A support column-free beam joint pouring mold

Abstract

The application discloses a kind of free support column beam joint pouring mould, it is set on column cap, the column cap is set with multiple beam bodies, comprising: fixed shaft, vertically detachable connection is in column cap, and it is arranged in the included angle range between two adjacent beam bodies;Two baffle, hinged on the same fixed shaft, the end elastic expansion is provided with telescopic plate;Limiting component, for limiting baffle rotation around fixed shaft.The application is by being provided with rotatable baffle, fixed shaft is connected in column cap, then baffle is rotated, with the help of telescopic plate end and beam body outer wall, whereby can form pouring space, again by limiting component limit baffle rotation, whereby make pouring space stable, can be convenient to pour concrete to bury column cap upside and beam body end between steel bar interlaced formed node, again after concrete solidification to form column beam node, at this time, again cancel the limit of limiting component to baffle rotation, baffle can be quickly demoulded by rotating.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated buildings, in particular to a support-free column-beam joint pouring mold. BACKGROUND

[0002] Prefabricated buildings are buildings that are assembled on site after the building components are prefabricated in factories. The key technology of prefabricated concrete structures is the joint construction technology between components. In the construction of prefabricated beam joints of existing prefabricated buildings, traditional joint molds are usually fixed and spliced using wooden molds, and then concrete is poured. However, wooden molds have the problems of low strength, easy bending and deformation, and easy cracking due to wet expansion in rainy weather.

[0003] In view of the above problems, patent document CN219011927U disclosed a special-shaped beam-column joint adjustable mold on May 12, 2023. The technical scheme includes: a mold group and a column cap, the mold group includes two molds, the rear end face of each mold is fixed with a back ridge, the two back ridges are connected by a hinge structure, and the mold group has a "I" shape with two parallel molds and an "L" shape with a right angle between the two molds. A plurality of mold groups are prefabricated, and the number of mold groups is selected according to the actual situation. The mold group can be switched between the "I" shape and the "L" shape. The multiple mold groups can form a node outer edge and be arranged on the column cap to form a space for convenient concrete pouring. The prefabricated beam is fixed between the mold groups, and the concrete is fixed with the prefabricated beam after cooling. The entire mold is composed of multiple standardized mold groups and column caps, can be recycled, has high adjustability, is suitable for multiple node requirements of different shapes and sizes, and has high reliability.

[0004] The existing technology of the above-mentioned patent solves the problems of wooden molds by using a new mold setting instead of traditional wooden molds. However, the installation and disassembly method of the mold group included in the patent is still cumbersome. Therefore, there is an urgent need for a support-free column-beam joint pouring mold to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a support-free column-beam joint pouring mold to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A support-free column-beam joint pouring mold is arranged on a column cap, and a plurality of beam bodies are arranged on the column cap. The support-free column-beam joint pouring mold comprises: a fixed shaft which is vertically detachably connected to the column cap and arranged within the included angle range between two adjacent beam bodies; two baffles which are hingedly connected to the same fixed shaft and have elastic expansion plates arranged at the ends thereof; and a limiting assembly for limiting the rotation of the baffles around the fixed shaft.

[0008] Preferably, the column cap is provided with a through hole matched with the fixed shaft, and a fastening bolt is screwed to the lower end of the fixed shaft and penetrates the through hole.

[0009] Preferably, the lower end of the fixed shaft is fixedly provided with a function box, and the upper surface of the column cap is provided with a groove matched with the function box, and the function box is embedded in the groove to limit the axial rotation of the fixed shaft.

[0010] Preferably, the function box is provided with a linkage bin, and the linkage bin is provided with a linkage assembly for synchronously and reversely rotating two baffles.

[0011] Preferably, the linkage assembly comprises a first bevel gear rotatably arranged in the linkage bin, and two second bevel gears are in meshing connection with the first bevel gear and are oppositely arranged, and the two second bevel gears are coaxially connected with the lower ends of the rotation shafts of the two baffles.

