65results about How to "Improve demolition efficiency" patented technology

The invention discloses a forming process and a forming mold of a precast concrete box-type house. The forming process comprises the following steps: step S1, pouring concrete out of a house bottom plate; s2, a wall plate inner mold and a wall plate outer mold are mounted on the house bottom plate subjected to pouring forming, and a wall plate pouring cavity is formed between the wall plate inner mold and the wall plate outer mold; s3, a top plate mold is in lap joint with the wallboard inner mold, and a top plate pouring groove is formed between the top plate mold and the wallboard outer mold; s4, a temporary supporting rod is arranged at the bottom of the top plate mold; s5, concrete is poured into the wall plate pouring cavities and the top plate pouring grooves, and house wall plates and roof plates are formed; s6, after the house wall plates and the roof plate are poured and formed, the wall plate inner mold, the wall plate outer mold and the temporary supporting rods are removed; the top plate formwork is a non-dismantling formwork, and the top plate formwork is reserved on the roof plate formed through pouring. The production efficiency of the box-type house can be improved.

According to the construction method of the make-up water pipe reconstruction project, by means of deep fusion of three-dimensional modeling laser scanning and a geographic information system, the existing pipe and surrounding conditions are accurately surveyed, a route is scientifically planned, and the construction risk and the change possibility are reduced; and when the old pipe is dismantled, the flexible airtight packing cabin is matched with colloid injection to ingeniously stop water in a segmented mode, orderly cutting is matched, the pipe section is safely dismantled, blasting hazards are avoided, and the dismantling efficiency is improved. When the new pipe is laid, the damping and noise reduction cushion layers are arranged in the grooves, the external force resistance of the new pipe is enhanced, fine verification is conducted after sealing connection, and the laying precision and quality are guaranteed. After new pipe connection is completed, tracer particle water is injected, deep inspection is conducted, segmented pressure testing is combined, hidden danger all-around troubleshooting is conducted, repairing and perfecting are conducted in advance, the reliability of the new pipe is greatly improved, the construction efficiency, quality and water supply long-term stability of a make-up water pipe modification project are remarkably improved, and the operation and maintenance cost is reduced.

The invention relates to a fixing device for bridge group anchors and a construction method, the fixing device for bridge group anchors comprises a plurality of steel strands and anchor bearing plates, and further comprises a mounting frame, the mounting frame comprises a back plate and a plurality of partition plates, the partition plates are fixedly mounted on the back face of the back plate, the partition plates divide the back plate into a plurality of compartments, and round holes are formed in the portions, in the middles of the compartments, of the back plate; and the anchor boxes are fixedly installed in the compartments, and installation parts of the anchor boxes penetrate through the round holes, are located on the front face of the back plate and are suitable for steel strands to penetrate through. According to the fixing device, an installation pipe is fixedly installed on a fixing plate, a steel strand penetrates through the installation pipe, and a pipeline installation hole is formed in an installation part of an anchor box and used for installing the installation pipe in a penetrating mode; the angle of the anchor box is adjusted and fixed when the anchor box is mounted, then the mounting pipe and the steel strand are positioned and fixed, the influence on the mounting angle of the steel strand in the subsequent construction process is avoided, the incident angle of the steel strand can be accurately controlled, and firmness and reliability are achieved.

The utility model relates to the technical field of photovoltaic combiner boxes, in particular to a photovoltaic combiner box which comprises a mounting plate, fixing boxes distributed in an array are mounted on the front end face of the mounting plate, clamping blocks are clamped in the fixing boxes, and a photovoltaic combiner box body is fixedly connected to the inner side faces of the clamping blocks. According to the photovoltaic combiner box mounting plate, the whole mounting plate can be fixed on a wall through the supporting plates and the second fastening bolts, then the whole photovoltaic combiner box can be conveniently and rapidly mounted or dismounted in a clamping mode, time and labor are saved, and the mounting plate is convenient to mount and dismount. The photovoltaic combiner box dismounting efficiency is improved, third fastening bolts are rotated to relieve limiting of the containing plate, in this way, a movable rotating plate and a rotating plate which are rotationally installed can rotate relative to each other so that the containing plate can be moved out of the photovoltaic combiner box, and electrical installation guide rails on the containing plate can be comprehensively displayed; therefore, electrical components in the photovoltaic combiner box can be detected.

