A new formwork fastening device

Abstract

The utility model provides a novel template fastening device for building construction technical field, the device includes a plurality of head -to -tail connection's fastening assembly, and fastening assembly includes fixed part, adjusting spare and extension piece, the first end of fixed part is connected in the first end of extension piece, and the second end of fixed part is connected in the second end of extension piece of another fastening assembly's extension piece, adjusting spare sets up along the length direction of fixed part and extension piece, and one end is connected with fixed part rotation, and the other end is connected with extension piece screw thread connection, the utility model discloses through control adjusting spare and extension piece screw thread connection's length, can adjust the length after fixed part and extension piece connection, realizes accurate control to fastening degree, has reduced operation difficulty, has guaranteed to template and the fastening effect of support keel, simple structure, easy to assemble and disassemble, can turn around and use, has improved construction efficiency, has reduced construction cost.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a novel formwork fastening device. Background Technology

[0002] Frame structure buildings are a widely used structural system in various types of buildings. Their core characteristic is that loads are borne and transferred through a frame composed of linear components such as beams and columns, while walls only serve as enclosures and partitions and do not participate in structural stress. Therefore, walls in frame structure buildings are often prefabricated, while beams and columns are often cast-in-place. Current technology for beam and column construction involves using formwork to create a casting space and then reinforcing the formwork with double rows of scaffolding pipes on the outside. This fixing method is difficult to operate, and the tightness is hard to control, easily leading to bulging, misalignment, and other issues. This makes it difficult to meet quality requirements for the verticality, flatness, and structural dimensions of beams or columns, requiring repairs and impacting construction efficiency and costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a novel template fastening device that can accurately control the degree of fastening of the template, improve construction efficiency, and reduce construction costs.

[0004] The technical solution adopted in this utility model is:

[0005] A novel template fastening device includes multiple fastening components connected end to end. Each fastening component includes a fixing member, an adjusting member, and an extension member. The first end of the fixing member is connected to the first end of the extension member, and the second end of the fixing member is sleeved on the second end of the extension member of another fastening component. The adjusting member is arranged along the length direction of the fixing member and the extension member, with one end rotatably connected to the fixing member and the other end threadedly connected to the extension member.

[0006] Furthermore, the fixing member includes an end plate and a cavity, the end plate being disposed at the first end of the fixing member; the adjusting member extends through the end plate into the cavity.

[0007] Furthermore, the length of the adjusting member is greater than the length of the fixing member.

[0008] Furthermore, the fastener is fitted onto the extension.

[0009] Furthermore, the adjusting member includes a threaded portion and a snap-fit ​​end, the snap-fit ​​end being rotatably connected to the outside of the end plate, and the threaded portion being threadedly connected to the extension member.

[0010] Furthermore, the extension member has a threaded hole along its length that is adapted to the threaded portion.

[0011] Furthermore, the extension has scale markings on its outer side.

[0012] Furthermore, the second end of the extension is provided with a beveled end.

[0013] Furthermore, a fastening nut is provided on the inner side of the snap-fit ​​end, and a fastening washer is provided between the fastening nut and the end plate.

[0014] The advantages and positive effects of this utility model are:

[0015] (1) The structure of this application is simple, the fastening components are the same, which makes it easy to process and manufacture in a unified manner; the connection method is simple and easy to install and disassemble, which improves construction efficiency;

[0016] (2) By controlling the length of the threaded connection between the adjusting part and the extension part, the length of the fixed part after the connection with the extension part can be adjusted, so as to achieve precise control of the tightness, reduce the difficulty of operation, and ensure the tightness of the template and the supporting keel.

[0017] (3) By fitting the fastener onto the extension and connecting the adjusting part to the extension with the thread, the connection length between the fastener and the extension can be controlled, making the adjustment more precise and reliable. At the same time, it can be applied to the construction of structural columns or structural beams of different specifications, enabling reuse and further reducing construction costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the fastening assembly according to a specific embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a fastener according to a specific embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the extension component according to a specific embodiment of the present invention.

[0022] In the picture:

[0023] 1. Adjusting component; 2. Fastening nut; 3. Fastening washer; 4. Snap-fit ​​end; 5. Fixing component; 6. End plate; 7. Extension component; 8. Beveled end; 9. Threaded hole; 10. Scale marking. Detailed Implementation

[0024] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0025] This utility model provides a novel formwork fastening device for structural columns and / or structural beams in construction frame structures. It enables convenient fastening of the formwork for structural columns or beams, facilitating easy installation and disassembly, achieving precise control over the degree of fastening, reducing operational difficulty, effectively preventing bulging, misalignment, and other issues. It ensures that the fastened formwork meets the verticality, flatness, and structural dimensional requirements of the structural beams or columns, thereby ensuring construction quality and saving construction time.