[0012] Preferably, the function box is provided with a limiting bin, and a roller is rotatably arranged in the limiting bin, and the first bevel gear is coaxially fixedly connected with a synchronous rod rotatably arranged in the limiting bin, and the synchronous rod is synchronously rotatably connected with the roller, and the limiting assembly is used for limiting the rotation of the roller.

[0013] Preferably, the limiting assembly comprises a sliding groove formed in the top surface of the limiting bin, and a limiting piece is movably arranged in the sliding groove, and a first elastic piece is connected between the upper end of the limiting piece and the inner wall of the sliding groove, and a limiting groove matched with the limiting piece is formed in the roller.

[0014] Preferably, the roller is provided with a central hole matched with the synchronous rod, and a sliding piece is fixedly arranged on the inner wall of the central hole, and the synchronous rod is provided with a sliding groove matched with the sliding piece, and a second elastic piece is arranged between the roller close to the first bevel gear and the inner wall of the limiting bin, and the other side of the roller is connected with an operating rod movably penetrating the function box.

[0015] Preferably, the outer edge of the roller and the lower end of the limiting piece are wedge-shaped extrusion matched.

[0016] Preferably, the sliding groove is provided in a spiral shape, and a plug is detachably arranged on the operating rod.

[0017] In the above technical solution, the present application has the following advantages:

[0018] The support column-beam joint pouring mold sets the rotatable baffle, after the lap joint of the beam body on one end on the column cap, connects the fixed shaft on the column cap, then rotates the baffle, and the outer wall of the beam body is abutted by the end of the telescopic plate, so that the horizontal direction closed pouring space is formed on the column cap, the baffle is limited to rotate through the limiting assembly, and the telescopic plate also keeps the extension length due to the abutment of the beam body, so that the pouring space is stable, the concrete can be conveniently poured to bury the node formed by the steel bars intersecting between the upper side of the column cap and the end of the beam body, and then the concrete is solidified to form the column-beam joint, at this time, the limiting of the baffle rotation by the limiting assembly is cancelled, the baffle can be quickly demoulded by rotating, and then the fixed shaft is detached from the column cap, so that the mold recycling can be completed, so that the mold can be used repeatedly.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not intended to limit the disclosure.

[0020] This application file provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0022] Figure 1 The overall structure schematic diagram provided for the embodiments of the present application;

[0023] Figure 2 The structure schematic diagram of the column cap provided for the embodiments of the present application;

[0024] Figure 3 The structure schematic diagram of the mold provided for the embodiments of the present application;

[0025] Figure 4 The front view cross-sectional structure schematic diagram provided for the embodiments of the present application;

[0026] Figure 5 The structure schematic diagram provided for the embodiments of the present application; Figure 4 The enlarged structure schematic diagram of A in the middle;

[0027] Figure 6 The structure schematic diagram of the synchronous rod provided for the embodiments of the present application;

[0028] Figure 7 The top view structure schematic diagram provided for the embodiments of the present application.

[0029] EXPLANATION OF REFERENCE NUMERALS:

[0030] 1, column cap; 2, beam body; 3, fixed shaft; 4, baffle; 5, expansion plate; 6, perforation; 7, fastening bolt; 8, plug; 9, groove; 10, function box; 11, linkage bin; 12, first bevel gear; 13, second bevel gear; 14, limiting bin; 15, roller; 16, synchronization rod; 17, sliding groove; 18, limiting piece; 19, first elastic piece; 20, limiting groove; 21, center hole; 22, sliding piece; 23, sliding groove; 24, second elastic piece; 25, operating rod. DETAILED DESCRIPTION

[0031] To make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0032] Please refer to Figures 1-7 The column cap 1 is provided with a plurality of beam bodies 2, and the column cap 1 is provided with a plurality of beam bodies 2. The fixed shaft 3 is vertically detachably connected to the column cap 1 and is arranged in the included angle range between the adjacent two beam bodies 2. Two baffles 4 are hinged to the same fixed shaft 3, and the end portion of the baffle 4 is provided with an expansion plate 5 in an elastic expansion manner. The limiting assembly is used to limit the rotation of the baffle 4 around the fixed shaft 3.

