129 results about "Engineering support" patented technology

The invention discloses a high and large formwork engineering supporting system construction method, and belongs to the technical field of building engineering. Comprising the following steps: step 1, arranging intelligent nodes in a high and large template support system to realize information sharing and group cooperative regulation and control among the nodes; step 2, dividing the support system into a plurality of mutually associated load control areas, and setting differentiated load control parameters; step 3, automatically optimizing a pouring path; 4, when the concrete strength reaches a preset threshold value, the supporting rigidity or the reserved deformation amount is automatically adjusted according to a preset program, and the concrete structure bears the dead weight step by step; 5, the temporary load is automatically compensated, when the load exceeds a safety threshold value, a load redistribution mechanism and a reinforcing device are triggered, meanwhile, an alarm is started, and abnormal data are pushed; and step 6, continuously optimizing control parameters, accumulating construction data, constructing a digital construction record and a knowledge base, and realizing intelligent iterative upgrading of the construction method.

The invention discloses an anchoring system prestress active regulation and control method based on surrounding rock deformation monitoring, and relates to the technical field of geotechnical engineering supporting, and the method comprises the following steps: arranging various types of sensors in a surrounding rock supporting area, and collecting transverse displacement, vertical displacement, stress change and environmental parameters of surrounding rock in real time; and the data is transmitted to the central processing unit through the wireless data transmission module. By monitoring surrounding rock deformation in real time, the response speed of an anchoring system is increased, and the long-term stability of an engineering structure is ensured; the prestress is intelligently regulated and controlled, fuzzy control and a self-adaptive PID algorithm are combined, dynamic adjustment is achieved, human intervention is reduced, and the supporting efficiency is improved; the maintenance cost is reduced, the service life of an anchoring system is prolonged, manual inspection and material waste are reduced, and economic benefits are improved.

The invention discloses an expansion capsule body for deformation control of underground engineering and a using method, and belongs to the technical field of underground engineering supporting. The expansion bag body is made of a high-strength composite material, a plurality of gas chambers or liquid chambers which can be independently controlled are arranged in the expansion bag body, and media are injected through an injection device to enable the expansion bag body to expand, so that uniform supporting force is provided for surrounding stratums. The capsule body is provided with a real-time monitoring sensor, the capsule body and a control system can form a closed loop, the supporting strength is dynamically adjusted according to real-time data of stratum stress deformation, and active and accurate deformation control is achieved. The support has the remarkable advantages that the repeated adjustment capacity of repeated inflation and deflation of gas or liquid is achieved, the requirement for long-term or repeated stratum deformation can be met, and the problems that traditional support response is delayed and an existing bag body cannot be adjusted are solved. The structure is reliable, construction is convenient and fast, the method is particularly suitable for soft and non-uniform geological conditions in projects such as tunnels and foundation pits, and the safety and adaptability of underground projects are effectively improved.

The utility model discloses an unloading plate type U-shaped groove body supporting structure which comprises a U-shaped groove body, a supporting plate is arranged on one side of the U-shaped groove body, the supporting plate is used for protecting the side, away from the supporting plate, of the U-shaped groove body, a fixing assembly used for fixing the supporting plate is arranged on the supporting plate, an unloading plate is arranged on one side of the top of the supporting plate, and the unloading plate is arranged on the other side of the top of the supporting plate. A connecting assembly used for connecting the unloading plate and the supporting plate is arranged between the unloading plate and the supporting plate. The utility model is convenient for improving the stability of building engineering support.

The utility model provides a quick-release inclined hoisting device for a foundation pit engineering supporting pipe. Comprising an inclined hoisting body, a fixing assembly used for fixing the foundation pit engineering supporting pipe is arranged on one side of the inclined hoisting body, the distance between two fixing plates can be adjusted by rotating a first threaded rod, and a second threaded rod, a friction block, a limiting rod and a limiting plate are arranged; a second threaded rod is rotated, and a friction block is pushed to move in the direction of the foundation pit engineering supporting pipe through rotation of the second threaded rod, so that the foundation pit engineering supporting pipe is fixed through the two fixing plates, and the foundation pit engineering supporting pipe is further fixed through movement of the second threaded rod and the friction block; and a plurality of grooves are formed in the surface of the friction block, other objects can be better grasped through the rough surface, the friction force is increased, and the fastening effect on the foundation pit engineering supporting pipe is improved.

