Integrated column formwork fastener

Abstract

The utility model discloses an integrated column formwork fastener which comprises a first main fastening beam, a first auxiliary fastening beam is installed on the surface of one side of the first main fastening beam in a sliding mode, a hinge is hinged to one end of the first auxiliary fastening beam, and a second main fastening beam is hinged to one side of the hinge. A second auxiliary fastening beam is slidably mounted on the surface of one side of the second main fastening beam, a third auxiliary fastening beam is hinged to one end of the second auxiliary fastening beam through a cylinder hinge, and a second main fastening beam is slidably mounted on one side of the third auxiliary fastening beam. Limiting grooves are formed in the middle positions of the first main fastening beam, the first auxiliary fastening beam, the second main fastening beam, the second auxiliary fastening beam, the third main fastening beam and the third auxiliary fastening beam correspondingly, first bolts and two-end fixing bolts are installed at the ends of the first main fastening beam and the second auxiliary fastening beam correspondingly, the structure is simplified, the working efficiency is improved, and the cost is reduced. The tool is suitable for fast fastening of column formworks of multiple sizes.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment, and more specifically, to an integrated column formwork fastener. Background Technology

[0002] During construction, to ensure the dimensional accuracy and quality of concrete columns, column formwork fasteners are used to stabilize the formwork during concrete pouring, preventing formwork displacement and bursting. Currently, column fasteners typically consist of four fastening beams forming a square frame, secured by wedge-shaped pins or bolts. Since the beams are joined end-to-end, the fixing force of the pins alone is often insufficient. Installing these fasteners requires additional bolts and pins on top of the four fastening beams, complicating the process and increasing the number of parts, thus reducing construction efficiency. Furthermore, when installing this type of column formwork, wooden planks are needed to support the beams at different heights, making the process inconvenient. Additionally, some column formwork fasteners may leave bolts and reinforcing bars after demolding, wasting resources and increasing construction costs. Moreover, some fasteners can create dead angles, potentially causing column clamps to loosen, leading to grout leakage during grouting and reducing construction accuracy.

[0003] Existing column formwork fasteners have numerous problems during use, such as complex structure, cumbersome operation, and poor safety. These problems significantly affect construction efficiency and effectiveness, and may even threaten the lives of workers. Therefore, developing a new type of integrated column formwork fastener is of paramount importance. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an integrated column formwork fastener that simplifies the fastening process into a convenient "integrated" operation. Through corresponding locking slots between the main and secondary fastening beams and movable bolts, it effectively solves the problem that existing fasteners can only fasten column formwork of the same size. It is applicable to column members of various sizes, thus ensuring multi-purpose functionality. None of the bolts and nuts need to be fixed inside the poured concrete, avoiding parts residue during demolding and reducing construction costs. The fastening beams of each formwork face are connected by hinges, allowing rotation while preventing vertical displacement, avoiding grout leakage caused by uneven stress. By controlling the relative positions of the main and secondary beams and installing the hexagonal nuts and wedge-shaped fixing pins, the fastening is completed, simplifying the structure, improving work efficiency, and making it suitable for the rapid fastening of column formwork of various sizes.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An integrated column formwork fastener includes a first main fastening beam, a first secondary fastening beam slidably mounted on one side surface of the first main fastening beam, a hinge at one end of the first secondary fastening beam, a second main fastening beam hinged to one side of the hinge, a second secondary fastening beam slidably mounted on one side surface of the second main fastening beam, a third secondary fastening beam hinged to one end of the second secondary fastening beam via a hinge, and a third main fastening beam slidably mounted on one side of the third secondary fastening beam. The fastener comprises the first main fastening beam, the first secondary fastening beam, the third main fastening beam, the third secondary fastening beam, and the third... The two main fastening beams and the second auxiliary fastening beam are each provided with a limiting groove in the middle. The ends of the first main fastening beam and the second auxiliary fastening beam are respectively equipped with a first bolt and two end fixing bolts. The ends of the second main fastening beam and the second auxiliary fastening beam are respectively connected with a second bolt and a bolt with two end fixing nuts. The ends of the third auxiliary fastening beam and the third main fastening beam are respectively equipped with two end fixing bolts and a third bolt. The first bolt, the two end fixing bolts, the second bolt, the bolt with two end fixing nuts, the two end fixing bolts and the third bolt are all slidably connected inside the limiting groove.

