Inside corner formwork support device and method of using same
By designing a support device for the internal corner formwork, and utilizing components such as ball joints and fixing pins, the stable installation and fixation of the internal corner formwork is achieved, solving the problem of fixing the internal corner formwork in the inclined tapering structure of the core tube, and ensuring construction safety and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI CONSTRUCTION FIRST CONSTRUCTION (GROUP) CO LTD
- Filing Date
- 2023-08-07
- Publication Date
- 2026-07-24
AI Technical Summary
How to effectively install and fix the internal corner formwork of the core tube inclined tapering structure, especially in the erection of the internal corner formwork between the external wall and the wall connected to it, is a problem that existing technologies cannot effectively fix.
A corner formwork support device is provided, including a main shaft, a slider, a strut, a support plate, a folding tie beam, and a fixing rod. The strut and support plate are connected by a ball joint structure, which enables adjustable expansion and contraction of the strut and support plate. The device is fixed to a single-sided formwork system using fixing pins and ropes to ensure stable installation of the corner formwork.
It achieves stable fixation of the internal corner formwork, resists the lateral pressure generated by the pouring concrete, ensures construction safety and reliability, avoids the risk of formwork tilting and falling, and improves construction safety and efficiency.
Smart Images

Figure CN116971592B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building engineering technology, and in particular to a corner formwork support device and its usage method. Background Technology
[0002] The core tube, constructed using an integrated climbing steel platform formwork, will form a contracting structure at its upper end. To avoid abrupt changes in stiffness during this contraction that could negatively impact the overall structure, a sloping tapering structure can be employed to reduce the core tube's planar area. Compared to traditional tapering methods, this method offers a continuous change in the cross-sectional area of the contracting core tube and improves space utilization. The exterior walls of the sloping tapering structure are inclined walls. The inner or outer sides of these walls can be constructed using a single-sided formwork system. At the internal corners between the exterior wall and its connecting walls, corner formwork is required. This corner formwork is then joined with the single-sided formwork systems on both sides to complete the construction of the inner formwork for the exterior wall and its connecting walls. Therefore, how to install and fix the corner formwork for the sloping tapering structure of the core tube is a crucial technical problem that needs to be solved in this field. Summary of the Invention
[0003] The purpose of this invention is to provide a corner template support device and its usage method to solve the problem of how to install and fix the corner template of the core tube with an oblique tapering structure.
[0004] To solve the above-mentioned technical problems, the present invention provides a corner template support device, comprising:
[0005] Main spindle;
[0006] A slider is fitted and slidably disposed on the shaft of the main shaft;
[0007] There are two support rods, one end of which is symmetrically hinged to the slider. The support rods can open or close relative to the main shaft.
[0008] The support plate consists of two pieces. One end of each support plate is symmetrically mounted on the top of the main shaft via a hinge rod. The included angle between the two support plates is opposite to the included angle between the two support rods. The other end of each support rod is respectively hinged to one of the support plates. A through circular hole is provided on the other end of each support plate.
[0009] The folding pull beam includes a first rotating rod and a second rotating rod located below the slider and rotatably mounted on the main shaft. The first rotating rod and the second rotating rod are distributed on both sides of the main shaft. The first rotating rod and the second rotating rod are slidably mounted on the support plate on the corresponding side through a hinge seat. The end of the first rotating rod and the second rotating rod away from the main shaft is provided with a fixing buckle, and a pull rope is provided between the two fixing buckles.
[0010] A fixing rod is adjustablely located at the end of the main shaft.
[0011] Furthermore, in the corner template support device provided by the present invention, the connection node between the support rod and the slider is a ball joint structure, the connection node between the support rod and the support plate is a ball joint structure, the connection node between the first rotating rod and the support plate is a ball joint structure, the connection node between the second rotating rod and the support plate is a ball joint structure, the top end of the hinge rod and the main shaft rod is a ball joint structure, and the connection node between the hinge rod and the support plate is a ball joint structure or a shaft hinge.
[0012] Furthermore, in the corner template support device provided by the present invention, the slider is a circular ring.
[0013] Furthermore, in the corner template support device provided by the present invention, the support plate is provided with a sliding groove for the hinge seat to slide.
[0014] Furthermore, in the internal corner template support device provided by the present invention, the sliding groove is a T-shaped groove.
[0015] Furthermore, in the corner template support device provided by the present invention, the pull rope is a steel wire rope.