[0026] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a novel template fastening device, including multiple fastening components connected end to end. The fastening components include a fixing member 5, an adjusting member 1, and an extension member 7. The first end of the fixing member 5 is connected to the first end of the extension member 7, and the second end of the fixing member 5 is sleeved on the second end of the extension member 7 of another fastening component. The adjusting member 1 is arranged along the length direction of the fixing member 5 and the extension member 7, with one end rotatably connected to the fixing member 5 and the other end threadedly connected to the extension member 7. The aforementioned multiple fastening components connected end to end form a closed shape, which is adapted to the template used for shaping structural columns or beams and the supporting keel on the outside of the template. The number of fastening components varies when the cross-sectional shape of the structural column or beam is different. Both the fastener 5 and the extension 7 are used to abut against the supporting keel so that the keel clamps the template. The fastener 5 and the extension 7 of each fastening component are connected at a set included angle, which is adapted to the cross-sectional shape of the structural column or beam. For example, when the cross-sectional shape of the structural column or beam is rectangular, the number of fastening components is four, and the included angle between the first end of the fastener 5 and the first end of the extension 7 is 90 degrees. Through the above technical solution, the fixing part 5 of a fastening component is connected to the extension part 7 of the adjacent fastening component through the adjusting part 1. The four fastening components are connected end to end, so that the shape formed by the fastening components meets the fastening requirements of the template and the supporting keel. The four fastening components have the same structure, which is convenient for uniform processing and manufacturing. The connection method is simple and easy to install and disassemble. By controlling the length of the threaded connection between the adjusting part 1 and the extension part 7, the length of the fixing part 5 after being connected to the extension part 7 can be adjusted, so as to achieve precise control of the fastening degree, reduce the difficulty of operation, and ensure the fastening effect of the template and the supporting keel.

[0027] It is understandable that the fastener 5 is connected to the extension 7 through the adjusting part 1. The adjusting part 1 and the extension 7 are connected by threads, which realizes precise adjustment and self-locking. This setting can, on the one hand, realize precise adjustment of the connection length between the adjusting part 1 and the extension 7, and thus make continuous and precise adjustment of the connection length between the fastener 5 and the extension 7; on the other hand, the adjusting part 1 can be fixed by self-locking, so that the connection length between the fastener 5 and the extension 7 is not easily changed.

[0028] Further, in this embodiment, the fixing member 5 includes an end plate 6 and a cavity, with the end plate 6 disposed at the first end of the fixing member 5; the adjusting member 1 extends into the cavity through the end plate 6. Specifically, the fixing member 5 is a cavity structure with one open end, the open end of which is disposed at the second end of the fixing member 5. The adjusting member 1 is placed inside the cavity of the fixing member 5 along the length direction of the fixing member 5 and can rotate freely axially within the cavity, while being threadedly connected to the extension member 7; as the adjusting member 1 rotates, the extension member 7 moves along the length direction of the adjusting member 1, thereby adjusting the connection length between the adjusting member 1 and the extension member 7, and thus achieving precise adjustment of the connection length between the fixing member 5 and the extension member 7.

[0029] Furthermore, in this embodiment, the fixing member 5 is sleeved on the extension member 7. That is, the inner wall shape of the fixing member 5 is larger than the outer wall shape of the extension member 7, so that at least a portion of the extension member 7 extends into the inner side of the cavity of the fixing member 5. The extension member 7 can move along the length direction of the fixing member 5 under the action of the adjusting member 1, thereby adjusting the connection length between the two.

[0030] Preferably, in this embodiment, both the fixing member 5 and the extension member 7 are made of square steel tubes, and when the two are sleeved together, there is a very small gap between the outer wall of the extension member 7 and the inner wall of the fixing member 5. On the one hand, this ensures that the extension member 7 can move smoothly relative to the fixing member 5, and on the other hand, it prevents the extension member 7 from rotating relative to the fixing member 5 during the movement. This arrangement ensures that one side of the fixing member 5 and the extension member 7 always remains in contact with the supporting keel, forming an effective fixation of the supporting keel and improving the overall stability of the device.

[0031] Furthermore, in this embodiment, the length of the adjusting member 1 is greater than the length of the fixing member 5. That is, at least a portion of the length of the adjusting member 1 can extend to the outside of the cavity of the fixing member 5. With this setting, the extension member 7 can be installed onto the adjusting member 1 more conveniently, and the connection length between the fixing member 5 and the extension member 7 can be adjusted to the maximum extent.

