Die for prefabricated reinforced concrete beam and machining method thereof

Abstract

The invention discloses a mold for a prefabricated reinforced concrete beam and a machining method of the mold. The mold for the prefabricated reinforced concrete beam comprises a bottom plate, two side plates, two end plates and a partition, wherein the two side plates are oppositely arranged and detachably arranged on the bottom plate; the two end plates are oppositely arranged on the bottom plate, and the end plates are connected between the corresponding end parts of the two side plates; a pouring groove is formed among the bottom plate, the side plates and the end plates; a first avoiding notch is formed in the bottom of the partition, and the partition is vertically arranged and detachably arranged in the pouring groove. The machining difficulty of the prefabricated reinforced concrete beam is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building, in particular to a mold for prefabricated reinforced concrete beams and a processing method thereof. BACKGROUND

[0002] With the continuous development of building industrialization, buildings such as residential buildings and commercial buildings are usually built by pouring concrete. In general, the building includes load-bearing components (such as load-bearing beams or load-bearing walls), the height of the load-bearing components is constructed according to the height of the building, and according to the height of different floors, the load-bearing components are provided with horizontally arranged pouring beams to meet the pouring requirements of the roof.

[0003] Chinese Patent Publication No. CN119392861A discloses a prefabricated reinforced concrete beam, a building and a construction method, which processes the concrete beam in a prefabricated manner. In the prefabrication process, a prefabricated steel reinforcement frame is usually used to place the mold and then pour concrete to process it. However, in the actual processing process, on the one hand, the interval area formed by the concrete of the prefabricated reinforced concrete beam, on the other hand, the groove needs to be formed in the middle of the prefabricated reinforced concrete beam. Limited by the structure of the prefabricated reinforced concrete beam, the processing difficulty is large. In view of this, how to design a prefabricated reinforced concrete beam processing technology to reduce the processing difficulty is the technical problem to be solved by the application. SUMMARY

[0004] The technical problem to be solved by the application is to provide a mold for prefabricated reinforced concrete beams and a processing method thereof, which reduces the processing difficulty of prefabricated reinforced concrete beams.

[0005] The technical scheme provided by the application is a mold for prefabricated reinforced concrete beams, comprising: a bottom plate; two side plates, the two side plates are oppositely arranged and detachably arranged on the bottom plate; two end plates, the two end plates are oppositely arranged and arranged on the bottom plate, and the end plates are connected between the corresponding end portions of the two side plates; the bottom plate, the side plate and the end plate form a pouring groove therebetween; a mold core, the mold core extends along the length direction of the bottom plate and is arranged in the pouring groove; a partition, the bottom of the partition is provided with a first avoiding notch, and the partition is vertically arranged and detachably arranged in the pouring groove.

[0006] In an embodiment, the longitudinal section of the mold core is a trapezoidal structure, and the upper side length of the trapezoidal structure is greater than the lower side length.

[0007] In an embodiment, the mold core is further provided with a threaded through hole, and a ejection bolt is threadedly connected in the threaded through hole; the ejection bolt is configured to be screwed in the threaded through hole to eject the mold core from the pouring groove; Alternatively, the upper part of the mold core is provided with a lifting part. Alternatively, the mold core comprises a core template and a wedge-shaped pin, the core template comprises a bottom panel and two side panels, the side panels are arranged on the corresponding sides of the bottom panel, the inner flaps are arranged on the side panels, and strip-shaped holes are arranged on the inner flaps; one of the inner flaps is arranged above the other, and the two strip-shaped holes arranged above and below form an overlapping area.

[0008] In an embodiment, the partition is in a U-shaped structure as a whole, and an insertion slot is formed on the partition, and the first avoiding notch is arranged on each side of the insertion slot. One end of the mold core is located in the insertion slot, and the lower end of the ejection bolt abuts against the bottom surface of the insertion slot.

[0009] In an embodiment, the mold core comprises an air bag, and the air bag is in a strip-shaped structure.

