Assembled cast-in-place beam formwork

Abstract

The utility model provides an assembly type cast-in-place beam formwork which comprises a head U-shaped prefabricated formwork body, a middle U-shaped prefabricated formwork body and a tail U-shaped prefabricated formwork body, male structures are arranged on the head U-shaped prefabricated formwork body and the middle U-shaped prefabricated formwork body respectively, female structures are arranged on the middle U-shaped prefabricated formwork body and the tail U-shaped prefabricated formwork body respectively, and the male structures are connected with the female structures. The male structure on the head U-shaped prefabricated formwork is connected with the female structure on the middle U-shaped prefabricated formwork in an inserted mode, and the male structure on the middle U-shaped prefabricated formwork is connected with the female structure on the tail U-shaped prefabricated formwork in an inserted mode. By means of the overall arrangement, the formworks can be fixed without bolts before pouring, the formworks can be combined with concrete after pouring is completed, the trouble of dismantling the formworks is avoided, meanwhile, the formworks can replace part of the concrete, transportation of the concrete is reduced, and meanwhile construction efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of construction, and in particular to a prefabricated cast-in-place beam formwork. Background Technology

[0002] Prefabricated cast-in-place beam formwork is a type of formwork widely used in civil engineering projects such as bridges and roads.

[0003] Prefabricated cast-in-place beam formwork, also known as standard formwork or modular formwork, is a formwork system that is prefabricated into components at a factory and then assembled on the construction site. This type of formwork offers advantages such as easy assembly and disassembly, multiple reuses, labor and material savings, and faster construction progress.

[0004] Prefabricated cast-in-place beam formwork typically consists of multiple small formwork components that can be quickly assembled on-site using bolts, tie rods, and other connectors to form the required overall formwork structure.

[0005] However, existing prefabricated cast-in-place beam formwork requires not only fixing with bolts before pouring, but also dismantling after the concrete has solidified, and also requires transporting a large amount of concrete, thus affecting construction efficiency.

[0006] Therefore, it is essential to invent a modular cast-in-place beam formwork. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides a technical solution for a prefabricated cast-in-place beam formwork: a prefabricated cast-in-place beam formwork, including a head U-shaped prefabricated formwork, a middle U-shaped prefabricated formwork, and a tail U-shaped prefabricated formwork, wherein: a male structure is provided on the head U-shaped prefabricated formwork and a female structure is provided on the middle U-shaped prefabricated formwork and the tail U-shaped prefabricated formwork; the male structure on the head U-shaped prefabricated formwork is inserted into the female structure on the middle U-shaped prefabricated formwork, and the male structure on the middle U-shaped prefabricated formwork is inserted into the female structure on the tail U-shaped prefabricated formwork;

[0008] The male structure includes a shielding block, a post, and a long protrusion. The shielding block is positioned above the openings at one end of the corresponding head U-shaped precast template and the middle U-shaped precast template. The upper surface of the shielding block is flush with the upper surface of the openings at the corresponding head U-shaped precast template and the middle U-shaped precast template. The post is positioned on the bottom surface of the shielding block. The bottom end of the post is flush with the bottom of the corresponding head U-shaped precast template and the middle U-shaped precast template. A gap is formed between the post and the corresponding head U-shaped precast template and the middle U-shaped precast template. The long protrusion is positioned on both sides of the openings at one end of the corresponding head U-shaped precast template and the middle U-shaped precast template, and the long protrusion is located within the corresponding gap.

[0009] The mother structure includes a socket, a sealing groove, and a notch. The socket is opened through the interior of both sides of the opening at one end of the middle U-shaped prefabricated template and the tail U-shaped prefabricated template. The sealing groove is opened on both sides of the exterior of the opening at one end of the middle U-shaped prefabricated template and the tail U-shaped prefabricated template. The notch is opened above the opening at one end of the middle U-shaped prefabricated template and the tail U-shaped prefabricated template. The position of the notch corresponds to and is connected to the position of the socket.

[0010] The insertion post is inserted into the corresponding insertion hole;

[0011] The elongated protrusion is inserted into the corresponding sealing groove;

[0012] The obstruction is located within the corresponding gap.

[0013] Each of the head U-shaped prefabricated template, the middle U-shaped prefabricated template, and the tail U-shaped prefabricated template has a connecting groove on both sides inside.