The utility model relates to the technical field of steel structure supports, in particular to a steel structure engineering support which comprises a sliding column, a square frame, a plug pin column, a hollow column, an arc-shaped plate, a spring, a side plate, a plug pin rod, a supporting unit, an auxiliary unit and an installation unit. When the square frame moves, inserted bolt columns move in first bolt holes and second bolt holes, at the moment, arc-shaped plates make contact with the bolt columns, springs are compressed, the bolt columns are abutted against by the counter-acting force of the springs, the bolt columns are located in third bolt holes to assist the bolt columns in moving, and the auxiliary units are used for improving the moving stability of the square frame. The mounting unit is used for increasing the contact area of the sliding columns, the support is assembled and disassembled in this way, damage to the surface of the structure is avoided, and the fatigue strength of workers when the support is moved out is reduced.

This invention belongs to the field of foundation pit support technology, specifically relating to an adjustable foundation pit engineering support structure. It includes support units, each comprising a support base plate and a support frame plate. The support base plate rests against the foundation pit wall, and the support frame plate is connected to the support base plate via an adjustable support. A cross bracing device supports the support frame plates of two support units in opposite directions, and the two support units are mutually supported by the cross bracing device, with the adjustable support buffering the deformation pressure of the foundation pit wall. Support units in the same direction are spliced ​​together. This invention provides an adjustable foundation pit engineering support structure, employing an adjustable support structure that forms a recoverable elastic support system between the support base plate and the support frame plate. After pressure is unloaded, it can return to its original shape, improving the durability and reusability of the support structure.

This application discloses a prefabricated anchor bolt and support frame connector for rapid detection of locking force, relating to the technical field of engineering support connection structures. It includes an outer frame fixed to the support frame, two clamping plates slidably disposed within the outer frame for clamping the anchor bolt, and a locking module disposed on the outer frame for pressing the two clamping plates against the anchor bolt. The locking module is equipped with a deformation unit for feedback of the clamping force of the corresponding clamping plates against the anchor bolt, and the deformation unit has a specific deformation force value. This application transforms the complex force problem into a simple shape observation problem, reducing reliance on worker skills, ensuring a single operating standard, and guaranteeing uniform and compliant locking force for each anchor bolt.

The utility model discloses an engineering universal supporting structure applying pretightening force through high-strength bolts, and relates to the technical field of engineering supporting, the engineering universal supporting structure comprises two rotating bases, a connecting table and a plurality of high-strength bolt bodies, the two rotating bases and the connecting table are connected in a fastening mode through the high-strength bolt bodies, and the high-strength bolts are arranged on the connecting table. According to the engineering universal supporting structure capable of applying the pretightening force through the high-strength bolts, the high-strength bolt bodies sequentially penetrate through the long arc-shaped grooves and the circular grooves to be inserted into the threaded notches formed in the side plates to apply construction torque for fastening, and at the moment, the high-strength bolt bodies can bear axial loads transmitted by the rotating base; the two rotating bases and the connecting table can transmit tangential loads transmitted by the rotating bases through friction force generated by fastening of the high-strength bolt bodies, so that the loads are transmitted to the supporting structure, the structure can be adjusted in multiple directions, the structure can effectively bear force, torque and loads, and the using effect of the structure is improved.

