Beam-column joint formwork fixing tool

Abstract

The utility model relates to template fixing technology, concretely to beam column joint template fixing tool, including right angle type male angle fixer and three inclined struts, wherein the male angle fixer's outside welding fixed plate, three inclined struts all include the support rod of middle part, and the support rod is connected fixed plate through the upper end setting upper connecting piece, is connected respectively three wheel buckles of full hall frame and male angle fixer adjacent through the lower end setting lower connecting piece. The utility model sets up right angle type male angle fixer and supports joint male angle template from the outside, and the three inclined struts set up take the full hall frame of support template as the support base, and the lower end connects the remaining hole site on the corresponding wheel buckle respectively, since the full hall frame is rectangular frame structure, and three wheel buckles adjacent with joint male angle template are not on the same straight line, therefore three inclined struts are in the state of support and show three pyramid shape distribution, can support male angle fixer stably, ensure that joint male angle template does not deform and leak grout before and after grouting.

Description

Technical Field

[0001] This utility model relates to template fixing technology, specifically a template fixing tool for beam-column joints. Background Technology

[0002] When pouring concrete at the beam-column joint, because the width of both beam formworks is smaller than the width of the column formwork, and the beam formwork is centered relative to the column formwork, an external corner will be formed at the joint of adjacent beam and column formworks. During construction, an independent joint external corner formwork, consisting of two small formwork pieces, is set up at these corners. Since the joint external corner formwork is at the same height as the beam formwork, it is impossible to use square-round clamps to fix it. After the concrete is poured, due to the influence of concrete weight, volume changes, and vibration, the joint external corner formwork may experience misalignment and grout leakage.

[0003] The existing method involves supporting square timber on the outside of the joint corner formwork. One end of these timbers supports the corner formwork, and the other end supports the scaffolding. For issues with insufficient timber size, the common practice is to add spacers between the timber and the crossbars of the scaffolding. This support structure is highly susceptible to vibration, frequently resulting in timber detachment. This not only fails to secure the formwork but also poses a safety hazard. Therefore, despite these measures, misalignment still occurs frequently, leading to poor appearance and quality of the poured beams and columns, necessitating subsequent repairs. Utility Model Content

[0004] The purpose of this utility model is to provide a reusable beam-column joint formwork fixing tool. It adds a corner fixer to the position where misalignment is prone to occur at the beam-column intersection, which can limit the displacement of the external corner formwork. It also utilizes a full-span scaffold to provide stable and reliable support, so that the external corner fixer is not affected by pouring, vibration, or shock, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a beam-column joint template fixing tool, comprising a right-angle external corner fixer and three diagonal bracing rods, wherein a fixing plate is welded to the outer side of the external corner fixer, and fixing holes are provided on the fixing plate; each of the three diagonal bracing rods includes a support rod in the middle, the support rod is connected to the fixing plate through an upper connector at the upper end, and is respectively connected to three wheel buckles on the full-span scaffold adjacent to the external corner fixer through a lower connector at the lower end.

[0006] In the above technical solution, the right-angle corner fixer simultaneously adheres to both plates of the joint corner template from the outside, providing support for the joint corner template from the outside. The three diagonal braces use the full-span scaffold of the support formwork as their support base, with their lower ends connected to the remaining holes on the corresponding ring buckles. Since the full-span scaffold is a rectangular frame structure, the three ring buckles adjacent to the joint corner template are not on the same straight line. Therefore, the three diagonal braces are distributed in a triangular pyramid shape under support, providing stable support for the corner fixer and ensuring that the joint corner template will not deform or leak grout after grouting. Compared with existing beam-column joint fixing methods, this solution ensures that the corner fixer is in a stable supported state.

[0007] As a preferred embodiment, the upper and lower connectors have identical structures. The upper connector includes a connector head with a horizontally open locking slot in the middle. A pin hole runs longitudinally from the top to the bottom of the connector head, penetrating the locking slot, and the pin hole is fitted with a pin. The structure of the upper and lower connectors in this embodiment is the same as that of the lock heads used in existing full-span scaffolding. Using existing lock heads as connectors not only ensures a stable connection with the latch, but also effectively saves production costs by simply connecting the existing lock head to the support rod during production.

