70 results about "Accessory structure" patented technology

The invention discloses a deformable wing with the characteristics of large unfolding-folding ratio and high bearing capacity. The deformable wing comprises a bearing structure, a driving mechanism, a wing surface dimensional structure and an accessory structure, the bearing structure comprises a plurality of groups of telescopic mechanisms, wing ribs and corner boxes; the accessory structure comprises a mounting plate, and the mounting plate is connected with the machine body; each group of telescopic mechanisms comprises a plurality of stages of telescopic rods which are arranged along the chord length direction and are fixed on the mounting plate; the wing ribs are arranged in the wingspan direction and are connected with the multi-stage telescopic rods through the angle boxes to form a wing framework; the driving mechanism penetrates through the hollow parts of the wing ribs, and two ends of the driving mechanism are respectively connected with the mounting plate and the wing rib on the outermost side of the wing; the wing skeleton is externally coated with the wing surface dimensional structure to form a wing shape.

The invention discloses a collision-free laying method for newly-added pipelines of a multi-layer pipe gallery, and belongs to the technical field of municipal engineering and pipeline laying. By means of the method, the technical problem that in the complex and dense multi-layer pipe gallery environment, when a pipeline is newly added, the pipeline is likely to collide with an existing pipeline or an accessory structure is solved. According to the technical scheme, the method comprises the steps that pipe gallery internal point cloud data are collected, and a first three-dimensional digital model is constructed; new pipeline starting and stopping positions are set; an automatic path planning algorithm is adopted to calculate a laying path meeting the requirements that the minimum distance between the outer surface of the pipeline and the existing structure is 10-30 cm, and the minimum distance between the working envelope surface of laying equipment and the existing structure is 15-50 cm; adding the path into the model to generate a second three-dimensional digital model; and finally guiding the equipment to implement installation. The method is mainly used for safe and efficient laying of pipelines in updating and expansion of urban underground pipe galleries.

The invention discloses a construction method for integrally lifting and then separately unloading and lifting a large-span split type steel corridor, which comprises the following steps of: overlapping and combining the lower layer and the upper layer of the split type steel corridor through temporary connecting pieces to form an integral lifting unit, and completing ground integrated installation of a preset accessory structure; a lifting device is arranged at the upper part of the design mounting position and is connected with the integral lifting unit; the whole lifting unit is synchronously lifted to the butt joint position of the lower-layer corridor, and butt joint fixing of the lower-layer corridor and the tower structure is completed; the temporary connecting pieces are dismantled for split unloading, so that the load of the lower-layer corridor is transferred to the tower structure; the upper-layer corridor is independently and synchronously lifted to the designed butt joint position of the upper-layer corridor, and butt joint and fixing of the upper-layer corridor and the tower structure are completed; and the lifting device and other temporary measures are dismantled, and construction of the steel corridor is completed. The construction technology of'split stacking and integral lifting + split unloading and re-lifting 'is adopted, and comprehensive optimization of construction of the large-span split steel corridor in multiple aspects of safety, quality and the like is achieved.

The present invention discloses a special-shaped steel structure welding device, which relates to the technical field of steel structure welding. It comprises a frame, a shift plate is provided at the edge of one side of the frame, a conduit is fixedly connected to the upper end of the shift plate, and a pad is provided at the middle of one side of the frame. Through the provided shift plate accessory structure, it can cooperate with the conduit accessory and can adjust the angle in a wide range, thereby meeting the needs of different welding angles, improving welding efficiency and quality, and at the same time, it can adapt to steel surfaces of different shapes and sizes, ensuring positioning accuracy and stability. Through the provided pad accessory structure, it can be adjusted as needed when the connecting plate is flipped, so that the steel parts used for welding can meet the required welding angles, thereby reducing manual operation and equipment debugging time, reducing erroneous welding, and improving production efficiency.

