Secondary structure formwork supporting tool and construction method

Abstract

The invention relates to a secondary structure formwork supporting tool and a construction method, and relates to the field of formwork supporting equipment for building construction, the secondary structure formwork supporting tool comprises a main supporting assembly, the main supporting assembly comprises a main rod, an auxiliary rod, a locking piece, a fastening stand column and an adjusting ring, and the main rod is parallel to the first direction; the auxiliary rod is arranged in a hollow mode and is parallel to the first direction. One end of the main rod is inserted into an inner cavity of the auxiliary rod in the first direction so that the main rod can be located at the top end of the auxiliary rod. The locking piece is connected between the main rod and the auxiliary rod and used for fixing the main rod to the auxiliary rod; the fastening stand column is parallel to the first direction, the fastening stand column is located at the bottom end of the auxiliary rod, and the fastening stand column is inserted into the auxiliary rod; the adjusting ring is in threaded connection with the fastening stand column, and the bottom wall of the auxiliary rod is in lap joint with the adjusting ring. The formwork supporting device has the effect of being suitable for small-range formwork supporting.

Description

Technical Field

[0001] The present application relates to the field of formwork support equipment for building construction, and in particular to a secondary structure formwork support tool and a construction method. Background Art

[0002] In the field of building construction, secondary structure formwork support is crucial to ensuring the stability of the building structure and the quality of construction.

[0003] Currently, several methods are commonly used to support secondary structure formwork. One is the traditional timber support system, where timber planks are arranged at specific spacings and layouts to form a support structure for the formwork. This method is relatively common and the materials are relatively easy to obtain. Another method is the steel pipe and fastener support system, which utilizes steel pipes and fasteners for assembly, allowing for flexible construction based on the formwork's shape and size.

[0004] The above solution is suitable for large-area formwork support, but under some conditions, especially at the corners, the structural column formwork cannot be effectively reinforced with the help of surrounding buildings. If the previous method is used, it will lead to unnecessary waste. Therefore, providing a support device suitable for small-scale formwork support is an urgent problem to be solved. Summary of the Invention

[0005] In order to provide a support device suitable for small-scale formwork support, the present application provides a secondary structure formwork support tool and construction method.

[0006] In a first aspect, the present application provides a secondary structure formwork support tool, which adopts the following technical solution: A secondary structure formwork support tool includes a main support assembly, the main support assembly comprising: a main rod, wherein the main rod is parallel to the first direction; A secondary rod, wherein the secondary rod is hollow and parallel to the first direction; one end of the main rod is inserted into the inner cavity of the secondary rod along the first direction, so that the main rod is located at the top end of the secondary rod; a locking member connected between the main rod and the auxiliary rod to fix the main rod to the auxiliary rod; a fastening column, the fastening column being parallel to the first direction, the fastening column being located at the bottom end of the auxiliary rod, and the fastening column being inserted into the auxiliary rod; and An adjusting ring is threadedly connected to the fastening column, and the bottom wall of the auxiliary rod is overlapped on the adjusting ring.

[0007] By adopting the above technical solution, during construction, the main rod is inserted at the top of the auxiliary rod, and the two are fixed with a locking piece. In addition, a fastening column is inserted at the bottom end of the auxiliary rod; after the main rod, auxiliary rod and fastening column are assembled, they are erected between the ground and the formwork; therefore, the main rod is inserted in the inner cavity of the auxiliary rod and fixed with a locking piece, and the relative position and fixation of the two can be flexibly adjusted to meet the requirements of different formwork support heights; the fastening column is inserted at the bottom end of the auxiliary rod, and the bottom wall of the auxiliary rod is overlapped on the adjustment ring threadedly connected to the fastening column, and the height of the auxiliary rod can be changed by rotating the adjustment ring, so that the main rod and the fastening column can be tightly supported on the ground and the formwork, thereby completing the formwork support work; therefore, the formwork support can be achieved through a single main support assembly, and there is no need to build a large-area formwork support system.

[0008] Optionally, a guide bar is fixedly connected to the outer peripheral wall of the auxiliary rod, and the guide bar is parallel to the auxiliary rod.

[0009] By adopting the above technical solution, the position of the auxiliary rod can be adjusted by the guide strip for construction workers to play a guiding role.