[0032] Furthermore, in this embodiment, the adjusting member 1 includes a threaded portion and a snap-fit ​​end 4. The snap-fit ​​end 4 is rotatably connected to the outside of the end plate 6, and the threaded portion is threadedly connected to the extension member 7. Specifically, the end plate 6 has a through hole for the adjusting member 1 to pass through, and the size of the through hole is smaller than that of the snap-fit ​​end 4, so that the snap-fit ​​end 4 can be held on the outside of the end plate 6. By rotating the snap-fit ​​end 4, the adjusting member 1 can be rotated, thereby connecting the threaded portion to the extension member 7 and driving the extension member 7 to move axially along the adjusting member 1. Preferably, the shape of the snap-fit ​​end 4 is adapted to an electric wrench, so that the adjusting member 1 can be rotated by the electric wrench, further reducing the difficulty of operation and improving the installation efficiency of the new template fastening device.

[0033] Furthermore, in the embodiments of this application, the aforementioned threaded portion is provided with external threads, and the extension member 7 is provided with a threaded hole 9 that is adapted to the threaded portion in the length direction. The threaded hole 9 is provided with internal threads. The threaded hole 9 can be a threaded hole 9 directly machined on the extension member 7, or a through hole can be machined on the extension member 7 and then a through hole with internal threads can be fixed at the through hole by welding or bonding.

[0034] Furthermore, the extension member 7 is provided with a scale mark 10 on its outer side. The scale mark 10 is used to indicate the length of the extension member 7 and is provided at least on the outer side of the extension member 7 when it is in use. With this setting, the optimal connection length between the reinforcement and the extension member 7 corresponding to the appropriate tightness can be pre-calculated based on the size of the structural column or structural beam, the thickness of the template and the supporting keel. During installation, the worker observes the scale mark 10 while rotating the adjusting member 1. Since the length of the fixing member 5 is a fixed value, when the extension member 7 extends into the fixing member 5, the scale value corresponding to the connection part of the two is the connection length between the fixing member 5 and the extension member 7. When this connection length reaches the optimal connection length, the rotation of the adjusting member 1 is stopped, and the optimal tightness of the template and supporting keel by the new template fastening device can be achieved. This makes the control of the tightness no longer solely dependent on the experience of the worker, further improving the accuracy and controllability of the adjustment.

[0035] Furthermore, in this embodiment, the second end of the extension member 7 is provided with a beveled end 8. Specifically, the beveled end 8 extends outward at an angle with respect to the threaded hole 9, so that the location of the threaded hole 9 forms a concave structure at the second end of the extension member 7, so as to facilitate the alignment of the adjusting member 1 with the threaded hole 9 and more conveniently realize the connection between the adjusting member 1 and the extension member 7.

[0036] Furthermore, a fastening nut 2 is provided on the inner side of the aforementioned snap-fit ​​end 4, and a fastening washer 3 is provided between the fastening nut 2 and the end plate 6. In this embodiment, a smooth part is also provided between the threaded part of the adjusting member 1 and the snap-fit ​​end 4. During the process of fastening the template and the supporting keel, the fastening nut 2 is threaded to one end of the threaded part, and the other end of the threaded part is connected to the extension member 7. The setting of the fastening nut 2 can improve the stability of the adjusting member 1, so as to avoid the adjusting member 1 from loosening due to the vibration of concrete pouring, affecting the tightness of the device, and ultimately affecting the pouring quality of the structural column or structural beam. After use, the fastening thread can be moved to the smooth part, and then the adjusting member 1 can be rotated to release the connection between the adjusting member 1 and the extension member 7.

[0037] This utility model embodiment also proposes a method for using the above-mentioned novel template fastening device, including the following steps:

[0038] S1. Install structural column formwork and supporting joists;

[0039] Understandably, before constructing the structural columns, a new type of formwork fastening device is made according to the size of the structural columns and the thickness of the formwork and supporting joists to be used, so that the adjustment range of the fastening components can meet the fastening requirements of the formwork and supporting joists.

[0040] In this embodiment of the application, the cross-sectional shape of the structural column is rectangular, and the novel template fastening device includes four fastening components. After the manufacturing is completed, the fastening components are connected in pairs to facilitate transportation and assembly; the two fastening components connected together correspond to two adjacent sides of the structural column.

[0041] S2. Place the new template fastening device on the outside of the supporting keel and connect it to the adjacent fastening components;

[0042] Preferably, two fastening components connected together are placed on the outside of the supporting keel on both sides of one corner of the structural column, and two other fastening components connected together are placed on the outside of the two supporting keels at the opposite corner. Then, the two unconnected adjacent fastening components are connected together by the adjusting member 1.