The invention relates to the technical field of bridge construction, in particular to a movable formwork bottom formwork elevation design method, which comprises the following steps of: performing a pre-pressing test on an initial movable formwork manufactured on the basis of a designed beam bottom elevation to obtain a main beam deflection value and an inelastic deformation amount of the initial movable formwork; the concrete box girder anti-arch value of the initial movable formwork is determined; the bottom formwork construction pre-camber of the movable formwork is obtained based on the main beam deflection value, the main beam non-elastic deformation amount and the concrete box beam anti-camber value; and the bottom formwork elevation of the movable formwork is calculated based on the bottom formwork construction pre-camber and the designed beam bottom elevation. The method comprises the following steps: performing simulated load pressurization on the movable formwork through a pre-pressing test, analyzing and verifying elastic deformation and non-elastic deformation of a main beam frame of the movable formwork and an accessory structure thereof by simulating a loading process of the movable formwork, and guiding a pre-camber value of a formwork and a concrete layered pouring sequence in the construction of the movable formwork based on a deformation rule of the main beam frame and the accessory structure of the movable formwork. A safe movable formwork bottom formwork elevation is designed, and the safety of later construction of the movable formwork is ensured.

The application relates to a cantilever structure installed on a public building and a hoisting method thereof, and belongs to the technical field of public building reconstruction construction. The structure comprises edge truss units, installation cables and shape-finding cables. The edge truss units are provided in plurality, the edge truss units are connected in a head-to-tail mode to form a closed loop, the edge truss units are connected with the installation cables respectively, the edge truss units are connected with the shape-finding cables respectively, the edge truss units are provided with fixing members respectively, the fixing members are used for realizing fixed connection between the edge truss units and the public building, the installation cables are used for enabling the closed loop formed by the edge truss units to have certain rigidity, and the shape-finding cables are used for shape finding of the closed loop formed by the edge truss units. The application has the effect of increasing a large-scale auxiliary structure on the original public building.

This application discloses a reverse construction process for cast-in-place overpass pile and column integrated casting, belonging to the technical field of overpass construction. It includes the following steps: S1, road maintenance; S2, integrated pile and column casting; S3, abutment and cap beam construction; S4, box girder casting using the ground formwork method; S5, ancillary structure construction; S6, earthwork excavation and pier finishing; S7, tie beam construction. This application, by adopting a reverse construction process of "maintaining road access first, then constructing the structure, and finally excavating," overturns the traditional forward construction logic, ensuring uninterrupted access to existing roads and eliminating the need for detours during construction, significantly reducing social conflicts. Integrated pile and column casting creates a seamless, integral structure between the pile foundation and pier, improving structural integrity and load-bearing capacity. The ground formwork method for casting box girders eliminates the need for full-span scaffolding, avoiding the safety risks of high-scaffolding construction. Simultaneous layered earthwork excavation and pier finishing avoids high-altitude scaffolding work, significantly reducing construction safety risks.

The present application belongs to the technical field of automobile accessory structure, and specifically discloses a snow load electric latch and an automobile. The snow load electric latch comprises a base plate, a lock tongue pivotally connected to the base plate, a locking member, and a flap. The flap falls into a snow load clamping position on the locking member after the locking member is unlocked, so as to ensure that the locking clamping block of the locking member is separated from the lock tongue, facilitate the unlocking rotation of the lock tongue, ensure that the electric latch can be normally unlocked, and when the half-lock clamping position of the lock tongue is in a reset movement state and passes the locking clamping block, the lifting insertion block on the lock tongue uses a lifting inclined surface to pry the pressing end, so as to pry the limiting end of the flap, so that the limiting end is separated from the snow load blocking block. At this time, the locking member can be pressed towards the lock tongue under the driving of a second reset device, so as to be ready for locking. After the user unlocks, the electric latch can always remain in an unlocked state, so as to ensure that the tail door can be normally opened, prevent the electric latch and the tail door support rod from being in a situation of competing with each other, protect the tail door or the electric latch, reduce the number of maintenance and maintenance costs, and improve the service life.

