Independent supporting device at post-pouring slab joint

Abstract

The utility model relates to the field of building construction supporting, in particular to a post-pouring slab joint independent supporting device which comprises an independent supporting column, a bearing piece, an adjustable jacking piece and a rubber grout stop pressing plate. The bearing piece is horizontally arranged on the independent supporting column, the adjustable jacking pieces are symmetrically arranged on the two sides of the bearing piece in parallel, and the rubber grout stopping pressing plates are arranged on the end faces of the tops of the adjustable jacking pieces correspondingly and used for abutting against a gap in the seam between the post-pouring formwork and the laminated slab. And the horizontal steel pipe is simultaneously and fixedly connected with the independent support and the adjustable jacking through a bowl buckle structure. According to the structure, the supporting stability of the independent supporting columns at the post-pouring slab joint to the formwork can be improved, and the phenomenon of slurry leakage at the post-pouring slab joint during pouring construction is prevented.

Description

Technical Field

[0001] This application relates to the field of building construction support, and in particular to an independent support device for the joint of a post-cast slab. Background Technology

[0002] In the construction industry, composite slabs are increasingly widely used, combining the advantages of precast components and cast-in-place concrete to improve construction efficiency and building quality. During composite slab construction, the treatment of post-cast slab joints is crucial, as its quality directly affects the stability and waterproofing performance of the entire building structure. Good post-cast slab joint construction ensures the integrity of the building structure, reduces cracks and leaks, and is of great significance for improving the durability and functionality of the building. With the continuous development of the construction industry, the requirements for post-cast slab joint construction technology are also increasing. How to efficiently and effectively complete post-cast slab joint construction has become a focus of industry attention. In the conventional construction of post-cast slab joints in composite slabs, various methods are typically adopted to solve the sealing and support problems at the formwork splicing points. A common practice is to install a post-cast formwork supported by an independent support column under the slab joint to seal the joint. A sponge strip is added at the joint between the post-cast formwork and the composite slab, using the elasticity of the sponge to fill the gap before pouring. This method, which uses an independent support to maintain formwork stability and sponge to fill the joint gap, is simple in structure and can address some problems in post-cast slab joint construction to a certain extent, and is widely used in engineering practice. However, this existing construction method still has significant drawbacks in practical application. Firstly, simply installing an independent support under the slab joint and adding a sponge strip at the post-cast formwork joint is prone to sponge loosening, still failing to effectively prevent grout leakage. Furthermore, due to the limited stability of a single independent support, the sealing effect of the entire formwork on the post-cast slab joint is difficult to balance, and the sealing effect on both sides of the formwork interferes with the sealing effect of the sponge strip. In actual operation, operational errors are easy to occur, requiring constant adjustments to the installation accuracy, increasing construction difficulty and time costs. Utility Model Content

[0003] In order to improve the support stability of the independent support column at the joint of the post-cast slab for the formwork and to prevent grout leakage at the joint of the post-cast slab during the pouring construction, this application provides an independent support device for the joint of the post-cast slab.