[0033] Specifically, the column cap 1 is a concrete structure on the upper end of the concrete column, preferably rectangular, and protrudes in the horizontal direction to the range of each side surface of the concrete column; the upper surface of the column cap 1 protrudes a plurality of vertical steel bars, which are distributed in a rectangular track in the horizontal direction; the part of the upper surface of the column cap 1 outside the rectangular range surrounded by the vertical steel bars is used to lap the beam body 2; four beam bodies 2 can be lapped on the column cap 1, and the four beam bodies 2 are usually arranged in a cross shape; the end of the beam body 2 protrudes a plurality of horizontal steel bars, which extend to the middle of the column cap 1, and the end of the horizontal steel bar is bent and arranged; the steel bars at the ends of the two beam bodies 2 that are collinear and opposite are arranged staggered in the horizontal direction, and the end steel bars of the two groups of beam bodies 2 in different directions are arranged staggered in height; the fixed shaft 3 is arranged close to the corner of the column cap 1, and the fixed shaft 3 is preferably four, arranged in the included angle between the adjacent four beam bodies 2; the baffle 4 is vertically arranged, the lower end is attached to the upper surface of the column cap 1, and the upper end height matches the column-beam joint height formed by subsequent concrete pouring; the baffle 4 can be moved into or out of the range covered upward on the upper surface of the column cap 1 by rotating; the baffle 4 is composed of two layers of plates, and the inside is left with a cavity for the movement of the expansion plate 5, a guide rod is fixedly arranged in the cavity, a guide groove matched with the guide rod is opened on the expansion plate 5, a spring is sleeved on the guide rod, and the two ends of the spring are respectively abutted with the expansion plate 5 and the inner wall of the cavity; the expansion plate 5 is extended or retracted along the extension direction of the end of the baffle 4, that is, the expansion plate 5 moves horizontally, and the upper and lower end faces of the expansion plate 5 are flush with the upper and lower end faces of the baffle 4; the limiting assembly limits the rotation of the baffle 4 when the baffle 4 is in the range of the upper surface of the column cap 1 and just has the expansion plate 5 vertically abutting against the side surface of the beam body 2, at this time, the expansion plate 5 is kept in an elastic contraction state under the abutting action of the beam body 2, and the end of the expansion plate 5 is closely abutted against the side wall of the beam body 2, so that the part in the range of the included angle between the two adjacent beam bodies 2 and in the range of the upper surface of the column cap 1 is surrounded by the two groups of baffles 4 and the expansion plate 5 on the same fixed shaft 3, then under the surrounding action of the groups of baffles 4 and the expansion plate 5 on the plurality of fixed shafts 3, a horizontal direction closed pouring space can be surrounded on the upper surface of the column cap 1. In practical use, after the beam body 2 is lapped on one end of the column cap 1, the fixed shaft 3 is connected to the column cap 1, then the baffle 4 is rotated, the expansion plate 5 is rotated to vertically abut against the side wall of the corresponding beam body 2, the rotation of the baffle 4 is limited by the limiting assembly, thereby a horizontal direction closed pouring space can be surrounded on the column cap 1, the expansion plate 5 is also kept in an extended length due to abutting against the beam body 2, so that the pouring space is stable, and it is convenient to pour concrete to bury the joint formed by the steel bars staggered between the upper side of the column cap 1 and the end of the beam body 2, then after the concrete is solidified to form a column-beam joint, the limitation of the rotation of the baffle 4 by the limiting assembly is cancelled, the baffle 4 can be quickly demoulded by rotating, then the fixed shaft 3 is detached from the column cap 1, and the mold is recycled, so that it is convenient to use repeatedly.

