60results about How to "Solve the damage" patented technology

The invention provides an aluminum ring-pull can cover material passivating agent for water-based paint. The aluminum ring-pull can cover material passivating agent is prepared from the following raw materials in percentage by weight: 0.5-5% of a chromium source, 1-5% of a reducing agent, 1.5-6% of a film-forming agent, 1-5% of a silane coupling agent and the balance of deionized water. The invention is applied to water-based paint, the dyne value of a passive film is increased, a surface on which the water-based paint can be quickly wetted and spread is provided, the stability of a passivated film-forming structure is improved, and the abnormal coating performance of the water-based paint caused by the unstable structure of the passive film in the long-term use process is avoided. And the compactness and wear resistance of a passivation film are improved, and the problem that after passivation treatment, a passivation layer is damaged and abraded after the aluminum plate strip passes through a conveying roller and a steering roller is solved. Meanwhile, the passivation film-forming temperature is reduced, and it is guaranteed that a compact passivation film is rapidly formed under the condition that an existing technology is changed and energy consumption is not increased through passivation.

The invention relates to the technical field of stone processing treatment, in particular to a mine quarrying face in-situ stone crawler belt impact type roller rough machining device, an impact type roller crushing device is arranged above a crawler belt type driving part, and a heavy chain type scraper conveyor is arranged below the crushing device; the scraper conveyor comprises a feeding section, a concave section and a discharging section, and the concave section is arranged below the crushing device; a power conveying roller is arranged above the concave section and is provided with a spiral guide rail; the power conveying roller is connected with a crushing bearing bottom plate which is elastically connected in the feeding and discharging direction. A rolling shaft of the impact type rolling shaft crushing device is arranged in the crushing cavity, and the distance between the vertical projection of the outer edge line of the foremost hammer head of the rolling shaft on the crushing bearing bottom plate and the foremost feeding outer edge of the crushing bearing bottom plate is not larger than one half of the distance between the foremost hammer head and the vertical projection of the crushing bearing bottom plate. The problems that materials are prone to being blocked during in-situ crushing on a mine quarrying face, and damage to a material conveying device is large are solved.

The invention discloses a method for treating the inner surface of a stainless steel gas pipe assembly for a semiconductor. The method for treating the inner surface of the stainless steel gas pipe assembly for the semiconductor comprises the following steps that firstly, the inner surface of the stainless steel gas pipe assembly is subjected to basic pretreatment, so that the surface roughness of the stainless steel gas pipe assembly reaches the precision capable of being subjected to finish machining; secondly, multi-stage mechanical polishing is carried out through grinding materials with the granularity gradually reduced, so that the roughness of the inner surface of the stainless steel gas pipe assembly reaches the target precision; and thirdly, the inner surface of the stainless steel gas pipe assembly is treated through electrolytic polishing, and a high-precision passive film is generated on the inner surface of the stainless steel gas pipe assembly. In this way, the smoothness and corrosion resistance of the inner surface of the stainless steel gas pipe assembly can be effectively improved, the overall service life of the pipeline is prolonged, the influence of the pipeline on high-purity gas is remarkably reduced, and the strict requirement of the semiconductor tip technology manufacturing procedure for gas purity is met.

The utility model discloses a stainless steel anti-static needled felt PTFE film covering structure which comprises a bottom plate, a first box body is fixedly connected to one side of the upper surface of the bottom plate, pressing rollers are symmetrically arranged in an inner cavity of the first box body, heating rollers are symmetrically arranged in an inner cavity of a second box body and are vertically and symmetrically arranged, a PTFE film is arranged on the inner side of the heating roller on the upper side, and a PTFE film is arranged on the inner side of the heating roller on the lower side. The other side of the PTFE film is in clearance fit with the inner wall of the first box body, and the lower surface of the PTFE film is attached to the side wall of the stainless steel anti-static needled felt. In the PTFE laminating process of metal stainless steel fibers, the existing process is improved, two groups of press rollers are arranged for working, an opened stainless steel anti-static needled felt is firstly placed between the press rollers, and meanwhile, the stainless steel anti-static needled felt is uniformly paved, so that the damage to a PTFE film on the surface in the laminating process is reduced, and the working efficiency is improved. The service life of the PTFE film is prolonged, the reliability of the PTFE film is improved, and the problem that the PTFE film on the surface is damaged by the stainless steel anti-static needled felt is solved.

