectively fixedly be equipped with mounting seat, the first slider and the second slider of sliding setting in the mounting seat, the adjusting end of mounting seat is fixedly equipped with first drive assembly, and the output shaft of first drive assembly is connected and drives corresponding slider sliding, the first pivot assembly of fixedly equipped on the first slider and two second pivot assemblies of fixedly equipped on the second slider, be equipped with the alignment plate of center round hole and racecourse type through -hole, first pivot assembly is worn in center round hole, and two second pivot assemblies are respectively worn in the racecourse type through -hole that sets up parallel to the alignment plate length direction, the pole piece detection camera of fixedly equipped in the alignment plate middle part edge position, through the automatic control of first drive assembly and second drive assembly, has realized the automation of alignment process, has improved alignment efficiency and precision greatly.

This utility model belongs to the field of scaffolding technology, specifically relating to a foldable construction scaffold. It includes casters, retractable uprights, a lifting device, a ladder, and footboards. The lifting device is mounted on the retractable uprights, and includes a folding bracket, a drive cylinder, and a mounting plate. The mounting plate is fixed to the retractable uprights, and the folding bracket is mounted on the mounting plate. A drive cylinder and a limit rod are mounted at the bottom of the folding bracket. The telescopic end of the drive cylinder is connected to the limit rod, which is slidably mounted in a limit frame on the mounting plate. A footboard is connected to the top of the folding bracket, and a ladder is mounted on one side of the footboard. This utility model uses the drive cylinder to move the limit rod along the limit frame, causing the folding bracket to unfold or fold, thereby moving the retractable uprights and footboards along the direction of the retractable uprights, changing the height of the scaffold, and facilitating adjustment of the construction height as needed.

This utility model discloses a lightweight hot air blower frame, specifically relating to the field of hot air blower technology. It includes a fixed plate with a mounting groove on one side. A support device is movably connected to the rear end of the fixed plate. Bolts are movably connected to one side of the mounting groove. A connecting device is fixedly connected to the upper end of the support device, and a fixed seat is movably connected to the upper end of the connecting device. A hot air blower is fixedly connected to the upper end of the fixed seat. This lightweight hot air blower frame solves the pain points of traditional hot air blowers in complex environments by upgrading flexibility, stability, and scene adaptability. It also has advantages such as safety, efficiency, and ease of maintenance. The height of the support legs can be adjusted according to the flatness of the ground or operational needs, ensuring the hot air blower remains horizontal under uneven, tilted, or other non-ideal ground conditions. The support legs can rotate at multiple angles and independently adjust the tilt angle, enhancing the equipment's fit with the ground and preventing tipping.

The utility model provides a mechanical draft cooling tower, which relates to the technical field of cooling towers and comprises a cooling tower body, an air inlet filter is fixedly connected outside an air inlet of the cooling tower body, and a protective screen plate is mounted in front of the inside of the air inlet filter. The lower edge of the protective screen plate is hinged to the bottom of the interior of the air inlet filter through supporting shafts on the two sides, a driving motor is installed on the right surface of the air inlet filter through bolts, and after the cooling tower stops running, the protective screen plate shakes under the cooperation of the driving motor and a vibration rotating disc; impurities attached to the surface of the protective net plate can fall off under the shaking action of the protective net plate, so that the problem that the cooling efficiency of the cooling tower is influenced by air permeability reduction caused by the fact that the impurities block the protective net plate is avoided, efficient cleaning of the cooling tower is facilitated, and the problems that after a traditional protective net intercepts the impurities, part of the impurities are attached to the protective net and cannot fall off, and the cooling efficiency of the cooling tower is affected are solved. The air permeability of the protective net is reduced, the power consumption of the cooling tower is increased, and the cooling efficiency of the cooling tower is reduced.

This invention provides an anti-static endoscope camera system host, relating to the field of endoscope technology. It includes a housing with four terminals mounted on its side wall. The side wall of the housing has a grounding structure, which includes a conductive frame, a conductive component for conducting static electricity, a discharge block for discharging static electricity, and a protective component for shielding the discharge block. The conductive frame is electrically connected to the housing and is made of copper. The inner wall of the conductive frame has a conductive component, which includes a retaining plate slidably connected to the inner wall of the conductive frame. The retaining plate is also made of copper. This invention, by setting a grounding structure, can promptly conduct static electricity generated on the housing to the ground, thereby minimizing the accumulation of static electricity on the housing and preventing damage to electronic components inside the housing. This extends the service life of the host and, to a certain extent, eliminates safety hazards.

