A three-limbed grid installation tool and template system

Abstract

The utility model relates to a kind of installation tool and template system of three-limb grid, column is used to vertically connect base and tool mounting seat, and base is used to connect in inverted arch side template, tool mounting seat cantilever connection on the upper end of column, so that the cantilever end of tool mounting seat is equipped with the tool positioning connecting hole corresponding with the three-limb grid positioning connecting hole of three-limb grid bottom section top, it can be detachably connected in corresponding three-limb grid positioning connecting hole, and then three-limb grid bottom section can be positioned and fixed using inverted arch side template stress, so that the bottom of three-limb grid bottom section is embedded in the inverted arch side surface pouring area inside inverted arch side template, and then the positioning construction of three-limb grid is completed, this construction method is simpler and more standard;And tool positioning connecting hole can be detached with corresponding three-limb grid positioning connecting hole, can be converted with inverted arch side template.

Description

Technical Field

[0001] This utility model relates to the field of three-limb grid installation technology, and in particular to an installation tooling and template system for three-limb grids. Background Technology

[0002] In tunnel construction, under specific complex or high-risk geological conditions, three-limb geogrids are used as arch frames to strengthen the initial support in order to provide greater load-bearing capacity, stiffness, and overall stability. These three-limb geogrids are spaced apart along the longitudinal direction of the tunnel. To ensure the stable load-bearing capacity of the three-limb geogrids, both ends need to be embedded on the sides of the invert arch. During construction, it is often necessary to use a large amount of steel reinforcement to position the ends of the three-limb geogrids before pouring the invert arch sides on both sides of the tunnel transversely. However, this method requires experienced construction workers, leading to inconsistent positioning of the three-limb geogrids and complicating the construction process. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, which uses a large number of steel bars to position the two ends of the three-limb grid, resulting in non-standard positioning of the three-limb grid, which is not conducive to the positioning construction of the three-limb grid and thus causes the construction to be complicated. This utility model provides an installation tooling and template system for the three-limb grid.

[0004] In a first aspect, this utility model provides an installation fixture for a three-limbed grille, comprising:

[0005] A base for connecting to the side formwork of the inverted arch;

[0006] A column, the lower end of which is vertically connected to the top of the base;

[0007] The tooling mounting base is cantilevered and connected to the upper end of the column. The cantilever end of the tooling mounting base is provided with a tooling positioning connection hole corresponding to the three-limb grid positioning connection hole at the top of the bottom segment of the three-limb grid. The tooling positioning connection hole can be detachably connected to the corresponding three-limb grid positioning connection hole.

[0008] Among them, the invert arch side formwork is the formwork used for constructing the side of the invert arch, and the ends of the three-limb grid need to be pre-embedded in the plain concrete on the side of the invert arch.

[0009] The installation fixture for the three-limb grid described in this utility model has a column for vertically connecting the base and the fixture mounting seat. The base is used to connect to the invert arch side formwork. The fixture mounting seat is cantilevered to the upper end of the column, so that the cantilever end of the fixture mounting seat has a fixture positioning connection hole corresponding to the three-limb grid positioning connection hole at the top of the bottom segment of the three-limb grid. It can be detachably connected to the corresponding three-limb grid positioning connection hole, thereby using the force of the invert arch side formwork to position and fix the bottom segment of the three-limb grid. This allows the bottom of the bottom segment of the three-limb grid to be pre-embedded in the area to be poured on the side of the invert arch inside the invert arch side formwork, thus completing the positioning construction of the three-limb grid. This construction method does not require the use of steel bars and the experience of construction personnel to position the ends of the three-limb grid, making the construction simpler and more standardized. Moreover, the fixture positioning connection hole can be detached from the corresponding three-limb grid positioning connection hole and can be reused along with the invert arch side formwork.

[0010] Preferably, the base is provided with a plurality of fixing connection holes, and the base is detachably connected to the top of the inverted arch side template through the fixing connection holes.

[0011] Preferably, the column includes an upper column and a lower column. The lower end of the lower column is connected to the base, and the upper end of the upper column is connected to the tooling mounting seat. The upper end of the lower column and the lower end of the upper column are hinged together by a hinge seat. The hinge axis of the hinge seat is set along the length direction of the arch side template, and the tooling mounting seat is cantilevered toward the inside of the arch side template.

