630results about "Ceramic shaping mandrels" patented technology

The invention discloses a self-regulation internal mold system for a prefabricated box girder, and relates to the technical field of prefabricated box girders. A displacement trolley is displaceably arranged at the top of the sliding seat cross beam; the side edge top plate and the side edge bottom plate are assembled by arranging the combined top plate, and the situation that an existing adjusting formwork is difficult to adapt to different widths in the pouring process is avoided by adopting transverse plate overall assembly and sectional assembly; the phenomenon that concrete on the middle side below the bottom film is difficult to vibrate and exhaust is solved through segmented installation, the phenomenon that the concrete flows into the bottom film and is solidified under the cooperation of side edge connecting pieces, and consequently an adjusting joint of a formwork loses efficacy is reduced, and by arranging a sliding base cross beam and a centering support of a displacement trolley, the formwork can be stably adjusted. The load of the side edge top plate is completely transmitted to the sliding seat cross beam through the double-shaft adjusting cylinder assembly, disturbance to concrete below the bottom film is reduced in the pouring process, and cracks are prevented from being formed in the concrete pouring process.

A composite material hollow guide vane forming die comprises a bottom die and a pressing die, the bottom die is fixedly arranged, the pressing die can move relative to the bottom die, and the pressing die and the bottom die jointly define a forming space of a composite material hollow guide vane. Wherein the bottom die comprises a core die, the core die comprises an expansion body, the circumferential surface of the expansion body is configured to be an annular laying supporting face, and the expansion body enables the laying supporting face to expand in the radial direction. The mold can provide uniform pressure from inside to outside for the prefabricated body in the forming process, the uniformity of forming pressure distribution is improved, the prefabricated body is fully compacted, the quality defect caused by dimensional deviation or thermal expansion performance difference is avoided, and the part performance is improved. The invention further provides a manufacturing method of the composite hollow guide vane.

The utility model provides a hydraulic box girder template, which comprises an inner mold, an outer mold and a side baffle mold, a left side mold, a right side mold and a lower mold are connected with an upper mold through a right hydraulic cylinder, a left hydraulic cylinder and a lower mold hydraulic cylinder, so that the left side mold, the right side mold and the lower mold are easier to demold; a right hydraulic cylinder, a left hydraulic cylinder and a lower mold hydraulic cylinder can support an inner mold structure, damage to a box girder which is being poured or to be solidified is avoided, a left side mold, a right side mold and a lower mold are fixed through a right triangular plate and a left triangular plate, the inner mold structure is more stable, the service life of the inner mold is longer, and sliding grooves are formed in the inner side of a left outer mold and the inner side of a right outer mold correspondingly. The left side and the right side of the base are installed on the sliding grooves, and the walking wheels are installed at the lower end of the base, so that the box girder can be conveniently demolded from the outer mold through the base, the box girder can be transported to a designated position through the walking wheels, operation can be conducted again conveniently, and operation efficiency is improved.

The invention relates to a top-cover-free rectangular concrete body inner mold demolding device and demolding method.According to the top-cover-free rectangular concrete body inner mold demolding device, through innovative structural design, a rectangular inner mold is divided into two angle molds and two L-shaped molds, and a track extending by a specific angle (45 degrees in the horizontal direction) and an intermittent driving device are matched. During demolding, the intermittent driving device can accurately drive the two angle molds to synchronously slide inwards firstly, the contact area and friction force between the inner mold and a concrete body are effectively reduced, then the two L-shaped molds are driven to synchronously slide inwards, and the whole demolding process is completed. Compared with a traditional demolding mode, the demolding efficiency is greatly improved, and the demolding time is shortened; by the adoption of the gradual demolding mode, direct beating and violent disassembly of the mold and the concrete body are avoided, the risk that the inner mold and the concrete body are damaged is effectively reduced, the surface integrity and the internal structural strength of the concrete body are guaranteed, the service life of the inner mold is prolonged, and the production cost is reduced.