This utility model discloses a cable storage device, comprising: a base, lifting ring devices, a flexible sling, and a movable hook. The base is a rectangular frame structure composed of several connected steel pipes. One end of each lifting ring device is fixedly connected to a steel pipe on the base, and the other end of the lifting ring device is connected to the flexible sling. The flexible sling is also connected to the movable hook. This cable storage device has a simple structure, is easy to use, and enables convenient and quick lifting, storage, and retrieval of cables.

The application discloses a floating photovoltaic power generation device suitable for fish culture, which comprises a corrosion-resistant floating body, a power generation module, a sun tracking module and a self-cleaning module integrated on the floating body to form an integrated independent power supply unit, and photovoltaic panels replace high-voltage power transmission to supply power to the culture device; the sun tracking module realizes sun tracking of the photovoltaic panels through a two-degree-of-freedom deflection structure combined with intelligent control and takes into account underwater culture illumination; the self-cleaning module realizes automatic cleaning of the photovoltaic panels through cooperation of a brush / roller brush and spraying; the floating body can be used alone or composed of a power generation group, and is matched with structures such as buoyancy reinforcement, gravity center lowering and wind and wave resistance linkage, and is suitable for different scales and types of culture water areas. The application realizes on-site power consumption, eliminates hidden dangers of high-voltage power transmission, improves photovoltaic power generation efficiency, reduces operation and maintenance cost, takes into account power generation and culture ecology, and has high practicability.

The utility model discloses a three-axis adjusting platform for load butt joint. The three-axis adjusting platform comprises an X-axis movement module, a Y-axis movement module, a Z-axis bottom plate assembly, two parallel Z-axis movement modules, a U-shaped frame assembly and a support. According to the device, the two Z-axis movement modules are connected with the Z-axis bottom plate assembly, and the X-axis movement module and the Y-axis movement module are connected with the Z-axis bottom plate assembly, so that common X-axis and Y-axis movement control of the two Z-axis movement modules is achieved; the two sides of the U-shaped frame assembly are connected with the moving parts of the two Z-axis movement modules correspondingly, and under synchronous driving of the two Z-axis movement modules, up-down movement of the Z axis is achieved; the U-shaped frame assembly and the two Z-axis movement modules jointly form a Z-axis movement component, the structure is symmetrically arranged, and the possibility that the gravity center of the whole structure deviates from a supporting point too much to cause overturning is avoided.

The utility model relates to wind driven generator installation construction technical field discloses a kind of wind driven generator set anchor bolt installation construction safety auxiliary device, comprising: support frame, it includes top plate and two oppositely arranged side plates, and the both ends of top plate are respectively fixedly connected with two side plates;Pulley block and guide wheel set with rim respectively installed on the lower surface of top plate and the opposite surface of two side plates, the rotating shaft of pulley block and guide wheel set is respectively arranged along horizontal and vertical direction, pulley block and guide wheel set are respectively rotatably connected with the upper surface of upper anchor plate and side wall, and the lower rim of guide wheel set is used for abutting with the lower edge of upper anchor plate;And support rod assembly fixedly connected on the upper surface of top plate, support rod assembly is installed with hanging ring.Working operation time, the utility model can be with the different position of operating personnel operating position, the position of synchronous adjustment device on anchor plate is adjusted, working efficiency is improved, and it can be installed on different specifications of anchor bolt cage, and the versatility is improved.

The present application relates to the technical field of goods conveying, and discloses a port goods automatic conveying machine, which comprises a conveying assembly, the conveying assembly comprises a main body rack, a load conveying roller is rotationally connected in the main body rack, a conveying belt is sleeved on the outer surface of the load conveying roller, and goods guide plates fixedly connected to the inner wall of the main body rack are arranged on the two sides of the conveying belt. Through two-stage meshing transmission of a first driving rack and a first force gear and a second driving rack and a second force gear, combined with synchronous linkage of a connecting chain, the collection frame is driven to descend and move the clamping action of the moving seat, when the collection frame descends, the first rotating rod and the second rotating rod rotate in the same direction through the connecting chain, mechanical balance is formed, the moving seat vertically slides along the linear guide rod to push the goods clamping plate to synchronously approach in the linear guide groove, goods clamping and fixing are realized, and through precise meshing of the gear and the rack and synchronous transmission of the chain, the stability of the descending process of the collection frame is ensured.

