Core wall diagonal framing corner formwork umbrella and method of use

Abstract

The application discloses a corner formwork umbrella of a core tube oblique collection structure and a use method thereof. The corner formwork umbrella comprises a main shaft rod, a wingspan support, a push-pull device, a side support rod, a rigid pull beam, a transverse rod, a hinged rod and a tightening mechanism. The use method is as follows: the inside cylinder frame of the overall climbing steel platform mold frame of the core tube oblique collection structure is fixed with the female corner formwork umbrella, the two wingspan supports are opened through the push-pull device to match the angle of the female corner formwork of the core tube oblique collection structure, the wingspan supports after rotation are contacted on the female corner formwork and embedded in the gap of the transverse back rabbet of the single-sided formwork system spliced with the female corner formwork, the force transmission pin is inserted on the transverse back rabbet and passes through the force transmission pin hole of the wingspan support. The application realizes the installation and fixation of the corner formwork of the core tube oblique collection structure, guarantees the safety and reliability of the core tube oblique collection structure construction and ensures the safety of the female corner formwork demolding.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a corner formwork umbrella support for a core tube with an oblique tapering structure and its application method. Background Technology

[0002] In super high-rise buildings, integral steel platform climbing formwork is commonly used for the construction of the core tube. Its advantages, such as fast construction speed, good sealing, high degree of mechanization, and ability to provide a working surface for large construction equipment like tower cranes and concrete placing booms, have led to its increasing adoption. Most super high-rise buildings require a core tube to enhance the overall tower's lateral force resistance. As the number of floors increases, the stress pattern of super high-rises gradually shifts from shear-bending to bending. The top floors experience relatively smaller bending moments compared to the bottom floors, correspondingly reducing the tensile and compressive forces on the core tube walls. To adapt to this stress pattern, the number of core tubes and the thickness of the core tube walls are often reduced to decrease the core tube's planar area and component cross-section. In some buildings, a tapering core tube structure is used to reduce the core tube's planar area. Compared to traditional core tube reduction methods, this method results in a more continuous change in the core tube's cross-sectional area, avoiding the adverse structural effects caused by sudden changes in stiffness. It also achieves structural adaptability to loads, saves materials, increases the building area of ​​the outer frame, and improves the effective utilization of space. However, the exterior walls of a tapering core tube structure are sloping walls. While most areas of the exterior walls can be constructed using a single-sided sloping wall method, special treatment is required at the corners between sloping walls or between sloping walls and straight walls. These corner formworks include external and internal corner formwork. Due to the different dimensions of the external and internal corner formworks, and other construction reasons, it is impossible to fix the formwork together using tie bolts. Therefore, how to install and fix the corner formwork of the tapering core tube structure, how to resist horizontal loads during the pouring of the sloping walls to ensure the corner quality and safety of the corner formwork, and how to construct the sloping walls have become urgent technical problems that need to be solved in this field. In addition, since the internal corner template in the corner template is a bidirectional inward inclined structure, it is at risk of overturning or falling due to gravity. Therefore, how to reduce the risk of demolding of the internal corner template is also a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a corner formwork umbrella support for a core tube with a sloping tapering structure and its usage method, in order to solve the problems of how to fix the corner formwork of the core tube with a sloping tapering structure, how to increase the lateral support force of the corner formwork during pouring, and how to reduce the safety of corner formwork removal after the construction of the sloping tapering structure.

[0004] To solve the above-mentioned technical problems, the present invention provides a corner template umbrella support for a core tube obliquely tapering structure. The corner template umbrella support includes a recessed corner template umbrella support, which comprises: a main shaft, a wingspan support, a push-pull device, a side support rod, a rigid tie beam, a lateral movement rod, a hinge rod, and a clamping mechanism. The wingspan support consists of two strip plates, with the first end of each wingspan support hinged to the top of the main shaft via a hinge rod. The connection node between the hinge rod and the main shaft is a ball joint structure, and the connection node between the hinge rod and the first end of the wingspan support is either a ball joint structure or a axial hinge. Each wingspan support... The sides are provided with sliding grooves, each groove containing a fixed hinge support and a sliding hinge support. The fixed hinge support is fixedly mounted within the groove, and the sliding hinge support is slidably mounted within the groove. A force-transmitting pin hole is provided at the second end of each wingspan support. The push-pull device is sleeved and slidably mounted on the main shaft. There are two side support rods, each with its ends hinged to the push-pull device and a fixed hinge support of one of the wingspan supports, respectively. The connection between the side support rod and the fixed hinge support is a ball joint structure. The two side support rods are symmetrically distributed on the main shaft and the push-pull device. A rigid tie beam is vertically intersectingly mounted on the main shaft. Each end of the rigid tie beam is hinged to a sliding hinge support of two wingspan supports via a hinge rod. The connection between the hinge rod and the rigid tie beam is a detachable ball joint structure, and the connection between the hinge rod and the sliding hinge support is also a ball joint structure. A clamping mechanism is mounted on the rigid tie beam and aligned with the push-pull device near the end of the main shaft. When the clamping mechanism extends, it clamps against the push-pull device; when the clamping mechanism retracts, it separates from the push-pull device. A traverse rod is mounted at the end of the main shaft. The push-pull device... When the main shaft is pushed to its top, the pusher-pull device drives the connecting wingspan supports to open relative to the main shaft through the opening angle of the two side support rods relative to the main shaft. When the two wingspan supports are open, they are symmetrically distributed on both sides of the main shaft. When the pusher-pull device is pulled back along the main shaft to its end, the pusher-pull device drives the connecting wingspan supports to close relative to the main shaft through the closing angle of the two side support rods relative to the main shaft. The wingspan supports rotate around their own length centerline through the hinge rods connected to the main shaft, the hinge rods connected to the rigid tie beam, and the fixed hinge supports connected to the side support rods.