The present invention discloses a green support system evaluation method considering carbon emissions, comprising the following steps: step S1, conducting a pre-construction evaluation in the support scheme selection and demonstration stage to determine the preferred scheme for the support selection scheme; step S2, establishing an industry green support evaluation benchmark; step S3, conducting a post-construction evaluation after the structure is constructed to zero or above and the fertilizer trough is backfilled, to determine the green rating of the specific engineering support system; the pre-construction evaluation includes: using a rank sum ratio comprehensive evaluation method to establish a multi-evaluation index optimization model, and the green index G of the pre-construction evaluation is used. i The calculation adopts the estimated carbon emission value based on the support design drawings and schemes; the post-construction evaluation includes: determining the green rating of the specific support project, and the evaluation index is the green index G of the specific project. s , the green index G of a specific project for post-construction re-evaluation s The final value of carbon emissions is calculated using instrument monitoring throughout the support process.

This invention discloses a method for determining the loosening load of the bearing arch in mega-span tunnels based on plastic zone parameters, relating to the field of geotechnical engineering and underground engineering support design technology. The method includes the following steps: inputting tunnel and support parameters; obtaining the height of the plastic zone at the arch crown through numerical simulation; calculating the equivalent thickness of the bearing arch formed by the system anchors; determining the equivalent loosening load height; calculating the vertical loosening pressure; determining the lateral pressure coefficient based on the surrounding rock strength index; calculating the non-uniformly distributed horizontal loosening pressure; and cyclically outputting the verified load through load displacement verification. This invention directly incorporates the plastic zone development state into the load calculation and establishes a self-correction mechanism, achieving refined and dynamic determination of the loosening load, thus improving the safety and economy of mega-span tunnel support design.

The utility model relates to the technical field of engineering supports, and provides a curve radius precast beam transverse moving support which comprises a plurality of embedded steel plates evenly distributed on the top of a cover beam. The steel pipe columns correspond to the embedded steel plates, are arranged on the embedded steel plates and are connected with the embedded steel plates; the connecting rod pieces are sequentially connected with the multiple steel pipe columns in series to form an integrated structure; and the track is arranged at the top of the steel pipe column and is used for bearing the bridge erecting machine to transversely move. The device can be continuously erected hole by hole, can be erected on a higher pier body, and is convenient to mount and dismount.

The invention relates to the technical field of underground engineering support, and discloses an anchor rod active prestress releasing system for deep surrounding rock stability control, which comprises an anchor rod body, a prestress applying assembly, a surrounding rock state monitoring assembly, a prestress executing and releasing assembly and a central control unit. One end of the anchor rod body is anchored to the bottom of a deep surrounding rock preset drill hole, and the other end of the anchor rod body extends out of the drill hole. The prestress applying assembly is arranged at the end, extending out of the drill hole, of the anchor rod body in a sleeving mode and used for applying initial prestress to the anchor rod body. Surrounding rock stress and displacement data are collected in real time through the surrounding rock state monitoring assembly, the central control unit automatically judges and drives the prestress executing and releasing assembly to act according to a preset threshold value, and the limitation that a traditional anchor rod cannot be adjusted according to dynamic changes of surrounding rock after prestress is applied is broken through. And stress redistribution generated by excavation disturbance of the deep surrounding rock can be adapted in time.

The utility model provides a safety support, which relates to the technical field of engineering supports and comprises a movable base, and a corner support is fixedly arranged on the side of the top of the movable base. Four groups of lead screws are rotationally arranged between the movable base and the upper part of the corner bracket; the side of the lifting platform is in threaded connection with the four sets of lead screws; the top of the lifting platform is slidably provided with a sliding cross rod matched with the guide rail. The top of the sliding cross rod is slidably provided with a supporting rod matched with the guide rail. A lifting sleeve is slidably arranged outside the supporting rod; the top sliding cover is arranged, complete top protection is provided, the top sliding cover can be unfolded towards the two sides, when a roof needs to be constructed, the positions of the transverse sliding beams and the longitudinal sliding beams can be adjusted, the transverse sliding beams and the longitudinal sliding beams can keep the overall stability of the support, supporting force is provided, and construction is convenient; the problem that an existing safety support lacks top protection is solved.