[0014] The bottom surfaces of the head U-shaped prefabricated template, the middle U-shaped prefabricated template, and the tail U-shaped prefabricated template are each provided with a second and a third connecting groove, which are interconnected and intersecting each other.

[0015] The bottom surface of the head U-shaped precast template is provided with a head splicing groove on the side of the internal bottom surface near the public structure. Several head casting steel bars are uniformly cast on the bottom surface of the head U-shaped precast template, and one end of the head casting steel bars protrudes from the head splicing groove.

[0016] The exposed portion of the head-cast steel reinforcement extends into the interior of the middle U-shaped precast formwork.

[0017] The inner bottom surface of the intermediate U-shaped precast template is provided with intermediate splicing grooves on both sides. Several intermediate cast-in-place steel bars are evenly cast on the bottom surface of the intermediate U-shaped precast template, and both ends of the intermediate cast-in-place steel bars protrude from the intermediate splicing grooves.

[0018] The middle splicing groove on the side of the intermediate U-shaped prefabricated template away from the public structure and the head splicing groove form a casting cavity.

[0019] The exposed portion of the middle cast-in-place steel reinforcement on the side of the intermediate U-shaped precast template away from the main structure extends into the head splicing groove.

[0020] The exposed portion of the head-cast reinforcing bar extends into the middle splicing groove on the side of the middle U-shaped precast template away from the main structure, and the head-cast reinforcing bar and the middle-cast reinforcing bar are arranged alternately.

[0021] The exposed portion of the middle cast-in-place steel bar on the side of the intermediate U-shaped precast formwork near the main structure extends into the tail U-shaped precast formwork.

[0022] The bottom surface of the U-shaped precast template at the tail end is provided with a tail splicing groove on the side of the internal bottom surface near the main structure. Several tail-end cast steel bars are uniformly cast on the bottom surface of the U-shaped precast template at the tail end, and one end of the tail-end cast steel bars protrudes from the tail splicing groove.

[0023] The tail splicing groove and the middle splicing groove of the middle U-shaped prefabricated template near the male structure side form a casting cavity two;

[0024] The portion of the exposed steel reinforcement at the tail end extends into the middle splicing groove of the middle U-shaped precast formwork near the male structure.

[0025] The exposed portion of the intermediate cast-in-place steel bars on the side of the intermediate U-shaped precast template closest to the main structure extends into the tail splicing groove, and the intermediate cast-in-place steel bars and the tail cast-in-place steel bars are arranged alternately.

[0026] Compared with the prior art, the advantages of this utility model are:

[0027] The overall design of this utility model allows the formwork to be fixed together without bolts before pouring, and after pouring, it can bond with the concrete, avoiding the trouble of removing the formwork. At the same time, the formwork can replace a portion of the concrete, thereby reducing the transportation of concrete and improving construction efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model.

[0029] Figure 2 This is an exploded structural diagram of the present invention.

[0030] Figure 3 This is a schematic diagram of the head U-shaped prefabricated template structure of this utility model.

[0031] Figure 4 This is a schematic diagram of the intermediate U-shaped prefabricated template structure of this utility model.

[0032] Figure 5 This is a schematic diagram of the tail U-shaped prefabricated template structure of this utility model.

[0033] In the picture:

[0034] 1. Head U-shaped precast formwork; 2. Middle U-shaped precast formwork; 21. Middle splicing groove; 22. Middle cast-in-place steel reinforcement; 3. Tail U-shaped precast formwork; 31. Tail splicing groove; 32. Tail cast-in-place steel reinforcement; 4. Joint groove one; 5. Joint groove two; 6. Joint groove three; 7. Covering block; 8. Inserted column; 9. Long strip protrusion; 10. Insertion hole; 11. Sealing groove; 12. Head splicing groove; 13. Head cast-in-place steel reinforcement; 14. Notch. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0036] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] Example

[0039] Reference Figure 1-5A precast cast-in-place beam formwork includes a head U-shaped precast formwork 1, a middle U-shaped precast formwork 2, and a tail U-shaped precast formwork 3. Each of the head U-shaped precast formwork 1 and the middle U-shaped precast formwork 2 is provided with a male structure, and each of the middle U-shaped precast formwork 2 and the tail U-shaped precast formwork 3 is provided with a female structure. The male structure on the head U-shaped precast formwork 1 is inserted into the female structure on the middle U-shaped precast formwork 2, and the male structure on the middle U-shaped precast formwork 2 is inserted into the female structure on the tail U-shaped precast formwork 3. The male and female structures facilitate assembly between the head U-shaped precast formwork 1, the middle U-shaped precast formwork 2, and the tail U-shaped precast formwork 3.