[0005] Furthermore, in the corner template umbrella support of the core tube obliquely tapering structure provided by the present invention, the tightening mechanism is an electric lifting plate machine or a hydraulic cylinder.

[0006] Furthermore, in the corner template umbrella support of the core tube obliquely tapering structure provided by the present invention, the rigid tie beam is a fixed beam or a telescopic beam.

[0007] Furthermore, the corner template umbrella support of the core tube obliquely tapering structure provided by the present invention includes a sliding ring, a push-pull ring and a support plate connected in sequence. The sliding ring is located on the top end side of the main shaft and the support plate is located on the end side of the main shaft.

[0008] To address the aforementioned technical problems, this invention also provides a corner template umbrella support for a core tube obliquely tapering structure. The corner template umbrella support includes a recessed corner template umbrella support, which comprises: a main shaft, a wingspan support, a push-pull device, a side support rod, a lateral movement rod, a hinge rod, and a diagonal tie rod. The wingspan support consists of two strip plates, with the first end of each wingspan support hinged to the top of the main shaft via a hinge rod. The connection node between the hinge rod and the main shaft is a ball joint structure. The hinge rod and the wingspan support... The connection nodes are ball joints or shaft hinges; each of the wingspan supports has a groove on one side, and each groove contains a fixed hinge support and a sliding hinge support. The fixed hinge support is fixedly installed in the groove, and the sliding hinge support is slidably installed in the groove; each of the wingspan supports has a force transmission pin hole at its second end; the push-pull device is sleeved and slidably installed on the main shaft; there are two side support rods, and the two ends of each side support rod are respectively hinged to the push-pull device and a wingpan support. The wingspan supports are mounted on a fixed hinge support, and the connection between the side support rods and the fixed hinge support is a ball joint structure. Two side support rods are symmetrically distributed on the main shaft and the push-pull mechanism. When the push-pull mechanism is pushed forward along the main shaft to its top, the push-pull mechanism, through the opening angle of the two side support rods relative to the main shaft, causes the connected wingspan supports to open relative to the main shaft. When the two wingspan supports are open, they are symmetrically distributed on both sides of the main shaft body. When the push-pull mechanism is pulled back along the main shaft to its end... The push-pull device drives the connected wingspan supports to retract relative to the main shaft through the closed angle of the two side support rods relative to the main shaft; the wingspan supports rotate around their own length centerline through the hinge rod connected to the main shaft and the fixed hinge support connected to the side support rods; the lateral moving rod is set at the end of the main shaft; the diagonal tie rod is connected between the push-pull device and the lateral moving rod, and the connection node between the diagonal tie rod and the push-pull device is a hinge structure, and the connection node between the diagonal tie rod and the lateral moving rod is a detachable connection.

[0009] Furthermore, in the corner template umbrella support of the core tube obliquely tapering structure provided by the present invention, the push-pull device is a circular ring.

[0010] Furthermore, the corner template umbrella support of the core tube obliquely tapering structure provided by the present invention further includes an external corner template umbrella support, which comprises: a main shaft, a wingspan support, a push-pull device, a side support rod, a lateral movement rod, a hinge rod, and a diagonal tie rod; the wingspan support consists of two strip plates, the first end of each wingspan support being hinged to the top of the main shaft via a hinge rod, and the connection node between the hinge rod and the main shaft is a ball joint structure, and the connection node between the hinge rod and the wingspan support is a ball joint structure. The structure is a hinge or shaft hinge; each of the wingspan supports has a groove on one side, and each groove contains a fixed hinge support and a sliding hinge support. The fixed hinge support is fixedly installed in the groove, and the sliding hinge support is slidably installed in the groove; each of the wingspan supports has a force transmission pin hole at its second end; the push-pull device is sleeved and slidably installed on the main shaft; there are two side support rods, and the two ends of each side support rod are respectively hinged to the push-pull device and the fixed hinge of one of the wingspan supports. On the support, the connection node between the side support rod and the fixed hinge support is a ball joint structure. The two side support rods are symmetrically distributed on the main shaft and the push-pull device. When the push-pull device is pushed towards the top of the main shaft, the push-pull device drives the respective connected wingspan supports to open relative to the main shaft through the opening angle of the two side support rods relative to the main shaft. When the two wingspan supports are open, they are symmetrically distributed on the extension line of the side where the top of the main shaft is located. When the push-pull device is pulled back towards the end of the main shaft, the push-pull device drives the respective connected wingspan supports to close relative to the main shaft through the closing angle of the two side support rods relative to the main shaft. The wingspan support rotates around its own length centerline through the hinge rod connected to the main shaft and the fixed hinge support connected to the side support rod. The lateral moving rod is set at the end of the main shaft. The diagonal tie rod is connected between the push-pull device and the lateral moving rod, and the connection node between the diagonal tie rod and the push-pull device is a hinge structure. The connection node between the diagonal tie rod and the lateral moving rod is a detachable connection.