The utility model discloses a concrete inclined plane inner film anti-floating tool which comprises two wood molds and an inner film main body arranged between the two wood molds, and further comprises a plurality of pressing plates rotationally arranged on the wood molds through rotating shafts, and a plurality of clamping plates rotationally arranged on the inner film main body through rotating shafts, the pressing assembly is arranged on the pressing plate; the pressing assembly is arranged at the position of the wood mold and matched with the reinforcing assembly, when concrete pouring is conducted in the inclined wood mold, the inner mold can be pressed, and therefore the phenomenon that the inner mold cannot be pressed when the concrete pouring is conducted in the inclined wood mold is avoided. The inner film main body floats upwards under the condition that the pressure intensity of the upper part is greater than that of the lower part and concrete has certain buoyancy, so that a cavity formed after pouring is deformed.

A large immersed tube full-section prefabricated lightweight formwork system comprises an inner formwork rack and an outer formwork rack, the inner formwork rack comprises an inner formwork fixing frame and an inner supporting rod assembly, the outer formwork rack comprises a top truss and two outer side trusses, an inner formwork comprises an inner formwork body and a lower chamfering part, and the inner supporting rod assembly comprises an inner supporting connecting rod and an inner telescopic oil cylinder. According to the embodiment of the invention, the inner template mounted on the inner template rack extends to the lower chamfer, and the three inner support connecting rods which are in the same straight line under the support of the two inner telescopic oil cylinders are used as the inclined support structure, so that the concrete which is firstly solidified at the lower chamfer can upwards support the horizontal part at the top of the inner template through the inclined support structure; and under the conditions of large span and large weight, the top plate reinforcing steel bars are stably supported, and the situation that the prefabrication precision of the immersed tube top plate is reduced due to downward deformation of the top plate reinforcing steel bars is avoided.

The invention discloses a construction technology for a prefabricated drainage box culvert steel formwork, and is suitable for the technical field of box culvert formwork construction. The drainage box culvert steel formwork system comprises the construction steps of construction preparation, installation of a pedestal and an inner formwork support, installation of a box culvert foundation, installation of an inner formwork assembly, installation of a formwork assembly, one-time pouring forming, formwork removal after pouring and transferring. The construction site regionalization layout is adopted, a box culvert steel bar binding area and a formwork installation transverse moving area with an adjustable inner formwork support are arranged, the circulating operation of formwork erecting, pouring, demolding and transferring is achieved through a main beam suspension type inner formwork assembly, and a hydraulic formwork collecting device is innovatively adopted for driving a symmetrical hinged type inner formwork system; and in combination with the symmetry and multi-point uniform stress characteristics of a plurality of auxiliary supporting devices, the bending deformation of the inner template is effectively controlled through sequential control of a layered equal-height high-speed pouring process with preferential base angles.

The invention relates to the technical field of building construction, in particular to a modular building full-automatic prefabricating mold system and an operation method thereof. The prefabricating mold comprises an outer mold device and an inner mold device, the outer mold device comprises a first peripheral wall plate arranged around the vertical axis, the inner mold device is arranged in the first peripheral wall plate, and the inner mold device comprises a second peripheral wall plate arranged around the vertical axis. An annular mold cavity is jointly defined between the second peripheral wall plate and the first peripheral wall plate, the interior of the mold cavity is used for prefabricating a machined part, the second peripheral wall plate forms a rectangular structure in an enclosing mode, the second peripheral wall plate comprises corner mold parts oppositely arranged in the diagonal direction and L-shaped mold plates oppositely arranged in the diagonal direction, and the corner mold parts and the L-shaped mold plates are oppositely arranged in the diagonal direction. The corner module is driven by a first driving mechanism, and the L-shaped template is driven by a second driving mechanism. The operation method applies the prefabricated mold. The operation method adopting the prefabricating mold is high in automation degree.