The invention belongs to the technical field of foundation pit supporting, and particularly relates to an adjustable foundation pit engineering supporting structure. Comprising a supporting unit, and the supporting unit comprises a supporting base plate and a supporting frame plate; the supporting base plate is attached to the wall of a foundation pit, the supporting frame plates are connected with the supporting base plate through adjustable supports, a transverse supporting device is supported between the supporting frame plates of the two supporting units in the opposite direction, the two supporting units are supported through the transverse supporting device to achieve counter-force supporting, and the supporting units buffer deformation pressure of the wall of the foundation pit through the adjustable supports. The supporting units in the same direction are mutually spliced; according to the adjusting type foundation pit engineering supporting structure, the adjusting type supporting structure is adopted, a recoverable elastic supporting system is formed between the supporting base plate and the supporting frame plate through the adjusting type supporting structure, the original shape can be recovered after pressure is unloaded, and the durability and reusability of the supporting structure are improved.

The utility model discloses a constructional engineering supporting device convenient to disassemble, and relates to the technical field of building construction. The device comprises a base, a dismounting mechanism is arranged at the top of the base, and a lifting mechanism is arranged at the top of the dismounting mechanism. By arranging a mounting table, when a constructor needs to use the device, firstly, a pull rod on the mounting table is pulled, so that a first spring is compressed by a limiting ring on the outer surface of the pull rod; at the moment, a pull rod slides in a through groove, then a mounting plate is placed in a square groove, then a mounting base on a fixing table is rotated, when the mounting base is rotated to a proper position, a first threaded rod is rotated, the first threaded rod downwards presses a fixing block while moving downwards, a pressurizing rod downwards moves to compress a second spring, and at the moment, the fixing block downwards moves; and the mounting plate is fixed, so that the effect of quick mounting and dismounting is achieved, the trouble caused by too complicated dismounting of the supporting device is reduced, and the problem that the conventional supporting device is inconvenient to dismount is solved.

This invention discloses an automatic centering and overlapping device for hollow grouting anchor rods and its usage method, belonging to the field of geotechnical engineering support. It includes a high-strength connecting shell for connecting two hollow grouting anchor rods. A cross-shaped mounting plate is located in the middle of the high-strength connecting shell, between the two hollow grouting anchor rods. Four sets of retractable and extendable straightening mechanisms are respectively arranged on the cross-shaped mounting plate. Each straightening mechanism includes a lightweight moving rod that extends out of the high-strength connecting shell under grouting pressure. The end of the lightweight moving rod has an outer support plate for straightening the position of the hollow grouting anchor rod. The tail of the lightweight moving rod has a liquid driving device powered by the grout, which drives the lightweight moving rod to move under the drive of the grout. By applying grouting pressure, the automatic outer support device moves towards the surrounding rock of the borehole until it contacts the rock, achieving automatic centering.

The utility model discloses constructional engineering supporting equipment which comprises an equipment base, an adjusting type supporting protection structure and a supporting device. The adjustable supporting and protecting structure comprises a connecting plate, three combined grooves, a folding supporting plate, a pair of rotating hinged supports, a pair of spiral supporting rods, a telescopic rod, a pair of spiral sleeves, a clamping rod and a pair of unfolding supporting structures. The utility model relates to the technical field of building construction equipment, and has the beneficial effects that the problems that when an existing wall body is constructed and poured, an external template is combined and fixed through locking structures such as bolts and the like, a wider wall body only bears the pressure of internal concrete through the template, but the pressure of the internal concrete is too large, so that the construction cost is low are solved; the problem that the construction quality and the construction efficiency are affected due to the fact that the formwork is damaged or the connecting position is damaged and leaked is solved.