[0011] To address the aforementioned technical problems, this invention also provides a method for using a corner template umbrella support in a core tube obliquely tapering structure, comprising:

[0012] Using the aforementioned corner template umbrella support, the transverse moving rod of the corner template umbrella support is fixedly set on the inner cylinder frame of the integral climbing steel platform formwork of the core tube inclined tapering structure. The two wingspan supports are opened by the push-pull device to match the angle of the corner template of the core tube inclined tapering structure. The angle of the wingspan support is rotated with the length center line of the wingspan support as the axis. The wingspan support after the rotation angle contacts the corner template and is embedded in the gap of the transverse back rib of the single-sided template system spliced ​​with the corner template. The force transmission pin is inserted into the transverse back rib and passes through the force transmission pin hole of the wingspan support to fix the wingspan support to the transverse back rib of the single-sided template system on the side where the corner template is located through the force transmission pin. The corner template is fixed by the corner template umbrella support before the core tube inclined tapering structure is poured.

[0013] Using the aforementioned corner formwork umbrella support, the lateral moving rod of the corner formwork umbrella support is fixedly installed on the external scaffolding of the integral climbing steel platform formwork frame of the core tube inclined tapering structure. The two wingspan supports are opened by push-pull devices to match the angle of the corner formwork of the core tube inclined tapering structure. The angle of the wingspan support is rotated about the length centerline as the axis, so that the rotated wingspan support contacts the corner formwork and is embedded in the gap of the transverse back rib of the single-sided formwork system spliced ​​with the corner formwork. The force transmission pin is inserted into the transverse back rib and passes through the force transmission pin hole of the wingspan support, so that the wingspan support is fixed to the transverse back rib of the single-sided formwork system on the side where the corner formwork is located by force transmission pin, so that the corner formwork is fixed by the corner formwork umbrella support before the core tube inclined tapering structure is poured.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The present invention provides a corner template umbrella support for a core tube with an oblique tapering structure and its usage method. The internal corner template umbrella support is used to fix the internal corner template of the core tube with an oblique tapering structure, and the external corner template umbrella support is used to fix the external corner template of the core tube with an oblique tapering structure. In this way, the corner template umbrella support solves the problem of installing and fixing the corner template of the core tube with an oblique tapering structure, overcoming the problem that the corner template cannot be fixed and installed by traditional methods.

[0016] This invention provides corner formwork supports for a core tube inclined tapering structure and their usage method. The internal corner formwork supports are installed in the gap between the overall climbing steel platform formwork of the core tube inclined tapering structure and the transverse back ribs of the internal corner formwork, thus supporting and fixing the internal corner formwork. Similarly, the external corner formwork supports are installed in the gap between the overall climbing steel platform formwork of the core tube inclined tapering structure and the transverse back ribs of the external corner formwork. When pouring concrete for the core tube inclined tapering structure, the lateral pressure generated by the concrete is resisted by the internal and external corner formwork supports, ensuring that the internal and external corner formwork does not tilt or expand outwards during concrete pouring, thereby improving the quality and safety of the corner pouring of the inclined wall of the core tube inclined tapering structure. Specifically, the internal and external corner formwork supports are used to fix the corresponding corner formwork during the installation stage of the corner formwork; during the pouring stage of the core tube inclined tapering structure, the internal and external corner formwork supports are used to resist the lateral pressure generated by the poured concrete, ensuring the safety and reliability of the construction of the core tube inclined tapering structure.

[0017] The invention provides a corner formwork umbrella support for a core tube inclined tapering structure and its usage method. After the construction of the core tube inclined tapering structure is completed, the force transmission pin is removed. The umbrella support maintains contact with the internal corner formwork. Under the gravity generated by the inward tilt of the external corner formwork, the internal corner formwork is demolded by retracting the umbrella support. This prevents the internal corner formwork from forming a pendulum during demolding and rapidly impacting the overall climbing steel platform formwork and the construction workers on it, thus avoiding safety accidents. It also avoids the safety risks of the internal corner formwork easily tilting and falling under unrestrained conditions, thereby ensuring the safety of the internal corner formwork demolding. Attached Figure Description

[0018] Figures 1 to 3 This is a schematic diagram of the three-dimensional structure of the corner template umbrella support from different perspectives;

[0019] Figure 4 This is a structural schematic diagram of the wingspan support and its connection nodes with the side support rods and rigid tie beams;

[0020] Figure 5 This is a schematic diagram of the hinge rod between the wingspan support and the main shaft;

[0021] Figure 6 This is a diagram showing the usage of the internal corner template umbrella support on a corner template of the core tube's sloping tapering structure;

[0022] Figure 7 yes Figure 6 A magnified view of a portion of the image;

[0023] Figure 8 This is a diagram showing the usage of the internal corner template umbrella support on another corner template of the core tube's sloping tapering structure;

[0024] Figure 9 yes Figure 8 A magnified view of a portion of the image;

[0025] Figure 10 yes Figure 9 A structural diagram showing the separation of the internal corner template, single-sided template system, and the inclined wall of the core tube's inclined tapering structure;

[0026] Figure 11 This is a three-dimensional structural diagram illustrating the process of demolding the internal corner template using an umbrella-shaped support.