[0034] Compared with the prior art, the column-beam joint pouring mold without support column proposed by the embodiment of the application can form a horizontally closed pouring space on the column cap 1 by setting a rotatable baffle 4, connecting a fixed shaft 3 to the column cap 1 after the beam body 2 is lapped on one end of the column cap 1, and rotating the baffle 4 by abutting the end of an extension plate 5 against the outer wall of the beam body 2. The pouring space is stabilized by limiting the rotation of the baffle 4 through a limiting assembly and the extension plate 5 also maintains the length of the extension by abutting the beam body 2, so that the pouring space is convenient for pouring concrete to bury the joint formed by the steel bars intersecting between the upper side of the column cap 1 and the end of the beam body 2, and then the concrete is solidified to form a column-beam joint. At this time, the limitation of the rotation of the baffle 4 by the limiting assembly is cancelled, the baffle 4 can be quickly demoulded by rotating, and then the fixed shaft 3 is detached from the column cap 1 to complete the recovery of the mold, so that the mold can be used repeatedly.

[0035] As a preferred technical solution of the embodiment, a through hole 6 matched with the fixed shaft 3 is formed in the column cap 1, and a fastening bolt 7 passing through the through hole 6 is threadedly connected to the lower end of the fixed shaft 3. Specifically, the through hole 6 is vertically arranged and is arranged outside the side surface range of the concrete column in the vertical direction. The upper end of the fastening bolt 7 penetrates the upper end of the through hole 6 to be threadedly connected with the fixed shaft 3, and the lower end of the fastening bolt 7 is provided with a cap body abutting against the lower surface of the column cap 1, and a hexagonal block or a hexagonal groove or the like is arranged on the cap body to facilitate the operation of a tightening tool. The fastening bolt 7 is tightened by the tool to vertically fix the fixed shaft 3 on the column cap 1, and the fastening bolt 7 can be detached downward from the through hole 6 by loosening the tool, so that the fixed shaft 3 is disconnected from the column cap 1. The arrangement of the fastening bolt 7 facilitates the integral detachment of the baffle 4 and the extension plate 5 from the side of the column cap 1 when the fixed shaft 3 is disconnected from the column cap 1 after the fastening bolt 7 is detached, so as to meet the case that a floor is further arranged above the beam body 2 to block the upward movement of the mold.

[0036] As a preferred technical solution of the embodiment, a functional box 10 is fixedly arranged at the lower end of the fixed shaft 3, and a recess 9 matched with the functional box 10 is arranged on the upper surface of the column cap 1. The functional box 10 is embedded in the recess 9 to limit the axial rotation of the fixed shaft 3. Specifically, the functional box 10 can be preferably rectangular, the recess 9 has an outer shape matched with the functional box 10, and the recess 9 is formed at the corner position of the upper surface of the column cap 1. When the functional box 10 is embedded in the recess 9, the axial rotation of the fixed shaft 3 is limited, the rotation of the baffle 4 around the fixed fixed shaft 3 is ensured, the operation is facilitated, and the baffle 4 is fixed in position with the fixed shaft 3 relative to the column cap 1.

[0037] In another embodiment of the present application, the functional box 10 is provided with a linkage bin 11, and the linkage bin 11 is provided with a linkage assembly for synchronously and reversely rotating the two baffles 4. Specifically, the actual arrangement direction of the two adjacent beam bodies 2 is perpendicular to each other. The linkage assembly is arranged to synchronously and reversely rotate the two baffles 4, that is, the two baffles 4 are synchronously rotated to the inside of the column cap 1 to reach a perpendicular state with the side wall of the beam body 2 corresponding to the column cap 1, or the two baffles 4 are synchronously rotated to the outside of the column cap 1 to reach a parallel state with the side wall of the beam body 2 corresponding to the column cap 1. The parallel state of the baffles 4 is a preparation state for closing the side of the column cap 1, facilitating the pre-installation of the fixed shaft 3. The perpendicular state of the baffles 4 is a working state for closing the side of the column cap 1, facilitating the formation of a closed pouring space.

