Adjustable top support for hole embracing frame formwork support and formwork support construction method

Abstract

The invention provides an adjustable top support for a hole embracing frame formwork support and a formwork support construction method, and relates to building construction. The hole embracing frame formwork supporting adjustable top support comprises supporting formworks, a first buckling mechanism and a second buckling mechanism, the number of the supporting formworks is the same as that of holes, the shape of the multiple supporting formworks after being connected with one another is matched with the shape of the holes, the connecting positions of the inner sides of the adjacent supporting formworks are defined as connecting joints, and the first buckling mechanism and the second buckling mechanism are connected through the connecting joints. The first buckling mechanism is arranged on one of the connecting nodes, the second buckling mechanisms are arranged on the rest of the connecting nodes, and one second buckling mechanism is arranged on the corresponding connecting node, the length of the supporting formwork can be adjusted, the supporting formwork is suitable for polygonal holes of different sizes, and the supporting formwork is convenient to use. And the stability and the reliability of template support are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a hole opening frame formwork supporting adjustable shore and a formwork supporting construction method. BACKGROUND

[0002] Traditional hole opening frame structures are usually designed in a rectangular shape and are mainly used for installing various structural components. However, with the continuous improvement of architectural aesthetic standards, the hole opening structure forms in modern engineering are increasingly diversified. Under this background, the traditional formwork combined with support columns is often difficult to adapt to various polygonal hole opening structures, resulting in that the support performance cannot meet the engineering requirements, thereby affecting the stability of the subsequent structure. In addition, due to the large variability of the hole opening length, the method of simply splicing and extending the support formwork not only has poor mechanical performance, but also has obvious deficiencies in protection performance. SUMMARY

[0003] The purpose of the present application is to provide a hole opening frame formwork supporting adjustable shore and a formwork supporting construction method, which can adapt to polygonal hole openings of different shapes and improve the stability and reliability of the formwork support.

[0004] In a first aspect, the present application provides a hole opening frame formwork supporting adjustable shore, which comprises a support formwork, a first buckling mechanism and a second buckling mechanism. The number of support formworks is the same as the number of hole openings, and the shape of the plurality of support formworks after being connected with each other is adapted to the shape of the hole openings. The connection between the inner sides of adjacent support formworks is defined as a connection node. The first buckling mechanism is installed at one of the connection nodes, and a plurality of second buckling mechanisms are installed at the remaining connection nodes, with one second buckling mechanism being installed at a corresponding connection node. Each support formwork comprises a formwork body and two extension pieces. The two extension pieces are arranged at both ends of the formwork body, and each extension piece slides along the length direction of the formwork body relative to the formwork body. The first buckling mechanism comprises a first buckling piece and a second buckling piece. The first buckling piece cooperates with the second buckling piece to fix the connection node. Each second buckling mechanism comprises a first connecting piece and a second connecting piece. The first connecting piece and the second connecting piece slide along the length direction of the second buckling mechanism. The first connecting piece is hinged to the extension piece of one support formwork, and the second connecting piece is hinged to the extension piece of an adjacent support formwork.

[0005] Further, each of the support templates further comprises a first sliding member and two second sliding members, the two second sliding members are respectively arranged at two ends of the first sliding member, and each of the second sliding members slides relative to the first sliding member along the length direction of the template body, the first sliding member is fixed to the template body, and one of the second sliding members is fixed to one of the extension members.

[0006] Further, the cross section of the first sliding member is larger than the cross section of the second sliding member, and the second sliding member is inserted into the first sliding member.

[0007] Further, adjacent support templates are hinged, and at one of the connection nodes, the extension member on one of the support templates is provided with a first hook block, the extension member on the adjacent support template is provided with a second hook block, and the first hook block and the second hook block are hinged by a connecting steel column.

[0008] Further, each of the extension members is provided with a fixed block, at one of the connection nodes, the first connecting member is hinged with one of the fixed blocks by a hinge shaft, and the second connecting member is hinged with another fixed block by a hinge shaft.

[0009] Further, the first clamping member is provided with a first open slot, the second clamping member is provided with a second open slot, the openings of the first open slot and the second open slot are oppositely arranged, and together define a receiving slot, the two hinge shafts are located in the receiving slot, and each of the hinge shafts abuts against the slot wall of the receiving slot.