[0010] In an embodiment, the mold core further comprises a hanging bracket, the hanging bracket is overlapped on the upper surfaces of the two side panels, and the air bag is arranged on the hanging bracket.

[0011] In an embodiment, the end plate is provided with a second avoiding notch, and the second avoiding notch is arranged opposite to the adjacent first avoiding notch.

[0012] In an embodiment, a tensioning assembly is further included; the tensioning assembly comprises a first tensioning seat, a second tensioning seat, a tensioning rod, and a tensioning nut; one end of the tensioning rod is hingedly connected to the first tensioning seat, and the other end of the tensioning rod is threadedly connected to the tensioning nut. The first tensioning seat is arranged on one of the side panels, and the second tensioning seat is arranged on the other side panel. In a tensioning state, the tensioning rod is arranged across the pouring groove, and the tensioning nut abuts against the outer surface of the second tensioning seat.

[0013] In an embodiment, the top of the second tensioning seat is provided with a mounting groove, and the tensioning rod is located in the mounting groove in a tensioning state.

[0014] In an embodiment, the side panel is further provided with a bushing. The prefabricated reinforced concrete beam mold further comprises a preformed hole assembly, the preformed hole assembly comprises a mounting seat, a plug rod and a plug pin, the mounting seat is provided with a sliding groove arranged transversely, the mounting seat is further provided with a first pin hole, the outer end of the plug rod is provided with a sliding plate, the sliding plate is provided with a second pin hole, the sliding plate is slidably arranged in the sliding groove, the plug pin is inserted through the first pin hole and the second pin hole, and the plug rod is inserted into the plug hole and extends into the pouring groove.

[0015] Another embodiment of the application also provides a method for using the prefabricated reinforced concrete beam mold. Pre-install the mold: fix the side plates on the bottom plate, place the end plate between the two side plates and fix the end plate on the bottom plate, and insert the partition into the pouring groove; Pre-install the mold: fix the side plates on the bottom plate, place the end plate between the two side plates and fix the end plate on the bottom plate, and insert the partition into the pouring groove; Pre-install the mold: fix the side plates on the bottom plate, place the end plate between the two side plates and fix the end plate on the bottom plate, and insert the partition into the pouring groove; Pour the concrete: pour the concrete into the pouring groove; Disassemble the mold: remove the mold core and the partition from the pouring groove respectively, and disassemble the side plates from the bottom plate.

[0016] Compared with the prior art, the application has the advantages and positive effects that: by placing the partition in the pouring groove, the installation hole structure of the concrete beam is formed through the partition, the first avoiding gap provided on the partition can meet the requirement of laying the steel bars of the concrete beam in the pouring groove, and the first avoiding gap can avoid the steel bars of the concrete beam; and after pouring is completed, the first avoiding gap can meet the requirement of smoothly taking out the partition from the pouring groove, and the side plates can be conveniently disassembled, so that the molded concrete beam is subjected to demolding treatment, and the processing difficulty of the prefabricated reinforced concrete beam is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative labor.

[0018] Figure 1 It is a schematic view of the assembly structure of the prefabricated reinforced concrete beam mold of the application. Figure 2 It is a schematic view of the assembly structure of the prefabricated reinforced concrete beam mold of the application. Figure 1 It is a schematic view of the assembly structure of the prefabricated reinforced concrete beam mold of the application. Figure 3 It is a schematic view of the assembly structure of the prefabricated reinforced concrete beam mold of the application. Figure 1A local enlarged view of the middle B area; Figure 4 For Figure 1 A structural view of the middle mold core; Figure 5 For Figure 1 A structural view of the middle partition; Figure 6 For Figure 1 A structural view of the middle reserved hole assembly; Figure 7 For the second assembly structure schematic view of the mold for prefabricated reinforced concrete beams in the embodiment of the application; Figure 8 For the sectional view of the mold core in another embodiment of the mold for prefabricated reinforced concrete beams.

