L-shaped flue reserved hole mold for reducing secondary hoist hole

Abstract

This application discloses an L-shaped flue pre-reserved opening mold that reduces the need for secondary hoisting, relating to the field of building construction. It includes a flue forming mold that abuts against the inside corner of the flue wall to form the flue opening. A bottom mold is fixed to the lower end of the flue forming mold by fasteners, forming a space for storing concrete. The length and width dimensions of the bottom mold are the same as those of the flue forming mold. The bottom of the bottom mold is in close contact with a bottom formwork for supporting the concrete. After the concrete between one side of the flue forming mold and the bottom formwork solidifies, it forms the ground surface. The smooth surface of the flue forming mold and the fluidity of the concrete result in a smoother and more complete flue pre-reserved opening. After removing the fastening bolts, the bottom mold can be removed, and the flue forming mold can be pulled upwards. This structure allows the flue opening to be formed in one step without secondary construction.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to an L-shaped flue pre-reserved opening mold that reduces the need for secondary hanging holes. Background Technology

[0002] Building construction is a production activity carried out by people using various building materials and machinery and equipment in a certain space and time according to a specific design blueprint to build various building products. It includes the entire production process from construction preparation and groundbreaking to project completion and acceptance. When building a room, a flue opening needs to be reserved for exhaust.

[0003] When creating a rectangular flue pre-drilled hole, various wooden templates are used for assembly to form a square or rectangular opening. The surface of the opening formed in this way is uneven, requiring secondary drilling to achieve a smooth and aesthetically pleasing surface. Utility Model Content

[0004] To address the issue of the inability to form flue openings in a single process, this application provides an L-shaped flue pre-reserved opening mold that is easy to demold and reduces the need for secondary lifting holes.

[0005] The technical solution provided in this application for an L-shaped flue pre-reserved opening mold that reduces secondary hanging holes is as follows:

[0006] A mold for reserving an L-shaped flue opening that reduces the need for secondary hanging holes includes a flue forming mold that abuts against the inside corner of the flue wall and forms the flue opening. The lower end of the flue forming mold is fixed with a bottom mold by fasteners and forms a space for storing concrete. The length and width of the bottom mold are the same as the dimensions of the flue forming mold.

[0007] The side or bottom surface of the bottom mold contacts the bottom template used to support the concrete, and the concrete between the external corner side of the flue forming mold and the bottom template solidifies to form the ground.

[0008] Preferably, a side plate is fixedly provided on the inner side of the lower end of the flue forming mold, and the surface of the side plate is provided with a plurality of first through holes and third through holes.

[0009] Preferably, each of the third perforations is located between two first perforations.

[0010] Preferably, a second through hole corresponding to the first through hole is provided on one side of the bottom mold, and the third through hole is covered by the bottom mold.

[0011] Preferably, the bottom mold is fixed on the concrete side with a protrusion that abuts against the surface of the flue forming mold.

[0012] Preferably, the side of the protrusion away from the first perforation is set as an inclined surface, and one side of the bottom template abuts against the lower end of the inclined surface. After the concrete solidifies, it forms a chamfer through the inclined surface.

[0013] Preferably, the fastener is a fastening bolt.

[0014] Preferably, a reinforcing rib is connected between the two sides of the inside corner of the flue forming mold.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The flue forming mold is connected to the bottom mold by fastening bolts to form the flue opening, which can be square or rectangular. The smooth surface of the flue forming mold and the fluidity of the concrete make the reserved flue opening smoother and more complete, so that the flue opening is formed in one step without the need for secondary construction.

[0017] 2. After the concrete has hardened, remove the fastening bolts to remove the bottom mold, and then pull the flue forming mold upwards. Demolding is easy. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of this application;

[0019] Figure 2 This is a bottom view diagram of this application;

[0020] Figure 3 This is a schematic diagram showing the separation of the flue forming mold and the bottom mold in this application.

[0021] Attached reference numerals: 1. Flue corner; 2. Concrete; 3. Bottom formwork; 4. Flue forming mold; 41. Side plate; 42. First perforation; 43. Third perforation; 5. Bottom mold; 51. Second perforation; 52. Sloping surface; 53. Protrusion; 6. Fastening bolt; 7. Reinforcing rib. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0023] This application discloses an L-shaped flue pre-reserved opening mold that reduces the need for secondary hanging holes.

[0024] An L-shaped flue pre-reserved opening mold for reducing secondary hanging holes includes a flue forming mold 4 that abuts against the inside corner of the flue wall 1 to form the flue opening. The flue forming mold 4 is set in an "L" shape. The top of the flue forming mold 4 has an integrally formed side protrusion, and the normal length and width can be preset at the factory. The flue wall 1 is located indoors. The lower end of the flue forming mold 4 is fixed to a bottom mold 5 by fasteners, forming a space for storing concrete 2. The lower end of the flue forming mold 4 and the upper end of the bottom mold 5 are attached to form a plane contact seal. The fasteners are set as fastening bolts 6. The two adjacent surfaces of the flue forming mold 4 are fixed with reinforcing ribs 7, so that the reinforcing ribs 7 and the flue forming mold 4 form a triangle to improve stability. The length and width of the bottom mold 5 are the same as the dimensions of the flue forming mold 4.

