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100 results about "Lintel" patented technology

A lintel or lintol is a structural horizontal block that spans the space or opening between two vertical supports. It can be a decorative architectural element, or a combined ornamented structural item. It is often found over portals, doors, windows and fireplaces. In the case of windows, the bottom span is instead referred to as a sill, but, unlike a lintel, does not serve to bear a load to ensure the integrity of the wall. Modern day lintels are made using prestressed concrete and are also referred to as beams in beam and block slabs or ribs in rib and block slabs. These prestressed concrete lintels and blocks are components that are packed together and propped to form a suspended floor concrete slab.

Super-large-span SOM plate door opening reinforcing structure

The utility model relates to a reinforcing structure, belongs to the technical field of building construction, and particularly relates to a super-large-span SOM plate door opening reinforcing structure which comprises a square steel tube davit, a concrete layer and a square steel tube lintel. The square steel tube lintel is fixedly connected with the bottom end of the square steel tube davit; the square steel tube door frame columns are fixed with upper-layer concrete and lower-layer concrete of a wall surface where the door opening is located; the SOM plate is fixed between the upper-layer concrete and the lower-layer concrete through the square steel tube lintels and the square steel tube door frame columns; the square steel pipe is adopted to replace a concrete lintel, the construction technology is simple, operation is convenient and fast, the construction period is shortened, and the problems that in an existing large-size door opening reinforcing project, a concrete lintel always needs to be designed and enlarged to meet the stability requirement, so that the technology becomes complex, and the construction period is prolonged are solved.
Owner:CHINA CONSTR EIGHTH ENG BUREAU TECH CONSTR CO LTD

Underground space communication reserved hole wall later-period hole communication construction method

The invention provides an underground space communication reserved hole wall body later-stage hole communication construction method, an existing prefabricated wall body comprises a main body structure area and a reinforcing structure area, and a water stop opening method is arranged on the butt joint face of the existing prefabricated wall body, and the method comprises the steps that firstly, an automatic lock catch water stop system is installed in the reinforcing structure area of the existing prefabricated wall body, and an automatic lock catch water stop system is installed in the reinforcing structure area of the existing prefabricated wall body; a spherical rubber water stop belt is placed in the water stop opening; secondly, a to-be-built basement soil body is excavated, and to-be-built basement floors are sequentially constructed from bottom to top; 3, taking out the wall body of the hole, and arranging a vertical support at the same time; constructing a first reinforcing column on the left side of the hole; the reserved hole wall body and the existing prefabricated wall body are in butt joint and locked; sequentially taking out each wall body unit, additionally arranging a vertical support, and arranging a second reinforcing column; and fourthly, the reinforcing structure area is constructed, the existing basement floor, the existing prefabricated wall and the basement floor to be built are connected, and the lintels, the first reinforcing columns and the second reinforcing columns form a complete communicating hole.
Owner:SHANGHAI CONSTRUCTION GROUP CO LTD +2

Lintel convenient to use

The lintel convenient to use comprises a box body, fixing frames, supporting columns, a mounting frame and clamping pieces, the fixing frames which are different in height and overlapped in tail end are arranged on the four inner walls, the supporting columns are arranged on the fixing frames, deformation of the box body can be prevented, matched screw holes are formed in the overlapped positions and the top of the box body, and the clamping pieces are clamped in the mounting frame. And the mounting frame and the clamping piece are used for replacing a screw hole, used for inserting the fixing piece, in the bottom of the box body, so that the mounting process is simplified.
Owner:TIANMEN TIANSHENG NEW MATERIAL TECH CO LTD