[0027] Figure 12 This is a structural diagram of the connection node between the internal corner formwork umbrella support and the overall climbing steel platform formwork frame;

[0028] Figure 13 yes Figure 12 A magnified view of a portion of the image;

[0029] Figure 14 This is a three-dimensional structural diagram of the corner formwork umbrella support;

[0030] Figure 15 This is a diagram showing the usage status of the internal corner formwork umbrella support and the internal corner formwork umbrella support on the corner formwork of the core tube's inclined tapering structure;

[0031] Figure 16 yes Figure 15 A magnified view of a portion of the image;

[0032] Figure 17 This is a schematic diagram of the external corner template in a separated state;

[0033] Figure 18 This is a three-dimensional structural diagram of the umbrella support for the internal corner template in another embodiment;

[0034] As shown in the figure:

[0035] 100. Corner formwork umbrella support;

[0036] 110. Main shaft; 111. Top end; 112. End end;

[0037] 120. Wingspan support; 121. Slide groove; 122. Fixed hinge support; 123. Sliding hinge support; 124. Force transmission pin hole.

[0038] 130. Push-pull device; 131. First slip ring; 132. Second slip ring; 133. Push-pull ring; 134. Support plate;

[0039] 140. Side support rod;

[0040] 150. Rigid tie beam;

[0041] 160. Transverse lever;

[0042] 170. Hinge rod;

[0043] 180. Tightening mechanism;

[0044] 190. Diagonal tie rod;

[0045] 200. Sloping tapering structure of the core tube; 210. Exterior wall; 220. Interior wall; 230. Straight wall structure of the core tube.

[0046] 300. Integral climbing steel platform formwork;

[0047] 400. External corner formwork umbrella support;

[0048] 500. Internal corner template;

[0049] 600. External corner template;

[0050] 700, Single-sided template system; 710, Back rib. Implementation

[0051] 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. Example 1

[0052] Please refer to Figures 1 to 5 Embodiment 1 of the present invention provides a corner template umbrella support for a core tube obliquely tapering structure. The corner template umbrella support includes an inside corner template umbrella support 100, which includes: a main shaft 110, a wingspan support 120, a pusher 130, a side support rod 140, a rigid tie beam 150, a lateral movement rod 160, a hinge rod 170, and a tightening mechanism 180.

[0053] Please refer to Figures 1 to 5 The wingspan support 120 consists of two strip plates. The first end of each wingspan support 120 is hinged to the top of the main shaft 110 via a hinge rod 170. The connection between the hinge rod 170 and the main shaft 110 is a ball joint structure. The connection between the hinge rod 170 and the first end of the wingspan support 120 is either a ball joint structure or a shaft hinge. One side of each wingspan support 120 is provided with a groove 121. Each groove 121 contains a fixed hinge support 122 and a sliding hinge support 123. The fixed hinge support 122 is fixedly disposed within the groove 121, and the sliding hinge support 123 is slidably disposed within the groove 121. The second end of each wingspan support 120 is provided with a force transmission pin hole 124. (Please refer to...) Figure 5The hinge rod 170, located between the wingspan support 120 and the main shaft 110, has a ball joint structure at one end and a shaft hinge structure at the other end.

[0054] Please refer to Figures 1 to 2 The push-pull device 130 is sleeved and slidably mounted on the main shaft 110.

[0055] Please refer to Figures 1 to 3 There are two side support rods 140. The two ends of each side support rod 140 are respectively hinged to the push-pull device 130 and the fixed hinge support 122 of the wingspan support 120. The connection node between the side support rod 140 and the fixed hinge support 122 is a ball joint structure. The two side support rods 140 are symmetrically distributed on the main shaft 110 and the push-pull device 130.

[0056] Please refer to Figures 1 to 3 The rigid tie beam 150 is vertically intersectingly mounted on the main shaft 110. Each end of the rigid tie beam 150 is hinged to a sliding hinge support 123 of one of the two wingspan supports 120 via a hinge rod 170. The connection between the hinge rod 170 and the rigid tie beam 150 is a detachable ball joint structure, and the connection between the hinge rod 170 and the sliding hinge support 123 is also a ball joint structure. At this time, both ends of the hinge rod 170 located between the wingspan support 120 and the rigid tie beam 150 are ball joint structures. The position of the rigid tie beam 150 can be adjusted by sliding its two ends within the groove 121 of the wingspan support 120 via the hinge rod 170 and its connected sliding hinge support 123, thus forming a stable triangular support system between the two wingspan supports 120 and the rigid tie beam 150. The rigid tie beam 150 can be a fixed beam or a telescopic beam.

[0057] Please refer to Figures 1 to 3 The clamping mechanism 180 is mounted on the rigid tie beam 150 and aligned with the pusher 130 near the end of the main shaft 110. When the clamping mechanism 180 extends, it clamps against the pusher 130; when the clamping mechanism 180 retracts, it separates from the pusher 130. The clamping mechanism 180 can be an electric lifting mechanism or a hydraulic cylinder.

[0058] Please refer to Figures 1 to 3 The transverse rod 160 is disposed at the end of the main shaft 110.