The utility model provides an underground excavation subway station intersection structure which comprises a main station channel and an accessory structure channel, the main station channel comprises a main station upper step, a main station middle step and a main station lower step, and a first supporting assembly is arranged on the main station channel. The auxiliary structure channel is communicated with the main station channel, the auxiliary structure channel comprises an auxiliary structure channel upper step and an auxiliary structure channel lower step, a second supporting assembly is arranged at the joint of the main station channel and the auxiliary structure channel, and an arch wall secondary lining is arranged on the inner side of the auxiliary structure channel. According to the underground excavation subway station intersection structure, due to the arrangement of the first supporting assembly and the second supporting assembly, frequent supporting modification and reconstruction in a traditional method are reduced, material cost is saved, labor and management cost is reduced, economic benefits are improved, meanwhile, the situation that the supporting structure is unstable due to frequent supporting disassembly and assembly is avoided, and the construction efficiency is improved. And the safety during construction is improved.

The utility model belongs to the field of concrete pouring molds, and particularly relates to an assembly type bridge deck system prefabricating mold for a high-speed railway. Comprising a bottom formwork, a side formwork, a side wall outer formwork, a side wall inner formwork, a vertical wall first formwork, a vertical wall second formwork, a protective wall inner formwork and a protective wall outer formwork. The side wall outer formwork and the side wall inner formwork are connected between the two side formworks to define a side wall formwork cavity. The first vertical wall formwork and the second vertical wall formwork are connected between the two side formworks to define a vertical wall formwork cavity. The protection wall inner formwork and the protection wall outer formwork are connected between the two side formworks to define a protection wall formwork cavity. The bottom formwork is connected between the two side formworks to seal the bottoms of the side wall formwork cavity, the vertical wall formwork cavity and the protective wall formwork cavity, and the bottom formwork, the side wall inner formwork, the first vertical wall formwork, the second vertical wall formwork and the protective wall inner formwork are arranged at intervals to form a bottom plate formwork cavity. The problems that bridge deck accessory structures such as protective walls, vertical walls and side walls of a traditional bridge deck system are multiple in installation procedure and large in number of used formworks are effectively solved.

The invention relates to a construction method for dismantling and newly building a continuous beam. Comprising the steps that accessory structures of an existing beam body are dismantled; a newly-built support is arranged at the 0 # block position of the existing beam body in the longitudinal bridge direction, and the newly-built support is rigidly connected to the bottom of the existing beam body; the existing support is flexibly connected with the bottom of the existing beam body; an anti-collision guardrail and a flange plate are dismantled under the bridge through dismantling equipment; the existing beam body is dismantled under the bridge through dismantling equipment, and dismantling is conducted from the two ends of the existing beam body to the 0 # block at the same time till the existing beam body is completely dismantled; and a newly-built bridge is constructed on the existing bridge piers and the existing supports. The newly-built support is rigidly connected to the lower portion of the 0 # block structure and used for reinforcing the existing beam body, and the existing support is flexibly connected with the existing beam body, so that the existing beam body can slightly move up and down in the dismantling process, balance dismantling of the two ends of the existing beam body can be achieved, the existing beam body is dismantled through an in-situ dismantling method under a bridge, and the construction efficiency is improved. And the difficulty of high-altitude hoisting operation is avoided.

The invention relates to the technical field of construction hanging baskets, in particular to a rhombic hanging basket for rapid construction of a cable stiffening bridge screen integrated continuous rigid frame bridge. Comprising a main truss system, a cross beam bottom support system, a walking system, an anchoring system, a guide beam suspension system, a formwork system and an accessory structure. The main truss system is composed of two rhombic trusses which are connected in a parallel connection mode. The cross beam bottom support system comprises a front upper cross beam, a front lower cross beam, a rear lower cross beam and a bottom longitudinal beam which are connected through a sling suspender; the walking system comprises reverse hook wheels, a track and a hydraulic driving device; the anchoring system anchors the hanging basket on the beam body by using a rear anchor beam and an anchoring rib; the guide beam suspension system is connected with the guide beam and the cross beam through a suspender; the formwork system is composed of an outer side formwork, a bottom formwork and an inner formwork. The device integrates light weight, rapidness and precision, and the problems of hanging basket walking, formwork supporting, concrete pouring and vibrating in large-size and large-height continuous rigid frame bridge cantilever pouring are solved. The method is mainly applied to rapid construction of the diamond hanging basket for the continuous rigid frame bridge.