[0019] Reference signs: 1, bottom plate; 2, side plate; 21, extension plate; 22, clamping groove; 3, end plate; 31, second avoiding notch; 4, mold core; 41, threaded through hole; 42, ejection bolt; 43, lifting part; 44, air bag; 45, hanging support; 46, core plate; 47, wedge-shaped pin; 461, bottom panel; 462, side panel; 463, inner folding plate; 464, strip-shaped hole; 5, partition; 51, first avoiding notch; 52, insertion slot; 6, tensioning assembly; 61, first tensioning seat; 62, second tensioning seat; 63, tensioning rod; 64, tensioning nut; 65, mounting groove; 7, reserved hole assembly; 71, mounting seat; 72, insertion rod; 73, insertion pin; 74, sliding plate; 75, sliding groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some embodiments of the application, not all embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0021] As Figures 1-6 shown, an embodiment of the application provides a mold for prefabricated reinforced concrete beams, comprising: a bottom plate 1; two side plates 2, the two side plates 2 are arranged oppositely and detachably arranged on the bottom plate 1; Two end plates 3 are arranged opposite each other on the base plate 1, and the end plates 3 are connected between the corresponding ends of the two side plates 2; a casting groove is formed between the base plate 1, the side plates 2 and the end plates 3; Mold core 4 extends along the length of the base plate 1 and is disposed in the casting groove; The partition 5 has a first clearance notch 51 at its bottom and is arranged vertically and detachably installed in the casting groove.

[0022] Specifically, in actual use, the base plate 1 is placed flat on the bottom surface, and the two side plates 2 are placed symmetrically opposite each other along the length of the base plate 1. The inner spacing of the side plates 2 is adjusted according to the design width of the precast reinforced concrete beam. Bolts are used to fix the bottom of the side plates 2 to the pre-set screw holes of the base plate 1. Then, the two end plates 3 are inserted into the end gaps of the two side plates 2 respectively, and bolts are used to fix the bottom of the end plates 3 to the pre-set screw holes of the base plate 1, or bolts are used to fix the side of the end plates 3 to the pre-set screw holes at the ends of the side plates 2. In this way, the initial forming of the casting groove can be completed. Then, the partition 5 is inserted into the casting groove along the length direction perpendicular to the base plate 1. The positioning pin is inserted from the outside of the side plate 2, through the side plate 2, and into the corresponding positioning hole of the partition 5 to realize the connection between the side plate 2 and the partition 5, or the fixing bolt is inserted from the outside of the side plate 2, through the side plate 2, and threaded into the threaded hole of the partition 5 to realize the connection between the side plate 2 and the partition 5.

[0023] According to the structural design of the precast reinforced concrete beam, the reinforcing bars are placed parallel to each other in the casting groove, and the stirrups are tied to the reinforcing bars with binding wire, with the stirrups extending above the casting groove. The width of the first clearance notch 51 at the bottom of the partition 5 is larger than the diameter of the reinforcing bar, so that the reinforcing bar can be located in the first clearance notch 51, ensuring that the partition 5 can be inserted into the bottom of the casting groove without interfering with the reinforcing bar. Subsequently, the mold core 4 (coated with release agent) is hoisted into the casting groove along the length of the base plate 1, and the center line of the mold core 4 is basically coincident with the center line of the casting groove. In order to facilitate the positioning of the stirrups, an extension plate 21 can also be provided on the top of the side plate 2, extending to the top of the casting groove. The extension plate 21 is provided with a slot 22 so that the stirrups can be locked in the slot 22 for positioning.

[0024] Pour concrete into the pouring groove. After pouring, vibrate with an immersion vibrator for a period of time until the concrete surface is covered with slurry and no air bubbles overflow. Then, use a scraper to smooth the top surface of the concrete, making it flush with the top surface of side plate 2.

[0025] After the pouring operation is completed, the formwork is removed after the concrete has been cured for the set time. The formwork core 4 and partition 5 are removed from the precast reinforced concrete beam, and the fixing bolts of the side plate 2 and end plate 3 are loosened. The side plate 2 and end plate 3 are then pried off the precast reinforced concrete beam with a pry bar.