[0010] Further, one of the first clamping members and one of the second clamping members form a first clamping mechanism, the number of the first clamping mechanisms is multiple groups, on each of the extension members, the number of the fixed blocks is consistent with and one-to-one corresponds to the number of the clamping mechanisms, the multiple groups of the first clamping mechanisms are arranged at intervals along the width direction of the template body, the multiple first clamping members are provided with first fixing members, the multiple second clamping members are provided with second fixing members, and the second fixing members are fixedly connected with the first fixing members by fasteners.

[0011] Further, one end of the first connecting member is provided with a first U-shaped slot, one end of the second connecting member is provided with a second U-shaped slot, the opening of the first U-shaped slot is oppositely arranged with the opening of the second U-shaped slot, one of the hinge shafts is located in the first U-shaped slot, and the other hinge shaft is located in the second U-shaped slot.

[0012] Further, each of the second buckling mechanisms further comprises a screw rod, the first connecting piece is provided with a sliding groove which is not communicated with the first U-shaped groove, the second connecting piece is provided with a movable groove which is not communicated with the second U-shaped groove, and the screw rod is arranged in the sliding groove and the movable groove.

[0013] In a second aspect, the application further provides a template support construction method using the hole frame template support adjustable support described above, and the construction method comprises: measuring each side length of the polygonal hole, and pre-adjusting the length of each support template according to the length value of each side length; constructing a first support template on the first side length of the hole, constructing a second support template on the second side length of the hole, connecting the first support template and the second support template, and installing a second buckling mechanism between the first support template and the second support template; adjusting the second buckling mechanism according to the included angle of the first side length and the second side length until the included angle of the first support template and the first support template is equal to the included angle of the first side length and the second side length; continuing to construct the remaining support templates; cutting a first buckling mechanism in the connecting node between the last support template and the first support template, and adjusting the included angle through the first buckling mechanism.

[0014] Compared with the prior art, the application has the following beneficial effects: The application realizes the adjustable function of the length of the support template through the arrangement of the template body and the two extension pieces, is suitable for polygonal holes of different sizes, and the first buckling mechanism and the second buckling mechanism of the application improve the support performance of the connecting node, the incircle installation of the second buckling mechanism is suitable for the closed fixation of the polygonal template support, and the stability and reliability of the template support are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 shows a plan view of the hole frame template support adjustable support in some embodiments; Figure 2 shows a perspective view of the support template in some embodiments; Figure 3Fig. 3 shows a schematic view of the connection between two adjacent support templates in some embodiments; Figure 4 Fig. 4 shows a schematic view of the connection between the first connecting fastener and the support template in some embodiments; Figure 5 Fig. 5 shows Figure 1 Fig. 6 shows an enlarged view of part A in Fig. 5; Figure 6 Fig. 7 shows a schematic view of the connection between the second fastening mechanism and the support template in some embodiments; Figure 7 Fig. 8 shows an exploded schematic view of the second fastening mechanism in some embodiments.

[0017] Main element symbol explanation: 100 - support template; 110 - template body; 120 - extension piece; 121 - first hook block; 122 - second hook block; 123 - connecting steel column; 124 - fixing block; 130 - first sliding piece; 140 - second sliding piece; 150 - fixing fastener; 160 - anti-coming-off piece; 170 - welding pad-up piece; 180 - extension plate; 181 - abutting table; 190 - bevel support plate; 200 - first fastening mechanism; 210 - first fastening piece; 211 - first open slot; 220 - second fastening piece; 221 - second open slot; 230 - first fixing piece; 240 - second fixing piece; 250 - fastening piece; 300 - second fastening mechanism; 310 - first connecting piece; 311 - U-shaped block; 3111 - first U-shaped slot; 312 - connecting strip; 313 - fixing frame; 320 - second connecting piece; 321 - movable slot; 322 - second U-shaped slot; 323 - threaded hole; 330 - screw; a - hinged shaft. DETAILED DESCRIPTION

[0018] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which examples of the embodiments are shown, wherein the same or similar notations are used to denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary only, and are used only for explanation of the present application, and cannot be understood as a limitation of the present application.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0020] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" can include, explicitly or implicitly, one or more of such features. In the description of the present application, the meaning of "a plurality of" is two or more, unless explicitly specified and limited otherwise.