[0016] To solve the above-mentioned technical problems, the present invention also provides a method for using a corner template support device, comprising:
[0017] Before using the corner formwork support device;
[0018] Open the fastener to release the rope from its restraint;
[0019] Push the slider along the main shaft to its top, causing the two support rods to open relative to the main shaft at an angle, which in turn causes the two support plates to open relative to the main shaft at an angle that matches the angle of the internal corner template of the core tube's obliquely tapering structure; at the same time as the two support plates open, the first rotating rod and the second rotating rod change from a folded state to an open state; rotate the support plate around its own length centerline through the hinge rod so that the outer side of the support plate is supported on the internal corner template;
[0020] Close the retaining buckle and secure the pull cord using the retaining buckle;
[0021] The support plate is embedded in the transverse back rib of the single-sided template system that is spliced with the internal corner template. The internal corner template support device is fixed on the single-sided template system by passing the fixing pin through the round hole of the support plate, so as to fix the internal corner template of the core tube inclined tapering structure through the internal corner template support device.
[0022] Furthermore, the method of using the internal corner template support device provided by the present invention involves sliding the folded tie beam on two support plates to keep the opening angle of the two support plates constant.
[0023] Furthermore, the method of using the corner template support device provided by the present invention...
[0024] After the use of the internal corner formwork support device;
[0025] Pull out the fixing pin on the internal corner formwork support device to release the constraint of the internal corner formwork support device on the single-sided formwork support system;
[0026] The corner formwork is disassembled by relying on the gravity of the corner formwork through the retractable corner formwork support device.
[0027] Open the fastener to release the rope from its restraint;
[0028] Pull the slider back along the main shaft to its end, causing the two support rods to close relative to the main shaft at a closed angle, which in turn causes the two support plates to close relative to the main shaft at a closed angle; at the same time as the two support plates close, the first rotating rod and the second rotating rod change from the open state to the folded state;
[0029] Close the retaining buckle and secure the pull rope using the retaining buckle.
[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0031] The present invention provides a corner template support device and its usage method, which fixes and installs the corner template of the core tube inclined tapering structure, thereby solving the problem that the corner template cannot be fixed by tie bolts.
[0032] The corner formwork support device and its usage method provided by this invention are used to install and fix the corner formwork during the corner formwork installation stage; and during the pouring stage of the core tube inclined tapering structure, the corner formwork support device resists the lateral pressure generated by the poured concrete, ensuring the safety and reliability of the construction of the core tube inclined tapering structure. Attached Figure Description
[0033] Figure 1 A three-dimensional structural diagram of the core tube's obliquely tapering structure;
[0034] Figure 2This is a schematic diagram of the internal corner formwork support device installed on the internal corner formwork of the core tube's inclined tapering structure;
[0035] Figures 3 to 4 This is a partial structural diagram of the corner formwork support device installed on the corner formwork of the inclined tapering structure of the core tube;
[0036] Figure 5 This is a schematic diagram of the three-dimensional structure of the internal corner template;
[0037] Figure 6 This is a structural schematic diagram of the corner formwork support device;
[0038] Figure 7 This is an exploded view of the first rotating rod and the second rotating rod;
[0039] Figure 8 This is a schematic diagram of the structure connecting the main shaft and the support plate via a hinge rod;
[0040] As shown in the figure:
[0041] 100. Corner formwork support device;
[0042] 110. Main spindle;
[0043] 120. Slider;
[0044] 130. Support pole;
[0045] 140. Support plate;
[0046] 150. Hinge rod;
[0047] 160. Folding pull beam; 161. First rotating rod; 162. Second rotating rod; 163. Fixing buckle; 164. Pull rope;
[0048] 170. Transverse lever;
[0049] 200. Internal corner template;
[0050] 300. Single-sided template system; 310. Back rib;
[0051] 400, fixed pin;
[0052] 500. Core tube with oblique tapering structure. Detailed Implementation
[0053] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0054] Please refer to Figures 6 to 8 This invention provides a corner template support device 100, comprising: a main shaft 110, a slider 120, a support rod 130, a support plate 140, a hinge rod 150, a folding tie beam 160, and a fixing rod 170. Wherein:
[0055] The main shaft 110 can be a round rod with a top end and a bottom end.
[0056] A slider 120 is sleeved and slidably mounted on the shaft of the main shaft 110. The slider can be a ring.
[0057] There are two support rods 130, one end of which is symmetrically hinged to the slider 120. The support rods 130 can open or close relative to the main shaft 110. The connection node between the support rods 130 and the slider 120 can be a ball joint structure.
[0058] Two support plates 140 are provided, one end of which is symmetrically mounted on the top of the main shaft 110 via hinge rods 150. The included angle between the two support plates 140 is opposite to the included angle between the two struts 130. The other end of each strut 130 is hinged to one of the support plates 140. Each support plate 140 has a through hole 141 at its other end. The connection node between the strut 130 and the support plate 140 can be a ball joint structure, the top of the hinge rod 150 and the main shaft 110 can be a ball joint structure, and the connection node between the hinge rod 150 and the support plate 140 can be a ball joint structure or a shaft hinge structure. Figure 8 The example illustrates that the connection node between the hinge rod 150 and the support plate 140 is a shaft hinge structure.