The utility model discloses a novel constructional engineering supporting device, and relates to the technical field of constructional engineering. The damping device comprises a supporting plate, a damping mechanism is arranged at the bottom of the supporting plate, a lifting mechanism is arranged at the top of the supporting plate, and the damping mechanism comprises a damping top plate. When a supporting plate is pressed downwards, a second rotating shaft in a second rotating shaft fixing frame rotates, the second rotating shaft is driven to rotate, a built-in damping rod located at the bottom of a damping top plate is driven to be compressed into the damping rod, a spring also presses downwards, at the moment, the internal pressure of the damping rod is increased, and hydraulic oil located in the damping rod is extruded to move towards the built-in damping rod through an oil passing hole; and the built-in auxiliary rod is driven to contract into the auxiliary rod, the first rotating shaft also drives the auxiliary rod to move, and therefore the auxiliary device is assisted in damping, and the damping device has the advantages that damping is conducted on the device, the building materials are prevented from being subjected to large impact force when placed on the device, and damping is conducted on the device.

The present invention discloses a two-stage pressure-yielding anchor rod device and method capable of monitoring preload, which belongs to the field of underground engineering support such as lanes, tunnels and tunnels. It includes a special-shaped anchor rod and a preload monitoring device, etc. The special-shaped anchor rod includes a special-shaped hollow anchor rod and a solid anchor rod that are combined with each other. The solid anchor rod is arranged at the front end of the special-shaped hollow anchor rod, and the end of the special-shaped hollow anchor rod is provided with a sliding cavity that matches the tail of the solid anchor rod. The tail of the solid anchor rod and the sliding cavity of the end of the special-shaped hollow anchor rod are intersected and combined to form a piston structure that can slide relatively. A preload monitoring device is provided at the intersection; when the surrounding rock undergoes large deformation, the device can simultaneously achieve constant resistance large deformation, ensure that the anchor rod and the anchoring structure are not damaged, and can also read the preload. Its structure can not only achieve the pressure-yielding effect, but also accurately monitor the size of the preload in real time. It has the advantages of diverse functions, accurate data, reasonable structure, and economic applicability.

The utility model discloses a constructional engineering supporting device which comprises a main body, an extending mechanism and a reinforcing mechanism, the extending mechanism comprises a fixing rod, a rotating rod, a connecting block, a half pipe and a closing mechanism, and the closing mechanism comprises a spring, a connecting rod, a push plate and a fixing frame. The reinforcing mechanism comprises a supporting rod, a connecting disc, a wrapping piece, a fixing bolt, a fixing nut and a supporting plate, under the mutual cooperation effect of the mechanisms, the device is suitable for different building environments and high in flexibility, by extending the supporting rod, the device can rapidly adapt to construction changes, the diversity requirements of supporting equipment are reduced, and then the cost is saved; the safety of the supporting device during storage and transportation is guaranteed through the fixing function of the device, and damage or danger caused by accidental stretching is prevented.

The invention discloses an anchoring device for tunnel rockburst prevention and control and a using method of the anchoring device, and belongs to the technical field of underground engineering supporting. The device comprises an anchor rod and an inner push rod, the anchor rod is of a hollow structure with one closed end and one open end, and a drill bit is arranged at the closed end; the inner push rod can be placed into the anchor rod from the open end of the anchor rod and move in the axial direction of the anchor rod, and the anchor rod and the inner push rod can rotate synchronously. An expandable blade is arranged on the inner push rod, a second axial groove is correspondingly formed in the anchor rod, the blade can retract into the anchor rod along with the inner push rod in the initial state, and when the inner push rod moves to the position where the blade corresponds to the second axial groove, the blade is expanded, and the outermost peripheral size is larger than the peripheral size of the anchor rod; a grouting channel is formed in the anchor rod or the inner push rod and used for grouting the gap outside the anchor rod and the gap between the anchor rod and the inner push rod. The unfolded blade clamps the rock mass to form mechanical anchoring, which plays an important role in real-time rockburst prevention and control; and drilling, cutting, bolting and grouting integrated operation can be achieved, and the efficiency bottleneck of traditional distributed construction is broken through.