[0038] As a preferred technical solution of the present embodiment, the linkage assembly comprises a first bevel gear 12 rotationally arranged in the linkage bin 11. The first bevel gear 12 is connected in meshing with two oppositely arranged second bevel gears 13. The two second bevel gears 13 are respectively coaxially connected with the lower ends of the rotating shafts of the two baffles 4. Specifically, the fixed shaft 3 is rotationally sleeved with at least two rotating sleeves, and the rotating sleeves are respectively fixedly connected with the two baffles 4. For example, when the rotating sleeves are two, they are respectively connected with the two baffles 4. When the rotating sleeves are four, two rotating sleeves are respectively connected with one baffle 4, and the rotating sleeves connected with the same baffle 4 are not adjacent. The rotating sleeves are in the shape of a cylindrical pipe. Among the two lowermost rotating sleeves, the lower end of the rotating sleeve at the higher position is provided with an extension pipe with a reduced outer diameter. The extension pipe penetrates the other rotating sleeve at the lower position from top to bottom, and extends into the linkage bin 11. The lower end of the rotating sleeve at the lower position directly penetrates and extends into the linkage bin 11. The two second bevel gears 13 are coaxially fixedly sleeved with the lower ends of the above two lowermost rotating sleeves, and the two second bevel gears 13 are oppositely arranged. The first bevel gear 12 is clamped between the two second bevel gears 13, so that the two second bevel gears 13 are synchronously and reversely rotated when the first bevel gear 12 is driven, and then the two baffles 4 are synchronously and reversely rotated through the rotating sleeves. The initial rotating position of the two baffles 4 is a position rotated outward of the column cap 1 to be parallel to the side wall of the beam body 2 corresponding to the column cap 1, that is, a preparation position.

[0039] As a preferred technical solution of the present embodiment, the functional box 10 is provided with a limiting bin 14, and a roller 15 is rotationally arranged in the limiting bin 14. The first bevel gear 12 is coaxially fixedly connected with a synchronous rod 16 rotationally arranged in the limiting bin 14. The synchronous rod 16 is synchronously rotationally connected with the roller 15. The limiting assembly is used for limiting the rotation of the roller 15. Specifically, the roller 15 is synchronously rotated with the synchronous rod 16, that is, synchronously rotated with the first bevel gear 12. The limiting assembly limits the rotation of the roller 15, that is, limits the rotation of the first bevel gear 12, so that the rotation of the two second bevel gears 13 is limited, and the rotation of the two baffles 4 is naturally limited to be fixed in position.

[0040] As the preferred technical scheme of the embodiment, the limiting assembly comprises a sliding groove 17 formed in the inner top surface of the limiting bin 14, a limiting piece 18 movably arranged in the sliding groove 17, a first elastic piece 19 connected between the upper end of the limiting piece 18 and the inner wall of the sliding groove 17, and a limiting groove 20 formed in the upper roller 15 and matched with the limiting piece 18. Specifically, the rotation of the baffle 4 is linked to the rotation of the roller 15 through the second bevel gear 13, the first bevel gear 12 and the synchronous rod 16. The rotation angle of the baffle 4 from the standby position parallel to the side wall of the beam body 2 to the working position perpendicular to the side wall of the beam body 2 is 90°, and the rotation angle of the roller 15 driven by the above rotation is not more than 360°. When the transmission ratio of the second bevel gear 13 to the first bevel gear 12 is 2, the baffle 4 rotates 90°, and the roller 15 rotates 180°. The lower end of the sliding groove 17 is open and corresponds to the axial upper side of the roller 15. The first elastic piece 19 is preferably a spring. The first elastic piece 19 is arranged to keep the limiting piece 18 extended to the open side of the lower end of the sliding groove 17, and then when the limiting piece 18 corresponds to the limiting groove 20, the lower end of the limiting piece 18 can be extended out of the sliding groove 17 to be embedded in the limiting groove 20. When the limiting piece 18 does not correspond to the limiting groove 20, the limiting piece 18 is extruded by the outer wall of the roller 15 and is shrunk into the sliding groove 17, so that the first elastic piece 19 is compressed and stores elastic potential energy. The limiting groove 20 is arranged in a penetrating manner along the axial direction of the roller 15.