The application belongs to the technical field of hydraulic clamp manufacturing, and specifically relates to a hydraulic clamp for valve body cover shells, which comprises a hydraulic clamp body and a control mechanism located in the hydraulic clamp body, the hydraulic clamp body comprises a supporting bottom plate, supporting vertical plates are fixedly connected to the two sides of the supporting bottom plate, and the left side of the left supporting vertical plate is fixedly connected with the output end of a first motor. The placing block at the bottom of the valve body cover shell is inserted into the placing groove, the hydraulic pump is used to control the hydraulic oil cylinder to pull the limiting mechanism to limit and fix the valve body cover shell, the first motor is used to control the rotation of the hydraulic clamp body, the opposite two surfaces of the shell can be machined in the CNC, the second motor is used to control the rotation of the rotating rod, the direction of the pressing plate is adjusted, the valve body cover shell can be extruded and fixed, and the problem that only one surface of the valve body cover shell can be machined after the workpiece is clamped and limited by the traditional hydraulic clamp is solved.

The utility model relates to the technical field of water treatment, in particular to a coal mining subsidence area photovoltaic power station panel cleaning water dirt collecting and adsorbing device which comprises a box body, a water inlet hopper, a mounting seat, a rotating rod, an impeller, two cams, a fixing block and spherical rods. The two ends of the two second springs are connected with the upper surfaces of the two fixing blocks and the lower surface of the spherical rod correspondingly. According to the utility model, fine dust particles are accurately and effectively blocked and heavy metal ions are collected and adsorbed through a multi-layer treatment system in the box body, and meanwhile, the vibration assembly is adopted, so that the preliminary filtering effect can be improved, and dust accumulation, blockage and influence on the filtering effect after long-time use are avoided; the problems that existing cleaning water flows into rivers and lakes without being treated, and the ecological environment of the rivers and the lakes is polluted and damaged to a certain degree are solved.

The application discloses a kind of knowledge embedding and retrieval method and system of multi-modal PDF document, specifically relates to knowledge embedding and retrieval field, the present application uses multi-modal big model identification picture, table and other non-text elements in PDF, generates its position coordinate, converts picture into structured literal description and stores source URL;Second, the original text, picture description and URL are integrated into Markdown format, then, adopt the strategy of gradual blocking: each picture information is individually used as text block, and the remaining pure text is blocked according to character length;Subsequently, all text blocks are vector embedded, and the type is stored as metadata into vector database;Finally, in the retrieval stage, relevant text blocks are returned based on vector similarity;In the generation stage, single mode or multi-modal model generates accurate answer using text content and picture URL.

This utility model relates to a manhole structure, belonging to the field of pipeline construction technology. Specifically, it is a structure for adding a tee manhole above a large-diameter pipeline. It includes cast-in-place piles on both sides of the existing pipeline, with a bearing plate fixedly connected to the upper surface of the piles. It also includes a manhole body mounted on the bearing plate, with a new pipeline opening on one side and an inspection port on the top. A pre-reserved opening is formed through the upper surface of the bearing plate, with an opening side beam on the inner wall of the opening, which contacts the existing pipeline. This utility model retains the manhole form while avoiding the additional structural load falling on the original pipeline, reducing its impact. It solves the problem that existing traditional manhole forms cannot meet the bearing capacity of the manhole and are prone to damaging the original pipeline.