[0059] Please refer to Figures 1 to 2When the push-pull device 130 is pushed forward along the main shaft 110 toward its top 111, the push-pull device 130 drives the respective connected wingspan supports 120 to open relative to the main shaft 110 through the opening angle of the two side support rods 140 relative to the main shaft 110. When the two wingspan supports 120 are open, they are symmetrically distributed on both sides of the main shaft 110. When the push-pull device 130 is pulled back along the main shaft 110 toward its end, the push-pull device 130 drives the respective connected wingspan supports 120 to close relative to the main shaft 110 through the closing angle of the two side support rods 140 relative to the main shaft 110.

[0060] Please refer to Figures 1 to 5 The wingspan support 120 rotates around its own length centerline via a hinged rod 170 connected to the main shaft 110, a hinged rod 170 connected to the rigid tie beam 150, and a fixed hinge support 122 connected to the side support rod 140.

[0061] Please refer to Figures 1 to 2 To enable the opening or closing of the wingspan support 120, the corner template umbrella support of the core tube obliquely tapering structure provided in Embodiment 1 of the present invention includes a push-pull device 130 comprising a first sliding ring 131, a second sliding ring 132, a push-pull ring 133, and a support plate 134 connected in sequence. The first sliding ring 131 and the second sliding ring 132 are located on the side of the top end 111 of the main shaft 110, and the support plate 134 is located on the side of the end end 112 of the main shaft 110. The cross-sectional area of ​​the support plate 134 is larger than that of the push-pull ring 133 to accommodate the clamping mechanism 180. Alternatively, to achieve the sliding of the push-pull device 130 relative to the main shaft 110, the push-pull device 130 may omit the first sliding ring 131 and the second sliding ring 132, and instead hinge the side support rod 140 to the push-pull ring 133. The first sliding ring 131 and the second sliding ring 132 may also be combined into one. The push-pull ring 133 may be a circular ring. Example 2

[0062] Please refer to Figures 14 to 17 The corner template umbrella support of the core tube obliquely tapering structure provided in Embodiment 2 of the present invention may further include a convex corner template umbrella support 400, which includes: a main shaft 110, a wingspan support 120, a pusher 130, a side support rod 140, a lateral movement rod 160, a hinge rod 170, and a diagonal tie rod 190.

[0063] Please refer to Figure 14The similarity between the external corner template umbrella support 400 in Embodiment 2 and the internal corner template umbrella support 100 in Embodiment 1 is that the main shaft 110, the wingspan support 120, the pusher 130, the side support rod 140, the lateral movement rod 160, and the hinge rod 170 are the same. The difference lies in the positional relationship of the wingspan supports 120 when they are open. That is, when the pusher 130 is pushed along the main shaft 110 towards its top, the pusher 130 drives the wingspan supports 120 connected to it to open relative to the main shaft 110 through the opening angle of the two side support rods 140 relative to the main shaft 110. When the two wingspan supports 120 are open, they are symmetrically distributed on the extension line of the side where the top of the main shaft 110 is located. The wingspan supports 120 rotate around their own length centerline through the hinge rod 170 connected to the main shaft 110 and the fixed hinge support 122 connected to the side support rod 140. It also includes a diagonal tie rod 190, which is connected between the pusher 130 and the lateral rod 160. The connection node between the diagonal tie rod 190 and the pusher 130 is a hinge structure, and the connection node between the diagonal tie rod 190 and the lateral rod 160 is a detachable connection. The push-pull device 130 consists only of the push-pull ring 133 and does not include other structures. The push-pull ring 133 can be a circular ring. Example 3

[0064] Please refer to Figure 18 This invention provides a corner template umbrella support for a core tube with a tapering structure. The internal corner template umbrella support 100 is not limited to the structure of Embodiment 1, but can be improved based on the external corner template umbrella support 400 of Embodiment 2. The difference lies in the positional relationship of the wingspan supports 120 when they are opened. That is, when the pusher 130 is pushed along the main shaft 110 to its top, the pusher 130 drives the wingspan supports 120 connected to it to open relative to the main shaft 110 through the opening angle of the two side support rods 140 relative to the main shaft 110. When the two wingspan supports 120 are opened, they are symmetrically distributed on both sides of the main shaft 110. Example 4

[0065] Embodiment 4 of the present invention also provides a method for using the corner template umbrella support of the core tube obliquely tapering structure, which may include:

[0066] Step 801: Using the corner template umbrella support 100 of Embodiment 1 or Embodiment 3 above, fix the transverse rod 160 of the corner template umbrella support 100 on the inner cylinder frame of the integral climbing steel platform formwork of the core tube oblique tapering structure. Open the two wingspan supports 120 through the push-pull device 130 to match the angle of the corner template of the core tube oblique tapering structure. Rotate the wingspan support 120 around the length centerline as the axis, and rotate the wingspan support 120. The span support 120 contacts the corner template and is embedded in the gap of the transverse back rib 710 of the single-sided template system 700 spliced ​​with the corner template. A force transmission pin is inserted into the transverse back rib 710 and passes through the force transmission pin hole 124 of the span support 120 to fix the span support 120 to the transverse back rib 710 of the single-sided template system 700 on the side where the corner template is located. This is to fix the corner template using the corner template umbrella support 100 before the core tube's oblique tapering structure is poured. The transverse back rib 710 can be composed of two channel steels spliced ​​back-to-back.