[0004] This application provides an independent support device for the joint of a post-cast slab, including an independent support column, a support member, an adjustable top support member, and rubber grout-stopping plates. The support member is horizontally arranged on the independent support column, and the adjustable top support members are symmetrically and parallelly arranged on both sides of the support member. The rubber grout-stopping plates are respectively arranged on the top end face of the adjustable top support members, and the rubber grout-stopping plates are used to press against the gap at the joint between the post-cast formwork and the composite slab. By adopting the above technical solution, the support member is horizontally arranged on the independent support column, providing a horizontal bearing foundation for the entire device. The symmetrical and parallel arrangement of the adjustable top support members on both sides of the support member makes the supporting force acting on the post-cast formwork more uniform. Compared with the prior art using only one independent support column, it can significantly improve the stability of the support and reduce the possibility of formwork displacement or shaking due to unbalanced support. At the same time, because the support is more stable, it reduces the excessive reliance on precision during installation, reduces repeated adjustments, and thus reduces construction difficulty and time costs. A rubber grout-stopping pressure plate is installed on the top end face of the adjustable top support and presses against the gap at the joint between the post-cast template and the composite slab. The rubber material itself has good elasticity and sealing properties, and with the support of the adjustable top support, it can better fit the gap. Compared with the traditional method of filling only with sponge strips, this effectively avoids the problem of sponge strips easily loosening, greatly improving the sealing effect at the joint and thus preventing grout leakage at the post-cast slab joint during pouring. Preferably, the support and the independent support column, as well as the support and the two adjustable top supports, are connected by a cup-lock structure. By adopting the above technical solution, the support and the independent support column, and the support and the two adjustable top supports are all connected by a cup-lock structure. The cup-lock structure is easy to install, allowing for quick connection of various components, saving construction time. Moreover, the cup-lock structure connection is stable, enabling the support, independent support column, and adjustable top support to form a stable whole. When the adjustable top support applies pressure to the joint between the post-cast formwork and the composite slab via the rubber grout-stopping plate, the stable connection structure ensures uniform pressure transmission, enhancing the support stability of the independent support column for the formwork. Simultaneously, this stable connection reduces problems such as formwork displacement caused by loose connections, effectively preventing grout leakage at the post-cast slab joints during pouring, thereby improving construction quality and efficiency and reducing construction costs. Preferably, both adjustable top supports include a support pipe and an adjustable top support. One end of the support pipe is connected to the support member, and the adjustable top support can be inserted into the other end of the support pipe. By adopting the above technical solution, the adjustable top support includes a support pipe and an adjustable top support, with one end of the support pipe connected to the support member and the adjustable top support inserted into the other end of the support pipe. This structure allows the insertion depth of the adjustable top support within the support pipe to be adjusted according to actual needs.When it is necessary to change the support height of the post-cast formwork, the length of the adjustable top support inserted into the support tube can be flexibly changed, thus conveniently and quickly adapting to post-cast formwork of different heights, achieving precise adjustment of the post-cast formwork height, thereby ensuring stable support of the post-cast formwork and improving the versatility and practicality of the device. Preferably, the adjustable top support includes a threaded rod and an adjusting seat with a through hole. The outer wall of the threaded rod is provided with an external thread, and the inner wall of the adjusting seat is provided with an internal thread that matches the external thread. The adjusting seat is slidably fitted onto the outer wall of the threaded rod through a threaded engagement. The bottom of the threaded rod can be inserted into the support tube for connection, and the rubber grout-stopping pressure plate is set at the top of the threaded rod. By adopting the above technical solution, the outer wall of the threaded rod in the adjustable top support is provided with an external thread, and the inner wall of the adjusting seat is provided with a matching internal thread. The adjusting seat can slide on the outer wall of the threaded rod through a threaded engagement. Since the rubber grout-stopping pressure plate is set at the top of the threaded rod, when the adjusting seat is rotated, based on the thread transmission principle, the adjusting seat will move along the axial direction of the threaded rod, thereby changing the overall height of the adjustable top support. This allows for flexible adjustment of the height of the rubber grout-stopping plate based on the height difference and gap size between the post-cast formwork and the composite slab during actual construction. This ensures the plate tightly presses against the joint between the post-cast formwork and the composite slab, effectively preventing grout leakage during pouring. This significantly improves construction quality and efficiency, and reduces material waste and subsequent cleaning work caused by grout leakage. Preferably, the adjustable top support also includes a support plate, which is horizontally positioned on the top end face of the threaded rod, with the rubber grout-stopping plate horizontally positioned