The utility model relates to a novel support system, which belongs to the technical field of constructional engineering support scaffolds and comprises two pieces of cross beam steel, vertical beam steel is mounted between opposite sides of the two pieces of cross beam steel, a square steel frame is mounted between the two pieces of cross beam steel, and a connecting structure and an adjusting structure are arranged on the top cross beam steel. According to the novel support system, by arranging the cross beam steel, the vertical beam steel and the square steel frame, the frame part of the vertical supporting system forms a bailey beam, so that the vertical supporting system of the scaffold forms stable geometric rigidity in an ideal state, and the construction load and the erection height of the scaffold are further improved; and a plurality of bailey beams can be conveniently spliced to form the vertical supporting system according to the construction height, the two bailey beams can be rapidly connected through the connecting frames and the locking plates, stable connection between the bailey beams is guaranteed, and the vertical supporting system formed by the bailey beams is more stable and reliable.

The utility model relates to the technical field of mining engineering supports, and discloses a folding roadway supporting support for mining engineering, which comprises a support, and a storage mechanism is arranged on the outer wall of the support. The storage mechanism comprises a guide plate fixedly connected to the outer wall of the support, a sliding block is slidably connected to the outer wall of the guide plate, an X-shaped connecting frame is rotatably connected to the inner surface of the sliding block, a positioning assembly is arranged on the inner wall of the front portion of the support, and a positioning column and a connecting column are fixedly connected to the front surface of the support. A moving assembly is arranged on the inner wall of the bottom of the support, and the positioning assembly comprises a rotating plate rotationally connected to the inner wall of the front portion of the support. According to the utility model, after the plurality of groups of contracted brackets are adjusted to a certain position, the limiting of the rotating plate is relieved, and then the whole bracket is pulled open, so that the operation is simple and convenient, and the plurality of groups of brackets do not need to be adjusted one by one, thereby improving the overall working efficiency.

The utility model relates to the technical field of engineering supports, in particular to a support for steel structure engineering, which comprises a pull rod component, the pull rod component comprises two pull rods, the top of each pull rod is provided with a connecting component, the connecting components are used for fixing the pull rods, the pull rods are vertically provided with first sliding grooves in a penetrating manner, and a cross rod component is arranged between the pull rods. And the cross rod assembly is connected with the pull rod through a quick release assembly. According to the utility model, the quick release assembly is arranged, and the bolt is inserted into the first chute and penetrates through the positioning hole and the through hole, so that the pull rod and the cross rod are fixed; through clamping connection of the clamping block and the first sliding groove, the bolt is fixed, and the bolt is prevented from being separated from the through hole; the rotary knob is used for driving the bolt to rotate by 90 degrees, clamping connection between the clamping block and the first sliding groove can be relieved, the sliding rod is pushed towards the clamping ring, the clamping ring can be driven to be away from the pull rod, the bolt is driven to be separated from the through hole, the cross rod can slide along the pull rod, and the height of the cross rod is rapidly adjusted.

The utility model relates to a supporting device for constructional engineering. Comprising a movable foundation frame, a lifting platform is installed on the top of the foundation frame, a lifter is installed between the foundation frame and the lifting platform, a jacking assembly is installed on the lifting platform, and an expanding device for controlling deformation is installed in the jacking assembly; the jacking assembly comprises a base detachably connected with the lifting platform, a left shaft seat and a right shaft seat are arranged on the base, a left bottom shaft and a right bottom shaft are installed on the base, the jacking assembly further comprises a left folding supporting arm and a right folding supporting arm, middle shafts are arranged in the middles of the folding supporting arms, the lower ends of the folding supporting arms are fixedly connected with the shaft ends of the bottom shafts, and the upper ends of the folding supporting arms are connected through top shafts in a hinged mode. A front base plate and a rear base plate are arranged at the bottom of the top supporting plate, the base plates are fixedly connected with the shaft end of the top shaft, and the expanding device is installed between the two middle shafts and drives the two middle shafts to change the distance. According to the utility model, the use flexibility and the supporting and adjusting operation characteristics are improved.