Indoor safety assistant handrail

To provide an indoor handrail capable of assisting the action of an aged person, a handicapped person and an infant in a room and being easily detached by providing a plurality of indoor handrails in the middle of a lintel.SOLUTION: This indoor safety auxiliary handrail is characterized in that a handrail fixing cap bracket for receiving an upper end of a pole and a floor fixing cap bracket for receiving a lower end of the pole are vertically provided between a lintel and a floor and a tatami mat, the pole having a length slightly longer than a height of the lintel is fitted to the lintel cap bracket while being pressed downward, a safety tube of the pole is inserted into upper and lower cap brackets to prevent the pole from coming off from the cap, and the safety tube is removed only by pressing the pole downward when the pole is temporarily removed.SELECTED DRAWING: Figure 7
Owner:森園 利春

Construction method for masonry of clear red brick outer wall

The invention provides a plain red brick outer wall masonry construction method, which belongs to the technical field of construction methods, and comprises the following steps: step 1, preparing plain red brick outer wall masonry construction; 2, the technological process of masonry construction of the clear water red brick outer wall is executed; step 3, executing a core masonry process of masonry construction of the clear red brick outer wall; and 4, lintel construction of plain red brick outer wall masonry construction is executed. The structure stability, appearance coordination and construction safety of the clear water red brick outer wall are improved, material loss is reduced, and the environment-friendly construction requirement is met.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD

A underpinning jacking platform for a lintel

ActiveCN224396120Uefficient connectionRealize lifting and unloadingBuilding repairsArchitectural engineeringJoist
The utility model discloses a kind of for joist pulls out column's underpinning jacking platform, including frame body underpinning platform and jacking platform;Frame body underpinning platform is set to the lower outer periphery of column to be constructed, and by four steel columns fixedly supported on foundation respectively arranged at its corner position;Jacking platform is set to the upper outer periphery of column to be constructed, jacking platform is connected by being anchored with the column to be constructed by multiple along its circumferential uniform setting of planting nail, and the gap between jacking platform and the column to be constructed is filled with grouting material;Four corner positions between the frame body underpinning platform and the jacking platform are respectively provided with underpinning support, and four edges of the frame body underpinning platform and the jacking platform are respectively provided with vertical jack.The utility model guarantees the effective connection of underpinning platform and the upper structure of column to be constructed, realizes the jacking unloading of upper structure of column to be constructed, and effectively reduces the operation risk in jacking unloading construction process.
Owner:SHAANXI ACAD OF ARCHITECTONICS +3

Reinforcing masonry structure lintel crack through profile steel frame joist

The utility model relates to a profile steel frame joist for reinforcing masonry structure lintel cracks. The profile steel frame joist comprises a profile steel frame joist, batten plates, embedded steel bar bolts and angle steel lacing bars. The profile steel frame joist is arranged on the lower portion of the masonry structure lintel crack and fixedly connected with a wall at the same time. The batten plates are tightly attached to the profile steel frame joists and used for connecting the lower portions of the lintels and the profile steel frame joists on the two sides of the wall body; the embedded steel bar bolts are embedded in the lintel and the wall body and are used for connecting the batten plate with the lintel or the wall body; the angle steel lacing bars are used for enhancing the strength of the corners of the profile steel frame joists; after the profile steel frame joists, the batten plates and the like are installed, cement polymerization grouting liquid is poured into the cracks. The profile steel frame joists are adopted to reinforce lintel cracks of the masonry structure, tensile stress generated by pressure grouting reinforcement can be borne, the method is simple in construction, safe and reliable, the ductility of the structure can be improved, and the anti-collapse capacity of the structure can be enhanced.
Owner:BEIJING ZHUFU ARCHITECTURE AFFAIRS CO LTD