on the upper surface of the support plate. By adopting this technical solution, the horizontal positioning of the support plate on the top end face of the threaded rod and the horizontal positioning of the rubber grout-stopping plate on the upper surface of the support plate makes the installation of the rubber grout-stopping plate more stable. The support plate provides a flat support surface for the rubber grout-stopping plate, allowing it to bear force evenly. This results in better sealing of the gap when pressing against the joint between the post-cast formwork and the composite slab, effectively enhancing the sealing effect and further preventing grout leakage at the post-cast slab joint during pouring. Preferably, the bowl-shaped buckle structure includes a locking pin and two connectors. Both connectors are semi-annular bowl-shaped structures with a through hole in the center. Each connector has a locking portion to restrict its movement. The two connectors are arranged opposite each other, with the locking pin located between them. When both ends of the locking pin are inserted into the two connectors, they abut against the inner walls of the connectors. By adopting the above technical solution, the connector is designed as a semi-annular bowl-shaped structure with a through hole in the center. This shape allows the connector to better fit the outer walls of the support member, independent support column, and adjustable top support member, increasing the contact area.For example, when the two connectors are positioned opposite each other, the two semi-circular bowl-shaped connectors are inverted and interlocked. By passing the two connectors sequentially through the independent support column, with one connector welded to the column and the other connector's locking part abutting against the outer wall of the column to restrict movement, the support member is welded to the locking pin. Then, the locking pin is inserted between the two connectors, with its two ends abutting against the inner walls of the two connectors, further enhancing the clamping force of the connectors on the connected components. In this way, when connecting components such as the independent support column, support member, and adjustable top support, the bowl-lock structure provides a more reliable connection, ensuring a tight connection between all components of the independent support device at the post-cast slab joint, preventing loosening and significantly improving the overall stability of the device. This, in turn, ensures the stability of the device's support for the post-cast formwork and effectively prevents grout leakage at the post-cast slab joint during pouring construction due to unstable support. Preferably, the support member is positioned at a distance of 1 / 10 to 1 / 5 from the upper surface of the independent support column, so that the upper end face of the independent support column abuts against the post-cast formwork. By adopting the above technical solution, positioning the support member at a distance of 1 / 10 to 1 / 5 from the upper surface of the independent support column ensures that the support member can stably support components such as the adjustable top support, while also allowing the independent support column sufficient length for contact with the post-cast formwork. Because the support member's position is reasonable and will not be too high or too low, affecting the center of gravity of the support system, the overall stability of the independent support column structure is ensured. Furthermore, this allows the upper end face of the independent support column to accurately and stably abut against the post-cast formwork, enabling the supporting force to be directly and effectively transferred to the post-cast formwork, thus better supporting the formwork and improving the support effect and stability of the independent support device at the joint of the post-cast slab. Preferably, the upper end face of the rubber grout-stopping plate is provided with corrugated protrusions. By adopting the above technical solution, the upper surface of the rubber grout-stopping plate is provided with corrugated protrusions. These corrugated protrusions increase the friction between the rubber grout-stopping plate and the post-cast template, allowing the rubber grout-stopping plate to fit more tightly against the post-cast template, preventing slippage and thus better filling the gap at the joint between the post-cast template and the composite slab, effectively preventing grout leakage during pouring. Preferably, it also includes at least two diagonal braces, one end of which is hinged to the independent support column, and the two diagonal braces are symmetrically arranged to provide stable support for the independent support column. By adopting the above technical solution, the independent support column is connected to adjustable top supports on both sides via a support member. The rubber grout-stopping plate at the top of the adjustable top support member presses against the gap at the joint between the post-cast template and the composite slab, preventing grout leakage. The addition of at least two diagonal braces hinged to and symmetrically arranged with the independent support column provides more stable support for the independent support column, further improving the overall support stability of the device. Preferably, the diagonal brace forms an angle of 45-60 degrees with the horizontal plane.By adopting the above technical solution, the diagonal brace is set at an angle of 45-60 degrees to the horizontal plane. This angle range allows the diagonal brace to generate a reasonable component force. Within this angle range, the diagonal brace achieves a good balance between the lateral support force and the vertical stability force on the independent support column. At this angle, the diagonal brace can provide sufficient lateral support to the independent support column to resist lateral external forces, and can also share a certain vertical load, enhancing the vertical stability of the entire independent support device. This better provides stable support to the independent support column, ensuring the stability of the independent support device at the joint of the post-cast slab during construction.