The application discloses a mixed feed additive production feeding lifting device, and relates to the technical field of raw material feeding. The device comprises a cushion frame, the upper end surface of the cushion frame is fixed with a positioning seat, the upper end of the positioning seat is rotationally connected with a second belt, and the other end of the second belt is rotationally connected with a third belt. Through the positioning seat accessory structure, the user can adjust the rotation speed and deflection angle of the leakage disc according to needs, so that the added additives can be controlled to move to the edge for discharging, thereby avoiding material residues and the accumulation caused by traditional single-point feeding. Through the second belt accessory structure, the second belt accessory structure can cooperate with the third belt accessory structure to scrape off the additives adhered to the wall, thereby reducing the waste of additives. On the basis of the positioning seat accessory structure, the discharging effect can be improved, and the discharging efficiency can be further improved.

The application discloses a combined scaffold based on an attached climbing frame and a construction method thereof, and utilizes a switching support to be combined with the attached climbing frame, when the climbing frame cannot match the change of the outer contour of the structure when being lifted to the roof of the attached structure layer, the combined scaffold based on the attached climbing frame plays an important role in switching the bearing, can perfectly fit the change of the outer contour of the roof structure and solve the problem that the climbing frame is limited in climbing, the attached climbing frame can be one-time climbed to the top, the operation platform of the attached climbing frame can cover the whole roof attached structure layer construction, and the attached structure layer does not need to be re-set up a cantilever frame with great effort. The application solves the problem that the change of the structure of the roof attached layer of the super high-rise main structure leads to the problem that the re-set cantilever frame mode or the split lifting mode of the special design of the climbing frame is used to meet the roof layer and the attached construction, thereby prolonging the construction period and increasing the construction cost.

The present application relates to the technical field of aircraft accessory structure, and particularly relates to a handle boost structure of a boarding door of a civil aircraft, which comprises a boost system composed of an operating handle, a lifting handle, a first rocker arm, a connecting rod, a sliding block, a supporting rod, a second rocker arm and a force amplification rod, the operating handle is rotationally connected with the lifting handle and synchronously drives the first rocker arm, the sliding block is driven to slide along the lifting handle in the axial direction through the connecting rod, and then power is fed back to the lifting handle through the supporting rod, the second rocker arm and the force amplification rod, the stable wrist rotation torque is converted into efficient lifting torque, the boost effect is significantly improved, and the operation burden of the cabin crew is reduced, the flexible adjustment of the amplification coefficient can be realized by replacing the supporting rods with different lengths, the overall component is designed with a weight reduction hole, the stringent lightweight requirement of aviation is met, and the handle boost structure has extremely strong engineering practical value.

This invention relates to the field of engineering construction technology, specifically a construction method for a tunnel on a high slope. The method includes: S01, excavating the top of the tunnel and providing slope support; S02, excavating the right side of the tunnel and providing temporary support; S03, excavating the left side of the tunnel and providing initial support, pre-anchor support, and temporary steel frame support; S04, pouring the left tunnel structure and bottom slab; S05, constructing temporary steel frame support and dismantling the existing temporary steel frame support; S06, constructing the right tunnel structure; S07, constructing ancillary structures such as drainage ditches, cable trenches, and road surfaces within the tunnel; S08, backfilling and counter-pressure at the top of the tunnel, constructing a top seepage-proof layer, drainage ditches, and landscaping. This invention reduces excavation volume, minimizes damage to the natural environment of the mountain, avoids slope deformation and instability caused by prolonged exposure, and ensures the safe and smooth progress of the project. It also avoids structural damage to the tunnel due to water accumulation and insufficient backfill compaction.