Fireproof roller curtain

The subject of the application is a fire-resistant rolling curtain with a flexible casing, intended for closing a communication opening with linear transport elements in the form of rails, conveyor belts, pipelines, cables or other wires extending across the opening and protruding above its base. The fire-resistant rolling curtain with a flexible casing, the upper edge of which is attached to a rotating winding shaft mounted in a housing attached to the lintel of the communication opening to be closed, and the side edges of the casing are slidably placed in fixed, vertical grooved guides with sealing elements, comprising a rigid sealing plate (13), which in the closed state of the curtain adheres to the base (8) of the communication opening (6), across which at least one linear transport element (9a) extends, protruding above its base (8), wherein the sealing plate (13) has at least one open downwards,a transverse recess (20) surrounding a linear transport element (9a) protruding above the substrate (8) of the communication opening (6) and whose transverse outline is adapted to the profile of the linear transport element (9a), characterized in that on the inner, peripheral surface of each of the recesses (20) of the sealing plate (13) a coating of a material swelling under the influence of a temperature increase is formed,
Owner:ASSA ABLOY MERCOR DOORS SP ZOO

Continuous force transfer construction method for embedded supporting steel-concrete lintels at rear opening of masonry wall

The invention discloses a continuous force transmission construction method of an embedded support steel-concrete lintel for a masonry wall rear opening. The continuous force transmission construction method comprises the steps of construction preparation, support processing, measurement positioning, support embedding, removal of other masonry at a lintel opening, lintel steel bar installation, lintel concrete pouring and wall construction rear opening. The formed lintel is a longitudinal linear continuous steel-concrete lintel, the embedded I-shaped steel arranged at intervals is a transverse reinforced steel rib of the lintel, and the embedded I-shaped steel, the continuous steel reinforcement framework and lintel concrete bear force together. Force transmission is continuous and uniform, construction is fast and safe, quality control is easy and convenient, and long-term performance is stable.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD

Lintel adjustable supporting device and using method thereof

The invention provides a lintel adjustable supporting device and a using method thereof.The lintel adjustable supporting device comprises a supporting part and an adjusting part, inclined rods are arranged at the bottoms of the two ends of the supporting part respectively, one end of each inclined rod is rotationally connected with the supporting part, the other end of each inclined rod is rotationally connected with an abutting part, and the adjusting part is arranged between the abutting parts; the distance adjusting device is used for adjusting the distance between the abutting parts. The supporting device has the beneficial effects that the opening lintel is stably supported, the structure is simple, operation is convenient and fast, dismounting and mounting can be fast, and the construction efficiency of the lintel can be effectively improved; the abutting parts abut against the two sides of the hole, so that the whole supporting device is erected on the hole, the lintel is stably supported, and normal passing is not affected; the distance between the abutting parts is adjusted through the adjusting parts, the supporting device can be fixed to holes with different widths, the abutting parts can abut against and be fixed to any height of the holes, and the applicability of the whole supporting device is higher.
Owner:MCC TIANGONG GROUP

Shield door bearing and driving device

The utility model discloses a shield door bearing driving device which comprises a door machine beam and a guide rail, the door machine beam is formed by splicing a lintel beam and a middle beam, supporting feet used for being connected with stand columns are arranged at the two ends of the lintel beam and the two ends of the middle beam, and the guide rail is connected with the side wall of the door machine beam. In the utility model, the door machine beam and the guide rail adopt a splicing structure, the weight of each single body is reduced, the installation is easy, the length of each single body of the door machine beam is reduced to half of the initial length or even less, the section of the guide rail is reduced, and the transportation is convenient.
Owner:NANJING KANGNI ELECTROMECHANICAL ENG CO LTD

profile (lintel 4)

1. Name of the designed product: profile (lintel 4). 2. Use of the designed product: profile for building decoration. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view.
Owner:周应军

Simple angle steel truss bridging support device

The utility model provides a simple angle steel truss beam -like bridge support device relates to the field of building construction technique, including the masonry wall, the surface of masonry wall is equipped with the opening, the surface of masonry wall and be located the opening top is equipped with the embedded hole, the both sides inner wall of opening and be close to top all are equipped with the embedded groove, the inside of opening and embedded groove inserts has the upper angle steel and lower angle steel respectively, the top between upper angle steel and lower angle steel bottom between all equal interval welding has the inlay board. In the utility model, the temporary support setting procedure is saved, the construction process is simplified, the construction preparation workload is reduced, the construction time is shortened, the masonry in angle steel truss is reserved, need not new pouring concrete, reduces concrete, form and other material use, reduces the cost, also fits the green construction concept, avoids the concrete maintenance period, and the construction procedure is more compact, significantly improves the construction progress, helps the project fast advance.
Owner:SHANGHAI CHINA CONSTR ARCHITECTURAL DESIGN INST CO LTD

