Template for right-angle seam of fabricated building wall

Abstract

The utility model discloses a template for a right-angle joint of a fabricated building wall. The template comprises an external corner template and an internal corner template, both the external corner template and the internal corner template comprise template plates which extend mutually in the extending direction; the ends of the formwork plates are attached to the two sides of the wall body so that a pouring area used for pouring the right-angle wall body can be formed among the inner side of the external corner formwork, the inner side of the internal corner formwork and the wall body. The formwork further comprises a fastening bolt, the fastening bolt penetrates through the formwork at a preset angle, so that an acute angle a is formed between the fastening bolt and the formwork plate; and internal threads of the fastening nut are matched with the external threads of the fastening bolt, so that the fastening nut can be arranged on the fastening bolt in a sleeving and screwing mode.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building formwork technology, and in particular to a formwork for right-angle joints in prefabricated building walls. Background Technology

[0002] In the current era of rapid development of prefabricated construction, the quality and efficiency of formwork construction at right-angle joints in walls have a significant impact on the overall building quality and construction progress. Currently, traditional formwork used in this area has several shortcomings: poor sealing performance, leading to grout leakage during concrete pouring, which not only affects the structural strength and appearance of the wall but also wastes materials; poor adaptability, making it difficult to flexibly adjust to straight walls of varying thicknesses, resulting in limited versatility and increased complexity in construction preparation; cumbersome installation and dismantling processes, consuming significant manpower and time, reducing construction efficiency; and, moreover, traditional formwork is mostly for single use or has a limited number of reuses, leading to high construction costs. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems by providing a template for right-angle joints in prefabricated building walls.

[0004] The technical solution of this utility model is implemented as follows:

[0005] This utility model provides a template for right-angle joints in prefabricated building walls, the template including an external corner template and an internal corner template;

[0006] Both the external corner template and the internal corner template include template panels with mutually perpendicular extension directions;

[0007] The ends of the template panels are attached to both sides of the wall, so that a pouring area for pouring right-angle walls is formed between the inner side of the external corner template, the inner side of the internal corner template, and the wall.

[0008] The template further includes:

[0009] A fastening bolt, wherein the fastening bolt penetrates the template at a preset angle, so that there is an acute angle α between the fastening bolt and the template plate;

[0010] A fastening nut, the internal thread of which matches the external thread of the fastening bolt, so that the fastening nut can be fitted and screwed onto the fastening bolt;

[0011] The head of the fastening bolt is nested on the outside of the external corner template, and the fastening nut abuts against the outside of the internal corner template, so as to change the distance between the external corner template and the internal corner template by changing the position of the fastening nut on the fastening bolt.

[0012] The advantages or beneficial effects of the above technical solutions include at least the following:

[0013] First, by using the fastening bolts and nuts, the spacing between the external and internal corner templates can be easily adjusted, making it suitable for straight walls of different thicknesses and improving the versatility of the templates.

[0014] Second, a sealing gasket is installed at the contact point between the formwork panel and the wall, and at least three sets of fastening components are provided. The fastening components on both sides can be pre-tightened a second time to effectively enhance the sealing performance and prevent grout leakage during pouring.

[0015] Third, the fastening cylinder of the external corner formwork is equipped with a hexagonal groove, which can prevent the fastening bolt from rotating with the fastening nut and ensure stable fastening operation. The abutment cylinder of the internal corner formwork can increase the contact area and prevent the formwork from deflecting and jamming when moving, making installation more convenient.

[0016] Fourth, the design of the smooth area and external thread area of ​​the fastening bolts, as well as the lengthening treatment of the fastening cylinder of the internal corner template, makes it easier to pull out the fastening bolts when disassembling the template, simplifying the disassembly process.

[0017] Fifth, the template is made of metal and has reinforcing ribs, which ensures that the structure is straight and stable, not easy to bend, and can be reused, thus reducing construction costs.

[0018] Sixth, the thickened part on the outside of the abutment cylinder increases the contact area between the nut and the abutment cylinder, making the fastening more secure;

[0019] 7. The height of the external thread area is lower than that of the smooth area, which further facilitates the removal of the fastening bolt from the concrete and improves the convenience of disassembly. Attached Figure Description

[0020] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0021] Figure 1 This diagram shows a template after it has been erected according to an embodiment of the present invention.

[0022] Figure 2 A schematic diagram of a hexagonal card slot according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic diagram showing the fastening nut and the thickened portion abutting in accordance with an embodiment of the present invention is shown;

[0024] Figure 4 A schematic diagram of the assembly of the fastening bolt and fastening nut according to an embodiment of the present invention is shown;

[0025] Figure 5 A schematic diagram of acute angle α according to an embodiment of the present invention is shown;

[0026] Figure 6 This diagram illustrates how the distance between the internal corner template and the external corner template is adjusted according to the wall thickness according to an embodiment of the present invention.