[0005] In summary, this application includes at least one of the following beneficial technical effects:

[0006] 1. Because adjustable top supports are set up symmetrically and parallel to both sides of the support, and rubber grout-stopping pressure plates are set on the top end face of the adjustable top supports, the rubber grout-stopping pressure plates can press against the gaps at the joints between the post-cast template and the composite slab, thus forming a tight sealing structure, which can prevent grout leakage at the joints of the post-cast slab during the pouring construction.

[0007] 2. Adjustable top supports are symmetrically arranged on both sides of the support component, working in conjunction with independent support columns to ensure that the force is evenly distributed on the formwork. This improves the stability of the independent support columns at the joints of the post-cast slab, preventing uneven force distribution on both sides of the formwork due to unstable support and resulting in poor sealing effect. Attached Figure Description

[0008] Figure 1 This is a structural diagram of the usage state of an independent support device at the joint of a post-cast slab according to this application;

[0009] Figure 2 This is an installation cross-sectional view of the bowl-buckle structure of an independent support device at the joint of a post-cast slab, as described in this application.

[0010] Figure 3 This is a schematic diagram of an adjustable top support component for an independent support device at the joint of a post-cast slab, as described in this application.

[0011] Explanation of reference numerals in the attached drawings: 1. Independent support column; 2. Support component; 3. Adjustable top support component; 4. Rubber grout stop plate; 5. Diagonal brace; 6. Cup buckle structure; 31. Support plate; 32. Support pipe; 33. Adjustable top support; 331. Threaded rod; 332. Adjusting seat; 61. Locking pin; 62. Plug; a. Protrusion; b. Engaging part. Detailed Implementation

[0012] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0013] This application provides an independent support device for the joint of a post-cast slab, referring to... Figure 1 The system includes an independent support column 1, a support member 2, an adjustable top support member 3, a rubber grout-stopping plate 4, and diagonal braces 5. The independent support column 1 is vertically positioned on the horizontal plane. In this embodiment, there are two diagonal braces 5, which are symmetrically hinged to both sides of the independent support column 1 and press against the horizontal plane. The support member 2 is horizontally positioned on the independent support column 1. The adjustable top support member 3 is symmetrically and parallelly positioned on both sides of the horizontal support member 2. The rubber grout-stopping plates 4 are respectively positioned on the top end face of the adjustable top support member 3. The rubber grout-stopping plates 4 are used to press against the gap at the joint between the post-cast template and the composite slab. The horizontal support member 2 is fixedly connected to the independent support column 1 and the adjustable top support member 3 through a cup-lock structure 6. This arrangement makes the entire support device structure stable, effectively prevents grout leakage, and is easy to install and adjust. Specifically, in this embodiment, the independent support column 1 is a metal column, the two diagonal braces 5 are both metal rods, and the support member 2 is a metal crossbar. The support member 2 is installed perpendicular to the independent support column 1, and serves to bear loads and connect components. Metal has high strength and good stability.

[0014] The two diagonal braces 5 are positioned at an angle of 45-60 degrees to the horizontal plane, a range that provides optimal support. When installing the diagonal braces 5, the hinge point is first determined on the independent support column 1. Then, the end of the diagonal brace 5 is hinged to the independent support column 1 using a hinge, such as a pin, ensuring that the diagonal brace 5 can rotate freely around the hinge point. In this way, the angle of the diagonal brace 5 can be flexibly adjusted to adapt to different construction site environments, enhancing the stability of the independent support column 1.

[0015] Specifically, in this embodiment, the support member 2 is positioned at a distance of 1 / 10 to 1 / 5 from the upper surface of the independent support column 1, so that the upper surface of the independent support column 1 abuts against the post-cast formwork. When installing the support member 2, the installation position of the support member 2 is first calculated based on the height of the independent support column 1, and then the support member 2 is installed at that position according to the connection method of the aforementioned cup-lock structure 6. This arrangement ensures the overall stability of the device while allowing the independent support column 1 to directly support the post-cast formwork, sharing part of the load and improving the support effect.