According to the hollow concrete pile core mold tensioning structure, a pouring core mold is supported by a tensioning framework, the outer side of the tensioning framework is wrapped with an elastic skin, the elastic skin forms a hollow structure during concrete pouring through circumferential stretching or stretching of the tensioning framework, and the hollow structure is pulled out of a center hole after forming; and pouring forming of the hollow concrete pile is completed, the tensioning framework supports the elastic skin in an attached mode through the multiple inner supporting plates, the inner supporting plates are supported in the radial direction through the jacking structure, and in the process, expansionary force and supporting force of the elastic skin are provided. The pouring core mold is in tensioning fit with the tensioning plate set through the tensioning rod, the tensioning rod is connected with the tensioning adjusting device, the tensioning adjusting device can tighten or loosen the jacking structure, the inner supporting plate is supported or recycled by the jacking structure, and forming of the hollow structure of the hollow concrete pile through the elastic skin is completed. The invention further provides a hollow concrete pile tensioning die.

The invention relates to the technical field of ceramic forming equipment, and discloses a weaving machine ceramic nozzle pressing forming device which comprises a workbench, a mold cover installed on the workbench, a mold core inserted into the mold cover, a driving motor installed at the bottom of the workbench, a synchronous plate, a guide plate, a knocking rod, a synchronous rod and a combined groove. In the pressing forming process, a driving motor drives a lead screw shaft and an adjusting roller to rotate, a lead screw lantern ring on the lead screw shaft drives a flat plate and a pressing plate to move downwards, the bottom of the pressing plate can slide downwards through a pressing block connected with a pressing rod, and then the pressing block is inserted into a mold cover to press raw materials, so that a nozzle can be formed; and the knocking rod is pushed to continuously knock in the movement of the lantern ring, so that the knocking range is wider, the oscillation is more uniform, only one driving source is used in the pressing and oscillation processes, the equipment production cost is lower than that in the prior art, and the later maintenance is more convenient.

The invention relates to an ecological frame mold and a using method thereof, and relates to the technical field of ecological frame molds. The ecological frame mold is used for manufacturing an ecological frame and comprises an outer mold mechanism and an inner mold mechanism. The sliding rails are arranged to drive the four formworks of each outer formwork mechanism, the formwork disassembling and assembling efficiency of the outer formwork mechanisms can be improved, and the construction efficiency of ecological frame manufacturing is improved; after an inner mold mechanism is installed on the bottom mold plate, a first rack and a second rack can be driven by rotating a gear bearing rod so as to drive a first pull rod and a second pull rod to move, and then the two L-shaped inner mold plates and the two fillet inner mold plates are controlled to conduct mold disassembly and mold assembly movement; and the two fillet inner templates and the two L-shaped inner templates have a certain motion starting time difference, so that the two templates do not interfere with each other when the two templates are subjected to mold removal and mold closing motion, normal operation of the mold removal work can be guaranteed, and the mold removal and mold closing efficiency of the inner mold mechanism can be effectively improved.

The utility model relates to a hollow inner mold anti-floating fixing support, and relates to the technical field of bridge engineering, the hollow inner mold anti-floating fixing support comprises two co-pressing beams and a base connected with an outer mold, the two sides of the base are symmetrically and fixedly provided with at least two sets of vertical rod pieces, the vertical rod pieces are arranged in the vertical direction, and the height of the vertical rod pieces can be adjusted; wherein one co-pressing beam is fixedly connected with the tops of all the vertical rod pieces located on one side of the base, the other co-pressing beam is fixedly connected with the tops of all the vertical rod pieces located on the other side of the base, the bottoms of the two co-pressing plates are jointly provided with a plurality of cross beams, the bottoms of the cross beams are vertically provided with connecting pieces, and the connecting pieces are used for connecting the cross beams and the inner film. The device has the effect of conveniently adjusting the position of the cross beam so as to correct and adjust the height position of the inner film.

The invention relates to a prestressed shield tunnel and a lining member prefabrication method thereof.The prestressed shield tunnel is formed by splicing a plurality of prestressed shield segments, a hole channel is formed in each prestressed shield segment, each hole channel comprises a pipe body and two hole channel expansion sections located at the end of the corresponding prestressed shield segment, and the pipe bodies are communicated with the hole channel expansion sections; in the prefabrication process of the prestressed shield segment, the pore channel expansion section is a concrete pipeline formed by a pore channel fixing mold used for fixing a pipe body in the concrete pouring process. According to the invention, the end part of the duct is designed into the expansion section, so that the demolding process can be obviously improved, and meanwhile, the penetration process of the prestressed steel bundle in the duct after the duct pieces are assembled into a ring is also improved. And the opening of the expansion section is large, so that the duct fixing mold is more easily separated from the tube sheet. And meanwhile, the pore channel expansion section also provides a wider inlet and outlet for the prestressed steel beam, so that the prestressed steel beam is more easily transited from one duct piece to the pore channel of the next duct piece.