The present invention provides a multi-head shock wave electrode structure and a shock wave balloon catheter. The multi-head shock wave electrode structure includes at least two discharge units; each discharge unit includes an emitter electrode and a corresponding intermediate electrode which are arranged at intervals and have the same extension direction, and the emitter electrodes are arranged in the intermediate electrode at intervals one by one; all the intermediate electrodes are electrically connected to each other; when the discharge end faces of all the intermediate electrodes and the discharge end faces of all the emitter electrodes are located in a conductive fluid and a potential difference is formed between the emitter electrodes of any two discharge units, shock waves are simultaneously triggered between the discharge end faces of the emitter electrodes of the two discharge units and the discharge end faces of the corresponding intermediate electrodes. The shock wave balloon catheter includes the multi-head shock wave electrode structure. The present invention solves the problem of damage caused by mechanical impact force while realizing a single effective discharge breakdown to form a large shock wave energy, and has a long service life.

The invention discloses a solar cell, a preparation method thereof and a photovoltaic module. The preparation method comprises the following steps: providing a substrate; forming a conductive layer on one side of the substrate; a passivation layer and a composite mask layer are formed on the side, away from the substrate, of the conductive layer, the passivation layer is provided with a plurality of first hollowed-out areas, the first hollowed-out areas are at least arranged at intervals in the preset direction, and the preset direction is parallel to the surface of the side, away from the substrate, of the conductive layer; the composite mask layer at least comprises a first sub-mask layer and a second sub-mask layer, the first sub-mask layer is provided with a plurality of second hollow-out areas, the second sub-mask layer is provided with a plurality of third hollow-out areas, the first hollow-out areas and the second hollow-out areas are in one-to-one correspondence, and the projections of the first hollow-out areas and the second hollow-out areas on the conductive layer are overlapped; the projection of the first hollow area on the conductive layer is located in the projection of the third hollow area on the conductive layer. The problem that the passivation layer is damaged in the process of patterned windowing of the passivation layer of the solar cell is solved.

The present invention provides an air spring upper support, a vehicle air spring assembly and a vehicle. The air spring upper support (100) is used for an air spring of a vehicle, wherein the air spring upper support (100) is configured as a split structure having an upper shell (1) and a lower shell (2), the upper shell (1) and the lower shell (2) are connected to each other and form a receiving space (3), and the air spring upper support (100) also has a bushing (4), and the bushing (4) is arranged in the receiving space (3).

The invention relates to the technical field of film blowing, in particular to a film blowing device capable of automatically detecting and adjusting the thickness and a film blowing method.The film blowing device capable of automatically detecting and adjusting the thickness comprises a base, a supporting frame, a supporting groove, an adjusting roller, a replacing mechanism, a gap adjusting mechanism and a rotating mechanism; the supporting frame is fixedly arranged on the base and located on one side of the film blowing machine, the supporting grooves are formed in the two opposite side walls of the supporting frame, two adjusting rollers are arranged in the supporting frame, and a first supporting block and a second supporting block are arranged at the two ends of each adjusting roller correspondingly. The first supporting block and the second supporting block extend into the supporting groove and are in sliding connection with the side wall of the supporting groove, the replacement mechanism is arranged between the adjusting roller and the first supporting block, and through the technical scheme, the problem that in the related technology, a film and a plate are prone to being damaged due to friction is solved.

According to the novel industrial furnace hanging separation wall, anchoring hooks made of carbon steel or stainless steel round steel are arranged in the separation wall, and expansion gaps are reserved in the anchoring hooks in the mode that asphalt is coated or a plastic film is wound. The anchoring hooks comprise a horizontal anchoring hook, a vertical anchoring hook and a V-shaped anchoring hook; the horizontal anchoring hooks and the vertical anchoring hooks are connected to form a net-shaped checker, and the vertical anchoring hook at the uppermost end is welded on a steel plate at the top of a furnace body; the adjacent anchoring hooks are detachably connected; a plurality of V-shaped anchoring hooks are welded on each horizontal anchoring hook and each vertical anchoring hook; the outer side of the net-shaped checker is wrapped with a refractory material; and the refractory material and the net-shaped anchoring hook checkers jointly form a separating wall with an integral structure. The problem that the castable is damaged by expansion of the large-size anchoring hook is solved, the stability of the separating wall is improved, and the service life of the kiln can be effectively prolonged.