[0059] The folding pull beam 160 includes a first rotating rod 161 and a second rotating rod 162 rotatably mounted on the main shaft 110 below the slider 120. The first rotating rod 161 and the second rotating rod 162 are distributed on both sides of the main shaft 110. The first rotating rod 161 and the second rotating rod 162 are slidably mounted on the support plate 140 on the corresponding side via a hinge seat. A fixing buckle 163 is provided at the end of the first rotating rod 161 and the second rotating rod 162 away from the main shaft 110, and a pull rope 164 is provided between the two fixing buckles 163. The connection node between the first rotating rod 161 and the support plate 140 can be a ball joint structure, and the connection node between the second rotating rod 162 and the support plate 140 can be a ball joint structure.
[0060] The fixing rod 170 is adjustablely located at the end of the main shaft 110.
[0061] Please refer to Figure 6To enable the folding tie beam 160 to slide on the two support plates 140, the corner template support device 100 provided in this embodiment of the invention has a sliding groove on the support plate 140 for the hinge seat to slide. To ensure reliable sliding of the folding tie beam 160 on the sliding groove, the sliding groove is a T-shaped groove.
[0062] Please refer to Figure 6 In order to achieve the folding of the corner template support device 100, the corner template support device 100 provided in this embodiment of the invention can have a pull rope 164, which can be a soft rope such as a steel wire rope.
[0063] Please refer to Figures 1 to 6 The present invention also provides a method for using the corner template support device 100, which may include the following steps:
[0064] Step 601: Before using the corner template support device 100, open the fixing buckle 163 and release the restraint of the pull rope 164.
[0065] Step 602: Push the slider 120 along the main shaft 110 toward its top, causing the two support rods 130 to open relative to the main shaft 110, and causing the two support plates 140 to open relative to the main shaft 110, so that they match the angle of the inner corner template 200 of the core tube oblique tapering structure 500; at the same time as the two support plates 140 open, the first rotating rod 161 and the second rotating rod 162 are changed from the folded state to the open state; rotate the support plate 140 around its own length centerline through the hinge rod 150 so that the outer side of the support plate 140 is supported on the inner corner template 200.
[0066] Step 603: Close the fixing buckle 163 to secure the pull rope 164.
[0067] Step 604: The support plate 140 is embedded in the transverse back rib 310 of the single-sided template system 300, which is spliced with the internal corner template 200. The internal corner template support device 100 is fixedly installed on the single-sided template system 300 by passing the fixing pin 400 through the round hole 141 of the support plate 140, so as to fix the internal corner template 200 of the core tube inclined tapering structure 500 through the internal corner template support device 100. The transverse back rib 310 can be composed of two channel steels spliced back to back.
[0068] To maintain the opening angle of the two support plates 140, the method of using the internal corner template support device 100 provided in this embodiment of the invention may further include:
[0069] Step 605: The folding tie beam 160 slides on the two support plates 140 to keep the opening angle of the two support plates 140 unchanged.
[0070] The method of using the corner template support device 100 provided in this embodiment of the invention may further include:
[0071] Step 606: After the corner template support device 100 is used, pull out the fixing pin 400 on the corner template support device 100 to release the constraint of the corner template support device 100 on the single-sided template support system 300.
[0072] Step 607: The corner formwork support device 100 is retracted, and the corner formwork 200 is dismantled by gravity. This prevents the corner formwork 200 from swinging out during dismantling and rapidly impacting the overall climbing steel platform formwork and the construction workers on it, thus avoiding the safety risks of the corner formwork 200 tipping over or falling under unrestrained conditions, thereby ensuring the safety of the corner formwork 200 during dismantling.
[0073] Step 608: Open the fixing buckle 163 to release the restraint of the pull rope 164.
[0074] Step 609: Pull the slider 120 back along the main shaft 110 to its end, causing the two support rods 130 to close relative to the main shaft 110 at a closed angle, and causing the two support plates 140 to close relative to the main shaft 110 at a closed angle; at the same time as the two support plates 140 close, the first rotating rod 161 and the second rotating rod 162 are changed from the open state to the folded state.
[0075] Step 610: Close the fixing buckle 163 to secure the pull rope 164.
[0076] The internal corner template support device 100 and its usage method provided in this embodiment of the invention fix the internal corner template 200 of the core tube inclined tapering structure 500 by means of the internal corner template support device 100, so as to solve the problem that the internal corner template 200 cannot be fixed by tie bolts.
[0077] The corner formwork support device 100 and its usage method provided in this embodiment of the invention are used to install and fix the corner formwork 200 during the corner formwork installation stage; and during the pouring stage of the core tube inclined tapering structure 500, the corner formwork support device 100 is used to resist the lateral pressure generated by the pouring concrete, thereby ensuring the safety and reliability of the construction of the core tube inclined tapering structure 500.