[0008] As a preferred embodiment, the upper connector is connected to the support rod via a hinge joint, with the hinge axis of the hinge joint horizontal and perpendicular to the length direction of the support rod. The lower connector is connected to the support rod via a universal joint. At the beam-column joint, the connection points of the horizontal and vertical bars on the full-span scaffold are often located below the external corner formwork of the joint. Therefore, the three diagonal braces are inclined from the fixing plate to the corresponding ring buckles. Using a hinge joint to connect the upper connector can meet the need to adjust the inclination angle, while using a universal joint to connect the lower connector allows the lower connector to connect to the ring buckle at a suitable angle. Therefore, the diagonal braces of this embodiment can accommodate the positional deviation between the locking buckle and the external corner fixing device, enabling the formwork fixing tool to be stably installed on the full-span scaffold around the beam-column joint.

[0009] As a preferred embodiment, the support rod is a telescopic rod, including a second connecting rod and a first connecting rod inserted into the second connecting rod, with a locking bolt installed on the second connecting rod. The scaffolding is built around the columns, and different columns are at different distances from the surrounding scaffolding crossbars and uprights. This design allows adjustment of the diagonal brace length based on the distance between the wheel buckle and the corner fixing device, thus ensuring the adaptability of the formwork fixing tool. Preferably, the support rod is a round steel pipe, with a directional plane extending along its length on the first connecting rod. This directional plane contacts the locking bolt, preventing the second connecting rod from rotating relative to the first connecting rod, while increasing the contact area between the locking bolt and the first connecting rod, thus improving the reliability of the locking mechanism.

[0010] As a preferred option, two fixing plates, one above the other, are installed on the corner fixing device. The middle diagonal brace connects to the lower fixing plate, and the two diagonal braces on both sides connect to the upper fixing plate.

[0011] As a preferred embodiment, the corner retainer is made of Q235B material, with a height of 450mm, a width of 150mm for both wings, and a plate thickness of 5mm.

[0012] As a preferred embodiment, the fixing plate is a fan-shaped plug-in plate I, cut from an annular ring buckle, and the plug-in plate I has plug-in holes I. Using existing ring buckles as the raw material for the plug-in plate I ensures a stable connection with the lock head, and only requires secondary processing of the existing ring buckles during production, which can effectively save production costs.

[0013] As a preferred embodiment, the fixing plate is an L-shaped plug-in plate, and plug-in holes II are provided at both ends and right angles of the plug-in plate. Three diagonal braces support the edge and middle of the corner fixer respectively, thereby improving the stability of the corner fixer. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 A schematic diagram illustrating the usage state of the beam-column joint template fixing tool provided in this embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the center corner fixation device;

[0017] Figure 3 This is a schematic diagram of the planar structure of the diagonal brace in the figure;

[0018] Figure 4 A three-dimensional structural diagram of a diagonal brace that can prevent relative rotation between the first and second connecting rods;

[0019] Figure 5 for Figure 3 Schematic diagram of the upper and middle connecting parts;

[0020] Figure 6 This is a schematic diagram of the installation structure of the lower connector of the diagonal brace;

[0021] Figure 7 A schematic diagram of a template fixing tool with two plug-in plates;

[0022] Figure 8 Top view of a corner fixer for another type of fixing plate.

[0023] In the diagram, the following components are included: column formwork 1, beam formwork 2, joint corner formwork 3, corner fastener 4, diagonal brace 5, full-span scaffold 6, plug-in plate 41, plug-in plate 42, first connecting rod 51, second connecting rod 52, locking bolt 53, upper connector 54, lower connector 55, wheel buckle 61, plug hole I 411, plug hole II 421, hinge joint 511, orientation plane 513, universal connector 521, connector 541, snap-fit ​​seam 542, pin hole 543, and pin 544. Detailed Implementation

[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] Figure 1 This illustration shows a schematic diagram of the beam-column joint formwork fixing tool provided in this embodiment. The scaffolding 6 is a rectangular frame structure, constructed by connecting the support rods with ring buckles 61 via horizontal bars. It is used to support the beam-column formwork and floor slab formwork. On the construction site, the scaffolding 6 is set up around the column formwork 1. As can be seen from the figure, the joint corner formwork 3 is composed of two small formwork pieces vertically spliced ​​together and is located between adjacent beam formwork 2. The right-angle corner fixer 4 in the beam-column joint formwork fixing tool provided in this embodiment is set against the outer side of the joint corner formwork 3, which can support two formwork pieces at the same time. The corner fixer 4 is connected to three ring buckles 61 adjacent to the corner fixer 4 on the scaffolding 6 via three diagonal braces 5.