[0040] The male structure includes a shielding block 7, a post 8, and a long strip protrusion 9. The shielding block 7 is positioned above the openings at one end of the corresponding head U-shaped precast template 1 and the middle U-shaped precast template 2. The upper surface of the shielding block 7 is flush with the upper surface of the openings at the corresponding head U-shaped precast template 1 and the middle U-shaped precast template 2 to ensure flatness after assembly. The post 8 is positioned on the bottom surface of the shielding block 7. The bottom end of the post 8 is flush with the bottom of the corresponding head U-shaped precast template 1 and the middle U-shaped precast template 2. A gap is formed between the post 8 and the corresponding head U-shaped precast template 1 and the middle U-shaped precast template 2 so that the post 8 can be inserted into the corresponding insertion hole 10. The long strip protrusion 9 is positioned on both sides of the openings at one end of the corresponding head U-shaped precast template 1 and the middle U-shaped precast template 2, and the long strip protrusion 9 is located in the corresponding gap.

[0041] The mother structure includes a socket 10, a sealing groove 11, and a notch 14. The socket 10 is opened through the interior of the corresponding middle U-shaped precast template 2 and the tail U-shaped precast template 3 at one end. The sealing groove 11 is opened on both sides outside the corresponding middle U-shaped precast template 2 and the tail U-shaped precast template 3 at one end. The notch 14 is opened above the corresponding middle U-shaped precast template 2 and the tail U-shaped precast template 3 at one end. The position of the notch 14 corresponds to and is connected to the position of the socket 10.

[0042] The insert post 8 is inserted into the corresponding insertion hole 10 so that the head U-shaped prefabricated template 1, the middle U-shaped prefabricated template 2 and the tail U-shaped prefabricated template 3 can be quickly assembled.

[0043] The elongated protrusion 9 is inserted into the corresponding sealing groove 11 to ensure the sealing of the joint of the head U-shaped precast template 1, the middle U-shaped precast template 2 and the tail U-shaped precast template 3, and to prevent leakage during concrete pouring.

[0044] The shielding section 7 is positioned within the corresponding gap 14 to ensure the flatness of the assembled head U-shaped prefabricated template 1, middle U-shaped prefabricated template 2, and tail U-shaped prefabricated template 3.

[0045] In this embodiment, a connecting groove 4 is provided on both sides inside the head U-shaped prefabricated template 1, the middle U-shaped prefabricated template 2 and the tail U-shaped prefabricated template 3;

[0046] Specifically, such as cross-shaped rectangular grooves, so that after the concrete is poured, the concrete can be better integrated with the head U-shaped precast formwork 1, the middle U-shaped precast formwork 2 and the tail U-shaped precast formwork 3.

[0047] In this embodiment, the bottom surfaces of the head U-shaped prefabricated template 1, the middle U-shaped prefabricated template 2 and the tail U-shaped prefabricated template 3 are each provided with a second joint groove 5 and a third joint groove 6, and the second joint groove 5 and the third joint groove 6 are interconnected with each other.

[0048] Specifically, the second and third connecting grooves 5 and 6 adopt a rectangular structure, and the depths of the second and third connecting grooves 5 and 6 are different. The depth of the second connecting groove 5 can be greater than or less than the depth of the third connecting groove 6, so that after the concrete is poured, the concrete can be better integrated with the head U-shaped precast template 1, the middle U-shaped precast template 2 and the tail U-shaped precast template 3.

[0049] In this embodiment, a head splicing groove 12 is provided on the bottom surface of the head U-shaped prefabricated template 1 near the male structure. Several head casting steel bars 13 are uniformly cast on the bottom surface of the head U-shaped prefabricated template 1, and one end of the head casting steel bar 13 protrudes from the head splicing groove 12.

[0050] The exposed portion of the head-poured reinforcing bar 13 extends into the interior of the middle U-shaped precast formwork 2, so that after the concrete is poured, the overall strength after bonding is improved by the head-poured reinforcing bar 13.