Method for connecting adjacent basement pits

The application discloses a basement connecting method for adjacent foundation pits, and the adjacent foundation pits are divided by row piles. The basement connecting method comprises the following steps: removing the part of the row pile which is higher than the elevation of the basement roof; connecting a crown beam to the top end of the row pile after the removal; drawing an inverted U-shaped contour line of a connecting opening for connecting two basements on the row pile; first, according to the horizontal line of the inverted U-shaped contour line, horizontally cutting the row pile, and then constructing a lintel at the position of the horizontal cutting; second, according to the two vertical lines of the inverted U-shaped contour line, vertically cutting the row pile at two positions, and then respectively constructing side columns at the positions of the two vertical cuttings, so that the two side columns are connected to the lintel; and removing the part of the row pile which is located within the range surrounded by the lintel and the two side columns, so as to form the connecting opening. Through the basement connecting method, the stability of the connecting opening is improved.
Owner:CHINA CONSTR EIGHTH ENG BUREAU TECH CONSTR CO LTD

Foldable containers and methods for loading cargo into foldable containers

PendingCN122300852ALintelChassis
This application discloses a collapsible container and a method for loading cargo into the collapsible container, including a base frame and end frames. The end frames are located at both ends of the base frame and include corner posts and movable lintels. The corner posts are located on both sides of the base frame along its width and are pivotally connected to the base frame, allowing the end frames to pivotally connect to the base frame between an open position and a folded position folded onto the base frame. The movable lintels include a top crossbeam, top corner pieces, connecting seats, and a rotary locking assembly. The top corner pieces are located at both ends of the top crossbeam and connected to it. The connecting seats are located at both ends of the top crossbeam and connected to the top corner pieces. The rotary locking assembly is movably located on the connecting seats and is detachably connected to the corner posts between a locked position and an unlocked position, allowing the movable lintels to be detachably connected to the corner posts. Because the top corner pieces can be detached along with the movable lintels, extra-long and extra-wide cargo can be loaded.
Owner:NANTONG CIMC-SPECIAL TRANSPORTATION EQUIPMENT MANUFACTURE CO LTD +2

Metal composite plate external sunshade curtain box structure and construction process thereof

ActiveCN119279379BPelmetsArchitectural metalsArchitectural engineering
This invention discloses a metal composite panel external sunshade box structure and its construction process, relating to the field of building metal composite panel curtain wall engineering technology. It includes an aluminum alloy window with a steel lintel at one outer end. The inner cavity of the steel lintel is filled with rock wool. An electric external sunshade system is installed on the top left side of the aluminum alloy window. The other end of the steel lintel is connected to the side wall of an aerated concrete block wall, and a through-wall sleeve is installed through the inner cavity of the aerated concrete block wall. Aluminum foil rock wool is installed on the left outer wall of the aerated concrete block wall. This invention's metal composite panel external sunshade box structure and its construction process solve a series of problems related to the structural strength, installation flatness, wind pressure resistance, external wall insulation performance, fixing points of the sunshade system, and the setting of curtain wall joints at the location of the sunshade box when the distance between the curtain wall panel and the main structure's outer wall is less than or equal to 250mm. It has high practical and economic value.
Owner:SHANGHAI GUANCUN TECH ENG CO LTD

