Mould for precast reinforced concrete beams

Abstract

The application discloses a prefabricated reinforced concrete beam mold. The prefabricated reinforced concrete beam mold comprises a bottom plate, two side plates, two end plates and a partition, the two side plates are oppositely arranged and detachably arranged on the bottom plate, the two end plates are oppositely arranged and arranged on the bottom plate, the end plates are connected between the corresponding end portions of the two side plates, a pouring groove is formed between the bottom plate, the side plates and the end plates, the partition is provided with a first avoiding gap at the bottom, the partition is located in the pouring groove, and the partition is detachably arranged on the side plate. The processing difficulty of the prefabricated reinforced concrete beam is reduced.

Description

Technical Field

[0001] This application relates to the field of building technology, and in particular to a mold for precast reinforced concrete beams. Background Technology

[0002] With the continuous development of the construction industry, residential buildings, commercial buildings, and other structures are typically constructed using cast-in-place concrete. Generally, a building includes load-bearing components (such as load-bearing beams or walls), the height of which is determined by the building's overall height. Furthermore, depending on the height of different floors, horizontally arranged cast-in-place beams are installed on the load-bearing components to meet the requirements for constructing the roof.

[0003] Chinese Patent Publication No. CN119392861A discloses a prefabricated reinforced concrete beam, a building, and a construction method. The method involves prefabricating the concrete beam, typically by pre-compiling a steel reinforcement frame, placing the frame in a mold, and then pouring concrete. However, in actual processing, the prefabricated reinforced concrete beam has gaps formed by the concrete, and a groove needs to be formed in the middle. These limitations, stemming from the beam's inherent structure, make processing difficult. Therefore, designing a technology that reduces the processing difficulty of prefabricated reinforced concrete beams is the technical problem this application aims to solve. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a mold for precast reinforced concrete beams, thereby reducing the processing difficulty of precast reinforced concrete beams.

[0005] The technical solution provided in this application is a mold for precast reinforced concrete beams, comprising: Base plate; Two side plates, the two side plates being arranged opposite to each other and detachably mounted on the base plate; Two end plates are arranged opposite each other on the base plate, and the end plates are connected between the corresponding ends of the two side plates; a casting groove is formed between the base plate, the side plates and the end plates; A mold core, which extends along the length of the base plate and is disposed in the casting groove; The partition has a first clearance notch at its bottom, is located in a casting groove, and is detachably mounted on the side plate.

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

[0007] In one embodiment, the mold core is further provided with a threaded through hole, and an ejector bolt is threadedly connected to the threaded through hole. The ejector bolt is threadedly connected to the threaded through hole. The ejector bolt is configured to rotate by turning the ejector bolt in the threaded through hole to eject the mold core from the casting groove. And / or, the upper part of the mold core is provided with a lifting part; Alternatively, the mold core includes a core template and a wedge pin. The core template includes a bottom panel and two side panels. The side panels are disposed on the corresponding side of the bottom panel. The side panels are provided with inner folding plates, and the inner folding plates are provided with strip holes. One of the inner folding plates is disposed above the other inner folding plate, and the two strip holes arranged vertically opposite each other form an overlapping area.

[0008] In one embodiment, the partition is U-shaped in shape, and a slot is formed on the partition. The first clearance notch is arranged on both sides of the slot. One end of the mold core is located in the slot, and the lower end of the ejector bolt abuts against the bottom surface of the slot.

[0009] In one embodiment, the mold core includes an air bladder, which has a strip-shaped structure.

[0010] In one embodiment, the mold core further includes a suspension bracket, which overlaps the upper surfaces of the two side plates, and the airbag is disposed on the suspension bracket.

[0011] In one embodiment, a second clearance notch is provided on the end plate, and the second clearance notch is arranged opposite to the adjacent first clearance notch.

[0012] In one embodiment, a tensioning assembly is further included; 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 to the first tensioning seat, and the other end of the tensioning rod is threaded to the tensioning nut; The first tensioning seat is disposed on one of the side plates, and the second tensioning seat is disposed on the other side plate; The tensioning assembly is configured such that, in the tensioned state, the tensioning rod spans the casting groove and the tensioning nut abuts against the outer surface of the second tensioning seat.

[0013] In one embodiment, the top of the second tensioning seat is provided with a mounting groove, and the tensioning rod is located in the mounting groove when it is tensioned.

[0014] In one embodiment, the side plate is further provided with an insertion hole; The mold for the precast reinforced concrete beam also includes a pre-drilled hole assembly, which includes a mounting base, a rod, and a pin. The mounting base is provided with a transversely extending groove and a first pin hole. The outer end of the rod is provided with a sliding plate, and the sliding plate is provided with a second pin hole. The sliding plate is slidably disposed in the groove. The pin is inserted through the first pin hole and the second pin hole. The rod is inserted into the insertion hole and extends into the casting groove.