[0041] As a further preferred technical solution of the embodiment, the roller 15 is provided with a center hole 21 matched with the synchronous rod 16, a sliding piece 22 is fixedly arranged on the inner wall of the center hole 21, the synchronous rod 16 is provided with a sliding groove 23 matched with the sliding piece 22, a second elastic piece 24 is arranged between the roller 15 close to the first bevel gear 12 side and the inner wall of the limiting bin 14, and the other side of the roller 15 is connected with an operating rod 25 of the movable through function box 10. Specifically, the synchronous rod 16 is a cylindrical rod, the center hole 21 is a circular hole, the sliding piece 22 is a cylindrical block, the sliding piece 22 is preferably two and is arranged symmetrically around the axis of the center hole 21, the sliding groove 23 can be arranged axially along the synchronous rod 16, and the sliding piece 22 can slide in the sliding groove 23 so that the roller 15 can move axially on the synchronous rod 16, and the synchronous rod 16 keeps transmitting torque to the roller 15 through the sliding piece 22 and the sliding groove 23, that is, the synchronous rod 16 keeps rotating synchronously with the roller 15. The second elastic piece 24 can be preferably a spring and is sleeved on the synchronous rod 16. The second elastic piece 24 keeps pushing the roller 15 away from the first bevel gear 12, that is, keeps pushing the roller 15 corresponding to the lower side of the sliding groove 17, and then when the baffle 4 is switched from the preparation position to the working position, the roller 15 is linked to rotate to make the limiting groove 20 corresponding to the limiting piece 18, so that the limiting piece 18 automatically pops out downward to be embedded in the limiting groove 20 under the elastic potential energy release of the first elastic piece 19, thereby limiting the roller 15 from continuing to rotate, that is, automatically limiting the rotation of the baffle 4. When the rotation of the baffle 4 is to be limited, the operating rod 25 pushes the roller 15 to move axially along the synchronous rod 16 to be close to the first bevel gear 12, so that under the condition that the limiting groove 20 is arranged axially along the roller 15, the limiting piece 18 slides in the limiting groove 20 to move away from one end of the limiting groove 20, so that the limiting of the rotation of the roller 15 is cancelled, and the baffle 4 can be restored to rotate.

[0042] As a further preferred technical solution of the embodiment, the outer edge of the roller 15 and the lower end of the limiting piece 18 can be wedge-shaped extrusion matched, and specifically, when the operating rod 25 is pulled back, the roller 15 is extruded against the limiting piece 18 through the outer edge to move back to the lower side of the sliding groove 17 due to the wedge-shaped matching between the outer edge of the roller 15 and the lower end of the limiting piece 18, and the roller 15 keeps abutting against the limiting piece 18 with the outer wall to make the limiting piece 18 keep retracted in the sliding groove 17, that is, to realize the reset of the roller 15.

[0043] As a further preferred technical solution of the embodiment, the sliding groove 23 is arranged in a spiral shape, and the operating rod 25 is detachably provided with the plug 8. Specifically, the spiral arrangement of the sliding groove 23 can make the roller 15 slide in the sliding groove 23 to trigger the screw feeding action when the roller 15 drives the sliding member 22 to move along the synchronous rod 16 in the axial direction. Since the limiting member 18 remains in the limiting groove 20 to limit the rotation of the roller 15 in the early stage of the movement of the roller 15, the synchronous rod 16 is rotated under the screw feeding action, and at this time, the rotation of the synchronous rod 16 promotes the rotation of the baffle 4 from the working position to the preparation position. Therefore, the baffle 4 drives the expansion plate 5 to deviate from the position perpendicular to the side wall of the beam body 2, and the expansion plate 5 in the elastic contraction state can also release the elastic potential energy synchronously to promote the further extension of the expansion plate 5. One end of the expansion plate 5 extends and abuts against the side wall of the beam body 2 at this time, thereby intensifying the deviation of the expansion plate 5 from the position perpendicular to the side wall of the beam body 2, i.e., promoting the rotation of the baffle 4 to the preparation position and promoting the demolding of the baffle 4. After the roller 15 is reset, the relationship between the position of the roller 15 and the rotation position of the baffle 4 is also reset. In addition, the plug 8 is arranged to penetrate the operating rod 25 and be limited outside the function box 10 when the baffle 4 is in the working position, i.e., to limit the movement of the operating rod 25 into the function box 10, so as to ensure that the roller 15 is located at the lower side of the corresponding sliding groove 17 at this time, thereby avoiding the outward pressure of the concrete on the baffle 4 during the concrete pouring, affecting the rotation of the synchronous rod 16, and then triggering the reverse transmission of the sliding member 22 and the spiral sliding groove 23 to drive the movement of the roller 15, so that the roller 15 is automatically released from the limiting position, thereby causing the rotation of the baffle 4 to be limited and cancelled, and causing the mold to collapse. When demolding, the plug 8 can be pulled out.