[0016] Reference Figure 2Specifically, the bowl-shaped buckle structure 6 in this embodiment includes a locking pin 61 and two connectors 62. Both connectors 62 are semi-annular bowl-shaped structures with a through hole in the center. Each connector 62 has a locking portion b for restricting its movement. The two connectors 62 are arranged opposite each other, with the locking pin 61 located between them. When both ends of the locking pin 61 are inserted into the two connectors 62, the connectors 62 are restricted from moving by the locking portion b. For example, taking the connection between the independent support column 1 and the support member 2 as an example: the locking pin 61 is welded to the support member 2, and the two semi-annular bowl-shaped connectors 62 are in an inverted position. Both connectors 62 pass through the independent support column 1. One connector 62 is welded to the independent support column 1, and a protrusion a is welded to the outer wall of the independent support column 1. The locking portion b of the other connector 62 is provided with… The locking pin 61 has a relief groove. The specific principle is as follows: First, insert one end of the locking pin 61 into the welded and fixed connector 62. Since the outer wall of the independent support column 1 in this embodiment is closely fitted with the inner wall of the through hole of the connector 62, align the relief groove with the position of the protrusion a, and pass the connector 62 through the outer wall of the independent support column 1. The relief groove forms a relief position for the protrusion a, so that the connector 62 can pass smoothly through the independent support column 1. The other end of the locking pin 61 is also inserted into the movable connector 62. Then, rotate the movable connector 62 so that the relief groove is misaligned with the protrusion a, so that the protrusion a on the outer wall of the independent support column 1 can abut against the outer wall of the connector 62 to restrict the movable connector 62 from moving back. Finally, both ends of the locking pin 61 are firmly abutted against the inner walls of the two connectors 62, and the two semi-annular bowl-shaped connectors 62 tightly hold the locking pin 61 in place. This connection method is easy to install and provides a secure connection, ensuring reliable connections between the support component 2 and the independent support column 1, and between the support component 2 and the adjustable top support 33, thus bearing various loads during subsequent construction. (Refer to...) Figure 3Specifically, the adjustable top support 3 in this embodiment includes a support plate 31, a support tube 32, and an adjustable top support 33. One end of the support tube 32 is also connected to the support member 2 through the aforementioned cup-lock structure 6. The connection principle is similar to that between the support member 2 and the independent support column 1, and will not be elaborated further here. The support tube 32 is made of metal, such as steel, and its inner diameter must be compatible with the adjustable top support 33. The adjustable top support 33 in this embodiment includes a threaded rod 331 and an adjusting seat 332 with a through hole. The outer wall of the threaded rod 331 is provided with external threads, and the inner wall of the adjusting seat 332 is provided with internal threads that match the external threads. The adjusting seat 332 is slidably fitted onto the outer wall of the threaded rod 331 through threaded engagement. This design allows the extension length of the threaded rod 331 to be adjusted by rotating the adjusting seat 332, thereby adapting to post-cast formwork of different heights. The bottom of the threaded rod 331 can be inserted into the support tube 32 for connection. The insertion part can be connected by bolts to ensure the stability of the connection. The support plate 31 is horizontally positioned on the top end face of the threaded rod 331, and is generally made of steel plate. Its shape can be circular or square. The function of the support plate 31 is to increase the bearing area of ​​the rubber grout-stopping plate 4, so that it can more evenly press against the gap between the post-cast template and the composite slab. During installation, the support plate 31 is fixedly connected to the top end face of the threaded rod 331 by welding.

[0017] Specifically, the rubber grout-stopping plate 4 is horizontally positioned on the upper surface of the support plate 31. Made of rubber, the rubber grout-stopping plate 4 possesses excellent elasticity and sealing properties. Its upper surface has corrugated protrusions a; these protrusions a increase friction with the post-cast formwork and composite slab, better filling gaps and preventing grout leakage. When installing the rubber grout-stopping plate 4, it can be completely adhered to the upper surface of the support plate 31 using adhesive or other methods, ensuring it will not shift during construction. The implementation principle of this embodiment is as follows: by vertically placing the independent support column 1 on a horizontal plane, two metal diagonal braces 5 are symmetrically hinged at an angle of 45-60 degrees to both sides of the independent support column 1 and pressed against the horizontal plane. The hinges use pins or other hinge components; the distance between the independent support column 1 and the upper surface is 1 / 10-1 / 5. The metal support 2 is installed in position and connected by a cup-lock structure 6. The locking pin 61 in the cup-lock structure 6 is welded to the support 2. Two semi-circular cup-shaped connectors 62 are inserted backwards through the independent support column 1. One connector is welded to the independent support column 1 and has a protrusion a on its outer wall; the other has a clearance groove. During installation, first insert one end of the locking pin 61, align the clearance groove with the protrusion a, and insert the connector 62. Then rotate to offset the clearance groove from the protrusion a to achieve locking. The adjustable top support 3 also uses a cup-lock structure at one end of its support tube 32. The buckle structure 6 is connected to the support component 2. Specifically, the threaded rod 331 of the adjustable top support 33 is inserted into the support tube 32 and connected with bolts. The adjusting seat 332 is fitted onto the outer wall of the threaded rod 331 through threaded engagement to adjust the extension length. The support plate 31 is horizontally welded to the top of the threaded rod 331. The rubber grout stop pressure plate 4 is glued to the upper surface of the support plate 31. Its upper end face has a corrugated protrusion a, which is used to press against the gap between the post-cast template and the composite plate. This device has a stable structure, is easy to install and adjust, and can effectively prevent grout leakage.