The utility model discloses pile dismounting equipment which comprises a dismounting and hoisting platform, a vibratory hammer, a clamping device and a fluid jetting device, the vibratory hammer is connected with the dismounting and hoisting platform, and the output end of the vibratory hammer is connected with the top end of a cylindrical pile; the clamping device is connected with the dismounting and hoisting platform and is used for clamping the cylindrical pile; the fluid jetting device is connected with the dismounting and hoisting platform and movably arranged on the dismounting and hoisting platform in the axial direction of the cylindrical pile, and the fluid jetting device is used for jetting fluid to break through soil around the cylindrical pile. According to the pile disassembling equipment, the vibratory hammer is arranged at the top of the cylindrical pile to vibrate and hit the cylindrical pile, and the fluid jetting device is arranged to impact soil around the cylindrical pile, so that the friction force between a seabed and the cylindrical pile can be reduced, and the cylindrical pile can be conveniently pulled out of the seabed; the dismounting efficiency of the cylindrical pile is improved, the dismounting cost of the cylindrical pile is reduced, and the safety in the dismounting process of the cylindrical pile is improved.

The present application discloses a tower crane dismantling auxiliary device, which is used to assist in dismantling the tower crane and improve the dismantling efficiency and safety. The present application includes: a main arm, a secondary arm, a pulley, a back-pull assembly and a side-pull assembly; one end of the secondary arm is fixed to the main arm, the other end of the secondary arm is fixed to the arm frame of the tower crane, the secondary arm is used to support the main arm, one end of the main arm is connected to the pulley, the other end of the main arm is fixed to the arm frame of the tower crane, the pulley is fixed to the upper end of the main arm through a rotating shaft, the pulley is used to support the steel cable of the hoist of the tower crane, the steel cable passes around the pulley, one end of the steel cable is connected to the hoist of the tower crane, and the other end is connected to the dismantling part, the steel cable lifts or lowers the dismantling part under the drive of the hoist, the back-pull assembly fixes the main arm and provides a backward balancing pull for the main arm, and the side-pull assembly fixes the main arm and provides a lateral balancing pull for the main arm.

The utility model discloses a road isolation belt, and relates to the technical field of road construction equipment. The device structurally comprises a linear cement pier, a right-angle cement pier, a direct stand column, a right-angle connecting stand column, a partition plate and a cantilever frame used for installing a lamp strip and a spray pipe. Rectangular through grooves communicating with the upper end faces of the linear cement piers are formed between the two ends of the linear cement piers. Rectangular insertion holes matched with the straight stand columns in an inserted mode are formed in the centers of the upper ends of the linear cement piers; a partition plate is installed between every two adjacent direct stand columns. Through the combined design of the linear cement piers, the right-angle cement piers, the direct stand columns, the right-angle connecting stand columns and the partition plates, an isolation belt can be rapidly built on a road; screws are not needed in the mounting process, so that the mounting and dismounting efficiency is improved; the design of the cantilever frame facilitates installation of equipment such as a lamp strip and a spray pipe, the lamp strip and the spray pipe can be fixed at different height positions through the U-shaped groove body and the kidney-shaped through hole, and the lighting and dust falling effects of a construction site are improved.