A type of roller shutter door lintel

ActiveCN224452686UForeign matterSuction force
This utility model relates to the field of roller shutter door technology and discloses a roller shutter door lintel, including a roller shutter door lintel body. A set of cleaning mechanisms is symmetrically arranged at the bottom of the roller shutter door lintel body, and a set of auxiliary mechanisms is symmetrically arranged on the surface of the cleaning mechanisms. The cleaning mechanism includes a groove frame, which is fixed to the bottom of the roller shutter door lintel body. This new solution effectively sweeps and cleans both sides of the door curtain entering the roller shutter door lintel body by setting a set of brush assemblies. At the same time, the vacuum pump body provides suction force so that the dust raised after sweeping enters the hollow brush frame through the through holes on the surface of the hollow brush frame. Then, it passes through the connection port, transmission pipe one, vacuum pump body, and transmission pipe two in sequence, and finally enters the collection box for unified collection, improving the cleaning effect and effectively preventing foreign objects and dust attached to the door curtain surface from entering the interior of the roller shutter door lintel body, thus effectively protecting the internal components of the roller shutter door lintel body.
Owner:SHENYANG JINMINGWAN DOORS & WINDOWS CO LTD

Door and window opening lintel construction structure

The utility model relates to the field of building construction, and discloses a door and window opening lintel construction structure which comprises two angle beads, side building blocks and a bottom formwork. The two angle beads are symmetrically arranged at the top of the hole in parallel, and the two ends of each angle bead extend into the wall by a set depth; the bottom formwork is fixed to the bottoms of the angle shafts through screws and serves as a bottom formwork for cast-in-place. A plurality of side building blocks are arranged on the two angle beads through quick-drying mortar and serve as side molds for cast-in-place; a pouring cavity is defined by the wall bodies at the two ends of the angle bead, the side building blocks and the bottom die, and concrete is poured into the pouring cavity to form the lintel. The pouring cavity is defined by the wall body, the side building blocks and the bottom die, after the quick-drying mortar is initially set, concrete can be poured into the pouring cavity to form the lintel, the wall body can be directly built after pouring is completed, waiting for concrete solidification is not needed, the construction progress is not affected, only the bottom die plate needs to be built, and compared with a traditional die erecting procedure, the construction efficiency is greatly improved. The construction efficiency is greatly improved, and the labor intensity is also reduced.
Owner:HUNAN EDUCATION CONSTR GRP CO LTD

A lintel bottom film support device

The utility model belongs to construction support technical field, concretely relates to a beam bottom film support device, the beam bottom film support device includes: the support component of symmetrical setting in the brick wall of building opening both sides, two support top supports are detachably installed in the top of support component, two support inner screws are screw connection in the bottom of support component, and the top end of support inner screw is in contact with the bottom of support top support, and the beam column is transversely arranged between two support top supports. The support component of the application is simple to process, low in cost, strong in adaptability, long in service life, and the splicing structure is convenient and fast in installation, height adjustment and disassembly, simple to maintain, and realizes the quality requirement with low loss and small cost.
Owner:CHINA MCC5 GROUP CORP LTD

Cast-in-place concrete structure formwork construction method

The invention discloses a construction method for a cast-in-place concrete construction formwork. The construction method comprises the steps of preparation before construction, sponge strip pasting, constructional column formwork erecting, cast-in-place belt and lintel erecting and formwork dismantling. Before construction, position precision and structural safety of the component are guaranteed by elastically arranging an acceptance elevation line, hiding acceptance steel bars and cleaning acceptance sundries, slurry leakage and material waste are reduced, and the appearance and durability of the component are improved; the constructional column formwork is reinforced by combining bamboo plywood, a flat square, a through-wall bolt and a steel pipe and is applied to a special-shaped component in cooperation with the 3D printing technology, the rigidity of the formwork is enhanced, formwork expansion is prevented, and precise forming of a complex structure is achieved. A cast-in-place belt and a lintel formwork are filled with screws with water stop rings and micro-expansion cement paste, opposite-pulling reinforcing points are additionally arranged, and the waterproofness and stability are improved; and removing the mold after the concrete strength reaches the standard. Through collaborative optimization of all links, the construction quality controllability is improved, rework and material loss are reduced, the cost is controlled, and the resource utilization rate is increased.
Owner:CHINA NAT CHEM ENG HEAVY MECHANIZED CORP +1