[0025] The bottom mold 5 is placed tightly against the bottom template 3. The two ends of the bottom mold 5 and the flue forming mold 4 abut against the surface of the flue corner 1. After the concrete 2 between the external corner of the flue forming mold 4 and the bottom template 3 solidifies, it forms the ground. The side of the bottom template 3 is close to the fastening bolt 6 and does not affect the disassembly of the fastening bolt 6.

[0026] The lower inner side of the flue forming mold 4 is integrally formed with a side plate 41. The width of the side plate 41 is 2-3 cm. The surface of the side plate 41 is arrayed with a number of first through holes 42 and third through holes 43. There are at least 6 first through holes 42, and each third through hole 43 is located between two first through holes 42.

[0027] The bottom mold 5 has a second perforation 51 on one side corresponding to the first perforation 42. The first perforation 42, the third perforation 43 and the second perforation 51 have the same structure. The third perforation 43 is covered by the bottom mold 5, which facilitates the separation of the bottom mold 5 from the flue forming mold 4. The bottom mold 5 has a protrusion 53 fixed on one side of the concrete 2, which abuts against the surface of the flue forming mold 4. The protrusion 53 is set as a right trapezoid. The side of the protrusion 53 away from the first perforation 42 is set as a slope 52. The slope of the slope 52 is set at 15-45 degrees. After the concrete 2 solidifies, it forms a chamfer through the slope 52. The chamfer facilitates the installation of other templates on the formed flue opening, which in turn facilitates the subsequent forming or connection of the flue opening pipe. The upper surface of the bottom template 3 abuts against the lower surface of the protrusion 53.

[0028] The implementation principle of the L-shaped flue pre-reserved opening mold for reducing secondary hanging holes in this application embodiment is as follows: First, the construction workers assemble several bottom formwork 3 before the ground is poured, and pre-reserve the flue opening. Then, the flue forming mold 4 and the bottom mold 5 are pre-installed (specifically, the rod of the fastening bolt 6 passes through the first through hole 42 and the second through hole 51, and is then connected to the rod of the fastening bolt 6 by the nut). The worker puts one end of the flue forming mold 4 and the bottom mold 5 into the pre-reserved opening of the flue, so that the bottom mold 5 is placed tightly against the bottom formwork 3 (e.g., Figure 2 (As shown).

[0029] The bottom mold 5 and the flue forming mold 4 are both abutted against the surface of the flue corner 1 and then supported by the bottom template 3. Under the action of friction, the flue forming mold 4 is fixed in a suitable position (in order to further prevent possible displacement, iron wire can be used to further fix it to the end face of the bottom template 3). After installation, the construction workers then pour concrete 2.

[0030] After the concrete has solidified, the construction workers first dismantle the bottom formwork 3, then remove the fastening bolts 6 using a sleeve tool, and then insert thin steel bars into different third through holes 43. Afterwards, the bottom mold 5 is removed downwards by hammering the thin steel bars. After the flue forming mold 4 loses the constraint of the bottom mold 5, the construction workers can then remove the flue forming mold 4 upwards. The surface of the flue opening formed in this way is not only smooth and beautiful, but also avoids subsequent pouring and optimization.

[0031] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mold for reserving openings in an L-shaped flue to reduce secondary hanging holes, characterized in that: Includes a flue forming mold (4) that abuts against the inside corner of the flue wall (1) and forms the flue opening. The bottom end of the flue forming mold (4) is fixed with a bottom mold (5) by fasteners and forms a space for storing concrete (2). The length and width of the bottom mold (5) are the same as the dimensions of the flue forming mold (4). The side or bottom surface of the bottom mold (5) is in contact with the bottom template (3) used to support the concrete (2), and the concrete (2) between the external corner side of the flue forming mold (4) and the bottom template (3) solidifies to form the ground.

2. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 1, characterized in that: The lower inner side of the flue forming mold (4) is fixed with a side plate (41), and the surface of the side plate (41) is provided with a plurality of first through holes (42) and third through holes (43).

3. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 2, characterized in that: Each of the third perforations (43) is located between the two first perforations (42).

4. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 3, characterized in that: The bottom mold (5) has a second perforation (51) on one side corresponding to the first perforation (42), and the third perforation (43) is covered by the bottom mold (5).

5. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 2, characterized in that: The bottom mold (5) is fixed on one side of the concrete (2) with a protrusion (53) that abuts against the surface of the flue forming mold (4).

6. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 5, characterized in that: The side of the protrusion (53) away from the first perforation (42) is set as a slope (52). One side of the bottom template (3) abuts against the lower end of the protrusion (53) on the slope (52). After the concrete (2) solidifies, it forms a chamfer through the slope (52).

7. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 1, characterized in that: The fastener is configured as a fastening bolt (6).

8. The L-shaped flue pre-reserved opening mold for reducing secondary hanging holes according to claim 1, characterized in that: The two sides of the inside corner of the flue forming mold (4) are connected by reinforcing ribs (7).

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