[0067] Step 802: Using the aforementioned corner template umbrella support 400, the transverse rod 160 of the corner template umbrella support 400 is fixedly installed on the external scaffolding of the overall climbing steel platform formwork of the core tube inclined tapering structure. The two wingspan supports 120 are opened by the push-pull device 130 to match the angle of the corner template at the corner of the core tube inclined tapering structure. The angle of the wingspan support 120 is rotated about the length centerline of the wingspan support 120, so that the rotated wingspan support 120 contacts the corner template and is embedded in the gap of the transverse back rib 710 of the single-sided template system spliced ​​with the corner template. The force transmission pin is inserted into the transverse back rib 710 and passes through the force transmission pin hole 124 of the wingspan support 120 to fix the wingspan support 120 to the transverse back rib 710 of the single-sided template system on the side where the corner template is located, so that the corner template is fixed by the corner template umbrella support 400 before the core tube inclined tapering structure is poured.

[0068] By using fixed internal and external corner templates, the corners of the inclined walls of the core tube's sloping tapering structure can be poured, which can improve the pouring quality and safety of the corners of the inclined walls.

[0069] In the above embodiment one, the internal corner template umbrella support 100:

[0070] The functions of the wingspan support 120 are: firstly, during the installation stage of the internal corner formwork, the wingspan support 120 serves as a force-transmitting component that directly bears the load of the internal corner formwork; secondly, during the concrete pouring stage, the wingspan support 120 is used to resist the lateral pressure generated by the concrete pouring.

[0071] The function of the main shaft 110 is to serve as the core of the mechanical movement of the entire mechanism. 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 side support rod 140 to the rigid tie beam 150 to maintain the stability of the system.

[0072] The function of the transverse rod 160 is to allow the main shaft rod 110 to move horizontally, which is convenient for manual adjustment, so that the two wingspan supports 120 are simultaneously in close contact with the inside corner template, that is, the main shaft rod 110 is always located on the angle bisector of the two wingspan supports 120.

[0073] The function of the side support rod 140 is as follows: during the installation stage of the internal corner formwork, it is the power traction mechanism of the wingspan support 120, which drives the wingspan support to open and close; during the concrete pouring stage, it is the support of the wingspan support 120. In fact, the wingspan support is a simply supported beam with only two supports: a ball joint and a fixed support point.

[0074] The thruster 130 serves as the central support point and is the concentrated area for both the movement and fixation of the entire mechanism. Its bearing plate can transmit force to the clamping mechanism 180.

[0075] The rigid tie beam 150 is detachable and can be disassembled as a whole to facilitate the retraction of the span support 120 relative to the main shaft 110. The rigid tie beam 150 is subjected to nodal loads in its middle, which is a typical bending stress state. However, because the constraints on both sides are sliding hinge supports instead of fixed hinge supports, the concentrated load in the middle is simultaneously subjected to axial tension under bending action, hence the name tie beam.

[0076] The force transmission relationship of the umbrella support 100 of the inside corner template is as follows: wingspan support 120 - side support rod 140 - push-pull device 130 - tightening mechanism 180 - rigid tie beam 150.

[0077] The rigid tie beam 150 forms a triangular stable support system with the wingspan support 120 via the hinged rod 170. If the rigid tie beam 150 tends to move downwards, it will move along the groove of the wingspan support 120. This movement requires the rigid tie beam 150 to lengthen, but the rigid tie beam 150 is difficult to lengthen, thus failing to form a stable load-bearing system. During concrete pouring, the clamping mechanism 180 keeps the rigid tie beam 150 stable to ensure that the opening angle of the wingspan support 120 remains unchanged.

[0078] In embodiments two and three above, the external corner template umbrella support 400 of the internal corner template umbrella support 100 is a triangular stable support system composed of a diagonal tie rod 190, a main shaft rod 110, and a lateral moving rod 160 to ensure that the opening angle of the wingspan support 120 remains unchanged. That is, the diagonal tie rod 190 presses against the push-pull device 130, so that the side support rod 140 is kept tightly pressed against the wingspan support 120 to keep the opening angle unchanged. The lateral moving rod 160 and the diagonal tie rod 190 can be fastened together or other detachable fixed connections.

[0079] The corner template umbrella supports and their usage methods for the core tube oblique tapering structure provided in embodiments one to four of the present invention fix the internal corner template of the core tube oblique tapering structure by means of the internal corner template umbrella support 100 and fix the external corner template of the core tube oblique tapering structure by means of the external corner template umbrella support 400. Thus, the corner template umbrella supports solve the problem of fixing the corner template of the core tube oblique tapering structure, overcoming the problem that the corner template cannot be fixed and installed by traditional methods.