[0007] Furthermore, a fixing plate is fixedly connected to one end of the first main fastening beam, and a snap-fit ​​groove is provided at one end of the fixing plate.

[0008] Furthermore, a connecting seat is fixedly connected to one end of the third main fastening beam, and a connecting groove is provided on one side of the connecting seat.

[0009] Furthermore, a rotating shaft is rotatably mounted inside the connecting groove, and a rotating threaded rod is rotatably mounted on one side of the rotating shaft, with one end of the rotating threaded rod engaging inside the engaging groove.

[0010] Furthermore, a locking nut is threaded onto one end of the rotating threaded rod, and the locking nut is pressed tightly against one side surface of the fixed plate.

[0011] Furthermore, a nut washer is fitted onto one end of the rotating threaded rod. The nut washer is tightly connected to the surface of the fixed plate and the locking nut. The fixed plate is provided with a snap-fit ​​groove, and the rotating shaft and the rotating threaded rod are installed in the groove. They can be combined and positioned for snap-fit ​​fixation. Combined with the locking nut and the nut washer, they can be locked from the end of the rotating threaded rod to ensure the stability of the fourth-sided connection and facilitate combination and use.

[0012] Furthermore, the first main fastening beam, the first secondary fastening beam, the third main fastening beam, the third secondary fastening beam, the second main fastening beam, and the second secondary fastening beam are provided with locking grooves at intervals. The locking grooves are symmetrically distributed on both sides of the limiting groove. By evenly distributing the locking grooves, the sliding adjustment position can be accurately aligned, improving the stability of the length adjustment. Furthermore, wedge pins can be inserted to limit and fix the length, thereby locking the adjusted length and facilitating combined use.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) This solution simplifies the fastening process into a convenient "integrated" operation. Through the corresponding slots between the main fastening beam and the secondary fastening beam and the movable bolts, it effectively solves the problem that existing fasteners can only fasten column formwork of the same size. It is applicable to column parts of various sizes, thus ensuring that one piece can be used for multiple purposes. Each bolt and nut does not need to be fixed in the poured concrete, avoiding the residue of parts when dismantling the formwork and reducing the construction cost. The fastening beams of each formwork are connected by hinges, which can rotate while preventing vertical displacement, avoiding the leakage of grout caused by uneven force. By controlling the relative position between each main and secondary beam, the hexagonal nut and wedge-shaped fixing pin can be installed to complete the fastening. It simplifies the structure, improves work efficiency, and is suitable for the rapid fastening of column formwork of multiple sizes.

[0015] (2) The fixed plate is set with a snap-fit ​​groove, and the connecting groove is used to install the rotating shaft and the rotating threaded rod. They can be combined and positioned for snap-fit ​​fixing. Combined with the locking nut and nut washer, they can be locked from the end of the rotating threaded rod to ensure the stability of the fourth-side connection and facilitate combination use.

[0016] (3) By evenly distributing the slots, the sliding adjustment position can be precisely aligned, improving the stability of the length adjustment. Furthermore, wedge pins can be inserted to limit and fix the adjustment length, which is beneficial for combined use. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0019] Figure 3 This is a partial structural diagram of the connection between the second main fastening beam and the rotating threaded rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the first main fastening beam and the fixing plate of this utility model.