[0010] Optionally, a force rod is fixedly connected to the adjustment ring, and the force rod is perpendicular to the first direction.

[0011] By adopting the above technical solution, the force rod on the adjustment ring perpendicular to the first direction can easily apply force to the adjustment ring, making it easy to rotate the adjustment ring to adjust the height of the secondary rod, thereby tightening the main rod and the fastening column between the ground and the template.

[0012] Optionally, an auxiliary supporting device is further included, and the auxiliary supporting device includes: a bottom plate, the bottom plate being perpendicular to the first direction and having a through hole for the auxiliary rod to pass through; and A plurality of leg assemblies, the leg assemblies comprising: a supporting leg, one end of which is fixedly connected to the base plate and the other end of which is connected to a mounting base; and Casters, each mounting seat is correspondingly connected to a caster.

[0013] By adopting the above technical solution, the support legs of the leg assembly are connected to the base plate and the mounting seat, and the entire support tool can be easily moved through the provided casters, thereby improving construction flexibility.

[0014] Optionally, the through-hole is used for the auxiliary rod and the guide bar to pass through, and the shape of the through-hole is adapted to the outer contour of the auxiliary rod and the outer contour of the guide bar.

[0015] By adopting the above technical solution and utilizing the design of matching the outer contour of the through-hole with the auxiliary rod and the guide strip, when the auxiliary rod is inserted into the through-hole, the auxiliary rod can be prevented from rotating along the base plate, and the auxiliary rod and the main rod can be prevented from shaking the template due to synchronous rotation with the adjusting ring.

[0016] Optionally, the leg assembly further includes: a first telescopic rod, wherein the telescopic direction of the first telescopic rod is parallel to the first direction, and one end of the first telescopic rod is fixedly connected to the support leg, and the other end of the first telescopic rod is fixedly connected to the mounting seat; and A compression spring, one end of the compression spring is fixedly connected to the support leg, and the other end is fixedly connected to the mounting seat; the expansion and contraction direction of the compression spring is parallel to the first direction.

[0017] By adopting the above technical solution, the first telescopic rod can adjust the support height by adjusting its own length. The compression spring can achieve shock absorption for the supporting legs and can also compensate for the height difference caused by uneven ground when pushing the base plate to walk.

[0018] Optionally, a connecting component is further included, and the connecting component is located on the outer peripheral side of the bottom plate; the connecting component includes: a connecting seat connected to the bottom plate; and Two clamping members, the two clamping members are symmetrically arranged with respect to a reference plane, the reference plane is perpendicular to the first direction, and the upper plate surface and the lower plate surface of the bottom plate are also symmetrically arranged with respect to the reference plane; the clamping members include: A clamping portion having a clamping surface, wherein the clamping surface is perpendicular to the first direction, and the distance between the clamping surfaces of the two clamping members in the first direction is consistent with the thickness of the bottom plate; and An inclined portion having a guiding surface, one end of the clamping portion is fixedly connected to the connecting seat, and the other end is fixedly connected to the inclined portion, and the inclined portion is located on the side of the clamping portion away from the base plate, and the distance between the two guiding surfaces gradually increases in the direction from the clamping portion to the inclined portion.

[0019] By adopting the above technical solution, when two base plates need to be connected, it is only necessary to insert one of the base plates between the two clamping parts on the other base plate; the two base plates can be connected using a connecting assembly, the two base plates can be adjusted to the required angle and the supporting area of ​​the entire support tool can be expanded, thereby improving the overall stability of the equipment; in addition, the guiding surface of the inclined part can be used to allow the clamped base plate to smoothly enter between the two clamping parts when the initial heights are different, thereby improving the convenience of operation.

[0020] Optionally, a second telescopic rod is connected between the base plate and the connecting seat, the telescopic direction of the second telescopic rod coincides with the diameter of the virtual circle, and the central axis of the virtual circle coincides with the central axis of the main rod; In the clamping member installed on the second telescopic rod, the clamping portion and the inclined portion are arranged along the telescopic direction of the second telescopic rod.

[0021] By adopting the above technical solution, when it is inconvenient to move the clamped base plate, the clamping member can be moved by adjusting the length of the second telescopic rod, and then the clamping member can clamp the other base plate, thereby enhancing the flexibility and convenience of operation.