[0026] By using detachable partitions 5 and mold cores 4 to cooperate in the casting and processing of precast reinforced concrete beams, the casting requirements of complex precast reinforced concrete beam structures can be met. In addition, the overall detachable structure design of the mold allows for easy disassembly of relevant components during the demolding process, thereby reducing demolding damage to the precast reinforced concrete beams, improving the yield and quality of the products, and reducing the difficulty of processing.

[0027] In one embodiment, in order to reduce concrete leakage between the partition 5 and the side plate 2 during the pouring process, the side of the partition 5 is attached to the inner wall of the side plate 2.

[0028] In one embodiment, such as Figure 4 As shown, the longitudinal section of the mold core 4 is a trapezoidal structure, and the upper side of the trapezoidal structure is longer than the lower side.

[0029] Specifically, to facilitate demolding, the longitudinal section of the mold core 4 is trapezoidal. This creates a funnel-shaped opening in the precast reinforced concrete beam after casting. The mold core 4 can then be more easily demolded from the groove structure of the precast reinforced concrete beam.

[0030] Specifically, during the mold disassembly stage, because the longitudinal section of the mold core 4 is trapezoidal and the upper side is longer than the lower side, its side forms an outward slope. When it is necessary to remove the mold core 4 from the groove structure of the precast reinforced concrete beam, pulling the trapezoidal structure of the mold core 4 upward can guide the mold core 4 to detach smoothly along the inclined direction, so as to facilitate demolding and reduce the difficulty of processing.

[0031] Furthermore, the mold core 4 is also provided with a threaded through hole 41, and an ejector bolt 42 is threadedly connected in the threaded through hole 41. The ejector bolt 42 is threadedly connected in the threaded through hole 41. The ejector bolt 42 is configured to rotate in the threaded through hole 41 to eject the mold core 4 from the casting groove.

[0032] Specifically, during the demolding process, the operator rotates the ejector bolt 42, causing the lower end of the ejector bolt 42 to move downwards. Under the upward driving force of the ejector bolt 42, the mold core 4 can be smoothly removed from the groove structure of the precast reinforced concrete beam.

[0033] During the mold disassembly stage, when it is necessary to remove the mold core 4 from the casting groove, since the solidified concrete may have a certain adhesive force with the mold core 4, the operator can use the threaded through hole 41 and the ejector bolt 42 on the mold core 4 for operation. By turning the ejector bolt 42, it is rotated in the threaded through hole 41 and gradually extended outward. As the ejector bolt 42 continues to extend, its lower end will abut against the concrete or other fixed structure in the casting groove, generating an upward pushing force, thereby pushing the mold core 4 out of the casting groove, making it easier for the mold core 4 to detach.

[0034] Tightening the ejector bolt 42 is simple and easy to perform; ordinary operators can complete the task using a wrench. Compared to using tools such as pry bars for forced disassembly, this greatly reduces the labor intensity and also improves operational safety.

[0035] Furthermore, a lifting part 43 is provided on the upper part of the mold core 4.

[0036] Specifically, the lifting part 43 can be in the form of a handle or other structure. During use, the operator can also use the lifting part 43 to apply an upward pulling force to the mold core 4 to assist in demolding. Furthermore, the lifting part 43 also facilitates the operator in moving the mold core 4.

[0037] In one embodiment, the partition 5 is U-shaped in general, and a slot 52 is formed on the partition 5. The first clearance notch 51 is arranged on both sides of the slot 52. One end of the mold core 4 is located in the slot 52, and the lower end of the ejector bolt 42 abuts against the bottom surface of the slot 52.