The jacking and pulling combined building lifting construction method comprises the following steps that firstly, a to-be-lifted building is disconnected at a preset position; 2, bracket holes are formed respectively, and lifting devices are mounted on lifting parts between the basement and the upper accessory structure respectively; 3, a jack is arranged on a steel corbel at the top of the lifting device supporting steel column; 4, jacks of all the lifting devices are connected to an oil pump pressure system; 5, an instruction is sent to an oil pump pressure system through the computer control system, so that the steel corbels located in the corbel holes are tightly attached to the upper ring beam and the beam bottom structural face; 6, the jacks of all the lifting parts are controlled to conduct lifting work, and lifting is stopped after preset displacement is achieved; and 7, construction of the wall column of the lifting section is conducted, and after construction is completed, all the lifting devices are removed. The technical problems that an existing lifting construction method is complex in procedure and long in construction period are solved, precision is high, accurate positioning can be achieved, and the number of needed lifting devices is small.

1. The name of the design product: helmet goggles adjusting base. 2. The use of the design product: accessory structure for helmet. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model provides a simple and easy deviation rectification building shock insulation rubber support, is used for being installed between the upper support pier and lower support pier of building support pier, include: rubber main part department, by multilayer rubber and steel sheet interlaced superposition is high temperature vulcanization and is formed, lower flange connecting portion is used for being connected with lower support pier, including the upper side of lower support pier's lower connecting plate, the lower embedded plate of pouring in lower support pier inside and the lower connecting bolt of connecting lower connecting plate and lower support pier, upper flange connecting portion is used for being connected with upper support pier, including the lower side of upper support pier's upper connecting plate, the upper embedded plate of pouring in upper support pier inside and the upper connecting bolt of connecting upper connecting plate and upper support pier. The utility model keeps the traditional support anti-seismic performance and the basic structure unchanged, realizes the correction ability of construction error and long-term deformation, does not increase the subsidiary structure and does not change the structure of traditional building shock insulation support, can guarantee construction accuracy and deviation rectification effect, also does not increase cost expenditure.

The utility model provides a hinge with a wire passing function on wearable equipment, which comprises a first connecting frame and a second connecting frame, and the first connecting frame and the second connecting frame are rotatably connected around an axis, so that the first connecting frame and the second connecting frame can rotate around the axis relative to each other; the hinge is further provided with a wire passing cylinder, the wire passing cylinder is movably connected with the first connecting frame and the second connecting frame, can rotate around the axis and rotate relative to the first connecting frame and the second connecting frame, and the wire passing cylinder comprises two wire passing grooves formed in the rotating direction. The maximum rotation angle of the wire passing cylinder is smaller than the maximum relative rotation angle of the first connecting frame and the second connecting frame and the central angle between the two wire passing grooves. According to the utility model, the sleeve with the wire passing groove can rotate or not rotate when the hinge is opened at different angles, so that the maximum rotating angle of the wire passing cylinder can be adjusted according to an actual application object, and the wire passing groove can be shielded in a targeted manner without completely depending on the thickness of an accessory structure.

The utility model relates to a feeding machine, a laser cutting machine and a laser cutting production line. The feeder comprises a bracket, a supporting platform, a lifting mechanism and a transverse moving mechanism. The bracket is arranged on the supporting platform; the lifting mechanism is connected with the supporting platform and used for lifting the supporting platform. The transverse moving mechanism is arranged on the supporting platform and is in driving connection with the bracket so that the bracket can move in the feeding direction. A user places materials to be machined on the bracket, then the materials move in the height direction and the feeding direction through the lifting mechanism and the transverse moving mechanism, the materials are made to avoid moving rails of the machine tool sliding base and accessory structures of the machine tool sliding base, interference and collision are avoided, and finally the materials are placed on the machine tool sliding base. According to the laser cutting machine and the laser cutting production line provided by the embodiment of the invention, due to the adoption of the feeding machine, the corresponding beneficial effects are achieved.