[0078] The internal corner formwork support device 100 and its usage method provided in this embodiment of the invention, wherein the folding tie beam 160 forms a stable triangular support system through the first rotating rod 161, the second rotating rod 162 and the pull rope 164, so as to maintain the opening angle of the two support plates 140 through the folding tie beam 160. The transmission relationship of the lateral force generated by pouring concrete is: internal corner formwork 200 - support plate 140 - strut 130 - slider 120 - folding tie beam 160.
[0079] The main shaft 110 is the core of the mechanical movement of the entire device. The movement of other components is based on the movement of the main shaft 110. During the template installation stage, it can push the inside corner template out to a position close to the wall and temporarily fix it to the overall climbing steel platform formwork. During the concrete pouring stage, it is responsible for transferring the pressure transmitted from the support rod 130 to the folding tie beam 160.
[0080] The transverse rod 160 can move horizontally on the main shaft 110 to connect to the inner cylinder frame of the integral climbing steel platform mold frame.
[0081] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.
Claims
1. A method of using a corner template support device, characterized in that, The corner template support device includes: Main spindle; A slider is fitted and slidably disposed on the shaft of the main shaft; There are two support rods, one end of which is symmetrically hinged to the slider. The support rods can open or close relative to the main shaft. The support plate consists of two pieces. One end of each support plate is symmetrically mounted on the top of the main shaft via a hinge rod. The included angle between the two support plates is opposite to the included angle between the two support rods. The other end of each support rod is respectively hinged to one of the support plates. A through circular hole is provided on the other end of each support plate. The folding pull beam includes a first rotating rod and a second rotating rod located below the slider and rotatably mounted on the main shaft. The first rotating rod and the second rotating rod are distributed on both sides of the main shaft. The first rotating rod and the second rotating rod are slidably mounted on the support plate on the corresponding side through a hinge seat. The end of the first rotating rod and the second rotating rod away from the main shaft is provided with a fixing buckle, and a pull rope is provided between the two fixing buckles. A fixing rod is adjustablely disposed at the end of the main shaft; the method includes: Before using the corner formwork support device; Open the fastener to release the rope from its restraint; Push the slider along the main shaft to its top, causing the two support rods to open relative to the main shaft at an angle, which in turn causes the two support plates to open relative to the main shaft at an angle that matches the angle of the internal corner template of the core tube's obliquely tapering structure; at the same time as the two support plates open, the first rotating rod and the second rotating rod change from a folded state to an open state; rotate the support plate around its own length centerline through the hinge rod so that the outer side of the support plate is supported on the internal corner template; Close the retaining buckle and secure the pull cord using the retaining buckle; The support plate is embedded in the transverse back rib of the single-sided template system that is spliced with the internal corner template. The internal corner template support device is fixed on the single-sided template system by passing the fixing pin through the round hole of the support plate, so as to fix the internal corner template of the core tube inclined tapering structure through the internal corner template support device.
2. The method of using the corner template support device according to claim 1, characterized in that, The folding tie beam slides on the two support plates to keep the opening angle of the two support plates constant.
3. The method of using the corner template support device according to claim 1, characterized in that, After the use of the internal corner formwork support device; Pull out the fixing pin on the internal corner formwork support device to release the constraint of the internal corner formwork support device on the single-sided formwork support system; The corner formwork is disassembled by relying on the gravity of the corner formwork through the retractable corner formwork support device. Open the fastener to release the rope from its restraint; Pull the slider back along the main shaft to its end, causing the two support rods to close relative to the main shaft at a closed angle, which in turn causes the two support plates to close relative to the main shaft at a closed angle; at the same time as the two support plates close, the first rotating rod and the second rotating rod change from the open state to the folded state. Close the retaining buckle and secure the pull rope using the retaining buckle.
4. The method of using the corner template support device according to claim 1, characterized in that, In the internal corner template support device, the connection node between the support rod and the slider is a ball joint structure, the connection node between the support rod and the support plate is a ball joint structure, the connection node between the first rotating rod and the support plate is a ball joint structure, the connection node between the second rotating rod and the support plate is a ball joint structure, the top end of the hinge rod and the main shaft rod is a ball joint structure, and the connection node between the hinge rod and the support plate is a ball joint structure or a shaft hinge.
5. The method of using the corner template support device according to claim 1, characterized in that, In the internal corner template support device, the slider is a circular ring.
6. The method of using the corner formwork support device according to claim 1, characterized in that, In the internal corner template support device, the support plate is provided with a sliding groove for the hinge seat to slide.
7. The method of using the corner template support device according to claim 6, characterized in that, The groove is a T-shaped groove.
8. The method of using the corner formwork support device according to claim 1, characterized in that, In the internal corner template support device, the pull rope is a steel wire rope.