[0026] Specifically, the corner retainer 4 used in this embodiment is made of Q235B material, with a height of 450mm, a flange width of 150mm on each of the two right-angled sides, and a plate thickness of 5mm. For example... Figure 2 As shown, a connector plate I41, cut from a ring-shaped buckle, is provided in the center of the back of the corner retainer 4. The connector plate I41 retains the buckle's insertion hole I411. The main structure of the diagonal brace 5 is a telescopic rod composed of a first tubular connecting rod 51 and a second connecting rod 52, as shown... Figure 3As shown, the lower end of the first connecting rod 51 is movably inserted into the second connecting rod 52, and a locking bolt 53 is placed on the upper part of the second connecting rod 52. The locking bolt 53 has a rotating handle. By tightening the locking bolt 53, the first connecting rod 51 can be fixed, thereby achieving the purpose of adjusting the length of the telescopic rod. As mentioned above, the telescopic rod in this embodiment is cylindrical. Compared with a square tube, the cylindrical telescopic rod is smoother and easier to adjust the length. However, in the non-fixed state, the first connecting rod 51 may rotate relative to the second connecting rod 52, causing the locking bolt 53 to rotate to a position that is difficult to operate. To avoid this problem, a locking bolt 53 can be used to lock the first connecting rod 51. Figure 4 The scheme shown involves grinding a directional plane 513 on the surface of the first connecting rod 51 within its length adjustment range, and limiting it with a locking bolt 53, thereby preventing the first connecting rod 51 from rotating relative to the second connecting rod 52.

[0027] The diagonal brace 5 also includes an upper connector 54 and a lower connector 55 disposed at both ends of the telescopic rod. In this embodiment, the lock head on an existing full-span scaffold is used as the connector; therefore, the upper connector 54 and the lower connector 55 in this embodiment have identical structures. Taking the upper connector 54 as an example... Figure 4 As shown, the upper connector 54 includes a connector 541, which has a horizontally open front-end snap-fit ​​slot 542 in its middle. A pin hole 543 extends longitudinally from the top to the bottom of the connector 541 through the snap-fit ​​slot 542, and a pin 544 is fitted into the pin hole 543. Figure 5 and Figure 6 It can be seen that the upper connector 54 is connected to the support rod through the hinge joint 511, and the hinge axis of the hinge joint 511 is horizontal and perpendicular to the length direction of the support rod. The lower connector 55 is connected to the support rod through the universal connector 521.

[0028] In addition, such as Figure 7 As shown, two connector plates 41, one above the other, can also be set on the corner fixing device 4. In use, the middle diagonal brace 5 can be connected to the lower connector plate 41, and the two diagonal braces 5 on both sides can be connected to the upper connector plate 41. In use, the corner template 3 will restrict the corner fixing device 4 from moving inward toward the column template 1. At the same time, since the length of the three diagonal braces 5 is fixed, any one diagonal brace 5 will restrict the other two diagonal braces 5 from deflecting upward, thus forming a stable support structure.

[0029] The beam-column joint formwork fixing tool described above uses existing scaffolding components such as wheel buckles and locks as assembly parts. This not only improves the compatibility of the formwork fixing tool with the scaffolding but also reduces the design and development of components. Existing components can be modified to create the formwork fixing tool of this embodiment, thus effectively saving production costs. Of course, these components can also be replaced with other structural forms, such as... Figure 8 As shown, the fixing plate on the back of the corner fixer 4 adopts an L-shaped plug plate 42, and plug holes II421 are provided at both ends and right angles of the plug plate 42. The upper connectors 54 at the upper ends of the three diagonal braces 5 are respectively connected to the corresponding plug holes II421.