The invention discloses a UHPC sheath pouring mold for a pile foundation and a pouring method of the UHPC sheath pouring mold, and relates to the technical field of building construction equipment. A protection assembly for improving the structural strength of the pile foundation is arranged on the outer side of the pile foundation; the outer side of the protection assembly is wrapped with a pouring mechanism for conducting pouring preparation on the protection assembly, the pouring mechanism comprises an inner mold, and two outer molds are symmetrically installed on the outer side of the inner mold; the protection assembly comprises a supporting framework placed between an interlayer of the outer mold and an interlayer of the inner mold, and the outer side of the supporting framework is wrapped with an inner steel mesh and an outer steel mesh. The pouring mechanism is matched with pouring of concrete grout to prepare the protection assembly, then the protection assembly is carried and installed on the outer side of the pile foundation, and the structural strength of the pile foundation is improved. The UHPC sheath pouring mold for the pile foundation and the pouring method of the UHPC sheath pouring mold have the effects of high performance, high structural strength and high protection capacity.

The invention relates to the technical field of plate girder pouring, in particular to an inflatable core mold and a working method thereof.The inflatable core mold comprises an end mold and a plate girder pedestal, the plate girder pedestal is provided with a core mold body and a steel bar frame, the upper side of the core mold body is provided with a PVC half pipe, the core mold body comprises an outer-layer air bag and an inner-layer air bag, the outer-layer air bag is divided into a plurality of independent air cavities, and the inner-layer air bag is divided into a plurality of outer-layer air cavities; the outer-layer air bag and the inner-layer air bag are connected with air valves; the steel bar frame comprises a top plate steel bar and a bottom plate steel bar, a drag hook bar is arranged on the upper side of the core mold, side molds are arranged on the two sides of the steel bar frame, a top supporting structure is arranged on the upper sides of the side molds, and the top supporting structure comprises a pressing lever, a rope sleeve and a tensioning structure; the PVC half pipe and the inflatable core mold support are combined, the PVC half pipe has certain rigidity, stable top reverse support can be provided for the core mold, buoyancy can be effectively resisted, and the deformation risk is reduced; the PVC half pipe can be taken out from the plate girder, so that the construction cost is reduced, and the quality of concrete in the cavity is convenient to observe.

To achieve reducing the effort to remove stop plugs and the effort to repair pulling-out holes in concrete when manufacturing PCa members, and reducing the effort to attach / remove stop plugs and the effort to backfill pulling-out holes in concrete, and reducing deterioration in appearance when joining PCa members.SOLUTION: A discharge cap 1 made of a polymer material is used, which includes a seal part 2 inserted into a discharge pipe 14, a head 7, a neck part 6 narrower than the head 7, and a discharge path 9 penetrating from the seal part 2 to the head 7. The discharge cap 1 is attached with the seal part 2 inserted partway into the discharge pipe 14, and a formwork surface presses the head 7 so that the seal part 2 is further inserted, and concrete is poured to manufacture a first PCa member. This first PCa member and another second PCa member are joined by disposing ends of each reinforcing bar inside a sleeve 10, injecting grout, and discharging it from an opening of the discharge cap 1.SELECTED DRAWING: Figure 1

The invention relates to a manufacturing process of a ceramic pump blank. The manufacturing process comprises the steps of manufacturing a pump body runner wood mold, manufacturing a pump body runner gypsum female mold, assembling a mold, pouring a ceramic pump blank, pouring the ceramic pump blank, demolding, repairing the mold, airing and taking the mold. The pump body runner wood mold and the pump body runner gypsum female mold are combined and assembled into a combined mold with a ceramic pump blank cavity, and then a ceramic pump blank is formed through casting; and in the demolding process, the ceramic pump blank is not deformed or damaged. According to the ceramic pump blank manufacturing process, the ceramic slurry is manufactured into the ceramic pump blank, and preparation is made for subsequent ceramic pump body production.