[0015] 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. Furthermore, after the casting is completed, the first clearance notch can allow the partition to be smoothly removed from the casting groove, 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. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is one of the assembly structure schematic diagrams of the mold for precast reinforced concrete beams in this application; Figure 2 for Figure 1 A magnified view of a portion of region A in the middle; Figure 3 for Figure 1 A magnified view of a portion of region B in the middle; Figure 4 for Figure 1 Schematic diagram of the middle mold core; Figure 5 for Figure 1 Schematic diagram of the central partition; Figure 6 for Figure 1 Schematic diagram of the pre-drilled hole assembly; Figure 7 This is the second schematic diagram of the assembly structure of the mold for precast reinforced concrete beams in this application; Figure 8 This is a cross-sectional view of the mold core in another embodiment of the mold for precast reinforced concrete beams in this application.

[0018] Figure label: 1. Base plate; 2. Side panel; 21. Extension plate; 22. Slot; 3. End plate; 31. Second clearance notch; 4. Mold core; 41. Threaded through hole; 42. Ejector bolt; 43. Lifting part; 44. Airbag; 45. Suspension bracket; 46. Core template; 47. Wedge pin; 461. Bottom panel; 462. Side panel; 463. Inner folding plate; 464. Strip hole; 5. Partition; 51. First clearance notch; 52. Slot; 6. Tensioning assembly; 61. First tensioning seat; 62. Second tensioning seat; 63. Tensioning rod; 64. Tensioning nut; 65. Mounting slot; 7. Pre-drilled hole assembly; 71. Mounting base; 72. Insert rod; 73. Pin; 74. Slide plate; 75. Slide groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] like Figures 1-6 As shown, one embodiment of this application provides a mold for precast reinforced concrete beams, comprising: Base plate 1; Two side plates 2 are arranged opposite to each other and detachably mounted on the base 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, is vertically arranged in the casting groove, and is detachably mounted on the side plate 2.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Furthermore, a lifting part 43 is provided on the upper part of the mold core 4.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] In another embodiment, such as Figure 8 As 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.

[0040] 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.

[0041] In another embodiment, such as Figure 7As shown, the mold core 4 includes an air bladder 44, which has a strip-shaped structure.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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, include: Base plate; Two side plates, the two side plates being arranged opposite to each other and detachably mounted on the base plate; Two end plates are arranged opposite each other on the base plate, and the end plates are connected between the corresponding ends of the two side plates; a casting groove is formed between the base plate, the side plates and the end plates; The partition has a first clearance notch at its bottom, is located in a casting groove, and is detachably mounted on the side plate.

2. The mold for precast reinforced concrete beams according to claim 1, characterized in that, It also includes the mold core; The mold core extends along the length of the base plate and is disposed in the casting groove.

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

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

5. The mold for precast reinforced concrete beams according to claim 4, characterized in that, The partition is U-shaped in shape, and a slot is formed on the partition. The first clearance notch is arranged on both sides of the slot. One end of the mold core is located in the slot, and the lower end of the ejector bolt abuts against the 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 template and a wedge pin. The core template includes a bottom panel and two side panels. The side panels are disposed on the corresponding side of the bottom panel. The side panels are provided with inner folding plates, and the inner folding plates are provided with strip holes. One of the inner folding plates is disposed above the other inner folding plate, and the two strip holes arranged vertically opposite each other 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 bladder, which has a strip-shaped structure.

9. The mold for precast reinforced concrete beams according to claim 8, characterized in that, The mold core also includes a suspension bracket, which overlaps the upper surfaces of the two side plates, and the airbag is disposed on the suspension 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 clearance notch, which is arranged opposite to the adjacent first clearance notch.

11. A mould for precast reinforced concrete beams according to any one of claims 1-9, characterised in that, It also includes 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 to the first tensioning seat, and the other end of the tensioning rod is threaded to the tensioning nut; The first tensioning seat is disposed on one of the side plates, and the second tensioning seat is disposed on the other side plate; The tensioning assembly is configured such that, in the tensioned state, the tensioning rod spans the casting groove and the tensioning nut abuts against the outer surface of the second tensioning seat.

12. The mold for precast reinforced concrete beams according to claim 11, characterized in that, The top of the second tensioning seat is provided with a mounting groove, and the tensioning rod is located in the mounting groove when it is tensioned.

13. A mould for precast reinforced concrete beams according to any one of claims 1-9, characterised in that The side panel is also provided with insertion holes; The mold for the precast reinforced concrete beam also includes a pre-drilled hole assembly, which includes a mounting base, a rod, and a pin. The mounting base is provided with a transversely extending groove and a first pin hole. The outer end of the rod is provided with a sliding plate, and the sliding plate is provided with a second pin hole. The sliding plate is slidably disposed in the groove. The pin is inserted through the first pin hole and the second pin hole. The rod is inserted into the insertion hole and extends into the casting groove.

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