[0021] The following are the labels in the diagram: 1 First main fastening beam, 2 First secondary fastening beam, 3 Locking groove, 4 Limiting groove, 5 Second bolt, 6 Bolts with nuts at both ends, 7 Second main fastening beam, 8 Second secondary fastening beam, 9 Third secondary fastening beam, 10 Third main fastening beam, 11 Rotating threaded rod, 12 Nut washer, 13 Locking nut, 14 Rotating shaft, 15 First bolt, 16 Hinge, 17 Bolts at both ends, 18 Third bolt, 19 Bolts at both ends, 101 Connecting seat, 102 Connecting groove, 201 Fixing plate, 202 Locking groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 2 An integrated column formwork fastener includes a first main fastening beam 1, a first secondary fastening beam 2 slidably mounted on one side surface of the first main fastening beam 1, a hinge 16 hinged to one end of the first secondary fastening beam 2, a second main fastening beam 7 hinged to one side of the hinge 16, a second secondary fastening beam 8 slidably mounted on one side surface of the second main fastening beam 7, a third secondary fastening beam 9 hinged to one end of the second secondary fastening beam 8 via the hinge 16, and a third main fastening beam 10 slidably mounted on one side of the third secondary fastening beam 9. The first main fastening beam 1, the first secondary fastening beam 2, the third main fastening beam 10, the third secondary fastening beam 9, the second main fastening beam 7, and... The second set of fastening beams 8 are provided with limiting grooves 4 in the middle. The ends of the first main fastening beam 1 and the second set of fastening beams 8 are respectively equipped with first bolts 15 and two-end fixing bolts 19. The ends of the second main fastening beam 7 and the second set of fastening beams 8 are respectively connected with second bolts 5 and bolts 6 with two-end fixing nuts. The ends of the third set of fastening beams 9 and the third main fastening beam 10 are respectively equipped with two-end fixing bolts 17 and third bolts 18. The first bolt 15, the two-end fixing bolts 19, the second bolt 5, the two-end fixing nuts 6, the two-end fixing bolts 17 and the third bolt 18 are all slidably connected inside the limiting grooves 4.

[0025] Please see Figure 1 and Figure 3One end of the first main fastening beam 1 is fixedly connected to a fixing plate 201, and one end of the fixing plate 201 is provided with a snap-fit ​​groove 202. One end of the third main fastening beam 10 is fixedly connected to a connecting seat 101, and one side of the connecting seat 101 is provided with a connecting groove 102. A rotating shaft 14 is rotatably installed inside the connecting groove 102, and a rotating threaded rod 11 is rotatably installed on one side of the rotating shaft 14. One end of the rotating threaded rod 11 is snapped into the inside of the snap-fit ​​groove 202.

[0026] A locking nut 13 is threaded onto one end of the rotating threaded rod 11. The locking nut 13 is pressed and connected to one side surface of the fixed plate 201. A nut washer 12 is sleeved onto one end of the rotating threaded rod 11. The nut washer 12 is pressed and connected to the surfaces of the fixed plate 201 and the locking nut 13. A snap-fit ​​groove is provided on the fixed plate. The connecting groove is used to install the rotating shaft and the rotating threaded rod. They can be combined and positioned for snap-fit ​​fixation. With the locking nut and nut washer, the rotating threaded rod can be locked from the end position to ensure the stability of the fourth-sided connection and facilitate combination and use.

[0027] Please see Figure 1 and Figure 2 The first main fastening beam 1, the first secondary fastening beam 2, the third main fastening beam 10, the third secondary fastening beam 9, the second main fastening beam 7, and the second secondary fastening beam 8 are spaced apart with locking grooves 3. The locking grooves 3 are symmetrically distributed on both sides of the limiting groove 4. By evenly distributing the locking grooves, the sliding adjustment position can be accurately aligned, improving the stability of the length adjustment. Furthermore, wedge pins can be inserted to limit and fix the length, thereby locking the adjusted length and facilitating combined use.

[0028] 1. Rotate the threaded rod 11 with the rotating shaft 14 180 degrees inside the connecting groove 102. It can be disengaged from the snap-fit ​​groove 202 and an opening can be formed. Then, according to the column template size, the third main fastening beam 10 and the second secondary fastening beam 8 are tightly attached to the second column template. The bolts 6 with the fixed nuts at both ends are slid along the limiting groove to adjust to the appropriate position. The corresponding positions, namely the first main fastening beam 1 and the second main fastening beam 7, are tightly attached to the first column template and the third column template, respectively.

[0029] 2. After determining the relative positions of the third main fastening beam 10 and the third auxiliary fastening beam 9, insert the wedge-shaped fixing pin into the overlapping slot 3 of the third main and auxiliary beams to lock the adjusted length. The second side is then fixed. The shape of the fastener at this time is shown in the appendix. Figure 1 ;

[0030] 3. Fit the rotating threaded rod 11 against the fourth template to determine the dimensions of the third side. Fix the second main fastening beam 7 and the second auxiliary fastening beam 8. Insert the wedge-shaped fixing pin into the overlapping slot of the second main and auxiliary beams. Tighten the locking nut onto the bolt of the second auxiliary fastening beam. The third side is now fixed.