[0012] The tooling mounting base and the upper column can be flipped in the direction of the inner and outer sides of the arch side template using the hinge axis of the hinge base, which facilitates the disassembly of the tooling positioning connection hole and the corresponding three-limb grid positioning connection hole, and facilitates smooth conversion.

[0013] Preferably, the tooling mounting base includes a support base and two positioning bases, the support base and the two positioning bases are arranged in a triangle, one end of the two positioning bases intersects and is connected, the other end of the two positioning bases is away from each other and is connected through the support base, the upper column is connected to the longitudinal middle of the support base, and both positioning bases are provided with tooling positioning connection holes.

[0014] Preferably, the two positioning seats are reinforced at their far ends by a first reinforcing rib; the two positioning seats are reinforced at their intersecting ends by a second reinforcing rib; the first reinforcing rib is located between the second reinforcing rib and the support seat;

[0015] The longitudinal midpoints of the two positioning seats are respectively provided with diagonal braces between them and the column.

[0016] Preferably, the two positioning seats are angle steel, each of the two positioning seats includes a horizontal plate and a vertical plate, the horizontal plate of the two positioning seats is provided with the tooling positioning connection hole, the vertical plate of the two positioning seats is located on the outside of the two positioning seats, and the two ends of the support seat are connected to the horizontal plate of the two positioning seats.

[0017] Preferably, the base is a base plate, the column is an I-beam or an H-beam, and stiffening ribs are respectively provided between the two sides of the web of the base plate and the column.

[0018] Preferably, all the tooling positioning connection holes and all the three-limb grid positioning connection holes are respectively arranged in corresponding isosceles trapezoidal shapes.

[0019] In a second aspect, the present invention provides a template system, including an arch side template and several installation fixtures for a three-limb grid, wherein all the installation fixtures for the three-limb grid are spaced apart along the length direction of the arch side template corresponding to the bottom segments of the three-limb grid, the base of the installation fixture for the three-limb grid is connected to the arch side template, and the fixture mounting seat of the installation fixture for the three-limb grid is cantilevered toward the inside of the arch side template.

[0020] In the template system described in this utility model, all the installation tools for the three-limb grids are set at intervals along the length direction of the invert arch side template corresponding to the bottom segments of the three-limb grids, so that the bottom segments of the three-limb grids can be quickly positioned and fixed before pouring the concrete on the side of the invert arch, thereby enabling the rapid construction of the concrete on the side of the invert arch.

[0021] Preferably, the base of the installation fixture for the three-limb grid is connected to the top surface of the inverted arch side template.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model provides an installation fixture for a three-limb grid. A column is used to vertically connect a base and a fixture mounting seat. The base is connected to the invert arch side formwork. The fixture mounting seat is cantilevered to the upper end of the column, with a fixture positioning connection hole at the cantilever end corresponding to the three-limb grid positioning connection hole at the top of the bottom segment of the three-limb grid. This allows for detachable connection to the corresponding three-limb grid positioning connection hole, enabling the bottom segment of the three-limb grid to be positioned and fixed using the force of the invert arch side formwork. The bottom of the bottom segment of the three-limb grid is pre-embedded in the area to be poured on the invert arch side side of the invert arch side formwork, thus completing the positioning construction of the three-limb grid. This construction method eliminates the need for rebar and the experience of construction personnel to position the ends of the three-limb grid, making the construction simpler and more standardized. Furthermore, the fixture positioning connection hole can be detached from the corresponding three-limb grid positioning connection hole and can be reused along with the invert arch side formwork.

[0024] 2. This utility model provides a template system in which the installation fixtures of all the three-limb grids are set at intervals along the length direction of the invert arch side template corresponding to the bottom segments of the three-limb grids, so that the bottom segments of the three-limb grids can be quickly positioned and fixed before pouring the concrete on the side of the invert arch, thereby enabling the rapid construction of the concrete on the side of the invert arch. Attached Figure Description

[0025] Figure 1 A front view of the installation fixture for the three-limb grille;

[0026] Figure 2 This is a schematic diagram of the right side of the installation fixture for the three-limb grille;

[0027] Figure 3 This is a schematic diagram of the left side of the installation fixture for the three-limb grille;

[0028] Figure 4 A top view schematic diagram of the installation fixture for the three-limb grille;

[0029] Figure 5 This is a top view of the base plate;

[0030] Figure 6 This is a top view of the bottom segment of the three-limbed grille;

[0031] Figure 7 A schematic diagram of the fixture used to fix the bottom segment of the three-limb grid;

[0032] Figure 8 for Figure 7 Enlarged view of a portion of the area within box A;

[0033] Figure 9 A schematic diagram showing the flipping and removal of the installation fixture for the three-limb grid after the bottom segment of the three-limb grid has been installed;

[0034] Figure 10 for Figure 9 A magnified view of a portion of the square frame B;

[0035] Figure 11 A schematic diagram showing the installation of the three-limb grid installation fixture on the side template of the inverted arch;

[0036] Figure 12 for Figure 11 A magnified view of the area at circle C in the middle.