[0018] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An independent support device for the joint of a post-cast slab, comprising an independent support column (1), characterized in that, It also includes a support (2), an adjustable top support (3), and a rubber grout stop plate (4); the support (2) is horizontally arranged on the independent support column (1), the adjustable top support (3) is symmetrically and parallelly arranged on both sides of the support (2), and the rubber grout stop plate (4) is respectively arranged on the top end face of the adjustable top support (3). The rubber grout stop plate (4) is used to press against the gap at the joint between the post-cast template and the composite plate.

2. An independent support device for the joint of a post-cast slab according to claim 1, characterized in that, The support member (2) is connected to the independent support column (1) and the support member (2) is connected to the two adjustable top supports (3) by a cup buckle structure (6).

3. An independent support device for the joint of a post-cast slab according to claim 1, characterized in that, Both of the adjustable top supports (3) include a support tube (32) and an adjustable top support (33). One end of the support tube (32) is connected to the support member (2), and the adjustable top support (3) can be inserted into the other end of the support tube (32) for connection.

4. An independent support device for the joint of a post-cast slab according to claim 3, characterized in that, The adjustable top support (33) includes a threaded rod (331) and an adjusting seat (332) with a through hole. The outer wall of the threaded rod (331) is provided with an external thread, and the inner wall of the adjusting seat is provided with an internal thread that mates with the external thread. The adjusting seat (332) is slidably fitted onto the outer wall of the threaded rod (331) through the threaded engagement. The bottom of the threaded rod (331) can be inserted into the support tube (32) for connection. The rubber anti-grouting pressure plate (4) is provided on the top of the threaded rod (331).

5. An independent support device for the joint of a post-cast slab according to claim 4, characterized in that, The adjustable top support (33) also includes a support plate (31), which is horizontally arranged on the top end face of the threaded rod (331), and the rubber anti-grouting pressure plate (4) is horizontally arranged on the upper surface of the support plate (31).

6. An independent support device for the joint of a post-cast slab according to claim 2, characterized in that, The bowl-shaped structure (6) includes a locking pin (61) and two connectors (62). Both connectors (62) are semi-annular bowl-shaped structures with a through hole in the middle. Each connector (62) is provided with a locking part (b) for restricting the movement of the connector (62). The two connectors (62) are arranged opposite to each other. The locking pin (61) is located between the two connectors (62). When both ends of the locking pin (61) are inserted into the two connectors (62) respectively, both ends of the locking pin (61) abut against the inner walls of the two connectors (62) respectively.

7. An independent support device for the joint of a post-cast slab according to claim 1, characterized in that, The support member (2) is positioned at a distance of 1 / 10-1 / 5 from the upper surface of the independent support column (1) so that the upper surface of the independent support column (1) abuts against the post-cast template.

8. An independent support device for the joint of a post-cast slab according to claim 1, characterized in that, The upper surface of the rubber grout stop plate (4) is provided with corrugated protrusions (a).

9. An independent support device for the joint of a post-cast slab according to claim 1, characterized in that, It also includes at least two diagonal braces (5), one end of each of the two diagonal braces (5) is hinged to the independent support column (1), and the two diagonal braces (5) are symmetrically arranged to provide stable support for the independent support column (1).

10. An independent support device for the joint of a post-cast slab according to claim 9, characterized in that, The diagonal brace (5) forms an angle of 45-60 degrees with the horizontal plane.

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