Safe anti-pinch induction type automatic door

The utility model belongs to the technical field of induction type automatic doors, and provides a safe anti-pinch induction type automatic door which comprises a first door body and a second door body, the safe anti-pinch induction type automatic door further comprises lintels and sliding rails, the lintels are arranged at the top of the first door body and the top of the second door body, and the sliding rails are arranged at the bottom of the first door body and the bottom of the second door body. The first door body is provided with an anti-pinch assembly, and the anti-pinch assembly is located on the side close to the second door body. A driving assembly and a controller are arranged in the lintel, and an infrared sensor is arranged outside the lintel; the two driving assemblies are located on the two sides in the lintel, and the controller is located in the center in the lintel. And the driving assembly and the infrared sensor are connected with the controller. According to the safe anti-pinch induction type automatic door, a user can be prevented from being pinched, and the safety of the induction type automatic door is improved.
Owner:QINGDAO WOHUA SOFT CONTROL CO LTD

profile (lintel 10)

1. Name of the designed product: sectional material (lintel 10). 2. Use of the designed product: sectional material for building decoration. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.
Owner:周应军

Protective ancient building group repairing construction method

The invention discloses a protective ancient building group repairing construction method. According to the method, targeted repairing measures are taken according to the damage conditions of different parts, for example, the cracking position of a wood structure is inlaid with raw wood and bonded with modified epoxy resin, damage is repaired, and the original texture of the wood is maintained; roof repairing follows a traditional Chinese-style tile lap joint mode, the ridge upwarp height is strictly controlled, and the traditional modeling of an ancient building is reserved. And during wall surface treatment, the texture of a newly repaired part is consistent with that of an original wall surface by shoveling a crispy layer, painting mortar and then performing antique finishing. When the door and window opening is formed in the wall body, the lintel and the constructional column are arranged firstly, then the wall body is dismantled, the distance between the lintel load and the constructional column is determined in combination with an intelligent calculation model, the wall body collapse risk is effectively avoided, the stability of the overall structure of the ancient building is guaranteed, and the problem that an original structure is prone to being damaged in traditional repairing is solved; the construction efficiency and the use function of the ancient building are remarkably improved, and unification of historical protection and modern requirements is achieved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Hidden electric lintel curtain

The utility model discloses a hidden type electric lintel curtain, and relates to the technical field of electric curtains. Comprising a track body, a belt is movably arranged in the track body, the two ends of the belt are connected with curtain traction sliding blocks, a pull strip is movably arranged on one side of the track body, and the two ends of the pull strip are provided with a first sliding block and a second sliding block respectively, one end of the curtain traction sliding block penetrates through the track body and the pull strip and is provided with a lintel curtain hanging frame. The lintel curtain hanging frame is pulled through the belt, the lintel curtain and the main curtain can be automatically pulled and closed at the same time, compared with a manual lintel curtain pulling and closing mode and an automatic pulling and closing mode, the lintel curtain hanging frame is more uniform in stress and not prone to damage, and due to the arrangement of the pulling strip, when the main curtain and the lintel curtain are stored together, the lintel curtain can be automatically pulled and closed. The lintel curtain can be hidden behind the main curtain and cannot be exposed, the appearance is more attractive, and the use requirements of users are met.
Owner:ZHEJIANG NANHU WINDOW DECORATION CO LTD