[0022] Optionally, a rotating assembly is further included, wherein the rotating assembly includes: A slider, the slider being connected to the base plate and rotatable around a virtual circle; One end of the second telescopic rod away from the connecting seat is fixedly connected to the sliding block.

[0023] By adopting the above technical solution, the position and orientation of the clamping member can be flexibly adjusted according to actual needs by rotating the slider, thereby further improving the flexibility and adaptability of the support tool.

[0024] In a second aspect, the present application provides a construction method for secondary structure formwork support, which adopts the following technical solution: A construction method for secondary structure formwork support comprises the following steps: S1: Insert the main rod into the secondary rod and fix the main rod to the secondary rod with a locking piece; S2: Insert the fastening column into the auxiliary rod and make the auxiliary rod overlap the adjusting ring; S3: Place the assembled main pole, auxiliary pole and fastening column between the ground and the formwork; S4: Rotate the adjusting ring to make the main rod and the fastening column press tightly between the ground and the template.

[0025] By adopting the above technical solution, the main rod is first inserted into the secondary rod and fixed, and then the fastening column is inserted into the secondary rod and the secondary rod is overlapped to the adjustment ring. Then the assembled parts are placed between the ground and the formwork, and finally the adjustment ring is rotated to make the main rod and the fastening column press against the ground and the formwork, so that the formwork can be supported by the secondary structure formwork support tool.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The setting of main rod, auxiliary rod, fastening column and adjustment ring. The height of the auxiliary rod can be adjusted by rotating the adjustment ring, thereby achieving small-scale support for the formwork, which is easy to operate and improves construction efficiency; 2. The guide strips are set on the outer wall of the auxiliary rod to prevent the auxiliary rod and the main rod from shaking the template due to synchronous rotation with the adjusting ring, thus ensuring the stability of the template support; 3. Connecting multiple base plates through connecting components can expand the support area of ​​the entire support tool, improve the overall stability of the equipment, and reduce the possibility of the main support component falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of the main support assembly in the embodiment of the present application from a first viewing angle; Figure 2 is a structural schematic diagram of the main support assembly in an embodiment of the present application at a second viewing angle; Figure 3 This is a schematic structural diagram of the bottom plate in an embodiment of the present application; Figure 4 This is a schematic structural diagram of the leg assembly in an embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the connection component in the embodiment of the present application; Figure 6 It is a structural diagram of the rotating assembly in an embodiment of the present application.