[0021] In the present application, unless explicitly specified and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In the present application, unless explicitly specified and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0023] Embodiment one The present embodiment is suitable for the construction of polygonal hole opening frame template support, for example: pentagon.

[0024] Please refer to Figure 1 The present embodiment provides a hole opening frame template support adjustable support, which comprises a support template 100, a first buckling mechanism 200 and a second buckling mechanism 300.

[0025] The number of support templates 100 is the same as the number of holes, and the shape of the plurality of support templates 100 connected to each other is adapted to the shape of the hole. Since the hole of the present application is polygonal, after the template support construction is completed, all the support templates 100 are connected end to end to form a closed frame structure.

[0026] The connection between the adjacent inner sides of the support template 100 is defined as a connection node, the first buckling mechanism 200 is installed in one of the connection nodes, and a plurality of second buckling mechanisms 300 are installed in the remaining connection nodes, and one second buckling mechanism 300 is installed in the corresponding connection node.

[0027] For the convenience of description and understanding, the drawings of the embodiment only exemplarily illustrate the first connecting node and the last connecting node, the connecting node in the upper left corner is the first connecting node, and the connecting node in the lower left corner is the last connecting node, that is, the first support formwork 100, the second support formwork 100 and the last support formwork 100 are shown.

[0028] Please refer to Figure 2 and Figure 3 Each support formwork 100 comprises a formwork body 110 and two extension pieces 120, the two extension pieces 120 are arranged at two ends of the formwork body 110, each extension piece 120 slides along the length direction of the formwork body 110 relative to the formwork body 110, and each extension piece 120 is provided with a fixing block 124.

[0029] The sliding mode is that each support formwork 100 further comprises a first sliding piece 130 and two second sliding pieces 140, the two second sliding pieces 140 are respectively arranged at two ends of the first sliding piece 130, and each second sliding piece 140 slides along the length direction of the formwork body 110 relative to the first sliding piece 130, the first sliding piece 130 is fixed to the formwork body 110, and one second sliding piece 140 is fixed to one extension piece 120.

[0030] The cross section of the first sliding piece 130 is larger than the cross section of the second sliding piece 140, and the second sliding piece 140 is inserted into the first sliding piece 130.

[0031] The embodiment can be set that the first sliding piece 130 and the second sliding piece 140 are both square tubes, specifically, the first sliding piece 130 is configured as a torsion-resistant square steel, and the number of the first sliding piece 130 is determined according to the actual use support strength, for example, the wider the width of the formwork body 110 is, the more the number of the first sliding piece 130 is arranged, and the plurality of first sliding pieces 130 are arranged in the width direction of the formwork body 110.

[0032] The embodiment is set that the formwork body 110 is a rectangular structure with a certain width and length, and the extension piece 120 is arranged in the length direction to adjust the length of the support formwork 100, so as to adapt to different hole openings.

[0033] The support formwork 100 is vertically constructed on the hole opening, at this time, the width of the support formwork 100 is converted into the height.

[0034] To improve the connection strength of the embodiment, the support template 100 further comprises a fixing buckle 150 and an anti-disengagement piece 160, one first sliding member 130 and two second sliding members 140 are a group of sliding mechanisms, the fixing buckle 150 is arranged on one of the second sliding members 140, and the anti-disengagement piece 160 is arranged on the other second sliding member 140.

[0035] The embodiment improves the connection strength through the fixing buckle 150, and prevents the second sliding member 140 from disengaging from the first sliding member 130 through the anti-disengagement piece 160.

[0036] The adjacent support templates 100 are hinged, and at one connection node, the extension member 120 on one support template 100 is provided with a first hook block 121, the extension member 120 on the adjacent support template 100 is provided with a second hook block 122, and the first hook block 121 and the second hook block 122 are hinged through a connecting steel column 123.

[0037] The embodiment can be configured such that the first hook block 121 and the second hook block 122 are both J-shaped hook blocks, the opening direction of the J-shaped hook blocks is parallel to the length direction of the support template 100, and after the adjacent two support templates 100 are assembled, the opening directions of the first hook block 121 and the second hook block 122 are arranged perpendicular to each other, thereby limiting the horizontal movement of the connecting steel column 123 and achieving the effect of hinging.