The present invention relates to the field of building formwork, and in particular to a mobile integrated pipe gallery inner formwork, comprising: a base, universal wheels arranged at the bottom of the base, a truss fixedly arranged on the base, an upper formwork fixedly connected to the truss, two corner formworks hinged to both sides of the upper formwork, two side formworks fixedly connected to the bottom of the corner formwork, and an opening and closing mechanism arranged between the two side formworks. The universal wheels are used for the free movement of the inner formwork, and the angles between the corner formworks and the side formworks and the upper formworks can be changed through the opening and closing mechanism, so as to complete the positioning of the inner formwork and the guide wall. Compared with the installation of scaffolding, the operation is simple and the precision is high. When the formwork needs to be dismantled, the opening and closing mechanism can also separate the side formworks and the corner formworks from the side wall of the pipe gallery, thereby improving the dismantling efficiency.

The utility model relates to the field of forcible entry tools, and discloses a forcible entry tool for emergency fire fighting, which comprises a fixing rod, a forcible entry device and a fixing plate, the forcible entry device is arranged at one end of the fixing rod, the fixing plate is arranged at the other end of the fixing rod, and the middle of the rear end of the fixing plate is fixedly connected with a limiting block. The middle of the front end of the fixing plate is fixedly connected with the other end of the fixing rod, the forcible entry device comprises a fixing block, a protruding block is fixedly connected to one side of the fixing block, a limiting groove is fixedly connected to the position, close to the lower portion, of the front end of the fixing block, and a first connecting rod is fixedly connected to one side of the rear end of the limiting groove. A second connecting rod is fixedly connected to the other side of the rear end of the limiting groove, and a handle is fixedly connected to the position, close to the lower portion, of the other side of the fixing block. According to the emergency fire-fighting forcible entry tool, window breaking and burglary-resisting window forcible entry are effectively conducted through the fixing plate, and meanwhile the forcible entry device is arranged to dismantle a single handrail.

The utility model provides an industrial personal computer convenient to disassemble and repair, which belongs to the technical field of industrial personal computers and comprises a base, a bearing plate is fixedly connected in the base, a machine body is arranged on the upper end face of the bearing plate, a limiting mechanism used for limiting the machine body is arranged on the base, and the machine body is rotatably connected with a cover plate through a hinge. A mounting box is fixedly connected to the right end of the upper end face of the cover plate through screws, two pressing blocks are symmetrically and slidably connected into the mounting box, clamping plates are fixedly connected to the lower end faces of the inner ends of the two pressing blocks, and a guide column is slidably connected between the two clamping plates. Through the arrangement of the base, the bearing plate and the limiting mechanism, the industrial personal computer can be rapidly disassembled and assembled, screws do not need to be frequently disassembled and assembled, disassembly and assembly are convenient and rapid, the industrial personal computer can be conveniently and rapidly disassembled and repaired, the disassembly and repair efficiency is improved, and the problem that in the prior art, the screws need to be frequently disassembled and assembled for disassembling and repairing the industrial personal computer, and consequently disassembly and repair are inconvenient is solved.

A box girder segmented foldable shrink core mold, which comprises segmented core molds, stacked rod longitudinal connecting steel wires and core mold longitudinal connecting bolts; the adjacent edges of the segmented core molds are connected by the core mold longitudinal connecting bolts to form a whole; a stacked rod longitudinal connecting steel wire is connected between the adjacent segmented core molds. The box girder segmented foldable shrink core mold has the following beneficial effects: the box girder folding inner mold can be stably folded and unfolded, and can be stably separated from the concrete, and the operation is convenient, so that the dismounting efficiency and construction safety of the box girder core mold can be improved.

The utility model discloses a multi-step stair formwork supporting device, relates to the technical field of building construction, and solves the technical problem that a multi-step stair formwork supporting device in the prior art is inconvenient to dismantle. The multi-step stair formwork supporting device comprises a base. The connecting rod is detachably mounted on the base, and the axis of the connecting rod is perpendicular to the base; one end of the supporting pipe is installed on the connecting rod in a sliding mode in the axis direction of the connecting rod, and the axis of the supporting pipe and the axis of the connecting rod are located on the same straight line; the limiting piece is installed between the supporting pipe and the connecting rod and used for fixing the supporting pipe; in the working state, the base is installed at the top end of the n stair formwork, and the other end of the supporting pipe abuts against the bottom end of the (n + 1) stair formwork. Therefore, through the arrangement of the connecting rod, the base can be separated from the supporting device without cutting, so that the dismantling efficiency of the multi-step stair template supporting device provided by the embodiment of the utility model is improved.