[0028] Explanation of the accompanying drawings: 1. Main support assembly; 11. Main rod; 111. First locking hole; 12. Auxiliary rod; 121. Guide strip; 122. Second locking hole; 13. Locking piece; 14. Fastening column; 15. Adjusting ring; 151. Force rod; 16. Upper rubber pad; 17. Lower rubber pad; 2. Bottom plate; 21. Through hole; 22. Slide groove; 3. Leg assembly; 31. Support leg; 32. Caster; 33. Mounting seat; 34. First telescopic rod; 341. Fixed rod; 342. Movable rod; 343. First screw; 35. Compression spring; 4. Connecting assembly; 41. Connecting seat; 42. Clamping piece; 421. Clamping portion; 4211. Clamping surface; 422. Inclined portion; 4221. Guide surface; 423. Second screw; 5. Second telescopic rod; 6. Rotating assembly; 61. Slider; 62. Connecting block. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The embodiment of the present application discloses a secondary structure formwork support tool. Figure 1 and Figure 2 The secondary structure formwork support tool includes a main support assembly 1, the main support assembly 1 includes a main rod 11, a secondary rod 12, a locking member 13, a fastening column 14 and an adjusting ring 15, and the main rod 11, the secondary rod 12 and the fastening column 14 are all parallel to the first direction; The auxiliary rod 12 is hollow, and both the auxiliary rod 12 and the main rod 11 are hollow cylindrical. One end of the auxiliary rod 12 is a top end and the other end is a bottom end. One end of the main rod 11 is inserted into the inner cavity of the auxiliary rod 12 along the first direction so that the main rod 11 is located at the top end of the auxiliary rod 12. The locking member 13 is connected between the main rod 11 and the auxiliary rod 12 to fix the main rod 11 to the auxiliary rod 12. In some embodiments of the present application, a guide bar 121 is fixedly connected to the outer peripheral wall of the auxiliary rod 12, and the guide bar 121 is parallel to the auxiliary rod 12. Specifically, a first locking hole 111 is formed on the main rod 11 along a direction perpendicular to the first direction, and a plurality of first locking holes 111 are distributed on the main rod 11 along the first direction; a second locking hole 122 is formed on the auxiliary rod 12 along a direction perpendicular to the first direction, and a plurality of second locking holes 122 are distributed on the auxiliary rod 12 along the first direction; in this embodiment, the locking member 13 is a long bolt, and when the main rod 11 is inserted into the auxiliary rod 12, the locking member 13 can pass through the first locking hole 111 and the locking hole at the same time to connect the main rod 11 and the auxiliary rod 12; in addition, a locking member 13 can also be separately inserted into the first locking hole 111 on the main rod 11 to connect the main rod 11 with other structures; The fastening column 14 is located at the bottom end of the auxiliary rod 12, and the fastening column 14 can be inserted into the auxiliary rod 12 from the bottom end of the auxiliary rod 12, that is, the main rod 11 is inserted into the top end of the auxiliary rod 12, and the fastening column 14 is inserted into the bottom end; the fastening column 14 is a threaded column, and the adjusting ring 15 is threadedly connected to the fastening column 14, and the bottom wall of the auxiliary rod 12 is overlapped with the adjusting ring 15; when the height of the auxiliary rod 12 needs to be adjusted, it is only necessary to rotate the adjusting ring 15 along the fastening column 14 to change the height of the adjusting ring 15 on the fastening column 14, so that the height of the auxiliary rod 12 overlapped on the adjusting ring 15 can be adjusted; in the process of rotating the adjusting ring 15, in order to apply force to the adjusting ring 15, a force rod 151 is fixedly connected to the adjusting ring 15, and the force rod 151 is perpendicular to the first direction. In some embodiments of the present application, an upper rubber pad 16 is fixedly connected to one end of the main rod 11 away from the fastening column 14 , and a lower rubber pad 17 is fixedly connected to one end of the fastening column 14 away from the main rod 11 .

[0031] When installing the main support rod, first fix the main rod 11 and the auxiliary rod 12 with the locking piece 13, and insert the fastening column 14 into the auxiliary rod 12. Then, stand the assembled main rod 11, auxiliary rod 12 and fastening column 14 between the ground and the floor. Then, rotate the adjusting ring 15, and the auxiliary rod 12 can be driven upward by the adjusting ring 15, which can drive the auxiliary rod 12 to move upward, so that the main support assembly 1 can be used to tighten the formwork to achieve support for the formwork.

[0032] Reference Figure 3In some embodiments of the present application, an auxiliary support device is also included, the auxiliary support device includes a base plate 2 and a plurality of leg assemblies 3; the base plate 2 is perpendicular to the first direction. In this embodiment, the base plate 2 is in the shape of a disk coaxial with the virtual circle, and the central axis of the virtual circle coincides with the central axis of the auxiliary rod 12; a through hole 21 is provided on the base plate 2 for the auxiliary rod 12 to pass through, and the through hole 21 is used for the auxiliary rod 12 and the guide bar 121 to pass through, and the shape of the through hole 21 is adapted to the outer contour of the auxiliary rod 12 and the outer contour of the guide bar 121. Therefore, since the hole wall of the through hole 21 has a limiting effect on the guide bar 121, the auxiliary rod 12 can be prevented from rotating along the base plate 2 due to the setting of the guide bar 121 during the sliding process along the base plate 2.

[0033] Reference Figure 3 and Figure 4 There are multiple leg assemblies 3 evenly distributed around the virtual circumference on the base plate 2. The leg assembly 3 includes a support leg 31 and a caster 32. One end of the support leg 31 is fixedly connected to the bottom wall of the base plate 2, and the other end is connected to a mounting seat 33. Each mounting seat 33 is connected to a corresponding caster 32. The caster 32 is preferably a universal wheel with a brake lock. When the position of the base plate 2 needs to be adjusted, it is only necessary to push the base plate 2 to the desired position.