[0051] In this embodiment, a middle splicing groove 21 is provided on both sides of the bottom surface of the middle U-shaped prefabricated template 2. Several middle cast steel bars 22 are uniformly cast on the bottom surface of the middle U-shaped prefabricated template 2. Both ends of the middle cast steel bars 22 protrude from the middle splicing groove 21.

[0052] The middle splicing groove 21 on the side away from the main structure of the middle U-shaped precast template 2 and the head splicing groove 12 form a pouring cavity 1, so as to better bond with the concrete.

[0053] The exposed portion of the intermediate cast-in-place steel bar 22 on the side away from the main structure of the intermediate U-shaped precast formwork 2 extends into the head splicing groove 12 so that the strength of the overall bond can be improved by the intermediate cast-in-place steel bar 22 after the concrete is poured.

[0054] The exposed portion of the head-cast reinforcing bar 13 extends into the middle splicing groove 21 on the side of the middle U-shaped precast formwork 2 away from the main structure. The head-cast reinforcing bar 13 and the middle-cast reinforcing bar 22 are arranged alternately to better bond with the concrete and improve the strength of the formwork connection.

[0055] The exposed portion of the middle cast steel bar 22 of the middle U-shaped precast formwork 2, which is close to the public structure, extends into the tail U-shaped precast formwork 3.

[0056] In this embodiment, a tail splicing groove 31 is provided on the bottom surface of the tail U-shaped prefabricated template 3 near the male structure. Several tail casting steel bars 32 are uniformly cast on the bottom surface of the tail U-shaped prefabricated template 3, and one end of the tail casting steel bar 32 protrudes from the tail splicing groove 31.

[0057] The tail splicing groove 31 and the middle splicing groove 21 of the middle U-shaped precast template 2 near the public structure side form a casting cavity 2, so as to better bond with the concrete.

[0058] The exposed portion of the tail-end cast steel bar 32 extends into the middle splicing groove 21 on the side of the middle U-shaped precast formwork 2 near the main structure, so that after the concrete is poured, the strength of the overall bond can be improved by the tail-end cast steel bar 32.

[0059] The exposed portion of the intermediate cast-in-place steel bar 22 on the side of the intermediate U-shaped precast formwork 2 near the public structure extends into the tail splicing groove 31, and the intermediate cast-in-place steel bar 22 and the tail cast-in-place steel bar 32 are arranged alternately.

[0060] Specifically, during assembly, select an appropriate number of intermediate U-shaped precast templates 2 according to the size of the cast-in-place beam, and select a head U-shaped precast template 1 and a tail U-shaped precast template 3;

[0061] First, install the tail U-shaped prefabricated template 3;

[0062] Then, insert the male structure of one of the middle U-shaped prefabricated templates 2 into the female structure of the tail U-shaped prefabricated template 3;

[0063] Then, the intermediate U-shaped prefabricated templates 2 are spliced ​​together end to end in sequence. For example, when splicing two adjacent intermediate U-shaped prefabricated templates 2, the male structure on one intermediate U-shaped prefabricated template 2 is inserted into the female structure of the other intermediate U-shaped prefabricated template 2 until the required number of intermediate U-shaped prefabricated templates 2 are assembled.

[0064] Finally, insert the male structure of the head U-shaped precast formwork 1 into the female structure of the corresponding middle U-shaped precast formwork 2 to complete the assembly of the cast-in-place beam formwork.