[0044] The foregoing merely describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A support-free column-beam joint pouring mold, which is arranged on a column cap (1), and a plurality of beam bodies (2) are arranged on the column cap (1), characterized in that, The utility model relates to a kind of column cap and beam body, including: Fixed shaft (3), which is vertically detachably connected to the column cap (1) and is arranged within the included angle range between two adjacent beam bodies (2); Two baffle plates (4) are hingedly connected to the same fixed shaft (3), and the end portions thereof are elastically and flexibly provided with expansion plates (5); A limiting assembly is used to limit the rotation of the baffle plates (4) around the fixed shaft (3); The lower end of the fixed shaft (3) is fixedly provided with a function box (10), and the upper surface of the column cap (1) is provided with a groove (9) matching the function box (10), the function box (10) is embedded in the groove (9) to limit the axial rotation of the fixed shaft (3); The function box (10) is provided with a linkage bin (11) therein, and the linkage bin (11) is provided with a linkage assembly therein for synchronously and reversely rotating the two baffle plates (4); The linkage assembly includes a first bevel gear (12) rotatably arranged in the linkage bin (11), the first bevel gear (12) is engagedly connected with two oppositely arranged second bevel gears (13), and the two second bevel gears (13) are coaxially connected with the lower ends of the rotation shafts of the two baffle plates (4), respectively; The function box (10) is provided with a limiting bin (14) therein, the limiting bin (14) is rotatably provided with a roller (15) therein, the first bevel gear (12) is coaxially fixedly connected with a synchronous rod (16) rotatably arranged in the limiting bin (14), the synchronous rod (16) is synchronously rotatably connected with the roller (15), and the limiting assembly is used to limit the rotation of the roller (15); The limiting assembly includes a sliding groove (17) opened in the top surface of the limiting bin (14), the limiting bin (18) is movably arranged in the sliding groove (17), the first elastic member (19) is connected between the upper end of the limiting bin (18) and the inner wall of the sliding groove (17), and the roller (15) is provided with a limiting groove (20) matching the limiting bin (18) opened in the upper surface thereof. The roller (15) is provided with a central hole (21) matching the synchronous rod (16), the inner wall of the central hole (21) is fixedly provided with a sliding member (22), the synchronous rod (16) is provided with a sliding groove (23) matching the sliding member (22), the second elastic member (24) is arranged between the roller (15) on the side close to the first bevel gear (12) and the inner wall of the limiting bin (14), and the roller (15) is connected with an operating rod (25) movably penetrating through the function box (10) on the other side.

2. The free-standing column-beam joint casting mold according to claim 1, wherein, The column cap (1) is provided with a through hole (6) opened therein, and the lower end of the fixed shaft (3) is threadedly connected with a fastening bolt (7) penetrating through the through hole (6).

3. The free-standing column-beam joint casting mold of claim 1, wherein, The outer edge of the roller (15) and the lower end of the limiting bin (18) can be wedge-shaped extrusion matched.

4. The free-standing column-beam joint casting mold of claim 1, wherein, The sliding groove (23) is spirally arranged, and the operating rod (25) is detachably provided with a plug (8).

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