[0034] Reference Figure 3 and Figure 4 In some embodiments of the present application, the leg assembly 3 further includes a first telescopic rod 34 and a compression spring 35. The telescopic direction of the first telescopic rod 34 is parallel to the first direction, and one end of the first telescopic rod 34 is fixedly connected to the supporting leg 31, and the other end is fixedly connected to the mounting seat 33; the first telescopic rod 34 includes a fixed rod 341, a movable rod 342 and a first screw 343. The fixed rod 341 is a hollow rod, and the movable rod 342 is passed through the fixed rod 341 and can slide along the first direction under the guidance of the inner wall of the guide rod. The first screw 343 is passed through the fixed rod 341 and is threadedly connected to the fixed rod 341. The first screw 343 passes through the fixed rod 341 and presses against the outer wall of the movable rod 342. By tightening the first screw 343, the fixed rod 341 and the movable rod 342 can be fixed, thereby fixing the length of the first telescopic rod 34; in this embodiment, the fixed rod 341 is fixedly connected to the supporting leg 31, and the movable rod 342 is fixedly connected to the mounting seat 33; The expansion and contraction direction of the compression spring 35 is parallel to the first direction, and one end of the compression spring 35 is fixedly connected to the support leg 31, and the other end is fixedly connected to the mounting seat 33, so that the compression spring 35 can realize shock absorption of the support leg 31, and in the process of pushing the base plate 2 to walk, the expansion and contraction of the compression spring 35 can compensate for the height difference caused by the uneven ground; in this embodiment, the compression spring 35 is sleeved on the outer periphery of the first telescopic rod 34; in the process of driving the adjustment ring 15 to rotate, since the auxiliary rod 12 is overlapped on the adjustment ring 15, the guide bar 121 can prevent the auxiliary rod 12 and the main rod 11 from rotating synchronously with the adjustment ring 15, thereby causing the template to shake.

[0035] Reference Figure 5 and Figure 6 In some embodiments of the present application, a connecting assembly 4 is further included. At least one connecting assembly 4 is provided on the bottom plate 2 and is located on the outer peripheral side of the bottom plate 2. The connecting assembly 4 includes a connecting seat 41 and two clamping members 42. The connecting seat 41 is connected to the bottom plate 2, and the clamping members 42 are connected to the connecting seat 41. The two clamping members 42 are symmetrically arranged with respect to the reference plane, the reference plane is perpendicular to the first direction, and the upper plate surface and the lower plate surface of the bottom plate 2 are also symmetrically arranged with respect to the reference plane; the clamping member 42 includes a clamping portion 421 having a clamping surface 4211 and an inclined portion 422 having a guide surface 4221, the clamping surface 4211 is perpendicular to the first direction, and the spacing between the clamping surfaces 4211 of the two clamping members 42 in the first direction is consistent with the plate thickness of the bottom plate 2, and the gap between the two clamping surfaces 4211 can be used to accommodate another main The bottom plates 2 in the support assembly 1 can be adjusted to a desired angle and connected to expand the support area of ​​the entire support tool, thereby improving the overall stability of the device. In order to connect the two bottom plates 2 more firmly, at least one clamping portion 421 is threadedly connected to a second screw 423. When the two bottom plates 2 are connected by the two clamping members 42, the second screw 423 only needs to be passed through the clamping member 42 and then pressed against the clamped bottom plate 2 to achieve the connection between the two bottom plates 2. One end of the clamping portion 421 is fixedly connected to the connecting seat 41, and the other end is fixedly connected to the inclined portion 422, and the inclined portion 422 is located on the side of the clamping portion 421 away from the base plate 2. In the direction from the clamping portion 421 to the inclined portion 422, the distance between the two guiding surfaces 4221 gradually increases; therefore, in the process of connecting two adjacent base plates 2, even if the initial heights of the two base plates 2 are different due to terrain reasons, the clamped base plate 2 can be guided by the inclined portion 422 to enter between the two clamping portions 421, which can improve the convenience of operation.