The utility model discloses a corrugated pipe vacuumizing sealing cover, belongs to the technical field of pipeline accessory structures, and provides a corrugated pipe vacuumizing sealing cover which is easy to operate and convenient to disassemble and comprises a sealing disc, one end of the sealing disc is provided with a lining cylinder, the end of a corrugated pipe is suitable for being sleeved outside the lining cylinder, and the other end of the sealing disc is provided with a connecting end. The connecting end is communicated with the interior of the lining cylinder, the end portion of the connecting end is fixedly connected with a one-way valve, the end face of the sealing disc is further fixedly connected with a deformable pressing sleeve, and the pressing sleeve is coaxial with the lining cylinder and located outside the lining cylinder. By designing the lining cylinder structure capable of being inserted into the corrugated pipe and cooperating with the vacuum pump connected with the one-way valve, vacuumizing operation can be rapidly completed, and the lining cylinder is convenient to disassemble and can be recycled repeatedly; the sealing ring structure is arranged on the outer side of the neck bush, the pressing sleeve is used for reinforcement, air tightness and connection stability are both considered, and the interior of the corrugated pipe can be kept in a stable vacuum state for a long time.

The application relates to a construction method for in-situ expansion of a multi-arch tunnel, and belongs to the technical field of tunnel construction. The method comprises the following steps: according to the section contour of an existing multi-arch tunnel, a section contour of an in-situ expansion tunnel is designed; a part of the existing tunnel on one side exceeding the section contour of the in-situ expansion tunnel is treated by grouting backfilling and reinforcement; a part of rock mass on the other side of the arch top is excavated, and a part of the lining structure of the existing tunnel on the side is removed; a part of rock mass of the arch part is excavated, and a part of the lining structure of the existing tunnel on one side is removed to make the primary support closed into a ring; the secondary lining, the arch wall and other structures of the remaining part of the existing tunnel are removed; the surface and the inverted arch structure of the existing tunnel are removed by blasting operation, the inverted arch primary support is constructed, the secondary lining is constructed, and other auxiliary structures are constructed. The existing tunnel is utilized, and the excavation area of the expansion project is reduced; meanwhile, the spoil produced by excavation and the concrete, steel frame and other materials of the existing tunnel which are replaced are reused, and the construction concept of green construction is embodied.

The utility model relates to the technical field of electric tool connection's tool accessory structure, specifically a kind of tool accessory, including accessory shell, sliding joint cover, it is characterized in that the end of the accessory shell is equipped with the joint cover accommodating groove of upper end opening and side surface opening, the end of the accessory shell is equipped with the angle positioning joint part integrally connected with accessory shell, the inner wall of the sliding joint cover is equipped with insertion part, the accessory shell is equipped with joint cover limiting portion, after the insertion part of the sliding joint cover inserts joint cover accommodating groove, it is limited in joint cover accommodating groove by the joint cover limiting portion connected with accessory shell, with simple structure, high assembling efficiency, easy to disassemble, the advantages such as realizing the quick connection and angle positioning of tool accessory.

The application relates to a super-high connected steel structure cooperative auxiliary structure and a decoration integrated lifting method, which comprises the following steps: establishing an accurate three-dimensional finite element model, carrying out detailed finite element numerical simulation on each working condition of a truss unit, obtaining accurate deformation values of a bottom truss, carrying out real-time deformation control, installing a jig frame and a main truss, installing a steel bar truss floor slab, installing a ceiling at the bottom of a corridor and installing internal electromechanical pipelines in the ceiling, pre-lifting and setting temporary supports with adjustable elevations, formal lifting, post-supplemental rod connection and welding seam flaw detection, splicing of floor slab closing parts, steel bar binding and pouring of a concrete floor slab of the corridor, installation of a truss top hoisting component, installation of a side vertical curtain wall and construction of a light well and a top garden. The application realizes overall cooperative lifting and efficient construction of a steel corridor and auxiliary electromechanical pipelines and decoration structures, improves construction efficiency and reduces construction risks.