The utility model discloses a fire rescue forcible entry tool which comprises a fixed crowbar, a flat hoe is fixedly connected to the bottom of the fixed crowbar, a pointed-end crowbar is fixedly connected to the position, perpendicular to a flat crow plate, of the top of the fixed crowbar, a movable sleeve is slidably connected to the outer surface of the fixed crowbar, and fixing rings are fixedly connected to the two ends of the movable sleeve. The side, close to the flat crow plate, of the fixed ring is fixedly connected with a movable ring. A fixing frame is fixedly connected to the outer surface of the side, close to the pointed-end pinch bar, of the moving ring, a rotating rod is rotationally connected to the inner wall of the fixing frame, a connecting rope is fixedly connected to the outer surface of the rotating rod, and a protective sleeve is fixedly connected to the end, away from the rotating rod, of the connecting rope. According to the fire rescue forcible entry tool, the position of the movable sleeve can be moved, so that a user can confirm the optimal acting point according to the actual situation, the force distribution is more uniform when the user forcibly exits, bending of a crowbar in the forcible entry process is prevented, meanwhile, the force can be saved, and the forcible entry efficiency is improved.

The invention relates to the technical field of bridge construction, in particular to a gate-type pier cap climbing cone anchoring type bracket construction method which mainly solves the technical problem that large potential safety hazards exist when a cast-in-place pier cap is operated through a floor stand. The construction method comprises the steps that S1, pier top steel bars are bound; s2, preassembling a climbing cone assembly; s3, mounting a pier top template; s4, positioning a climbing cone; s5, pier top concrete pouring; s6, an inner side formwork of the pier top is dismantled, and concrete curing is conducted; s7, mounting a bracket and establishing a bracket system; s8, mounting a pier cap template; s9, pier cap steel bars and concrete are constructed; and S10, the formwork and the support system are dismantled. According to the construction method, the pre-buried climbing cone assembly is connected with the bracket and is matched with the support system to serve as a bracket to support pier cap construction, a floor stand does not need to be installed, the installation and detachment efficiency is improved, the labor cost is reduced, and meanwhile potential safety hazards are reduced; in addition, the structure can be reused, and is more energy-saving and environment-friendly.

The utility model discloses a cold anchor changing device for railway engineering, which comprises an anchor changing cutter, a fastening component, a sliding component and a lifting component, the fastening component is of an inverted U-shaped structure, the sliding component is mounted on the outer side wall of the vertical end of the fastening component along the vertical direction, and the lifting component is mounted on the outer side wall of the vertical end of the fastening component. The lifting assembly is installed on the side, away from the fastening assembly, of the sliding assembly so that the lifting assembly can synchronously move up and down along with the sliding assembly conveniently, the lifting assembly comprises a driving part and a clamping part, the output end of the driving part downwards penetrates through the sliding assembly and then is connected with the clamping part, and the inner wall of the clamping part is matched with the top of the anchor changing cutter in shape so that the anchor changing cutter can be clamped conveniently. The driving part and the clamping part are driven by the sliding plate to move up and down along the sliding rail, the anchor changing cutter is meshed with the plastic sleeve, and after the clamping part and the top of the anchor changing cutter are clamped, the driving part drives the clamping part to rotate, and the clamping part drives the anchor changing cutter and the plastic sleeve to rotate synchronously, so that the anchor changing cutter and the plastic sleeve are screwed out of the placing cavity. The dismantling efficiency of the plastic sleeve is improved, and the labor cost is reduced.