[0038] Specifically, the partition 5 has a U-shaped structure. This U-shaped slot 52 allows the mold core 4 to pass through. Simultaneously, the lower end of the ejector bolt 42 abuts against the bottom surface of the slot 52. During mold disassembly, when the ejector bolt 42 is tightened, the bottom surface of the slot 52 provides stable support for it. Compared to the ejector bolt 42 directly abutting against the concrete, this design allows for a more direct and uniform transmission of the pushing force, more effectively ejecting the mold core 4 from the pouring groove and preventing damage to the concrete during the pushing process.

[0039] Meanwhile, the slot 52 formed by the partition 5 can further support the mold core 4 to ensure the accuracy of its installation position when the mold core 4 is placed in the casting groove.

[0040] In another embodiment, such as Figure 8As shown, the mold core 4 includes a core template 46 and a wedge pin 47. The core template 46 includes a bottom panel 461 and two side panels 462. The side panels 463 are disposed on the corresponding side of the bottom panel 461. The side panels 462 are provided with inner folding plates 463, and the inner folding plates 463 are provided with strip holes 464. One of the inner folding plates 463 is disposed above the other inner folding plate 463, and the two strip holes 464 arranged vertically opposite each other form an overlapping area.

[0041] Specifically, the core template 46 can be formed by bending sheet metal, thus allowing the side panel 462 to undergo relative elastic deformation relative to the bottom panel 461. During pouring, wedge pins 47 are inserted into the two corresponding slots 464, causing the inner folded edge 463 to push the side panel 462 outward. When demolding is performed after pouring, the wedge pins 47 are pulled out, and the side panel 462 can detach from the concrete surface by restoring its elastic deformation, thus facilitating demolding.

[0042] In another embodiment, such as Figure 7 As shown, the mold core 4 includes an air bladder 44, which has a strip-shaped structure.

[0043] Specifically, during the mold assembly stage, the mold core 4 using the airbag 44 is in a contracted state when not inflated. Its small size and soft texture allow it to be easily placed into the casting groove. Operators can quickly complete the placement without precise positioning. After the airbag 44 is positioned via the slot 52 of the partition 5, it can be inflated. The airbag 44 expands to its designed size and automatically fits into the slot 52 of the partition 5, achieving precise positioning.

[0044] Furthermore, during the concrete pouring stage, the airbag 44 exhibits a certain degree of elasticity under air pressure, allowing it to slightly deform with the concrete injection pressure and fully conform to the concrete. During the mold dismantling stage, simply releasing the gas inside the airbag 44 via the exhaust valve causes it to quickly contract and detach from the groove wall of the concrete beam, making it easy to remove. Compared to a rigid mold core 4, the airbag mold core 4 eliminates the need for auxiliary tools such as ejector bolts 42, avoiding scraping or squeezing of the concrete groove edges during demolding. Moreover, using the airbag 44 as the mold core 4 frees the precast reinforced concrete beam's groove structure from the need for a flared design due to demolding constraints, resulting in a more diverse groove structure to meet the requirements of different building applications.

[0045] The airbag 44 can be made of wear-resistant rubber or polymer materials, which are soft and highly impact-resistant, resulting in significantly lower damage from collisions with other components compared to the rigid mold core 4. Furthermore, the airbag 44 is lighter than a steel mold core 4 of the same size, eliminating the need for hoisting equipment during installation and disassembly, allowing for single-person operation and reducing labor intensity. Simultaneously, it avoids the risk of components falling or colliding during the disassembly of the rigid mold core 4, thus improving construction safety.

[0046] Furthermore, the mold core 4 also includes a suspension bracket 45, which overlaps the upper surfaces of the two side plates 2, and the airbag 44 is disposed on the suspension bracket 45.

[0047] Specifically, the operator can precisely control the position of the airbag 44 within the casting groove by adjusting the overlap position of the suspension bracket 45 on the side plate 2. The suspension bracket 45 is fixedly installed on the top of the side plate 2 by bolts. The rigid structure of the suspension bracket 45 can prevent the airbag 44 from shifting due to uneven force when it is inflated. The precise docking of the airbag 44 and the slot 52 can be ensured by fixing the position of the suspension bracket 45.