This invention discloses a flexible container and its usage method, comprising a container body with piping fittings, a support assembly, and paddle blades; the support assembly includes a lifting plate, a base, and connecting supports; the lifting plate is fixed to the top of the container body, and the base is fixed to the bottom of the container body; the connecting supports are disposed inside the container body, with one end connected to the lifting plate and the other end inserted into or detached from the base; wherein, the connecting supports can rotate relative to the lifting plate and the base about the axis of the container body, and can also fold and extend along the axis of the container body; paddle blades are disposed on the connecting supports. Through the above-mentioned design, this invention can avoid the risk of the flexible container's membrane material being torn, scratched, or damaged by collision during transportation, installation, and transfer lifting, improving the container's structural stability and load-bearing capacity, and ensuring the integrity of the sterile environment inside the container.

The invention discloses a gravity anchor capable of automatically and greatly adjusting the length of a mooring rope, and relates to the technical field of offshore mooring equipment, the gravity anchor comprises a gravity anchor body, the mooring rope, a sealing cover, a scaling box and a safety cable, the sealing cover comprises a flexible sealing sleeve and a cylindrical shell, the cylindrical shell is fixed to the gravity anchor body through bolts, and an overflowing hole is formed in the side wall of the cylindrical shell; a filter screen is mounted in the overflowing hole; the lower end of the flexible sealing sleeve is hermetically sleeved on the upper part of the cylindrical shell; the scaling box is located in the cylindrical shell and comprises an outer shell, a fixing shaft and a coil spring. The shell is fixed in the cylindrical shell, the fixed shaft is fixed in the shell, the coil spring is wound on the fixed shaft, one end of the coil spring is fixed on the fixed shaft, and the other end of the coil spring is connected with the cable; the cable penetrates out of the top of the flexible sealing sleeve and is fixedly connected with the flexible sealing sleeve in a sealed mode. One end of the safety cable is fixedly connected with the gravity anchor, and the other end is fixedly connected with the cable on the upper side of the flexible sealing sleeve; the device can realize automatic adjustment of the length of the cable through a pure mechanical structure according to the change of the water level without power supply.

The application provides a single-column shock-absorbing signboard support and a use method thereof, and belongs to the technical field of municipal engineering; the signboard support comprises a stand column, a base is arranged at the bottom end of the stand column, a signboard panel is arranged at the top end of the stand column, the stand column comprises a movable pipe and a fixed pipe arranged coaxially, the bottom end of the movable pipe is inserted into the inside of the top end of the fixed pipe in an axially rotatable manner, the movable pipe and the fixed pipe overlap in the axial direction and form a damping energy dissipation section; the damping energy dissipation section is provided with a friction damping piece, a pre-tightening adjusting mechanism and a shear pin; the friction damping piece is attached to the outer wall of the movable pipe; the pre-tightening adjusting mechanism is arranged on the fixed pipe, and the inner end of the pre-tightening adjusting mechanism abuts against the friction damping piece; and the shear pin is inserted into the damping energy dissipation section in a radial direction. The shear pin can meet the use requirements of the signboard support under normal working conditions and working conditions with excessive load, so that the signboard panel and the stand column can be effectively prevented from being damaged or overturned; and the pre-tightening adjusting mechanism can meet the requirements of dissipating earthquake and wind-induced energy under different working conditions.

The application discloses a construction method for precise measurement and adjustment of pre-camber of a prefabricated T beam. The special device in the method comprises an adjusting device, a measuring device and a counterforce frame device, wherein the counterforce frame device is used in pairs with a beam support and a bearing ground beam to provide hydraulic downward pressure; the adjusting device controls lifting in the height direction by manual, electric or hydraulic mode to adjust the pre-camber of the prefabricated T beam; the measuring device measures the pre-camber of the prefabricated T beam by a laser displacement sensor, and the laser displacement sensor has a moving space in the length direction of the beam; the adjusting device and the measuring device are installed on the bearing ground beam with a spacing, and the number is multiple; through cooperation of the measuring device and the adjusting device, the pre-camber of the whole prefabricated T beam is adjusted, reasonable linear shape of the prefabricated T beam is obtained, the convenience and efficiency of adjustment are improved, and the labor intensity is obviously reduced.

The construction fence comprises two pairs of supporting frames, fence plates, connection reinforcing parts and telescopic inclined strut mechanisms, moving wheels are arranged at the bottoms of the supporting frames, the supporting frames comprise bottom transverse rods, telescopic supporting stand columns, U-shaped steel plates and rotating parts, the two ends of the fence plates are inserted into the U-shaped steel plates and are connected through connecting bolts, and the telescopic supporting stand columns are connected with the U-shaped steel plates through connecting bolts. The connecting and reinforcing part comprises a plurality of reinforcing rods arranged in the height direction of the U-shaped steel plate, the reinforcing rods are attached to the fence plate, and L-shaped connecting plates connected with the U-shaped steel plate are arranged at the two ends of the reinforcing rods; one end of the telescopic inclined strut mechanism is hinged to the bottom cross rod, and the other end of the telescopic inclined strut mechanism is hinged to the telescopic supporting stand column. The fence is simple in structure, the rotating pieces are arranged between the telescopic supporting stand columns and the U-shaped steel plates, angle adjustment between every two adjacent fences after the fences are installed can be achieved, adaptability is improved, moving wheels are arranged, moving and turnover of the fences are accelerated, and practicability is high.