[0080] The corner formwork supports and their usage methods for the core tube inclined tapering structure provided in embodiments one to four of the present invention are as follows: The internal corner formwork supports are installed in the gap between the overall climbing steel platform formwork of the core tube inclined tapering structure to be constructed and the transverse back ribs 710 of the internal corner formwork of the core tube inclined tapering structure, thereby supporting and fixing the internal corner formwork. The external corner formwork supports 400 are installed in the gap between the overall climbing steel platform formwork of the core tube inclined tapering structure and the transverse back ribs 710 of the external corner formwork of the core tube inclined tapering structure. When pouring concrete for the core tube inclined tapering structure, the lateral pressure generated by the concrete is resisted by the internal and external corner formwork supports 400, ensuring that the internal and external corner formworks do not tilt or expand outwards during concrete pouring, thus improving the pouring quality and safety of the corners of the inclined walls of the core tube inclined tapering structure. Specifically, the internal corner formwork umbrella supports and external corner formwork umbrella supports 400 are used to fix the corresponding corner formwork during the installation stage of the corresponding corner formwork; during the pouring stage of the core tube inclined tapering structure, the internal corner formwork and external corner formwork are used to resist the lateral pressure generated by the pouring concrete, ensuring the safety and reliability of the construction of the core tube inclined tapering structure.

[0081] The corner formwork umbrella support and its usage method provided in embodiments one to four of the present invention for the core tube inclined tapering structure, after the construction of the core tube inclined tapering structure is completed, the force transmission pin is removed, and the corner formwork umbrella support is kept in contact with the corner formwork. Under the action of gravity generated by the inward tilt of the external corner formwork, the corner formwork is demolded by retracting the corner formwork umbrella support. This prevents the corner formwork from forming a single pendulum during the demolding process and rapidly impacting the overall climbing steel platform formwork and the construction workers on it, causing a safety accident. It avoids the safety risk of the corner formwork easily tilting and falling under unrestrained conditions, thereby ensuring the safety of the corner formwork demolding.

[0082] 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 corner template umbrella support for a core tube with an obliquely tapering structure, characterized in that, The corner template umbrella support includes an inside corner template umbrella support, which includes: a main shaft, a wingspan support, a push-pull device, a side support rod, a rigid tie beam, a transverse rod, a hinge rod, and a clamping mechanism; The wingspan support consists of two strip plates. The first end of each wingspan support is hinged to the top of the main shaft via a hinge rod. The connection node between the hinge rod and the main shaft is a ball joint structure. The connection node between the hinge rod and the first end of the wingspan support is either a ball joint structure or a shaft hinge. One side of each wingspan support is provided with a groove. Each groove contains a fixed hinge support and a sliding hinge support. The fixed hinge support is fixedly disposed in the groove, and the sliding hinge support is slidably disposed in the groove. A force transmission pin hole is provided on the second end of each wingspan support. The push-pull device is sleeved and slidably mounted on the main shaft; There are two side support rods. The two ends of each side support rod are respectively hinged to the push-pull device and a fixed hinge support of the wingspan support. The connection node between the side support rod and the fixed hinge support is a ball joint structure. The two side support rods are symmetrically distributed on the main shaft and the push-pull device. The rigid tie beams are vertically intersectingly arranged on the main shaft. Each end of the rigid tie beam is hinged to the sliding hinge support of the two wingspan supports by a hinge rod. The connection node between the hinge rod and the rigid tie beam is a detachable ball joint structure. The connection node between the hinge rod and the sliding hinge support is a ball joint structure. The clamping mechanism is mounted on the rigid tie beam and aligned with the push-pull device on the side near the end of the main shaft. When the clamping mechanism extends, it clamps against the push-pull device, and when the clamping mechanism retracts, it separates from the push-pull device. The lateral moving rod is located at the end of the main shaft; When the pusher is pushed along the main shaft to its top, the pusher drives the connecting wingspan supports to open relative to the main shaft through the opening angle of the two side support rods relative to the main shaft. When the two wingspan supports are opened, they are symmetrically distributed on both sides of the main shaft. When the push-pull device is pulled back along the main shaft to its end, the push-pull device drives the respective connected wingspan supports to retract relative to the main shaft through the closing angle of the two side support rods relative to the main shaft. The wingspan support rotates around its own length centerline via a hinged rod connected to the main shaft, a hinged rod connected to the rigid tie beam, and a fixed hinged support connected to the side support rod.

2. The corner template umbrella support of the core tube obliquely tapering structure according to claim 1, characterized in that, The clamping mechanism is an electric lifting plate machine or a hydraulic cylinder.

3. The corner template umbrella support of the core tube obliquely tapering structure according to claim 1, characterized in that, The rigid tie beam is either a fixed beam or a telescopic beam.

4. The corner template umbrella support of the core tube obliquely tapering structure according to claim 1, characterized in that, The push-pull device includes a sliding ring, a push-pull ring, and a support plate connected in sequence. The sliding ring is located on the top side of the main shaft, and the support plate is located on the end side of the main shaft.