The invention provides a perforated brick production mold, and belongs to the technical field of perforated brick processing. Comprising a U-shaped fixing plate, one end of the U-shaped fixing plate is inserted into the inner wall of the inserting groove, the other end of the U-shaped fixing plate is fixedly connected with a first fixing plate through a screw, a second fixing plate is fixedly connected to the outer portion of one side of the first fixing plate, and a first round hole groove is formed in the outer wall of the top of the first fixing plate; the end, away from the first fixing plate, of the second fixing plate is fixedly connected with a third fixing plate. By arranging the rotating assembly, the knocking column on the inner wall of the large hole column can be knocked during rotation, so that the large hole column drives the small hole column to shake, bubbles in a concrete mixture in the fixed mold are discharged through vibration generated by cooperation of the knocking column and the small hole column, and meanwhile collapse generated by bubble discharging at the top of the mixture is rolled to be flat.

To provide a hollow form for a precast segment girder and a manufacturing method of the precast segment girder, which can efficiently manufacture a cross section reverse U-shaped precast segment girder capable of easily recognizing aging degradation by visual inspection, a static image, a moving image or the like.SOLUTION: A hollow form 100 for a precast segment girder is for forming a hollow part (21) of a cross section reverse U-shaped precast segment girder (2) where an opening groove (22) is formed by opening a lower part of the hollow part (21) like a groove. The hollow form 100 is partitioned into multiple narrower width pieces than the width of the opening groove (22), and is constituted to be able to remove a form by extracting each piece among the multiple pieces of the hollow form 100 from the opening groove (22) after concrete placing.SELECTED DRAWING: Figure 6

The present invention discloses a ceramic columnar product and a preparation method and application thereof, which relates to the field of ceramic materials. A ceramic slurry is prepared by mixing ceramic powder with a dispersant and a binder, and then the ceramic slurry is sprayed and granulated, and then the granulated powder is dry pressed and formed, and then the dry pressed blank is cold isostatically pressed to obtain a ceramic blank, and finally the blank is heat treated to obtain a ceramic product with a density of 99.5% to 99.8%, a bending strength of more than 580MPa, a microhardness HV1 of more than 2000, and an average grain size of no more than 6μm. The method is not only suitable for the sintering preparation of conventional columnar and tubular products, but also suitable for the preparation of tubular products with an inner diameter of not less than 0.04mm, especially for the preparation of rod-shaped or tubular products with a large aspect ratio or with variable diameter or special shape.

The utility model discloses a large-size ceramic part underflow opening forming mold, and relates to the technical field of ceramics. According to the technical scheme, the mold comprises a mold frame, a lower gasket and a lining, the mold frame is hollow and open in the upper and lower portions, the lower gasket is arranged at the bottom of the mold frame, the top of the lower gasket extends into the mold frame, and the part, extending into the mold frame, of the lower gasket is attached to the inner wall of the mold frame; the lining is arranged in the mold frame, a handle is arranged at the top of the lining, a protrusion is arranged at the bottom of the lining, a groove is formed in the center of the lower gasket, and the protrusion is arranged in the groove and matched with the groove; a gap is formed between the lining and the mold frame, and ceramic slurry of the underflow opening of the ceramic piece is poured in the gap. According to the size precision design of the underflow port, the shape and size requirements of the underflow port are met, and the batch production precision of the ceramic underflow ports of the same size type can be ensured.