[0038] Please refer to Figure 1 , Figure 4 and Figure 5 , the first buckling mechanism 200 comprises a first buckling member 210 and a second buckling member 220, and the first buckling member 210 cooperates with the second buckling member 220 to fix the connection node.

[0039] The first buckling member 210 is provided with a first open slot 211, the second buckling member 220 is provided with a second open slot 221, the openings of the first open slot 211 and the second open slot 221 are arranged opposite to each other, and together define a containing slot, the two hinge shafts a are located in the containing slot, and each hinge shaft a abuts the slot wall of the containing slot.

[0040] The first open slot 211 and the second open slot 221 are both trapezoidal slots, and the opening positions of the first open slot 211 and the second open slot 221 are the long side positions of the trapezoidal slots, and the slot bottoms of the first open slot 211 and the second open slot 221 are the short side positions of the trapezoidal slots.

[0041] The embodiment can be configured such that the size of the first open slot 211 is greater than the size of the second open slot 221, so that after assembly, the first open slot 211 and the second open slot 221 can achieve the limiting effect.

[0042] A first fastening piece 210 and a second fastening piece 220 form a first fastening mechanism 200, the number of first fastening mechanisms 200 is multiple groups, the number of fixed blocks 124 on each extension piece 120 is consistent with and one-to-one corresponding to the number of first fastening mechanisms 200, and the multiple groups of first fastening mechanisms 200 are arranged at intervals along the width direction of the template body 110; the plurality of first fastening pieces 210 are provided with first fixing pieces 230, and the plurality of second fastening pieces 220 are provided with second fixing pieces 240, and the second fixing pieces 240 are fixedly connected with the first fixing pieces 230 through fasteners 250.

[0043] In the embodiment, the first fixing piece 230 and the second fixing piece 240 are two parallel plates.

[0044] In the embodiment, the first fastening piece 210, the second fastening piece 220, the first fixing piece 230, the second fixing piece 240 and the fastener 250 form a stable overall structure, which prevents the structure from being separated and provides good support force for subsequent pouring.

[0045] Please refer to Figure 1 、 Figure 6 and Figure 7 Each second fastening mechanism 300 includes a first connecting piece 310 and a second connecting piece 320, the first connecting piece 310 and the second connecting piece 320 slide along the length direction of the second fastening mechanism 300, the first connecting piece 310 is hinged with an extension piece 120 of a support template 100, and the second connecting piece 320 is hinged with an extension piece 120 of an adjacent support template 100.

[0046] On a connecting node, the first connecting piece 310 is hinged with a fixed block 124 through a hinge shaft a, and the second connecting piece 320 is hinged with another fixed block 124 through a hinge shaft a.

[0047] One end of the first connecting piece 310 is provided with a first U-shaped groove 3111, and one end of the second connecting piece 320 is provided with a second U-shaped groove 322, the opening of the first U-shaped groove 3111 is arranged opposite to the opening of the second U-shaped groove 322, one hinge shaft a is located in the first U-shaped groove 3111, and the other hinge shaft a is located in the second U-shaped groove 322.

[0048] Each second fastening mechanism 300 further includes a screw rod 330, the first connecting piece 310 is provided with a sliding groove which is not communicated with the first U-shaped groove 3111, the second connecting piece 320 is provided with a movable groove 321 which is not communicated with the second U-shaped groove 322, and the screw rod 330 is arranged in the sliding groove and the movable groove 321.

[0049] In preparation, the first connecting piece 310 is composed of a U-shaped block 311, connecting strips 312 and a fixed frame 313. The U-shaped block 311 is provided with a first U-shaped groove 3111. The two connecting strips 312 are arranged in parallel. One end of each connecting strip 312 is fixedly connected with the U-shaped block 311, and the other end is fixedly connected with the fixed frame 313. The fixed frame 313 is a square frame. The fixed frame 313 and the two connecting strips 312 jointly define a sliding groove.

[0050] The fixed frame 313 serves as a guide frame. In this embodiment, the outer dimension of the second connecting piece 320 is set to be smaller than the inner dimension of the fixed frame 313. The second connecting piece 320 is provided with a threaded hole 323. The threaded hole 323 is in communication with the movable groove 321. The threaded hole 323 is located at one end of the second connecting piece 320 away from the second U-shaped groove 322.