Lintel formwork erecting device

The utility model belongs to the technical field of building construction equipment, and discloses a lintel formwork erecting device which comprises two supporting assemblies and a forming assembly, the two supporting assemblies correspond to wall bodies on the two sides of a hole in a one-to-one mode, each supporting assembly comprises a main frame body, two first fixing pieces and two sets of first fastening pieces, and the main frame body is attached to the wall bodies; the two fixing pieces are arranged on the main frame body in a spaced mode and symmetrically distributed on the two opposite sides of the wall body, the two sets of first fastening pieces are correspondingly and adjustably connected to the two first fixing pieces, and the two sets of first fastening pieces can move in the opposite directions to clamp the wall body; the forming assembly comprises two L-shaped bearing pieces, a forming mold and a connecting piece, the two ends of each L-shaped bearing piece are correspondingly erected on the two first fixing pieces, the two L-shaped bearing pieces are oppositely arranged and connected through the connecting piece to form a mounting space, and the forming mold is arranged in the mounting space and provided with a pouring groove. According to the utility model, the problems of damage to a wall body, passage blocking and template expansion in the construction process can be solved.
Owner:CHINA HUASHI ENTERPRISES

Construction method of deep and large foundation pit without support replacement

This invention discloses a construction method for deep and large foundation pits without the need for replacement supports, belonging to the field of underground structure sequential construction technology. During the main structure construction, after the previous formwork sidewall is completed, only the next steel support is removed; replacement supports are no longer installed, thus eliminating the need for replacement supports. Only the concrete supports are cut, retaining the lintel beams, which function as part of the sidewall, allowing them to play a role in both the excavation and main structure construction phases. The bottom slab ribs are adjusted from triangular bevels to stepped shapes, allowing the scaffold uprights to act vertically on the ribs, ensuring the overall stability of the scaffold. The increased rib cross-sectional dimensions reduce the impact of lateral deformation of the foundation pit on the sidewalls. This invention shortens the construction process, reduces construction costs, ensures foundation pit safety, and has good economic benefits.
Owner:CHINA RAILWAY SHISIJU GROUP CORP +2

Rail transit platform door top box structure

The utility model discloses a rail transit platform door top box structure which comprises a movable cover plate, a lintel assembly and a structural beam, the movable cover plate is connected to the platform side of the structural beam in a rotating mode through a swing rod which is arranged obliquely downwards, and the movable cover plate is further provided with a sliding support which inclines upwards and is used for supporting and fixing the movable cover plate. The length of the swing rod is larger than the distance between the structural beam and the movable cover plate. The two ends of the swing rod are hinged to the first fixing base and the second fixing base and then fixed to the movable cover plate and the structural beam respectively, and the two ends of the sliding support are hinged to the third fixing base and the fourth fixing base and then fixed to the movable cover plate and the lintel assembly to be connected. When the movable cover plate is pushed upwards, the swing rod rotates upwards to drive the movable cover plate to move upwards to open the top box of the platform door, the sliding support continuously extends in the upward moving process of the movable cover plate, and the sliding support supports and limits the movable cover plate after the movable cover plate moves upwards to a proper position. The opened space of the platform door top box is large enough, so that the internal structure of the platform door top box is exposed for relevant maintenance operation.
Owner:NANJING KANGNI ELECTROMECHANICAL ENG CO LTD

Adjustable mold for prefabricating lintel

The invention belongs to the technical field of building material production, and particularly relates to an adjustable lintel prefabrication machining mold which comprises a mold base. A side plate is connected to the mold base in an inserted mode. Two width adjusting plates are connected to the mold base in a sliding mode, and the two width adjusting plates are oppositely arranged. The double-thread lead screw synchronously rotates on the fixing frame by holding the handle to rotate, the two width adjusting plates matched with the double-thread lead screw in a threaded mode slide in the opposite directions, the two width adjusting plates can get close to each other or get away from each other, and therefore the effect of adjusting the width of the adjustable prefabricated mold is achieved. Moreover, when the length of the lintel prefabrication is adjusted, a length adjusting plate is used for replacing a traditional partition plate, the length adjusting plate is slidably connected to the mold base and is matched with a sliding rod to be slidably connected to the mold base to limit the sliding direction of the length adjusting plate, the length adjusting plate slides on the mold base so that the length of the lintel prefabrication can be adjusted, and control over the length of the lintel prefabrication is achieved.
Owner:ROAD & BRIDGE INT CO LTD