The invention discloses an application method of a novel yielding anchor rod. The application method comprises the following steps that the yielding anchor rod is manufactured; the yielding anchor rod comprises an outer sleeve and an inner sleeve; the inner sleeve is arranged in the outer sleeve; a lug boss is arranged on the outer wall surface of the inner sleeve; a first opening is formed in the wall face of the outer sleeve, and the protruding part is arranged in the first opening in a penetrating mode. The axial length of the first opening is larger than the axial length of the outer wall face, provided with the protruding part, of the inner sleeve. Drilling and cleaning the interior of a hole; a cement cartridge is mounted at the tail end of the outer sleeve; pushing the yielding anchor rod into the drill hole until the yielding anchor rod reaches a designed position; a grouting pipe is inserted from the inner sleeve for grouting, and the protruding part is jacked into the surrounding rock for anchoring through grouting pressure; a connecting mechanism is installed at the head end of the outer sleeve, and the yielding anchor rod is fixed to surrounding rock. According to the application method of the novel yielding anchor rod, prestress and anchoring performance are provided, the yielding anchor rod can slide to yield, and pressure is released in time.

The utility model discloses a combined type support device for an electric instrument, which belongs to the technical field of ocean engineering equipment and comprises a grating plate, a support base arranged on the grating plate, a first through hole arranged on the support base, a J-shaped bolt arranged in the first through hole, a nut screwed with the J-shaped bolt after hooking the grating plate and penetrating through the first through hole, and a fastening nut. And the bracket base is connected with the grating plate so as to fix the bracket base and the grating plate, and the bracket base is connected with the electric instrument equipment bracket, so that the bracket base supports the electric instrument equipment bracket. According to the utility model, a large amount of modification work of the grating in construction is reduced, the problem of damage to a zinc layer of the grating is solved, the installation flexibility of the bracket of the electric instrument equipment is enhanced, the installation working efficiency of the electric instrument equipment is improved, the construction cost is reduced, the fire operation of a construction site is reduced, and the safety of the construction operation is improved.

The invention discloses a novel material heating method which comprises the following steps: (1) preparing a container, namely preparing the container, and putting a material to be processed into the container; (2) steam heating: according to the quality properties of different substances, firstly adding the substances, or firstly injecting steam, and then adding the substances needing to be heated; (3) water heating: according to the quality properties of different substances, firstly adding the substances, or firstly injecting water, and then adding the substances needing to be heated; and (4) baking and heating: putting the substance into a tool made of soil, and heating and baking. According to the technical scheme, the container, steam heating, water heating, baking heating and the like are adopted, the problem that in the prior art, when Chinese herbal medicine, other medicine and substances are processed, substance genes, components and elements are damaged by the temperature is solved, the substances are processed according to the naturally formed temperature, the substance genes, the components and the elements are prevented from being damaged, and the quality of the Chinese herbal medicine, the other medicine and the substances is improved. And the effective performance and function of the substance can be exerted.

The invention relates to an instantaneous large overload resistant spacecraft structure, which comprises: a main body structure, which comprises a plurality of bearing columns, the outer surfaces of which define a revolution body and are configured to bear an overload impact force; the support beams are arranged between every two adjacent force bearing columns and are configured to provide mounting points for the single aircraft; the end connecting structures are located at the two ends of the main body structure and provided with first threads. The spacecraft structure adopts a gyration body configuration, the stability and strength of the structure are effectively improved, the transverse rigidity of the structure is increased through the gyration body structure, the pointing precision of the spacecraft is effectively improved, the critical yield load coefficient of the structure is increased, and the problem that the structure is damaged due to configuration instability when subjected to large overload impact is solved; and uniform stress of the structure is ensured when the structure bears instantaneous overload, and damage caused by stress concentration is avoided.