The invention discloses a prefabricated drainage box culvert steel formwork system which is suitable for the technical field of box culvert formworks. The prefabricated drainage box culvert steel formwork system comprises a pedestal, an outer formwork assembly and an inner formwork assembly. The inner formwork assembly comprises an inner formwork supporting system, a walking system and a hydraulic system. The walking system comprises a main beam and inner mold supports, the two sides of the pedestal are each provided with one inner mold support, the main beam is located over the pedestal, the bottoms of the two ends of the main beam are erected on the inner mold supports, supporting frames are arranged at the two ends, within the range between the two inner mold supports, of the main beam, and supporting legs are arranged at the two ends of the transverse bottom of each supporting frame. Each supporting leg is provided with a walking wheel. The inner mold supporting system comprises a plurality of supporting units and a mold retracting device, each supporting unit comprises an inner top mold, an inner side mold, an angle mold and the mold retracting device, and the mold retracting device is controlled by a hydraulic system to stretch out and draw back to adjust the inner side mold and the angle mold to be in place. Hydraulic linkage is combined with the walking system to achieve automatic contraction and transfer, and the internal mold turnover rate is high.

The invention relates to a ceramic artwork forming mold and a using method thereof.The ceramic artwork forming mold comprises a firing base, a pouring box is fixedly mounted at the top of the firing base, a top cover is fixedly mounted at the top of the pouring box, and electric sliding rails are fixedly mounted on the front side wall and the rear side wall of the top cover correspondingly; a supporting frame is slidably mounted between the electric sliding rails on the two sides, a top plate is fixedly mounted at the top of the supporting frame, and an extrusion box is fixedly mounted at the bottom of the top plate. According to the device, different types of ceramic artworks can be poured and extruded at the same time, the extrusion process is automatically completed through a machine, manual assistance is not needed, the mold is supported through the ejector pins arranged at equal intervals in the extrusion process, when the different special-shaped ceramic artworks are manufactured, an inner core of the mold can be supported according to special-shaped concave-convex positions, and the production efficiency is improved. The supporting stability is improved, the manufacturing quality of the ceramic artware is guaranteed, and the demolding condition cannot occur in the firing process.

The invention provides a novel formwork system for prefabricating an assembly type steel concrete gutter inlet, and relates to the technical field of steel concrete gutter inlet construction, the novel formwork system comprises a formwork base, a gutter inlet formwork assembly is arranged at the upper end of the formwork base, and a branch pipe preformed hole formwork assembly is arranged at the side end of the formwork base; the gutter inlet template assembly comprises a first template, a second template is arranged at one side end of the first template, and a third template is arranged at the other side end of the second template. The invention further provides a construction method of the novel formwork system for prefabricating the assembly type steel concrete gutter inlet. The modular steel formworks which can be recycled and assembled and spliced are adopted, the mounting precision is high, mounting and dismounting are easy and convenient, and the pouring requirements of gutter inlets of different sizes can be met.

The utility model relates to an ecological frame mold, and relates to the technical field of ecological frame molds. The ecological frame mold is used for manufacturing an ecological frame and comprises an outer mold mechanism and an inner mold mechanism. The sliding rails are arranged to drive the four formworks of each outer formwork mechanism, the formwork disassembling and assembling efficiency of the outer formwork mechanisms can be improved, and the construction efficiency of ecological frame manufacturing is improved; after an inner mold mechanism is installed on the bottom mold plate, a first rack and a second rack can be driven by rotating a gear bearing rod so as to drive a first pull rod and a second pull rod to move, and then the two L-shaped inner mold plates and the two fillet inner mold plates are controlled to conduct mold disassembly and mold assembly movement; and the two fillet inner templates and the two L-shaped inner templates have a certain motion starting time difference, so that the two templates do not interfere with each other when the two templates are subjected to mold removal and mold closing motion, normal operation of the mold removal work can be guaranteed, and the mold removal and mold closing efficiency of the inner mold mechanism can be effectively improved.