The application discloses a structure for adjusting the inclination angle of left and right caterpillar belts of a drilling rig, and relates to the technical field of drilling rigs. First and second adjusting oil cylinders are arranged on the supporting frames of the left and right caterpillar belts respectively, and the piston rods of the first and second adjusting oil cylinders arranged in the vertical direction are rotatably connected with the supporting frames of the left and right caterpillar belts respectively. When the piston rods of the first and second adjusting oil cylinders are extended outward or retracted inward, the supporting frames of the left and right caterpillar belts are lifted or lowered respectively to produce forward and backward inclination. One of the first and second adjusting oil cylinders is rotatably arranged between the drilling rig base. The application can adjust the inclination angle of the left and right caterpillar belts of the drilling rig respectively, and can keep the center of gravity of the drilling rig from being inclined beyond the process requirement during the walking or drilling construction process of the drilling rig, so that the safety hidden danger is eliminated and the safety performance is improved. In addition, the inclination angle of the left and right caterpillar belts of the drilling rig can reach more than 40 degrees, the walking on a larger steep slope road surface is adapted, and the adaptability of the drilling rig to the field environment is improved.

The utility model discloses a T-beam electric welding auxiliary device capable of preventing welding slag from falling, and belongs to the technical field of road and bridge erection engineering auxiliary devices. The device comprises a collecting box which can be placed in an area clamped by beam ribs of two T beams; an inner cavity of the collecting box is hollow, and the top of the collecting box is open; a lifting lug is arranged at the top of the collecting box; a plurality of telescopic rods are mounted at the lower bottom of the collecting box; the extending end of the telescopic rod extends towards the outer side of the collecting box, and the telescopic rod is arranged in the horizontal direction; a positioning block is mounted at the extending end of the telescopic rod; a roller is rotatably mounted on the positioning block; the roller can roll on the inclined surface on the upper side of the horseshoe part of the T-beam; the protective device effectively solves the problems that an effective protective device is lacked when a pre-embedded steel plate or reinforcing steel bar between two T-beams is welded at present, and large fire risks exist.

This invention relates to the field of ring main units (RMUs), and discloses a safety protection RMU adapted to smart grids. The RMU includes a housing with two symmetrical left and right hinged doors at the door frame. A circular waterproof groove is also provided at the door frame. When closed, the doors enclose the waterproof groove. The RMU also includes a canopy assembly and a support assembly. The canopy assembly includes a tarpaulin, a straight plate, and a retractable rod. One end of the tarpaulin is connected to the retractable rod, and the other end is connected to the straight plate. This application achieves multiple seals when the door is closed through the waterproof groove and the tarpaulin. The height difference between the central rod and the straight plate allows the tarpaulin to form an inclined roof when the door is open, preventing rainwater backflow. A moving plate drives a U-shaped slider to laterally widen the tarpaulin and eliminate gaps. A gear and rack linkage automatically forms a diagonal brace when the RMU is pulled out, comprehensively improving the RMU's leak-proof performance, maintenance convenience, and operational safety.

The utility model discloses a steel coil packaging bracket, which relates to the technical field of steel processing equipment and comprises a bottom frame, two fixed rods are fixedly connected to the inner wall of the bottom frame, two rotating discs are in threaded connection to the inner wall of the bottom frame, two sliding grooves are formed in the inner walls of the rotating discs, movable rods are movably connected to the inner walls of the sliding grooves, and the movable rods are in threaded connection with the inner wall of the bottom frame. The outer portion of the movable rod is fixedly connected with a sliding block, the outer portion of the sliding block is fixedly connected with a positioning ring, two limiting grooves are formed in the inner wall of the bottom frame, the inner walls of the limiting grooves are movably connected with a limiting assembly, and the limiting assembly comprises a rotating handle. The positions of the two sliding blocks are changed to drive the two positioning rings to be close to or far away from each other, under the condition that the two positioning rings are close to each other, the fixing rods on the inner wall of the other bottom frame can be fixed, and the steel coil packaging bracket is of a modular splicing and adjustable positioning structure and is suitable for steel coils of multiple specifications.