[0048] The two ends of the suspension bracket 45 can be attached to the opposite side plate 2. The suspension bracket 45 is equipped with ropes to support the airbag 44.

[0049] In one embodiment, the end plate 3 is provided with a second clearance notch 31, which is arranged opposite to the adjacent first clearance notch 51.

[0050] Specifically, during the precasting process of the precast reinforced concrete beam, the second clearance notch 31 on the end plate 3 is arranged opposite to the first clearance notch 51 of the adjacent partition 5, forming a continuous channel for the reinforcing bars to pass through. For example, the reinforcing bars can pass through the second clearance notch 31 of the end plate 3 and the first clearance notch 51 of the partition 5 in sequence, achieving continuous arrangement of the reinforcing bars in the casting groove and avoiding the need for cutting the reinforcing bars during operation due to obstruction by the end plate 3. The size of the second clearance notch 31 is larger than the diameter of the reinforcing bar, and its height is consistent with that of the first clearance notch 51, ensuring that the reinforcing bars pass through without obstruction.

[0051] In one embodiment, a tensioning assembly 6 is further included; the tensioning assembly 6 includes a first tensioning seat 61, a second tensioning seat 62, a tensioning rod 63, and a tensioning nut 64; one end of the tensioning rod 63 is hinged to the first tensioning seat 61, and the other end of the tensioning rod 63 is threaded to the tensioning nut 64; The first tensioning seat 61 is disposed on one of the side plates 2, and the second tensioning seat 62 is disposed on the other side plate 2; The tensioning assembly 6 is configured such that, in the tensioned state, the tensioning rod 63 spans the casting groove and the tensioning nut 64 abuts against the outer surface of the second tensioning seat 62.

[0052] Specifically, during the concrete pouring stage, after the concrete is injected into the pouring groove, it exerts outward lateral pressure on the two side plates 2, making them prone to outward tilting and deformation. At this time, the tensioning assembly 6 is fixed to one side plate 2 via the first tensioning seat 61 and the second tensioning seat 62, and the tensioning rod 63 spans the pouring groove. Tightening the tensioning nut 64 generates axial tension in the tensioning rod 63, pulling the two side plates 2 inward. This tension can counteract the lateral pressure of the concrete, ensuring that the side plates 2 remain vertical and preventing deviations in the cross-sectional dimensions of the precast beam due to deformation of the side plates 2.

[0053] Furthermore, the top of the second tensioning seat 62 is provided with a mounting groove 65, and the tensioning rod 63 is located in the mounting groove 65 in the tensioned state.

[0054] Specifically, before pouring, the connecting rod is rotated so that the end of the tension rod 63 connected to the tension nut 64 is located in the mounting groove 65. In this way, the tension nut 64 is arranged outside the second tension seat 62, and the two side plates 2 are tightened by rotating the tension nut 64 through the tension rod 63.

[0055] In one embodiment, the side plate 2 is further provided with an insertion hole; The mold for the precast reinforced concrete beam also includes a pre-drilled hole assembly 7, which includes a mounting base 71, a rod 72, and a pin 73. The mounting base 71 is provided with a transversely extending groove 75 and a first pin hole. The outer end of the rod 72 is provided with a sliding plate 74, and the sliding plate 74 is provided with a second pin hole. The sliding plate 74 is slidably disposed in the groove 75. The pin 73 is inserted through the first pin hole and the second pin hole. The rod 72 is inserted into the insertion hole and extends into the casting groove.

[0056] Specifically, for cast-in-place precast reinforced concrete beams, there is a requirement for hanging auxiliary components on the side walls of the beam during use (e.g., installation brackets for pipelines). To address this, a pre-drilled hole assembly 7 is added. A rod 72 is inserted into the insertion hole of the side plate 2 and extends into the casting groove. After concrete is poured into the casting groove and solidifies, the rod 72 is removed from the insertion hole, thus forming a pre-drilled hole on the side of the precast reinforced concrete beam that matches the shape of the rod 72. These pre-drilled holes can be used to connect the precast beam to other installation brackets. The pre-drilled hole assembly 7 allows for the formation of pre-drilled holes during casting, eliminating the need for secondary drilling on the concrete beam and avoiding damage to the beam structure.