The invention relates to the technical field of bearing disassembly, in particular to a bearing outer sleeve disassembly device and method. The bearing outer sleeve disassembly device comprises a fixed frame placed on a bearing seat, two receding holes are formed in the top of the fixed frame, a circular tube cross beam is detachably placed in a bearing outer sleeve, and a plurality of steel balls are movably placed in the circular tube cross beam; the circular tube cross beam is in threaded connection with a pushing screw used for pushing the steel balls to the two sides, the two ends of the circular tube cross beam are connected with chains respectively, the two chains upwards penetrate through the corresponding receding holes, a movable cross beam is arranged above the fixed frame, the top ends of the chains are connected to the movable cross beam, and a jack is supported between the movable cross beam and the fixed frame. The device is easy in material obtaining, simple to manufacture and low in cost, the dismounting efficiency of the bearing outer sleeve is improved, the operation time is obviously shortened, and the construction technical difficulty is reduced.

The utility model relates to a wall formwork whole-piece sliding type dismantling mechanism which comprises a mounting part, the mounting part comprises a mounting plate, a sliding groove and a screw, a driving part is mounted above a bottom plate of the mounting part, a driven part is arranged above the sliding groove, the driven part comprises a connecting rod, a U-shaped rod, a pulley and a rotating shaft, and a lifting part is mounted on the outer wall of the side, away from the connecting rod, of the U-shaped rod; the lifting device has the advantages that the first motor is started, the output end of the first motor drives the lead screw to rotate, the sliding block connected to the outer wall of the lead screw in a threaded and sleeving mode moves along the outer surface of the lead screw, and then the connecting rod installed at the top of the sliding block drives the whole driven part and the lifting part to horizontally move along the inner wall of the sliding groove through the pulley; and a second motor is controlled to enable the output end of the second motor to drive a rope winding roller to rotate, and a rope surrounding the outer wall of the rope winding roller drives a connecting block to move up and down, so that the position of the dismantling mechanism is adjusted, the dismantling efficiency is improved, and the operation process is relatively simple.

The present application relates to the technical field of bridge demolition, in particular to a kind of multi-span solid-web masonry arch bridge quick demolition method, comprising the following steps: based on the data information of the multi-span arch bridge to be demolished, the three-dimensional model of the multi-span arch bridge is established, the vertical counterforce and horizontal force suffered by the arch foot of the arch bridge are calculated based on the three-dimensional model of the multi-span arch bridge, the best fixing position of the steel wire rope for demolition of arch bridge on the pier is calculated, and the specification of the required steel wire rope is calculated according to the best fixing position, the steel wire rope for pulling is installed at the best fixing position, the arch filler in the multi-span arch bridge is excavated, and the arch rib of the side span is chiseled from outside to inside until the whole side span collapses and falls into the river, the earthwork falling into the river is leveled as a construction access, the possible collapse range of the arch bridge is calculated, the pre-set steel wire rope is pulled outside the possible collapse range of the arch bridge until the arch bridge collapses.

The utility model relates to a horizontal stacking jig for laminated transformer cores, which comprises a bottom plate, a first side plate, a second side plate, a first middle plate and a second middle plate, the first side plate is fixedly arranged at one end of the bottom plate, and the first side plate is obliquely arranged relative to the width direction of the bottom plate; the second side plate is fixedly arranged at the other end of the bottom plate and is obliquely arranged relative to the width direction of the bottom plate; the first middle plate and the second middle plate are fixedly arranged in the middle of the bottom plate, are arranged at intervals, and are obliquely arranged relative to the width direction of the bottom plate. Compared with the prior art, overall dismantling is achieved, dismantling labor intensity is lowered, dismantling time is shortened, and dismantling efficiency is improved; the silicon steel sheets can be prevented from being damaged, and the product quality is guaranteed.