[0027] Figure 7 This diagram shows a reinforcing rib on a corner template according to an embodiment of the present invention.

[0028] Figure 8 A schematic diagram of the reinforcing ribs on the inside corner template according to an embodiment of the present invention is shown;

[0029] Figure 9 A schematic diagram of the internal corner template according to an embodiment of the present invention is shown. The left side of the internal corner template is the outer side, and the right side is the inner side.

[0030] Figure 10 A schematic diagram of the external corner template according to an embodiment of the present invention is shown. The left side of the external corner template is the outer side, and the right side is the inner side.

[0031] Figure 11 A schematic diagram of the smooth area and external thread area of ​​the fastening bolt according to an embodiment of the present invention is shown;

[0032] Figure 12 A cross-sectional schematic diagram of the template according to an embodiment of the present invention is shown. In the diagram, the external thread area of ​​the fastening bolt is located in the fastening cylinder, and the smooth area is located in the casting area.

[0033] Attached reference numerals: 10, wall; 20, external corner formwork; 21, fastening cylinder; 211, hexagonal slot; 30, internal corner formwork; 31, abutment cylinder; 311, thickened part; 40, fastening bolt; 41, fastening nut; 50, sealing gasket; Detailed Implementation

[0034] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0037] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0038] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0039] Reference Figure 1 and Figure 2 A template for right-angle joints in prefabricated building walls, the template includes an external corner template 20 and an internal corner template 30; both the external corner template 20 and the internal corner template 30 include template panels with mutually perpendicular extension directions;

[0040] The ends of the template panels are attached to both sides of the wall 10 so that a pouring area for pouring the right-angle wall 10 is formed between the inner side of the external corner template 20, the inner side of the internal corner template 30, and the wall 10.

[0041] The template also includes:

[0042] Fastening bolt 40 penetrates the template at a preset angle, such as... Figure 5 As shown, an acute angle α (45°) is formed between the fastening bolt 40 and the template plate, allowing the external corner template 20 and the internal corner template 30 to move axially along the fastening bolt 40. Since the wall 10 has a uniform thickness, the 45° acute angle α ensures that the spacing between the template plates in both directions is consistent, guaranteeing that the thickness of the right-angle wall 10 is consistent with the thickness of the straight wall 10. Furthermore, as... Figure 6 As shown, the spacing between the modular panels can be adaptively adjusted according to the thickness of the straight prefabricated building wall 10. The spacing between the external corner template 20 and the internal corner template 30 can be adapted to wall 10 of different thicknesses. It should be noted that the template is made of metal and can be reused.

[0043] The fastening nut 41 has an internal thread that matches the external thread of the fastening bolt 40, so that the fastening nut 41 can be fitted and screwed onto the fastening bolt 40.

[0044] The head of the fastening bolt 40 is nested on the outside of the external corner template 20, and the fastening nut 41 abuts against the outside of the internal corner template 30, so as to change the distance between the external corner template 20 and the internal corner template 30 by changing the position of the fastening nut 41 on the fastening bolt 40.

[0045] Based on further improvements to the above structure, at least three sets of fastening bolts 40 and their matching fastening nuts 41 are assembled; such as Figure 5 As shown, one set is inserted between the angles of the template plates, and the other two sets are symmetrically installed on the two template plates. The fastening bolts 40 and fastening nuts 41 in the middle are used to adjust the approximate spacing between the templates. The fastening bolts 40 and nuts on both sides are used to make the template plates fit against the walls 10 on both sides for secondary pre-tightening to prevent grout leakage during pouring. At the same time, the part of the template plate that contacts the wall 10 has a sealing gasket 50, which can further prevent grout leakage.

[0046] Based on the further improvement of the above structure, several fastening cylinders 21 for passing through fastening bolts 40 are installed on the outside of the external corner template 20. The fastening cylinders 21 have a hollow structure so that the fastening bolts 40 can pass through the template through the fastening cylinders 21. Furthermore, the fastening cylinders 21 also have hexagonal slots 211 corresponding to the hexagonal heads of the fastening bolts 40, so that the hexagonal heads can be fitted into the hexagonal slots 211. After the fastening bolts 40 pass through the template, the hexagonal heads are fitted into the hexagonal slots 211. In this way, when the fastening nut 41 is rotated on the fastening bolts 40, the fastening bolts 40 will not rotate with it, ensuring that the fastening nut 41 can rotate normally on the fastening bolts 40 and change its position.

[0047] Furthermore, several abutment cylinders 31 are installed on the outside of the internal corner template 30. The abutment cylinders 31 have a hollow structure so that the fastening bolts 40 can pass through the abutment cylinders 31 after passing through the internal corner template 30. The abutment cylinders 31 have a guiding function, which increases the contact area between the internal corner template 30 and the fastening bolts 40, so that the template is not easy to deflect and get stuck when it moves along the bolt axis. The fastening nut 41 abuts against the end of the abutment cylinder 31. The outside of the abutment cylinder 31 has a thickened part 311 to increase the contact area between the nut and the abutment cylinder 31.