[0037] The diagram shows the following markings: 1. Installation fixture for the three-limb grid; 11. Base; 101. Fixing connection hole; 111. Stiffening rib; 12. Lower column; 13. Upper column; 14. Hinge seat; 141. Hinge shaft; 15. Positioning seat; 151. Fixture positioning connection hole; 16. Diagonal brace; 17. Support seat; 181. First reinforcing rib; 182. Second reinforcing rib; 2. Bottom segment of the three-limb grid; 21. Main limb; 22. Connecting reinforcing bar; 23. Three-limb grid fixing seat; 231. Three-limb grid positioning connection hole; 3. Tunnel; 31. Side of the invert arch; 4. Side formwork of the invert arch; 41. Sub-formwork; 411. Drainage hole; 412. Waterproof connecting strip. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0039] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are set as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," "parallel," or "coaxial" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0041] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0042] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0043] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0044] Example 1

[0045] like Figures 1-5 As shown, a three-limb grid mounting fixture includes: a base 11, a column, and a fixture mounting seat;

[0046] The base 11 is used to connect to the invert arch side formwork 4; wherein, the base 11 can be directly fixed to the invert arch side formwork 4, or it can be detachably connected to the invert arch side formwork 4, which is the formwork used for constructing the side surface 31 of the invert arch, such as... Figures 7-8 As shown, the ends of the three-limb grid need to be embedded in the plain concrete on the side 31 of the invert arch.

[0047] In optional implementations, such as Figure 5 As shown, the base 11 is provided with a plurality of fixed connection holes 101. The base 11 is detachably connected to the top of the arch side template 4 through the fixed connection holes 101, which facilitates disassembly and reuse on other arch side templates 4.

[0048] In this embodiment, the lower end of the column is vertically connected to the upper part of the base 11; the tooling mounting seat is cantilevered and connected to the upper end of the column; the column is used to vertically connect the base 11 and the tooling mounting seat, and transmits force between the tooling mounting seat and the base 11. The column can be made of various types of steel or a structure capable of vertical support. The cantilever end of the tooling mounting seat is provided with a tooling positioning connection hole 151 corresponding to the three-limb grid positioning connection hole 231 at the top of the bottom segment 2 of the three-limb grid. The tooling positioning connection hole 151 can be detachably connected to the corresponding three-limb grid positioning connection hole 231.

[0049] In an optional embodiment, the base 11 is a base plate, such as... Figure 5 As shown, the base plate is a rectangular plate, and four fixing connection holes 101 are arranged in a rectangular array on the base plate. The fixing connection holes 101 are used for bolt connection with the invert arch side formwork 4. The column is an I-beam or H-beam, and stiffening ribs 111 are respectively provided between the base plate and the two sides of the web of the column, such as... Figure 3 As shown, when the base 11 is a base plate and the column is an I-beam or H-beam, it is lightweight and easy to install on the inverted arch side formwork 4. The stiffening ribs 111 can strengthen the web between the base plate and the column, ensuring stable stress.

[0050] In optional implementations, such as Figure 2 and Figure 3 As shown, the column includes an upper column 13 and a lower column 12. The lower end of the lower column 12 is connected to the base 11, and the upper end of the upper column 13 is connected to the tooling mounting seat. The upper end of the lower column 12 and the lower end of the upper column 13 are hinged together by a hinge seat 14. The hinge seat 14 can be a hinge, and the hinge axis 141 of the hinge seat 14 is set along the length direction of the inverted arch side template 4, as shown. Figure 12 As shown; the tooling mounting base is cantilevered towards the inner side of the arch-side template 4, as... Figures 7-10As shown, the tooling mounting base and the upper column 13 are flipped in the direction of the inner and outer sides of the arch side template 4 using the hinge shaft 141 of the hinge base 14, which facilitates the disassembly of the tooling positioning connection hole 151 and the corresponding three-limb grid positioning connection hole 231, and facilitates smooth conversion.