The utility model provides a kind of stainless steel abrasive disc automatic taking and replacing tool, it belongs to abrasive disc taking and replacing tool field, it includes: workbench, mechanical arm is installed on the workbench, motor is installed at the end of the mechanical arm, the output of the motor is connected with abrasive disc;Connecting assembly, the connecting assembly includes installation cylinder, positioning cylinder and two clamping columns, the installation cylinder is fixedly arranged at the output of motor, the positioning cylinder is fixedly arranged on abrasive disc, two The clamping column is slidably arranged and penetrates installation cylinder, the inside of the clamping column is fixedly arranged with limit stop, spring is fixedly arranged on the limit stop, the other end of the spring is fixedly arranged on the inner wall of installation cylinder.The utility model is provided with connecting assembly and release component, can quickly and conveniently disassembles and assembles abrasive disc, reduces the working strength of operator, improves production efficiency and job continuity.

The invention provides a medical orthopedic gypsum removal mechanism, and belongs to the technical field of orthopedics. Comprising a first placing frame and a second placing frame, the first placing frame and the second placing frame are fixedly connected through a pair of fixing plates, and one side of the first placing frame is fixedly connected with a fixing frame. Through cooperative use of the first placing frame, the second placing frame, the fixing frame and the sliding plate, in the process of removing plaster on the affected legs of the patient, the first placing frame and the second placing frame support the legs of the patient, and the fixing frame and the sliding plate limit the thighs of the patient; meanwhile, a first connecting plate and a second abutting block limit the legs of the patient, the affected legs of the patient can be fixed, when the plaster saw is used for cutting plaster of the affected legs, the situation that the legs of the patient shake due to tension is avoided, the stability of the patient in the process of cutting the plaster of the affected legs is improved, and the difficulty of removing the plaster is reduced.

The utility model discloses a quick erection and disassembly type protection frame for power line crossing construction, including base, first adjusting assembly and second adjusting assembly, first adjusting assembly includes adjusting part no.

The present invention relates to the field of building technology, and in particular to energy-saving, environmentally friendly green building wall components, including several groups of sound insulation components, wherein connecting blocks are arranged between two adjacent sound insulation components, each group of sound insulation components includes a folding frame and two horizontal slide rails, the folding frame includes two rectangular sliding frames, each rectangular sliding frame is provided with a sound insulation board, the top and bottom of each rectangular sliding frame are provided with a guide slide mechanism, each group of guide slide mechanisms includes several sliding heads, each horizontal slide rail is provided with a slide groove, each sliding head includes an elastic telescopic pin, each folding frame is provided with a quick-disassembly assembly part, when the folding frame is laid flat, the two rectangular sliding frames form a minimum single-layer sound insulation unit, and when the folding frame is folded, the two rectangular sliding frames form a minimum double-layer sound insulation unit, so that the thickness of the sound insulation board laid on the wall can be ultimately changed by changing the state of the folding frame, and the flexibility of the sound insulation component is ultimately improved.

The invention discloses a decommissioned photovoltaic junction box dismantling device, and relates to the technical field of photovoltaic module recycling, the decommissioned photovoltaic junction box dismantling device comprises a frame, a conveying mechanism is fixedly arranged at the top of the frame, a first air cylinder is fixedly arranged at the top of the frame, the first air cylinder is located right above the conveying mechanism, and a movable frame is fixedly connected to the outer side of the output end of the first air cylinder; a second air cylinder is fixedly arranged at the top of the movable frame, a connecting frame is fixedly installed at the bottom of the output end of the second air cylinder, limiting rods are fixedly arranged on the two sides of the top of the connecting frame, the tops of the limiting rods slidably extend to the outer side of the movable frame, and a driving motor is fixedly arranged on the outer side of the connecting frame; the output end of the driving motor is in driving connection with a lead screw, and the outer surface of the lead screw is sleeved with a movable rod in a threaded mode. The invention effectively solves the problems of low efficiency, easy damage of parts, waste of resources and incapability of classified collection in the existing dismantling mode, and is suitable for recycling and dismantling operation of the junction box of the retired photovoltaic module.