[0036] Reference Figure 6In some embodiments of the present application, a second telescopic rod 5 is connected between the base plate 2 and the connecting seat 41, the telescopic direction of the second telescopic rod 5 coincides with the diameter of the virtual circle, and, in the clamping member 42 installed on the second telescopic rod 5, the clamping portion 421 and the inclined portion 422 are arranged along the telescopic direction of the second telescopic rod 5; therefore, when it is inconvenient to move the clamped base plate 2, the clamping member 42 can be moved by adjusting the length of the second telescopic rod 5 so that the clamping member 42 can clamp the other base plate 2.

[0037] Reference Figure 6 In some embodiments of the present application, a rotating assembly 6 is further included. The rotating assembly 6 includes a slider 61. The slider 61 is connected to the bottom plate 2 and rotates around the virtual circle. In order to guide the slider 61 to slide on the bottom plate 2, a circular groove 22 is provided on the top wall of the bottom plate 2. The circular groove 22 is coaxial with the virtual circle. The slider 61 is adapted to be located in the groove 22. The slider 61 is an arc-shaped that is adapted to the groove 22 on the circumference of the virtual circle. In addition, the cross-section of the groove wall of the groove 22 and the slider 61 is adapted to be adapted. The dovetail shape is used to guide the slider 61 to rotate around the virtual circumference by the slide groove 22. In addition, the top wall of the slider 61 is flush with the top wall of the base plate 2, so that the base plate 2 can be inserted into the connecting component 4 on the other base plate 2; the end of the telescopic rod away from the connecting seat 41 is fixedly connected to the slider 61. Specifically, the end of the telescopic rod close to the connecting seat 41 is fixedly connected to the connecting block 62, and the connecting block 62 is detachably connected to the slider 61 by screws. Therefore, the required number of clamps 42 can be installed according to actual needs.

[0038] The implementation principle of a secondary structure formwork support tool in an embodiment of the present application is: during the construction process, the main support component 1 can be used to support the formwork alone, or the auxiliary rod 12 can be inserted into the base plate 2 to support the formwork; during the construction process, multiple base plates 2 can also be fixed by the clamping member 42 and the second screw 423 to increase the overall support surface of the support tool, thereby reducing the collapse of the main support component 1.

[0039] The present application also discloses a construction method for secondary structure formwork support. The secondary structure formwork support method includes the following steps: S1: Insert the main rod 11 into the secondary rod 12 and fix the main rod 11 to the secondary rod 12 with the locking member 13; S2: Insert the fastening column 14 into the auxiliary rod 12 and make the auxiliary rod 12 overlap the adjusting ring 15; S3: Place the assembled main rod 11, auxiliary rod 12, and fastening column 14 between the ground and the formwork. During this process, it can be determined whether the auxiliary rod 12 needs to be inserted into the bottom plate 2. If it is inserted into the bottom plate 2, the position of the main support assembly 1 can be adjusted by pushing the bottom plate 2. S4: Hold the force rod 151 and apply force to the force rod 151 to rotate the adjustment ring 15 so that the main rod 11 and the fastening column 14 are pressed tightly between the ground and the template.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A secondary structure formwork support tool, characterized in that: The invention comprises a main support assembly (1), wherein the main support assembly (1) comprises: A main rod (11), wherein the main rod (11) is parallel to the first direction; A secondary rod (12), the secondary rod (12) is hollow and parallel to the first direction; one end of the main rod (11) is inserted into the inner cavity of the secondary rod (12) along the first direction, so that the main rod (11) is located at the top end of the secondary rod (12); a locking member (13), the locking member (13) being connected between the main rod (11) and the auxiliary rod (12) for fixing the main rod (11) to the auxiliary rod (12); a fastening column (14), the fastening column (14) being parallel to the first direction, the fastening column (14) being located at the bottom end of the auxiliary rod (12), and the fastening column (14) being inserted into the auxiliary rod (12); and An adjusting ring (15) is threadedly connected to the fastening column (14), and the bottom wall of the auxiliary rod (12) is overlapped with the adjusting ring (15).

2. A secondary structure formwork support tool according to claim 1, characterized in that: A guide bar (121) is fixedly connected to the outer peripheral wall of the auxiliary rod (12), and the guide bar (121) is parallel to the auxiliary rod (12).