The invention discloses application of a PmchoC gene in prevention and treatment of kiwi fruit soft rot, compared with a wild type, after the PmchoC gene of pestalotiopsis microspora is knocked out, the integrity of a cell wall is obviously reduced, the sporulation quantity and the germination rate are obviously reduced, and the diameter of a scab is obviously reduced after the pestalotiopsis microspora is inoculated to kiwi fruits; the gene is proved to be capable of directly influencing the pathogenicity of pestalotiopsis microspora; by spraying the dsRNA of the PmchoC gene, the diameter of the scab of the kiwi fruit is reduced by 55.26%, the diameter of the scab of the leaf is reduced by 67.88%, and the PmchoC-dsRNA relieves the disease symptom of the soft rot of the kiwi fruit by inhibiting the expression of the PmchoC gene in pestalotiopsis microspora. According to the method, a spraying-induced gene silencing technology is applied to prevention and treatment of the soft rot of the kiwi fruit for the first time, and the problems that traditional disease-resistant breeding is long in period, resistance is prone to loss, and the disease outbreak risk is large are solved.

The utility model discloses a viscous damper installation model instrument. The installation model instrument comprises a main rod piece and supporting leg assemblies, the supporting leg assemblies are arranged at the two ends of the main rod piece, the main rod piece comprises a left fixing rod, an adjusting rod and a right fixing rod, axial threaded holes are formed in the inner end of the left fixing rod and the inner end of the right fixing rod respectively, and the adjusting rod is located between the left fixing rod and the right fixing rod. The adjusting rod is in threaded connection with the threaded holes of the left fixing rod and the right fixing rod respectively; supporting leg assemblies are arranged at the bottoms of the outer ends of the left fixing rod and the right fixing rod correspondingly, each supporting leg assembly comprises two inverted-V-shaped supporting rods and an adjusting base, and the adjusting bases are vertically arranged at the bottoms of the supporting rods. According to the viscous damper installation model instrument, the viscous damper is accurately positioned through the viscous damper installation model instrument, then positioning and welding of the lug seat are carried out, flaw detection of a lug seat weld joint and anti-corrosion treatment are carried out, and then the viscous damper is installed, so that the problems that the viscous damper is repeatedly disassembled and assembled due to the fact that the lug seat welding is unqualified, and the viscous damper is damaged are solved.

The invention provides a method for detecting distribution of reinforcing steel bars in concrete, which comprises the following steps of: 1, arranging a plurality of detection points on the surface of the concrete to be detected, and acquiring electromagnetic signal data of the surface of the concrete at each detection point through electromagnetic signal acquisition equipment; 2, calculating electromagnetic field distribution in the concrete at each detection point by using an electromagnetic field inversion algorithm according to the collected electromagnetic signal data; 3, according to the electromagnetic field distribution at each detection point, calculating the position and the trend of the reinforcing steel bar in the concrete by using an electromagnetic induction principle; according to the method, non-destructive detection is adopted, no damage is caused to the concrete structure, the problem that traditional detection can cause damage to the concrete structure is solved, the integrity of the concrete structure is guaranteed, and subsequent repair work and cost increase caused by damage detection are avoided.

The present invention discloses a guidewire catheter and an endoscope, and relates to the technical field of medical devices. The guidewire catheter comprises: a tube body and at least two light-emitting devices. A guide hole is provided through the tube body, and the guide hole is used to pass a guidewire. The light emitting direction of the light-emitting device is the same as the axial direction of the guide hole, and at least two light-emitting devices are evenly arranged on the end face of the tube body. The light-emitting device is used to emit light to a target object and form a light spot on the target object to define a target area. The operator can judge whether the guidewire catheter is aligned with the nipple through the above-mentioned target area, and then can quickly and accurately perform the "nipple intubation" operation. The guidewire catheter provided in the embodiment of the present application can assist the operator in quickly and accurately performing the "nipple intubation" operation, reducing the operator's operating difficulty.