[0048] It is important to note that, such as Figure 11As shown, the fastening bolt 40 includes a smooth area and an external thread area. The fastening nut 41 can be screwed into the external thread area. When moving the internal corner template 30, it is necessary to move the internal corner template 30 within the smooth area to prevent the external thread area from encroaching into the pouring area. Furthermore, the fastening sleeve 21 on the internal corner template 30 has been lengthened, as shown... Figure 12 As shown, the fastening nut 41 can be tightened towards the fastening cylinder 21 at the external thread area, ensuring that the smooth area is always located in the pouring area, which facilitates the subsequent removal of the fastening bolt 40. The height of the external thread area is lower than the height of the smooth area, which makes it easy to pull the fastening bolt 40 out of the concrete.

[0049] like Figures 7 to 10 As shown, the external corner template 20 and the internal corner template 30 have reinforcing ribs to ensure that the templates are straight and not easily bent;

[0050] During template installation, first install the external corner template 20 on the outside of the wall 10 and make it fit against the wall 10. Then, pass the fastening bolt 40 through the fastening cylinder 21 and the external corner template 20, so that the hexagonal head is locked in the hexagonal slot 211. Next, pass the internal corner template 30 through the fastening bolt 40 and make the internal corner template 30 fit against the wall 10. Then, screw the fastening nut 41 onto the fastening bolt 40 and tighten it to make the template and the wall 10 fit tightly together, and then the concrete can be poured.

[0051] When disassembling the formwork, the fastening nut 41 needs to be unscrewed, and then the inside corner formwork 30 needs to be removed. It should be noted that at this time, the fastening bolt 40 is still fitted onto the fastening sleeve 21 of the outside corner formwork 20. Since the smooth area is in the concrete, the worker located in the direction of the inside corner formwork 30 can use a tool to hammer the fastening bolt 40 towards the outside corner formwork 20, so that it moves towards the outside corner formwork 20. Since the smooth area is in the concrete, after a certain period of hammering, the smooth area of ​​the fastening bolt 40 can be separated from the concrete, and the fastening bolt 40 can be removed. After removing the fastening bolt 40, the outside corner formwork 20 can be demolded to complete the pouring work.

[0052] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A template for right-angle joints in prefabricated building walls, characterized in that: The template includes an external corner template (20) and an internal corner template (30); Both the external corner template (20) and the internal corner template (30) include template panels with mutually perpendicular extension directions; The ends of the template panels are attached to both sides of the wall (10) so that a casting area for casting a right-angle wall (10) is formed between the inner side of the external corner template (20), the inner side of the internal corner template (30) and the wall (10); The template further includes: Fastening bolt (40) penetrates the template at a preset angle so that there is an acute angle α between the fastening bolt (40) and the template plate; A fastening nut (41) is provided, the internal thread of which matches the external thread of the fastening bolt (40) so that the fastening nut (41) can be fitted and screwed onto the fastening bolt (40). The head of the fastening bolt (40) is nested on the outside of the external corner template (20), and the fastening nut (41) abuts against the outside of the internal corner template (30) so as to change the distance between the external corner template (20) and the internal corner template (30) by changing the position of the fastening nut (41) on the fastening bolt (40).

2. The template for right-angle joints in prefabricated building walls according to claim 1, characterized in that: The acute angle α is 45°.

3. The template for right-angle joints in prefabricated building walls according to claim 1, characterized in that: in, At least three sets of the fastening bolts (40) and their matching fastening nuts (41) are assembled; One set is inserted between the angles of the template plates, and the other two sets are symmetrically installed on the two template plates.

4. The template for right-angle joints in prefabricated building walls according to claim 1, characterized in that: Several fastening cylinders (21) for inserting fastening bolts (40) are installed on the outside of the external corner template (20); The fastening cylinder (21) has a hollow structure so that the fastening bolt (40) can pass through the fastening cylinder (21) and penetrate the template; The fastening cylinder (21) also has a hexagonal slot (211) corresponding to the hexagonal head of the fastening bolt (40) so that the hexagonal head can be fitted into the hexagonal slot (211).

5. The template for right-angle joints in prefabricated building walls according to claim 4, characterized in that: Several abutment cylinders (31) are installed on the outside of the internal corner template (30); The abutment cylinder (31) has a hollow structure so that the fastening bolt (40) passes through the abutment cylinder (31) after passing through the inside corner template (30), and the fastening nut (41) abuts against the end of the abutment cylinder (31).

6. The template for right-angle joints in prefabricated building walls according to claim 5, characterized in that: The outer side of the abutment cylinder (31) has a thickened portion (311) to increase the contact area between the nut and the abutment cylinder (31).

7. The template for right-angle joints in prefabricated building walls according to claim 1, characterized in that: The portion of the template panel that contacts the wall (10) has a sealing gasket (50).

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