[0051] The threaded hole 323 is in threaded connection with the screw rod 330 after the screw rod 330 passes through the fixed frame 313.

[0052] In installation, the screw rod 330 is rotated to change the relative position of the first connecting piece 310 and the second connecting piece 320. In this way, the length of the second buckling mechanism 300 can be adjusted, and the length of the second buckling mechanism 300 can be fixed. Due to the hinged relationship between the second buckling mechanism 300 and the two adjacent extension pieces 120, adjusting the length of the second buckling mechanism 300 can adjust the included angle of the two adjacent support templates 100, thereby forming a triangular fixed support for the two adjacent support templates 100.

[0053] Please refer to Figures 1 to 3 Based on the above, the template support construction method is further described as follows: S100. Measure the length of each side of the polygonal hole. According to the length of each side, the length of each support template 100 is pre-adjusted.

[0054] S200. Construct a first support template 100 on the first side of the hole, and construct a second support template 100 on the second side of the hole. Connect the first support template 100 and the second support template 100, and install a second buckling mechanism 300 between the first support template 100 and the second support template 100.

[0055] The two adjacent support templates 100 are connected to a connecting steel column 123. Specifically, the first hook block 121 and the second hook block 122 are hinged through the connecting steel column 123.

[0056] S300. According to the included angle of the first side and the second side, the second buckling mechanism 300 is adjusted until the included angle of the first support template 100 and the first support template 100 is equal to the included angle of the first side and the second side.

[0057] S400. Continue to construct the remaining support formwork 100.

[0058] The remaining edges of the opening are fixed in the same way, and the last connecting node cannot be fixed by the second buckling mechanism 300, that is, all connecting nodes except the last connecting node are fixed by the second buckling mechanism 300, and the last connecting node refers to the last connecting node in the construction sequence.

[0059] S500. Cut the first buckling mechanism 200 in the connecting node between the last support formwork 100 and the first support formwork 100, and adjust the included angle by the first buckling mechanism 200.

[0060] The embodiment realizes the adjustable length of the support formwork 100 by the support formwork body 110 and the two extension pieces 120, which is suitable for polygonal openings of different sizes, and the first buckling mechanism 200 and the second buckling mechanism 300 of the embodiment improve the support performance of the connecting node, and the incircle installation of the second buckling mechanism 300 is suitable for the closed fixation of the polygonal formwork support, which improves the stability and reliability of the formwork support.

[0061] Embodiment two Please refer to Figure 3 Based on embodiment one, the embodiment is improved, and the improvement is that the support formwork 100 further comprises a welding heightening piece 170, an extension plate 180 and an inclined angle support plate 190.

[0062] The welding heightening piece 170 is used to improve the connection height of the first hook block 121 and the second hook block 122, and the extension plate 180 is arranged in the middle of the connecting steel column 123, the connecting steel column 123 penetrates and rotates to connect the extension plate 180, one side of the extension plate 180 is provided with the inclined angle support plate 190, and the inclined angle support plate 190 is arranged between the two groups of support horizontal plates and supports the intersection between the included angles of the two groups of support horizontal plates. In use, the intersection of the included angles of the support surfaces of the two groups of support formworks 100 is covered with rubber pads and the like, and the inclined angle support plate 190 is used to support the intersection of the included angles, which can maximize the support strength, facilitate subsequent pouring or fixing support, meet the support requirements of different angles, and facilitate the adaptation to polygonal openings.

[0063] In some embodiments, the extension plate 180 is further provided with an abutting table 181, which can abut one end of the second sliding piece 140 when the two support formworks 100 are linearly spliced, so as to prevent the extension plate 180 from being bent and curved, and improve the support stability of the embodiment.