The utility model relates to a constructional engineering supporting device which is characterized in that the upper end of a vertical supporting frame is connected with a supporting platform through screws, a plurality of first mounting holes are formed in the lower portion of the vertical supporting frame, the upper end of an inclined supporting frame is connected with the supporting platform through screws, and the lower end of the inclined supporting frame is connected with the vertical supporting frame through screws; a height adjusting frame is detachably arranged on the lower portion of the vertical supporting frame, an L-shaped supporting frame is detachably connected to the height adjusting frame, a cross beam is detachably connected to the lower portion of the vertical supporting frame, a guide sleeve is fixedly arranged in the middle of the cross beam, and the end, close to the inclined supporting frame, of the guide sleeve penetrates through the height adjusting frame; one end of the threaded rod penetrates out of the guide sleeve to be provided with a handle, and the other end of the threaded rod penetrates out of the guide sleeve to be connected with a clamping block. The vertical supporting frame, the inclined supporting frame height adjusting frame, the L-shaped supporting frame and the supporting rod connecting frame are all detachably connected, can be directly installed and used on site, and are convenient to install, disassemble, assemble and transport.

The utility model discloses a stable steel structure engineering support, which relates to the technical field of steel structure engineering, and comprises a base mechanism, the top of the base mechanism is in bolted connection with a supporting mechanism, the top of the supporting mechanism is fixedly connected with a moving mechanism, the supporting mechanism comprises a stand column, and the surface of the stand column is provided with an adjusting hole. Adjusting columns are inserted into the stand columns, adjusting bolts are inserted into the stand columns, and the surfaces of the adjusting bolts are in lap joint with the interiors of the adjusting columns. Through the arrangement of the supporting mechanism, the height of the adjusting column located in the stand column can be adjusted according to actual requirements when the support is assembled, so that the height of the platform is changed, the support can meet the construction requirements of different heights, meanwhile, the platform is arranged on the surface of the sliding rail, the weight of the platform is transferred to the top longitudinal beam through the sliding rail, and compared with a conventional mode that the platform slides along a sliding rod, cost is reduced. And the sliding path is not easy to deform due to overlarge weight of the platform, so that the platform is more convenient to use.

The utility model discloses a steel structure engineering support convenient to adjust, and particularly relates to the technical field of engineering supports, the steel structure engineering support convenient to adjust comprises a cross beam, two lifting columns are symmetrically arranged at the bottom of the cross beam, a toothed plate is installed on one side of each lifting column, the bottom end of each lifting column is connected with a bottom cylinder in a sliding mode, and a base is installed at the bottom end of each bottom cylinder. And a fixing frame is welded to one side of each bottom cylinder, a driving mechanism connected with the toothed plate in a meshed mode is installed on each fixing frame, two distance adjusting mechanisms are installed at the top end of the cross beam, a rotating assembly is installed on each distance adjusting mechanism, and guide rods are jointly connected to the two sides of the two distance adjusting mechanisms in a sliding mode. By means of the driving mechanism, the distance adjusting mechanism and the rotating assembly, adjustment of the height of the support and the position and angle of the rotating assembly is achieved, and the steel structural part adjusting device has the advantages of being capable of adapting to steel structural parts of different heights, positions and angles and improving universality and connection firmness.

The utility model relates to the technical field of steel structure engineering construction, in particular to an engineering support convenient to butt joint and install, which comprises a supporting base, a supporting column is fixedly connected to the center of the top of the supporting base, supporting assemblies are installed on the top of the supporting column through a quick connection assembly, and a bearing frame and a ladder stand piece are inserted between the supporting assemblies. And a protection assembly is mounted at the top of the supporting assembly. According to the improved engineering support, the quick connecting assembly is additionally arranged, the supporting base and the supporting assembly can be quickly installed, other parts are effectively installed in an inserted connection mode, welding or bolt connection or other modes are not needed, the whole process is relatively easy, the protection assembly is additionally arranged, and the protection effect is good. According to the protective device for the working personnel, the working personnel can be protected to a certain extent, the working efficiency is effectively improved, the bottom plate has certain anti-skid performance through the design of the anti-skid gaskets, and the situation that the working personnel fall down is effectively reduced.