[0057] Furthermore, the slide groove 75 on the mounting base 71 extends laterally, and the sliding plate 74 at the outer end of the insert rod 72 is slidably disposed in the slide groove 75. By adjusting the position of the sliding plate 74 within the slide groove 75, the insert rod 72 can be moved laterally, thereby changing the lateral position of the insert rod 72 extending into the casting groove, i.e., adjusting the lateral position of the reserved hole on the side of the concrete beam. When the sliding plate 74 slides to the target position, the pin 73 is inserted through and into the first pin hole of the mounting base 71 and the second pin hole of the sliding plate 74 to fix the position of the insert rod 72 and ensure the accuracy of the reserved hole position. This design can meet the diverse design requirements for the reserved hole position in different projects and improve the versatility of the mold.

[0058] Another embodiment of this application also provides a method for using the above-mentioned mold for precast reinforced concrete beams, including: Pre-installed mold: Fix the side plate 2 on the base plate 1, place the end plate 3 between the two side plates 2 and fix the end plate 3 on the base plate 1, and insert the partition 5 into the casting groove; Precast frame: The reinforcing bars are placed in the casting groove and passed through the first clearance notch 51, and stirrups are tied to the reinforcing bars; Final assembly mold: Place mold core 4 in the casting groove; Pouring concrete: Pouring concrete into the pouring groove; Disassemble the mold: Remove the mold core 4 and the partition 5 from the casting groove respectively, and remove the side plate 2 from the bottom plate 1.

[0059] Specifically, after the mold is pre-assembled to form the casting groove, the reinforcing bars can be inserted into the casting groove. The reinforcing bars inserted into the casting groove will pass through the first clearance notch 51 formed by the partitions 5. At the same time, the reinforcing bars are limited by the partitions 5 in the first clearance notch 51, so that the reinforcing bars are limited by the partitions 5 during the binding of stirrups, thereby improving the binding accuracy. After the prefabrication frame is completed, the mold core 4 is placed in, and the casting operation can be carried out. Furthermore, after the casting is completed and the concrete has solidified, the mold core 4 and partitions 5 can be easily removed from the casting groove for easy demolding. This not only meets the complex structural processing requirements of precast reinforced concrete beams, but also adapts to industrialized mass production, providing reliable process support for the construction industrialization.

[0060] Compared with the prior art, the advantages and positive effects of this application are as follows: By placing a partition in the casting groove, the installation opening structure of the concrete beam is formed through the partition. The first clearance notch on the partition can also meet the requirements of the reinforcement of the concrete beam in the casting groove, so as to avoid the reinforcement of the concrete beam through the first clearance notch. In addition, the mold core is set in the casting groove, so that a groove structure extending along the length direction can be formed on the concrete beam during the casting process. After the casting is completed, the first clearance notch can meet the requirement of smoothly removing the partition from the casting groove. The mold core and the side plate can also be easily disassembled, so that the cast concrete beam can be demolded, thereby reducing the processing difficulty of precast reinforced concrete beams.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A mold for precast reinforced concrete beams, characterized in that, The utility model relates to a prefabricated reinforced concrete beam mold, including: A bottom plate; Two side plates oppositely arranged and detachably arranged on the bottom plate; Two end plates oppositely arranged and arranged on the bottom plate, the end plate is connected between the corresponding end of two side plates, and the bottom plate, the side plate and the end plate form a pouring groove; A partition, the bottom of the partition is provided with a first avoiding gap, and the partition is vertically arranged and detachably arranged in the pouring groove.

2. The mold for precast reinforced concrete beams according to claim 1, characterized in that, Also including a mold core; The mold core extends along the length direction of the bottom plate and is arranged in the pouring groove.