[0064] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A hole opening frame template support adjustable shore, characterized in that, The support template includes a plurality of support templates, a first fastening mechanism and a second fastening mechanism. The plurality of support templates are connected to each other and have shapes that are adapted to the shapes of the openings. The connection between the inner sides of adjacent support templates defines a connection node. The first fastening mechanism is arranged at one of the connection nodes. The second fastening mechanism is arranged at the remaining connection nodes. One second fastening mechanism is arranged at one corresponding connection node. Each support template includes a template body and two extension pieces. The two extension pieces are arranged at the two ends of the template body. Each extension piece slides along the length direction of the template body relative to the template body. The first fastening mechanism includes a first fastening piece and a second fastening piece. The first fastening piece and the second fastening piece are matched to fix the connection node. Each second fastening mechanism includes a first connecting piece and a second connecting piece. The first connecting piece and the second connecting piece slide along the length direction of the second fastening mechanism. The first connecting piece is hinged to the extension piece of one support template. The second connecting piece is hinged to the extension piece of an adjacent support template.

2. The adjustable shore for a hole frame and form assembly of claim 1, wherein, Each support template further includes a first sliding piece and two second sliding pieces. The two second sliding pieces are arranged at the two ends of the first sliding piece. Each second sliding piece slides along the length direction of the template body relative to the first sliding piece. The first sliding piece is fixed to the template body. One second sliding piece is fixed to one extension piece.

3. The adjustable shore for a hole frame and form assembly of claim 2, wherein: The cross section of the first sliding piece is larger than the cross section of the second sliding piece. The second sliding piece is inserted into the first sliding piece.

4. The adjustable shore for a hole frame and form assembly of any one of claims 1 to 3, wherein, Adjacent support templates are hinged. At one connection node, the extension piece of one support template is provided with a first hook block. The extension piece of an adjacent support template is provided with a second hook block. The first hook block and the second hook block are hinged by a connecting steel column.

5. The adjustable shore for a hole form tieback as claimed in any one of claims 1 to 3, wherein, Each extension piece is provided with a fixing block. At one connection node, the first connecting piece is hinged to one fixing block by a hinge shaft. The second connecting piece is hinged to another fixing block by a hinge shaft.

6. The adjustable shore for a hole form tieback as claimed in claim 5, wherein, The first fastening piece is provided with a first open slot. The second fastening piece is provided with a second open slot. The openings of the first open slot and the second open slot are arranged opposite to each other and jointly define a receiving slot. The two hinge shafts are located in the receiving slot. Each hinge shaft abuts the slot wall of the receiving slot.

7. The adjustable shore for a hole form tieback as claimed in claim 6, wherein, One first fastening piece and one second fastening piece form a first fastening mechanism. The number of first fastening mechanisms is multiple groups. The number of fixing blocks on each extension piece is consistent with and corresponds to the number of fastening mechanisms. The multiple groups of first fastening mechanisms are arranged in the width direction of the template body. The multiple first fastening pieces are provided with first fixing pieces. The multiple second fastening pieces are provided with second fixing pieces. The second fixing pieces are fixedly connected to the first fixing pieces by fasteners.

8. The adjustable shore for a hole form tieback as defined in Claim 5 wherein, One end of the first connecting piece is provided with a first U-shaped slot, one end of the second connecting piece is provided with a second U-shaped slot, the opening of the first U-shaped slot is arranged opposite to the opening of the second U-shaped slot, one of the articulated shafts is located in the first U-shaped slot, and the other articulated shaft is located in the second U-shaped slot.

9. The adjustable shore for a hole form tieback as claimed in claim 8, wherein, Each of the second buckling mechanisms further comprises a screw rod, the first connecting piece is provided with a sliding slot, the sliding slot is not communicated with the first U-shaped slot, the second connecting piece is provided with a movable slot, the movable slot is not communicated with the second U-shaped slot, and the screw rod is arranged in the sliding slot and the movable slot.

10. A method of formwork construction, characterised in that, The construction method using the adjustable support of the hole opening frame template support of any one of claims 1 to 9 comprises: The length of each side of the polygonal hole opening is measured, and the length of each support template is pre-adjusted according to the length value of each side; A first support template is constructed on the first side length of the hole opening, a second support template is constructed on the second side length of the hole opening, the first support template and the second support template are connected, and a second buckling mechanism is installed between the first support template and the second support template; According to the included angle of the first side length and the second side length, the second buckling mechanism is adjusted until the included angle of the first support template and the first support template is equal to the included angle of the first side length and the second side length; The remaining support templates are continuously constructed; The first buckling mechanism is cut and constructed in the connecting node between the last support template and the first support template, and the included angle is adjusted through the first buckling mechanism.

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