[0030] When carrying out the work, first set up the beam-column joint formwork according to the normal formwork erection process, and after the formwork is closed, install the formwork fixing tools on the external corner of the column. Specifically, first, the lower connecting parts 55 at the lower ends of the three diagonal braces 5 are installed on the corresponding wheel buckles 61. At this time, all three diagonal braces 5 are in an adjustable length state. For the installation of the connecting parts, it is necessary to ensure that the pins 544 are tightened. Next, the upper connecting part 54 of the middle diagonal brace 5 is connected to the insertion hole I411 in the middle of the insertion plate 41. Then, the corner fixing device 4 is fitted against the corner template 3 of the joint, ensuring that the corner template 3 of the joint is completely held by the corner fixing device 4. At this time, the locking bolts 53 on the diagonal brace 5 are tightened. Then, the diagonal braces 5 on both sides are connected to the insertion holes I411 on both sides of the insertion plate 41 in sequence, and the locking bolts 53 are tightened. At this time, the three diagonal braces 5 are distributed in a triangular pyramid shape, which has a stable support structure and will not cause the parts to fall off. Therefore, the deformation of the corner template 3 of the joint after grouting can be completely eliminated. Figure 7 The embodiment shown differs from the aforementioned installation method in that the middle diagonal brace 5 is connected to the lower connector 541, and the diagonal braces 5 on both sides are connected to the upper connector 541.

[0031] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0032] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0033] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A beam-column joint formwork fixing tool, characterized in that: It includes a right-angle corner fixer and three diagonal braces. The corner fixer has a fixing plate welded to its outer side, and the fixing plate has fixing holes. Each of the three diagonal braces includes a support rod in the middle. The support rod is connected to the fixing plate through an upper connector at its upper end, and is connected to three wheel buckles on the full-span frame adjacent to the corner fixer through a lower connector at its lower end.

2. The beam-column joint formwork fixing tool as described in claim 1, characterized in that: The upper connector and the lower connector have the same structure. The upper connector includes a connector head with a horizontally open front end snap-fit ​​seam in the middle. A pin hole is provided vertically from the top to the bottom of the connector head, penetrating the snap-fit ​​seam, and the pin hole is equipped with a pin.

3. The beam-column joint formwork fixing tool as described in claim 2, characterized in that: The upper connector is connected to the support rod via a hinge joint, and the hinge axis of the hinge joint is horizontal and perpendicular to the length direction of the support rod. The lower connector is connected to the support rod via a universal joint.

4. The beam-column joint formwork fixing tool as described in claim 3, characterized in that: The support rod is a telescopic rod, including a second connecting rod and a first connecting rod inserted into the second connecting rod, and a locking bolt is provided on the second connecting rod.

5. The beam-column joint formwork fixing tool as described in claim 4, characterized in that: The support rod is a round steel tube, and an directional plane extending along the length direction is provided on the part where the first connecting rod is inserted into the second connecting rod, and the directional plane contacts the locking bolt.

6. The beam-column joint formwork fixing tool as described in claim 3, characterized in that: Install two fixing plates, one above the other, on the corner fixing device. The middle diagonal brace connects to the lower fixing plate, and the two diagonal braces on both sides connect to the upper fixing plate.

7. The beam-column joint formwork fixing tool as described in claim 1, characterized in that: The corner retainer is made of Q235B material.

8. The beam-column joint formwork fixing tool as described in claim 1, characterized in that: The height of the external corner fixer is 450mm, the width of the two wings is 150mm, and the thickness of the plate is 5mm.

9. The beam-column joint formwork fixing tool as described in any one of claims 1 to 8, characterized in that: The fixing plate is a fan-shaped plug-in plate I, which is cut from an annular ring buckle and has plug-in holes I.

10. The beam-column joint formwork fixing tool as described in any one of claims 1 to 8, characterized in that: The fixing plate is an L-shaped plug-in plate, and plug-in holes II are provided at both ends and at the right angles of the plug-in plate.

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