[0031] 4. According to the column template dimensions, align the first main fastening beam 1 and the first secondary fastening beam 2 tightly against the first column template. Reset and flip the rotating threaded rod 11 so that its end is engaged with the slot 202. Adjust the relative distance between the first main fastening beam 1 and the first secondary fastening beam 2, ensuring that the fasteners are tightly against the template. After adjusting the distance, insert the nut washer 12 from the end of the rotating threaded rod 11, keeping it tightly against the outer surface of the first main fastening beam 1. Tighten the locking nut 13, then insert the wedge-shaped fixing pin into the overlapping slot 3 of the first main and secondary beams, tighten the locking nut 13, and press the nut washer 12 against the surface of the fixing plate 201. The first surface is now fixed. The shape of the fasteners at this point is shown in the attached figure. Figure 2 ;

[0032] 5. Then, use a hammer to tap the wedge-shaped retaining pins on each fastener to tighten the fasteners and complete the entire tightening process;

[0033] 6. Multiple integrated fasteners can be installed according to different template heights to prevent uneven stress on the template and thus prevent demolding.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An integrated column formwork fastener, comprising a first main fastening beam (1), wherein a first secondary fastening beam (2) is slidably mounted on one side surface of the first main fastening beam (1), characterized in that: One end of the first secondary fastening beam (2) is hinged to a hinge (16), and a second main fastening beam (7) is hinged to one side of the hinge (16). A second secondary fastening beam (8) is slidably mounted on one side of the second main fastening beam (7). One end of the second secondary fastening beam (8) is hinged to a third secondary fastening beam (9) via the hinge (16). A third main fastening beam (10) is slidably mounted on one side of the third secondary fastening beam (9). A limiting groove (4) is provided in the middle position of the first main fastening beam (1), the first secondary fastening beam (2), the third main fastening beam (10), the third secondary fastening beam (9), the second main fastening beam (7), and the second secondary fastening beam (8). The ends of the first main fastening beam (1) and the second secondary fastening beam (8) are respectively equipped with a first bolt (15) and two end fixing bolts (19). The ends of the second main fastening beam (7) and the second secondary fastening beam (8) are respectively connected with a second bolt (5) and a bolt (6) with two end fixing nuts. The ends of the third secondary fastening beam (9) and the third main fastening beam (10) are respectively equipped with two end fixing bolts (17) and a third bolt (18). The first bolt (15), the two end fixing bolts (19), the second bolt (5), the bolt (6) with two end fixing nuts, the two end fixing bolts (17) and the third bolt (18) are all slidably connected inside the limiting groove (4).

2. The integrated column formwork fastener according to claim 1, characterized in that: One end of the first main fastening beam (1) is fixedly connected to a fixing plate (201), and one end of the fixing plate (201) is provided with a snap-fit ​​groove (202).

3. The integrated column formwork fastener according to claim 1, characterized in that: One end of the third main fastening beam (10) is fixedly connected to a connecting seat (101), and a connecting groove (102) is provided on one side of the connecting seat (101).

4. The integrated column formwork fastener according to claim 3, characterized in that: A rotating shaft (14) is rotatably mounted inside the connecting groove (102), and a rotating threaded rod (11) is rotatably mounted on one side of the rotating shaft (14). One end of the rotating threaded rod (11) is engaged inside the engaging groove (202).

5. The integrated column formwork fastener according to claim 4, characterized in that: One end of the rotating threaded rod (11) is threaded with a locking nut (13), which is pressed against one side surface of the fixed plate (201).

6. The integrated column formwork fastener according to claim 4, characterized in that: One end of the rotating threaded rod (11) is fitted with a nut washer (12), which is tightly connected to the surface of the fixing plate (201) and the locking nut (13).

7. The integrated column formwork fastener according to claim 1, characterized in that: The first main fastening beam (1), the first secondary fastening beam (2), the third main fastening beam (10), the third secondary fastening beam (9), the second main fastening beam (7), and the second secondary fastening beam (8) are provided with positioning grooves (3) at intervals. The positioning grooves (3) are symmetrically distributed on both sides of the limiting groove (4).

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