[0043] S3. Adjust the connection length between the adjusting component 1 and the extension component 7 of the new template fastening device, and lock the adjusting component 1 by fastening nut 2;

[0044] During operation, the two adjusting parts 1 located on opposite sides of the structural column should be adjusted synchronously. First, fix the fastening nut 2 to the threaded part, and then rotate the adjusting part 1 with an electric wrench. According to the calculated optimal connection length, observe the scale mark 10 on the extension part 7 in real time. When the two match, stop rotating the adjusting part 1, and then tighten the fastening nut 2 so that the fastening nut 2 abuts against the fastening washer 3. In the same way, adjust the two adjusting parts 1 located on the other opposite sides of the structural column synchronously.

[0045] S4. Install other new template fastening devices according to the set spacing;

[0046] Preferably, the novel template fastening devices are evenly arranged along the length of the structural column; the spacing between two adjacent novel template fastening devices is the same.

[0047] S5. Pouring concrete for structural columns;

[0048] S6. After the concrete reaches the set strength, loosen the fastening nut 2, disconnect the connection between the adjusting part 1 and the extension part 7, and then remove the new formwork fastening device.

[0049] Preferably, after loosening the fastening nut 2, it is only necessary to disconnect the connection between the two adjusting parts 1 and the corresponding extension parts 7 located on opposite sides of the structural column, and remove the fastening components in pairs as a whole, so as to facilitate reuse.

[0050] In a preferred embodiment, the adjustable range of the connection length between the fastener 5 and the extension 7 is large, which makes the novel template fastening device of this application applicable to the construction of structural columns or structural beams of multiple different specifications, and is more conducive to saving construction costs.

[0051] The novel template fastening device proposed in this application is made of common materials found on construction sites, which are easy to process and have low cost. In a specific embodiment, the fixing part 5 is made of a square steel tube with a cross-sectional shape of 100×100mm and a wall thickness of 5mm; the extension part 7 is made of a square steel tube with a cross-sectional shape of 90×90mm and a wall thickness of 5mm; the first end of the fixing part 5 is welded to the first end of the extension part 7; the adjusting part 1 is made of a screw with a diameter of 10mm and a length of 600mm. The overall structure is simple, easy to install and disassemble, easy to adjust and control, and can be applied to the construction of structural beams and columns of various specifications.

[0052] The advantages and positive effects of this utility model are:

[0053] (1) The structure of this application is simple, the fastening components are the same, which makes it easy to process and manufacture in a unified manner; the connection method is simple and easy to install and disassemble, which improves construction efficiency;

[0054] (2) By controlling the length of the threaded connection between the adjusting part and the extension part, the length of the fixed part after the connection with the extension part can be adjusted, so as to achieve precise control of the tightness, reduce the difficulty of operation, and ensure the tightness of the template and the supporting keel.

[0055] (3) By fitting the fastener onto the extension and connecting the adjusting part to the extension with the thread, the connection length between the fastener and the extension can be controlled, making the adjustment more precise and reliable. At the same time, it can be applied to the construction of structural columns or structural beams of different specifications, enabling reuse and further reducing construction costs.

[0056] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A novel template fastening device, characterized in that: The fastening assembly includes multiple fastening components connected end to end. Each fastening component includes a fixing member, an adjusting member, and an extension member. The first end of the fixing member is connected to the first end of the extension member, and the second end of the fixing member is sleeved on the second end of the extension member of another fastening assembly. The adjusting member is arranged along the length direction of the fixing member and the extension member, with one end rotatably connected to the fixing member and the other end threadedly connected to the extension member.

2. The novel template fastening device according to claim 1, characterized in that: The fixing member includes an end plate and a cavity, the end plate being disposed at the first end of the fixing member; the adjusting member extends through the end plate into the cavity.

3. The novel template fastening device according to claim 2, characterized in that: The length of the adjusting member is greater than the length of the fixing member.

4. The novel template fastening device according to claim 2 or 3, characterized in that: The fastener is fitted onto the extension.

5. The novel template fastening device according to claim 4, characterized in that: The adjusting component includes a threaded portion and a snap-fit ​​end. The snap-fit ​​end is rotatably connected to the outside of the end plate, and the threaded portion is threadedly connected to the extension component.

6. The novel template fastening device according to claim 5, characterized in that: The extension member has a threaded hole along its length that matches the threaded portion.

7. The novel template fastening device according to claim 5 or 6, characterized in that: The extension has scale markings on its outer side.

8. The novel template fastening device according to claim 7, characterized in that: The second end of the extension is provided with a beveled end.

9. The novel template fastening device according to claim 5, characterized in that: A fastening nut is provided on the inner side of the snap-fit ​​end, and a fastening washer is provided between the fastening nut and the end plate.

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