3. The mold for precast reinforced concrete beams according to claim 2, characterized in that, The longitudinal section of the mold core is trapezoidal structure, and the length of the upper side of the trapezoidal structure is greater than the length of the lower side.

4. The mold for precast reinforced concrete beams according to claim 2, characterized in that, The mold core is further provided with a threaded through hole, a ejection bolt is threadedly connected in the threaded through hole, and the ejection bolt is threadedly connected in the threaded through hole; the ejection bolt is configured to rotate the ejection bolt in the threaded through hole to eject the mold core from the pouring groove.

5. The mold for precast reinforced concrete beams according to claim 4, characterized in that, The partition is in whole U-shaped structure, the partition is formed with a slot, and the two sides of the slot are respectively arranged with the first avoiding gap; One end of the mold core is located in the slot, and the lower end of the ejection bolt abuts against the groove bottom surface of the slot.

6. The mold for precast reinforced concrete beams according to claim 2, characterized in that, The mold core includes a core mold plate and a wedge-shaped pin, the core mold plate includes a bottom panel and two side panels, the side panels are arranged on the corresponding side of the bottom panel, the side panels are provided with inner flaps, and the inner flaps are provided with strip-shaped holes; one of the inner flaps is arranged above the other inner flap, and the two strip-shaped holes oppositely arranged up and down form an overlapping area.

7. The mold for precast reinforced concrete beams according to claim 2, characterized in that, The upper part of the mold core is provided with a lifting part.

8. The mold for precast reinforced concrete beams according to claim 2, characterized in that, The mold core includes an air bag, and the air bag is in strip-shaped structure.

9. The mold for precast reinforced concrete beams according to claim 8, characterized in that, The mold core further includes a hanging bracket, the hanging bracket is overlapped on the upper surfaces of the two side plates, and the air bag is arranged on the hanging bracket.

10. A mould for precast reinforced concrete beams according to any one of claims 1-9, characterised in that, The end plate is provided with a second avoiding gap, and the second avoiding gap is oppositely arranged with the adjacent first avoiding gap.

11. A mould for precast reinforced concrete beams according to any one of claims 1-9, characterised in that Further including a tensioning assembly; the tensioning assembly includes a first tensioning seat, a second tensioning seat, a tensioning rod and a tensioning nut; one end of the tensioning rod is hinged on the first tensioning seat, and the other end of the tensioning rod is threadedly connected with the tensioning nut; The first tensioning seat is arranged on one of the side plates, and the second tensioning seat is arranged on the other side plate; The tensioning assembly is configured to cross the pouring groove in the tensioning state, and the tensioning nut abuts against the outer surface of the second tensioning seat.

12. A mould for precast reinforced concrete beams according to any one of claims 1-9, characterised in that The side plate is further provided with a insertion hole; The prefabricated reinforced concrete beam mold further includes a reserved hole assembly, the reserved hole assembly includes a mounting seat, an insertion rod and a plug pin, the mounting seat is provided with a sliding groove extending transversely, the mounting seat is further provided with a first pin hole, the outer end of the insertion rod is provided with a sliding plate, the sliding plate is provided with a second pin hole, the sliding plate is slidably arranged in the sliding groove, the plug pin is inserted through the first pin hole and the second pin hole, and the insertion rod is inserted in the insertion hole and extends into the pouring groove.

13. A method of using a form for precast reinforced concrete beams according to any one of claims 1-12, characterized in that, Including: Pre-assemble the mold: Fix the side plates on the base plate, place the end plate between the two side plates and fix the end plate on the base plate, and insert the partition into the pouring groove; Pre-assemble the framework: Place the steel bars in the pouring groove and pass through the first avoiding gap, and bind the stirrups on the steel bars; Assemble the mold: Place the mold core in the pouring groove; Pour the concrete: Pour the concrete into the pouring groove; Disassemble the mold: Take out the mold core and the partition from the pouring groove respectively, and disassemble the side plates from the base plate.

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