5. A corner template umbrella support for a core tube with an obliquely tapering structure, characterized in that, The corner template umbrella support includes an inside corner template umbrella support, which includes: a main shaft, a wingspan support, a push-pull device, a side support rod, a lateral movement rod, a hinge rod, and a diagonal tie rod; The wingspan support consists of two strip plates. The first end of each wingspan support is hinged to the top of the main shaft via a hinge rod. The connection between the hinge rod and the main shaft is a ball joint structure, and the connection between the hinge rod and the wingspan support is either a ball joint structure or a shaft hinge. One side of each wingspan support is provided with a groove, and each groove is provided with a fixed hinge support and a sliding hinge support. The fixed hinge support is fixedly disposed in the groove, and the sliding hinge support is slidably disposed in the groove. The second end of each wingspan support is provided with a force transmission pin hole. The push-pull device is sleeved and slidably mounted on the main shaft; There are two side support rods. The two ends of each side support rod are respectively hinged to the push-pull device and a fixed hinge support of the wingspan support. The connection node between the side support rod and the fixed hinge support is a ball joint structure. The two side support rods are symmetrically distributed on the main shaft and the push-pull device. When the pusher is pushed along the main shaft to its top, the pusher causes the connecting wingspan supports to open relative to the main shaft through the opening angle of the two side support rods relative to the main shaft; when the two wingspan supports are opened, they are symmetrically distributed on both sides of the main shaft body; When the push-pull device is pulled back along the main shaft to its end, the push-pull device drives the respective connected wingspan supports to retract relative to the main shaft through the closing angle of the two side support rods relative to the main shaft. The wingspan support rotates around its own length centerline via a hinged rod connected to the main shaft and a fixed hinged support connected to the side support rod. The lateral moving rod is located at the end of the main shaft; The diagonal tie rod is connected between the push-pull device and the lateral moving rod, and the connection node between the diagonal tie rod and the push-pull device is a hinged structure, while the connection node between the diagonal tie rod and the lateral moving rod is a detachable connection.

6. The corner template umbrella support of the core tube obliquely tapering structure according to claim 5, characterized in that, The push-pull mechanism is a circular ring.

7. The corner template umbrella support of the core tube obliquely tapering structure according to claim 1 or 5, characterized in that, The corner template umbrella support also includes the external corner template umbrella support, which includes: a main shaft, a wingspan support, a push-pull device, a side support rod, a lateral movement rod, a hinge rod, and a diagonal tie rod; The wingspan support consists of two strip plates. The first end of each wingspan support is hinged to the top of the main shaft via a hinge rod. The connection between the hinge rod and the main shaft is a ball joint structure, and the connection between the hinge rod and the wingspan support is either a ball joint structure or a shaft hinge. One side of each wingspan support is provided with a groove, and each groove is provided with a fixed hinge support and a sliding hinge support. The fixed hinge support is fixedly disposed in the groove, and the sliding hinge support is slidably disposed in the groove. The second end of each wingspan support is provided with a force transmission pin hole. The push-pull device is sleeved and slidably mounted on the main shaft; There are two side support rods. The two ends of each side support rod are respectively hinged to the push-pull device and a fixed hinge support of the wingspan support. The connection node between the side support rod and the fixed hinge support is a ball joint structure. The two side support rods are symmetrically distributed on the main shaft and the push-pull device. When the pusher is pushed along the main shaft toward its top, the pusher drives the connecting wingspan supports to open relative to the main shaft through the opening angle of the two side support rods relative to the main shaft. When the two wingspan supports are opened, they are symmetrically distributed on the extension line of the side where the top of the main shaft is located. When the push-pull device is pulled back along the main shaft to its end, the push-pull device drives the respective connected wingspan supports to retract relative to the main shaft through the closing angle of the two side support rods relative to the main shaft. The wingspan support rotates around its own length centerline via a hinged rod connected to the main shaft and a fixed hinged support connected to the side support rod. The lateral moving rod is located at the end of the main shaft; The diagonal tie rod is connected between the push-pull device and the lateral moving rod, and the connection node between the diagonal tie rod and the push-pull device is a hinged structure, while the connection node between the diagonal tie rod and the lateral moving rod is a detachable connection.

8. A method for using a corner template umbrella support in a core tube obliquely tapering structure, characterized in that, include: Using the corner template umbrella support as described in claim 1 or 5, the transverse moving rod of the corner template umbrella support is fixedly set on the inner cylinder frame of the integral climbing steel platform formwork of the core tube inclined tapering structure. The two wingspan supports are opened by a push-pull device to match the angle of the corner template of the core tube inclined tapering structure. The angle of the wingspan support is rotated with the length center line of the wingspan support as the axis. The wingspan support after the rotation angle contacts the corner template and is embedded in the gap of the transverse back rib of the single-sided template system spliced ​​with the corner template. The force transmission pin is inserted into the transverse back rib and passes through the force transmission pin hole of the wingspan support to fix the wingspan support to the transverse back rib of the single-sided template system on the side where the corner template is located through the force transmission pin. The corner template is fixed by the corner template umbrella support before the core tube inclined tapering structure is poured. Using the corner formwork umbrella support as described in claim 7, the lateral moving rod of the corner formwork umbrella support is fixedly installed on the external scaffolding of the overall climbing steel platform formwork frame of the core tube inclined tapering structure. The two wingspan supports are opened by push-pull devices to match the angle of the corner formwork of the core tube inclined tapering structure. The angle of the wingspan support is rotated with the length centerline of the wingspan support as the axis. The rotated wingspan support contacts the corner formwork and is embedded in the gap of the transverse back rib of the single-sided formwork system spliced ​​with the corner formwork. The force transmission pin is inserted through the set of transverse back ribs into the force transmission pin hole of the wingspan support, so as to fix the wingspan support to the transverse back rib of the single-sided formwork system on the side where the corner formwork is located by force transmission pin, so as to fix the corner formwork by the corner formwork umbrella support before the core tube inclined tapering structure is poured.

Images