The invention discloses a cable laying and burying construction method for a seabed reef section, and the method comprises the following steps: 1, recovering a burying machine: when a cable is laid and buried to the outer edge of the seabed reef section, throwing a positioning mooring ship by a workboat to open an anchor in a splayed manner so as to fix a ship position, and recovering the burying machine; step 2, mounting a joint sleeve; 3, laying a cable on the seabed reef section; step 4, paving the concrete interlocking row; and step 5, diving inspection: the diver enters the water for inspection, after confirming that the diver passes through the reef area, putting the burying machine again, withdrawing the ship stabilizing anchor, and continuing to carry out normal laying and burying construction along the advancing direction of the route. According to the invention, a throwing laying construction mode of joint sleeve protection is adopted for the submarine cable, the problem that the submarine cable is damaged or damaged due to long-term scouring of seabed seawater is solved, particularly, the joint sleeve is firmly pressed and fixed on the seabed surface by using the concrete interlocking row, the submarine cable cannot be pulled due to the action of the seawater, and the submarine cable is prevented from being damaged. Therefore, the service life of the submarine cable is prolonged.

The utility model discloses a rack hoisting protection tool which comprises a first protection assembly, a second protection assembly, a rack and a steel wire rope. The second protection assembly comprises a fixed plate and a movable plate; the fixing plate is connected to the rack and abuts against one side of the rack. The movable plate is arranged on the rack and abuts against the other side of the rack. The fixed plate is slidably connected with the movable plate; the steel wire rope bypasses the fixed plate and the movable plate and is connected with the hoisting equipment, and the hoisting equipment can hoist the rack through the steel wire rope; the first protection assembly is connected with the rack, and the steel wire rope abuts against the first protection assembly. The problem that in the prior art, in the hoisting process of the rack, a machined face is damaged is solved, the machined face of the rack is protected in the hoisting process, and the machined face is prevented from being damaged.

The invention provides a safety protection structure of a flywheel energy storage unit, and belongs to the technical field of testing of flywheel energy storage units. The flywheel energy storage unit safety protection structure comprises a protection stand column, a fixing structure used for being fixed to the ground or a platform is arranged at the bottom of the protection stand column, and the protection stand column comprises at least one pair of stress side faces which are arranged at an included angle and used for bearing impact of fragments. Wherein the front side of a vertical edge formed by intersection of a pair of stress side surfaces is a flywheel arrangement area used for arranging a flywheel energy storage unit, and the rear side, back to the vertical edge, of the protection stand column is provided with a test area which can be completely shielded by the protection stand column so that a tester can operate the test area. In the testing process, when the flywheel is accidentally disintegrated, generated fragments can directly hit the stress side face which is arranged in an included angle mode, the fragments and the stress side face are not in 90-degree front contact but have a certain inclination angle, and therefore the fragments can change the direction to fly to the side portion and do not rebound to the flywheel energy storage unit any more. And the damage to the flywheel energy storage unit can be reduced.

The application discloses a small-opening-face vertical digging shovel and a use method thereof. The device comprises a mounting piece, a horizontal turning mechanism arranged on the mounting piece, and a shovel body arranged below the horizontal turning mechanism. The mounting piece comprises a connecting plate, and a connecting hole is arranged on the connecting plate. The horizontal turning mechanism comprises a mounting seat at the bottom end of the connecting plate, a hydraulic motor on the mounting seat, and a rotating base arranged at the output end of the hydraulic motor. The shovel body comprises a top plate, an arc-shaped guard plate arranged on the top plate, a vertical soil cutting plate arranged at one end of the top plate, a soil clamping plate arranged at the other end, a side plate arranged on the soil clamping plate, and a hydraulic oil cylinder arranged between the soil clamping plate and the top plate. The vertical soil cutting and vertical soil taking are realized. The length, width and height dimensions of the excavated foundation pit are ensured to be consistent with the rectangular foundation, the side wall of the foundation pit directly serves as a foundation pouring formwork, and the foundation construction does not need to be supported and backfilled.

The utility model discloses a vegetable planting and aquaculture symbiotic pool, belongs to the field of agricultural production, and relates to the technical field of vegetable planting and aquaculture. A waterproof mulching film tightly attached to the surface of the pool is laid in the pool body, and the edge of the waterproof mulching film is fixedly connected with the edge of the pool body. A plurality of movable floating plates are arranged in the pool body, and the adjacent floating plates are detachably connected; and a detachable vegetable planting basket is arranged on the floating plate. Vegetables can be planted on the water pool, aquaculture can be carried out in the water pool, direct contact between water and soil of the land is isolated through the waterproof mulching film, the soil of the land can be in a dormancy period, the soil fertility of the land and the soil environment of the land can be restored, and the soil property of the land is not damaged; and the sewage generated by aquaculture cannot pollute the soil environment of the land. The problem that in the prior art, a pond destroys and pollutes the land is solved.