The invention discloses a grid type hot bed base plate, a 3D printer and a method. The base plate comprises a supporting body. The grid assemblies are installed at the top of the supporting body, and the multiple grid assemblies are sequentially arranged in the full-length direction of the supporting body at intervals; the positioning assemblies are installed on the two opposite sides of the supporting body and used for positioning the multiple grid assemblies; the guide assembly is mounted on the positioning assembly, and a pressing assembly is mounted at the top of the guide assembly; and the control device is electrically connected with the pressing assembly, and the control device is used for controlling the pressing assembly to move in the full-length direction of the supporting body through the positioning assembly and pressing the multiple grid assemblies downwards in sequence at the same time, so that the tops of the grid assemblies are separated from the printing workpiece. And after the printing of the workpiece is completed, each grid assembly can be effectively separated from the bottom of the workpiece through the cooperation of the guide assembly and the pressing assembly, the workpiece can be quickly dismounted from the top of the grid assembly, the dismounting efficiency is improved, and the damage to the workpiece is avoided.

The utility model relates to an injection mold assembly and an injection molding machine, and relates to the technical field of injection molding. The injection mold assembly comprises a first mold and a second mold, and the first mold and the second mold can move relatively so that a mold cavity can be defined when the first mold and the second mold are attached to each other; the forming part is provided with a forming part for forming a product structure; and the transmission assembly is connected with the forming piece, and the transmission assembly is configured to drive the forming piece to do spiral motion relative to the first mold when the first mold and the second mold move relatively, so that the forming part extends into the mold cavity when the first mold and the second mold are attached, and the forming part extends into the mold cavity when the first mold and the second mold are separated. And the forming part is screwed out of the product. And when the mold is separated, the transmission mechanism drives the forming part to spirally move, so that the product is smoothly separated from the forming part. And compared with manual screwing of the product, the dismounting efficiency and safety of the product are improved.

The invention discloses a precast beam formwork device, which belongs to the technical field of building construction and comprises a bottom formwork structure and two side formwork structures symmetrically arranged on the left side and the right side of the bottom formwork structure. The side mold structure comprises a plurality of mold plate assemblies which are spliced together, each mold plate assembly comprises a rack and a mold plate installed on one side of the rack, a grout stopping strip is arranged between the mold plates of every two adjacent mold plate assemblies, grout stopping grooves are formed in the mold plates, and the grout stopping strips are detachably installed in the grout stopping grooves. An air bag is arranged on the side, away from the concrete pouring face, of the grout stop strip, the lower end of the air bag is connected with an inflation pipe, and a valve is arranged at the end of the inflation pipe and connected with an inflation connector. The problem that a grout stop strip of an existing precast beam formwork is inconvenient to disassemble and assemble is solved.

The present invention discloses a door rail system for temporary housing in an engineering project, and relates to the technical field of suspended door rails. The door rail system includes a fixed seat, a connecting seat and a hanging rail from top to bottom, and the fixed seat and the connecting seat are transitionally connected by a height adjustment component; the hanging rail is transitionally connected to the connecting seat by a clamping component. The present invention breaks through the traditional method of removing the hanging door by dismantling the hanging rail pulley, and directly removes the hanging rail. After the hanging rail is removed, the hanging door is also removed along with the hanging rail. The hanging rail is transitionally connected to the connecting seat by a clamping component, and the hanging rail is installed in the form of a clamping plug, which can quickly realize installation and removal, and is suitable for the rapid construction of temporary housing in an engineering project, as well as the rapid disassembly of temporary housing in a later stage of the engineering project, thereby improving the construction and dismantling efficiency of temporary housing in an engineering project; the height of the hanging rail can be adjusted by the height adjustment component, and the height of the hanging door from the ground can be directly adjusted without removing the hanging door.