The batch box culvert pouring mold comprises an outer mold unit and an inner mold unit, the outer mold unit comprises a base, a bottom plate, two sets of side plates, a top plate and a rear plate, the rear plate and the bottom plate are integrally formed, the side plates are connected with the top plate and the bottom plate through telescopic rods, and the surfaces of the side plates are provided with third protrusions and U-shaped plates with fourth protrusions; the inner mold unit comprises an inner forming mold, a moving rod and a linkage plate, the linkage plate is provided with a first protrusion and a second protrusion, and a sleeving frame with a convex attaching strip is detachably fixed in an annular groove of the inner forming mold through a screw. After concrete is poured and solidified through the top plate injection groove, the moving rod drives the internal forming mold to drive the linkage plate to act, approaching positioning and separation of the side plates are achieved through linkage of the protrusions, the box culvert is moved out along with the inner mold by means of friction force of the attaching strips, and the box culvert and the inner mold can be separated by disassembling the screw. The demolding process is simplified, automatic operation is achieved, the labor intensity is reduced, the continuity, stability and forming quality of batch production are guaranteed, and the mold is suitable for a box culvert batch production scene.

The utility model relates to the field of assembly type building equipment, in particular to an automatic core-pulling mold device. The automatic core mold pulling device comprises a rack, a driving device, a positioning device and a core mold pulling device. The machine frame comprises a rectangular frame, a supporting stand column, a weight box, a first horizontal walking beam and a second horizontal walking beam. The driving device comprises a servo motor, a speed reducer, a first walking wheel and a second walking wheel. The positioning device comprises a first hydraulic cylinder, a positioning shaft, a positioning pipe and a positioning sleeve. The core mold drawing device comprises a core mold fixing frame, a drawing box body, a second hydraulic cylinder and a third hydraulic cylinder. The core mold fixing frame is formed by welding rectangular pipes, and guide rails are distributed in the core mold fixing frame in an array mode. The drawing box body is formed by welding a side plate and a vertical plate. According to the automatic core-pulling mold device, the central mold is fixed through the hydraulic device, the central mold is quickly separated from the guardrail component in cooperation with the driving device, the working intensity of personnel is relieved, and the production efficiency is improved.

The utility model discloses a bidirectionally adjustable horizontal prefabricated box culvert mold which comprises an outer mold set and an inner mold, and a pouring mold cavity is formed between the outer mold set and the inner mold. The outer die set comprises a bottom die, a first vertical die, a second vertical die and two groups of end dies; the second vertical mold is connected with the bottom mold through an adjusting part; the adjusting part is used for adjusting the distance between the first vertical mold and the second vertical mold; any group of end molds are positioned on the same side of the first vertical mold and the second vertical mold, and the end molds are respectively propped against the side surfaces of the first vertical mold and the second vertical mold; the two end molds are located on the two sides of the first vertical mold and the two sides of the second vertical mold, and the end molds are detachably connected with the first vertical mold and the second vertical mold through first quick release mechanisms correspondingly. The end mold comprises four end mold corner pieces, and every two adjacent end mold corner pieces are connected through a plurality of end mold edge pieces which are connected in sequence; the inner die comprises four inner die corner fittings, and every two adjacent inner die corner fittings are connected through a plurality of inner die edge fittings which are connected in sequence. The box culvert mold can be adjusted to be in various sizes, and the purchasing cost and the construction cost of the mold are reduced.

The utility model provides a prefabricated inspection well mould, which relates to the field of inspection well moulds and comprises a seat, an outer mould and an inner mould, a motor is mounted at the lower end of the mould seat, the upper end of the motor is connected with a rotating shaft, an annular groove is formed in the upper end of the mould seat, the inner mould is arranged at the upper end of the mould seat, and the lower end of the inner mould is connected with a bottom supporting plate. The lower end of the bottom supporting plate is connected with a rotating block, the rotating block is connected to the upper end of the rotating shaft, a supporting rod is arranged on the outer side of the rotating block and connected to the lower end of the bottom supporting plate, meanwhile, balls are connected to the lower end of the supporting rod and connected into the annular groove in a rolling mode, and the outer molds are symmetrically arranged on the outer side of the inner mold and slidably connected to the upper end of the mold base. And a liquid storage tank is mounted on the outer wall of the outer mold. The prefabricated inspection well mold solves the problems that in an existing prefabricated inspection well mold, spraying of a release agent is troublesome, meanwhile, concrete cannot be rapidly and evenly distributed in the pouring process, and the forming efficiency is reduced.