3. A secondary structure formwork support tool according to claim 2, characterized in that: A force-adding rod (151) is fixedly connected to the adjusting ring (15), and the force-adding rod (151) is perpendicular to the first direction.

4. A secondary structure formwork support tool according to any one of claims 2-3, characterized in that: Also included is an auxiliary support device, the auxiliary support device comprising: A bottom plate (2), the bottom plate (2) being perpendicular to the first direction, and the bottom plate (2) being provided with a through hole (21) for the auxiliary rod (12) to pass through; and A plurality of leg assemblies (3), wherein the leg assemblies (3) include: A supporting leg (31), one end of the supporting leg (31) is fixedly connected to the base plate (2), and the other end is connected to a mounting base (33); and Casters (32), each mounting seat (33) is correspondingly connected to the caster (32).

5. A secondary structure formwork support tool according to claim 4, characterized in that: The through hole (21) is used for allowing the auxiliary rod (12) and the guide strip (121) to pass through, and the shape of the through hole (21) is adapted to the outer contour of the auxiliary rod (12) and the outer contour of the guide strip (121).

6. A secondary structure formwork support tool according to claim 5, characterized in that: The leg assembly (3) further comprises: a first telescopic rod (34), wherein the telescopic direction of the first telescopic rod (34) is parallel to the first direction, and one end of the first telescopic rod (34) is fixedly connected to the supporting leg (31), and the other end is fixedly connected to the mounting seat (33); and A compression spring (35), one end of the compression spring (35) is fixedly connected to the support leg (31), and the other end is fixedly connected to the mounting seat (33); the expansion and contraction direction of the compression spring (35) is parallel to the first direction.

7. A secondary structure formwork support tool according to claim 6, characterized in that: It also includes a connecting component (4), which is located on the outer peripheral side of the bottom plate (2); the connecting component (4) includes: a connecting seat (41), the connecting seat (41) being connected to the bottom plate (2); and Two clamping members (42), the two clamping members (42) are symmetrically arranged with respect to a reference plane, the reference plane is perpendicular to the first direction, and the upper plate surface and the lower plate surface of the bottom plate (2) are also symmetrically arranged with respect to the reference plane; the clamping members (42) include: A clamping portion (421) having a clamping surface (4211), wherein the clamping surface (4211) is perpendicular to the first direction, and the spacing between the clamping surfaces (4211) of the two clamping members (42) in the first direction is consistent with the thickness of the bottom plate (2); and An inclined portion (422) having a guiding surface (4221), one end of the clamping portion (421) is fixedly connected to the connecting seat (41), and the other end is fixedly connected to the inclined portion (422), and the inclined portion (422) is located on a side of the clamping portion (421) away from the bottom plate (2), and the distance between the two guiding surfaces (4221) gradually increases in the direction from the clamping portion (421) to the inclined portion (422).

8. A secondary structure formwork support tool according to claim 7, characterized in that: A second telescopic rod (5) is connected between the bottom plate (2) and the connecting seat (41), the telescopic direction of the second telescopic rod (5) coincides with the diameter of a virtual circle, and the central axis of the virtual circle coincides with the central axis of the main rod (11); In the clamping member (42) mounted on the second telescopic rod (5), the clamping portion (421) and the inclined portion (422) are arranged along the telescopic direction of the second telescopic rod (5).

9. A secondary structure formwork support tool according to claim 8, characterized in that: Also included is a rotating assembly (6), the rotating assembly (6) comprising: A slider (61), the slider (61) being connected to the base plate (2) and rotatable around a virtual circle; One end of the second telescopic rod (5) away from the connecting seat (41) is fixedly connected to the sliding block (61).

10. A construction method for formwork support using the secondary structure formwork support tool according to any one of claims 1 to 9, characterized in that: The steps include: S1: Insert the main rod (11) into the secondary rod (12), and fix the main rod (11) to the secondary rod (12) with a locking member (13); S2: Insert the fastening column (14) into the auxiliary rod (12), and make the auxiliary rod (12) overlap the adjustment ring (15); S3: Place the assembled main rod (11), auxiliary rod (12) and fastening column (14) between the ground and the template; S4: Rotate the adjusting ring (15) to make the main rod (11) and the fastening column (14) press tightly between the ground and the template.

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