[0065] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A prefabricated cast-in-place beam formwork, characterized in that: It includes a head U-shaped precast template (1), a middle U-shaped precast template (2) and a tail U-shaped precast template (3), wherein: the head U-shaped precast template (1) and the middle U-shaped precast template (2) are each provided with a male structure, the middle U-shaped precast template (2) and the tail U-shaped precast template (3) are each provided with a female structure, the male structure on the head U-shaped precast template (1) is inserted into the female structure on the middle U-shaped precast template (2), and the male structure on the middle U-shaped precast template (2) is inserted into the female structure on the tail U-shaped precast template (3); The male structure includes a shielding block (7), a post (8), and a long strip protrusion (9). The shielding block (7) is positioned above the openings on both sides of the head U-shaped precast template (1) and the middle U-shaped precast template (2). The post (8) is positioned on the bottom surface of the shielding block (7). A gap is formed between the post (8) and the head U-shaped precast template (1) and the middle U-shaped precast template (2). The long strip protrusion (9) is positioned on both sides of the openings on both sides of the head U-shaped precast template (1) and the middle U-shaped precast template (2). The long strip protrusion (9) is located in the gap. The mother structure includes a socket (10), a sealing groove (11), and a notch (14). The socket (10) is opened through the interior of both sides of the opening at one end of the middle U-shaped prefabricated template (2) and the tail U-shaped prefabricated template (3). The sealing groove (11) is opened on both sides of the exterior of the opening at one end of the middle U-shaped prefabricated template (2) and the tail U-shaped prefabricated template (3). The notch (14) is opened above the opening at one end of the middle U-shaped prefabricated template (2) and the tail U-shaped prefabricated template (3). The position of the notch (14) is corresponding to and connected to the position of the socket (10). The insert (8) is inserted into the corresponding socket (10); The elongated protrusion (9) is inserted into the corresponding sealing groove (11); The blocking block (7) is located in the corresponding gap (14).

2. The prefabricated cast-in-place beam formwork as described in claim 1, characterized in that: The head U-shaped prefabricated template (1), the middle U-shaped prefabricated template (2) and the tail U-shaped prefabricated template (3) each have a connecting groove (4) on both sides inside.

3. The prefabricated cast-in-place beam formwork as described in claim 2, characterized in that: The bottom surfaces of the head U-shaped prefabricated template (1), the middle U-shaped prefabricated template (2) and the tail U-shaped prefabricated template (3) are each provided with a second (5) and a third (6), and the second (5) and the third (6) are interconnected with each other.

4. The prefabricated cast-in-place beam formwork as described in claim 3, characterized in that: The head U-shaped precast template (1) has a head splicing groove (12) on the bottom surface of the inner side close to the public structure. Several head casting steel bars (13) are evenly poured on the bottom surface of the head U-shaped precast template (1). One end of the head casting steel bar (13) protrudes from the head splicing groove (12). The exposed portion of the head-cast steel reinforcement (13) extends into the interior of the middle U-shaped precast template (2).

5. The prefabricated cast-in-place beam formwork as described in claim 4, characterized in that: The inner bottom surface of the intermediate U-shaped precast template (2) is provided with intermediate splicing grooves (21) on both sides. Several intermediate cast steel bars (22) are uniformly cast on the bottom surface of the intermediate U-shaped precast template (2). Both ends of the intermediate cast steel bars (22) protrude from the intermediate splicing grooves (21). The intermediate U-shaped prefabricated template (2) forms a casting cavity between the intermediate splicing groove (21) on the side away from the main structure and the head splicing groove (12); The exposed portion of the intermediate cast-in-place steel bar (22) on the side away from the main structure of the intermediate U-shaped precast template (2) extends into the head splicing groove (12); The exposed portion of the head cast steel bar (13) extends into the middle splicing groove (21) of the middle U-shaped precast template (2) on the side away from the male structure. The head cast steel bar (13) and the middle cast steel bar (22) are arranged alternately. The exposed portion of the intermediate cast-in-place steel bar (22) on the side of the intermediate U-shaped precast template (2) near the male structure extends into the tail U-shaped precast template (3).

6. The prefabricated cast-in-place beam formwork as described in claim 5, characterized in that: The bottom surface of the tail U-shaped precast template (3) is provided with a tail splicing groove (31) on the side of the internal bottom surface near the public structure. Several tail casting steel bars (32) are uniformly cast on the bottom surface of the tail U-shaped precast template (3). One end of the tail casting steel bar (32) protrudes from the tail splicing groove (31). The tail splicing groove (31) and the middle splicing groove (21) of the middle U-shaped prefabricated template (2) near the male structure side form a casting cavity two; The exposed portion of the tail-end cast steel bar (32) extends into the middle splicing groove (21) of the middle U-shaped precast template (2) near the male structure side; The exposed portion of the intermediate cast-in-place steel bar (22) of the intermediate U-shaped precast template (2) near the male structure extends into the tail splicing groove (31), and the intermediate cast-in-place steel bar (22) and the tail cast-in-place steel bar (32) are arranged alternately.

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