The application belongs to the field of ship design, and particularly relates to a nuclear power icebreaker safety shell energy-absorbing buffer protection structure applied to ice resistance of the nuclear power icebreaker. The structure comprises three regions, namely, an impact resistance region, a transition region and a reactor cabin. The impact resistance region is connected with the transition region, the transition region is connected with the reactor cabin, and the transition region is located between the impact resistance region and the reactor cabin. The application has the following beneficial effects: 1) the safety shell is better protected by setting an additional isolation cabin and its accessory structure outside the safety shell; 2) the stress distribution of the impact load transmission to the ship middle component is improved by setting a supporting longitudinal girder, so that the position of the high stress area is changed positively; and 3) the application has the characteristics that the stress is obviously weaker than that of the impact resistance region and the reactor cabin component, and a large number of openings are designed, so that when the ship is impacted by an extreme event, a clear buffer zone and a fracture interface are formed in the region, and the integrity of the reactor cabin safety shell is effectively protected.

The utility model discloses a kind of hoop type fender for steel pipe pile, the side wall of fender is equipped with a plurality of first mounting hole along vertical direction;The two sides of first semicircle hoop are equipped with butt joint plate, butt joint plate is equipped with butt joint hole, second semicircle hoop is same with the structure of first semicircle hoop, bolt passes through the butt joint hole of first semicircle hoop and second semicircle hoop and is fixed for holding steel pipe pile;Mounting plate is set on first semicircle hoop, it is equipped with the second mounting hole matched with first mounting hole, bolt passes through first mounting hole and second mounting hole and is fixed for connecting fender.The device is connected into whole by setting mounting plate and fender, first semicircle hoop and second semicircle hoop hold tightly on steel pipe pile, fender contacts with marine wharf accessory structure, provides lateral anti-collision buffer;When water level changes, first semicircle hoop and second semicircle hoop can be disassembled and moved, drive fender to move to different position, adapt to the change of water level.

The invention discloses a feeding lifting device for mixed feed additive production, and relates to the technical field of raw material feeding. Comprising a cushion frame, a positioning seat is fixed on the upper end surface of the cushion frame, the upper end of the positioning seat is rotatably connected with a second sleeve belt, and the upper end of the positioning seat is rotatably connected with a third sleeve belt at the other end of the second sleeve belt. Through the arrangement of the positioning seat accessory structure, a user can adjust the rotating speed and the deflection angle of the leakage disc according to needs, so that fed additives can be controlled to be close to the edge to be discharged, material residues can be avoided, and the accumulation problem caused by traditional single-point feeding can also be avoided; the positioning seat accessory structure can be matched with the third sleeve accessory structure to scrape the additive adhering to the wall, waste of the additive is reduced, and on the basis of the positioning seat accessory structure, the material removing effect can be improved, and the discharging efficiency can be further improved.

The application provides an interface pre-buried box type protection waterproof structure and a construction method, which comprises: a waterproof layer arranged outside a main body structure and an auxiliary structure, wherein the waterproof layer is directly in contact with a soil layer; two edge positions of a splicing joint of the main body structure and the auxiliary structure are provided with water stop glue; a box type protection device is embedded on the main body structure, the box type protection device is arranged between the two water stop glues, a first waterproof steel plate is arranged in the box type protection device, concrete is also poured in the box type protection device, one side of the first waterproof steel plate is provided with a second waterproof steel plate arranged in the auxiliary structure, one end of the second waterproof steel plate is arranged in the auxiliary structure, and the other end of the second waterproof steel plate is welded with the first waterproof steel plate. The problems of unstable performance of water stop glue, non-dense grouting filling and repeated grouting unable to realize complete sealing in the prior art are solved.