The invention relates to a method for preparing a benzyl carboxylic acid compound by taking carbon dioxide as a raw material. The method comprises the following steps: synthesizing benzyl alcohol into a pinacol borate compound in one step at room temperature, and then adding the pinacol borate compound, electrolyte and alkali into a solvent to obtain a mixed solution; and introducing carbon dioxide into the mixed solution, and electrifying to electrolyze the mixed solution to obtain the benzyl carboxylic acid compound. The benzyl carboxylic acid compound is constructed through a simple, convenient, efficient and green method, carbon dioxide serves as a reaction carbon source, the problem of carbon dioxide emission is well solved, and the method is a thought of carbon neutralization; the gram-level reaction can be realized through electrolysis at room temperature, the yield is high, and high efficiency is embodied; the reaction is economical and environment-friendly, and metal catalysts, ligands and high-temperature and high-pressure conditions are not needed. The method has the advantages of convenient operation, mild reaction conditions, simple and easily available raw materials, and huge potential large-scale application value.

The device comprises an outer wall inner side pre-embedded screw rod which is in a slender rod shape, one end of the outer wall inner side pre-embedded screw rod extends out of an outer wall structure wall body, the middle of the outer wall inner side pre-embedded screw rod is fixedly connected with a reinforcing mesh embedded in the outer wall structure wall body, and the other end of the outer wall inner side pre-embedded screw rod is hinged to a foldable built-in internal thread pre-embedded part; the foldable built-in internal-thread embedded part is integrally columnar and is provided with an embedded part main body with internal threads, a limiting structure and a locking device, and the foldable built-in internal-thread embedded part penetrates through an external heat preservation plate to be connected with a round fixing piece with a nut and an external-thread screw assembly in a screwed mode in the unfolded state. The limiting structure is arranged at the hinged position of the embedded part body and the embedded screw on the inner side of the outer wall and limits and fixes the embedded part body in the unfolded state. The water stop ring is annular and is tightly arranged on the portion, between the reinforcing mesh and the foldable built-in internal thread embedded part, of the outer wall inner side embedded screw in a sleeving mode. The problems that a fixing piece causes water seepage of a wall body, a formwork cannot be reused, and a heat preservation plate falls off are solved.

The utility model discloses a pull-out base plate for jump insertion type H-shaped steel, which comprises a metal plate, an H-shaped slotted hole matched with the H-shaped steel is arranged on the metal plate in the thickness direction in a penetrating manner, and at least two lifting lugs are arranged on the metal plate. According to the H-shaped steel pulling-out device, the H-shaped steel pulling-out base plate serves as a counter-force support of the H-shaped steel pulling-out device, the pulling-out difficulty of H-shaped steel is lowered, the safety and recovery efficiency of H-shaped steel pulling-out construction are improved, and the occurrence probability of safety accidents is lowered.

The utility model relates to a secondary beam welding auxiliary device which comprises a supporting beam (1), one end of the supporting beam (1) is provided with a first connecting structure, the other end of the supporting beam (1) is provided with a supporting structure, the supporting structure is connected with a reinforcing structure, and the reinforcing structure is connected with a second connecting structure. And the first connecting structure and the second connecting structure are respectively contacted with the secondary beam (2). The device is provided with the supporting structure, the length of the device can be adjusted, and stable supporting of the secondary beam is achieved; the situation that the device is difficult to take out due to the fact that the two sides of the secondary beam contract inwards after welding can be effectively avoided; and the device is provided with a reinforcing structure, so that the structural stability of the device is effectively improved. The device is low in manufacturing cost, can be recycled, is convenient to use, is not liable to damage a product, and can meet the size precision requirement of the product after the secondary beam is welded.