[0051] In optional implementations, such as Figures 1-4 As shown, the tooling mounting base includes a support base 17 and two positioning seats 15. The support base 17 and the two positioning seats 15 are triangularly distributed. One end of the two positioning seats 15 intersects and is connected, and the other end of the two positioning seats 15 is away from and connected to the support base 17. The upper column 13 is connected to the longitudinal middle of the support base 17. Both positioning seats 15 are provided with tooling positioning connection holes 151. When the column supports the support base 17, the two positioning seats 15 are cantilevered toward the inner side of the arch side template 4, so that the tooling positioning connection holes 151 of the positioning seats 15 can be located directly above the area to be poured on the inner side of the arch side template 4, for connecting with the positioning connection holes 231 of the three-limb grid to position and fix the bottom segment 2 of the three-limb grid.

[0052] In optional implementations, such as Figure 1 , Figure 3 and Figure 4 As shown, the two positioning seats 15 are reinforced at their far ends by a first reinforcing rib 181; the two positioning seats 15 are reinforced at their intersecting ends by a second reinforcing rib 182, which enhances the stability when the bottom segment 2 of the three-limb grid is cantilevered and fixed. The first reinforcing rib 181 is located between the second reinforcing rib 182 and the support seat 17, allowing the support seat 17 to be positioned close to the end of the positioning seat, thus avoiding the positioning seat from being too long and occupying tunnel construction space, and reducing material costs. The longitudinal middle portions of the two positioning seats 15 are respectively provided with diagonal braces 16 between themselves and the column, which can support the positioning seats 15 and enhance the stability when the bottom segment 2 of the three-limb grid is cantilevered and fixed.

[0053] In this embodiment, the positioning seat and the support seat can be various types of steel or support structures with length. In an optional embodiment, the two positioning seats 15 are angle steel, and each of the two positioning seats 15 includes a horizontal plate and a vertical plate. The horizontal plate of the two positioning seats 15 facilitates the setting of the tooling positioning connection hole 151, and the vertical plate of the two positioning seats 15 is located on the outside of the two positioning seats 15, which can cover and protect the tooling positioning connection hole 151. The two ends of the support seat 17 are connected to the horizontal plates of the two positioning seats 15, which is convenient and stable.

[0054] In an optional embodiment, all the tooling positioning connection holes 151 and all the three-limb grid positioning connection holes 231 are respectively arranged in corresponding isosceles trapezoidal shapes. For example... Figure 4 As shown, all the tooling positioning connection holes 151 are arranged in corresponding isosceles trapezoidal shapes, such as... Figure 6 As shown, the bottom segment 2 of the three-limb grid includes three main limbs 21 arranged in a triangle. The three main limbs 21 are connected to each other by several connecting steel bars 22 to form a whole. Three-limb grid fixing seats 23 are provided on both sides of the triangle formed by the three main limbs 21. The three-limb grid fixing seats 23 can be made of angle steel. The vertical plates of the angle steel are welded to the sides of the connecting steel bars 22 between the corresponding two main limbs 21. The horizontal plates of the angle steel are used to set two three-limb grid positioning connection holes 231. All the three-limb grid positioning connection holes 231 are arranged in an isosceles trapezoidal shape. Figure 4 and Figure 6 The tooling positioning connection hole 151 and the three-limb grid positioning connection hole 231 in the middle can correspond one-to-one and can be detachably connected by bolts.

[0055] The installation fixture for the three-limb grid described in this embodiment has a column for vertically connecting the base 11 and the fixture mounting seat. The base 11 is connected to the invert arch side formwork 4. The fixture mounting seat is cantilevered to the upper end of the column, so that the cantilever end of the fixture mounting seat has a fixture positioning connection hole 151 corresponding to the three-limb grid positioning connection hole 231 at the top of the bottom segment 2 of the three-limb grid. It can be detachably connected to the corresponding three-limb grid positioning connection hole 231, thereby using the force of the invert arch side formwork 4 to position and fix the bottom segment 2 of the three-limb grid. The bottom of the bottom segment 2 of the three-limb grid is pre-embedded in the area to be poured on the side of the invert arch inside the invert arch side formwork 4, thereby completing the positioning construction of the three-limb grid. This construction method does not require the use of steel bars and the experience of construction personnel to position the ends of the three-limb grid, making the construction simpler and more standardized. Moreover, the fixture positioning connection hole 151 can be detached from the corresponding three-limb grid positioning connection hole 231 and can be reused along with the invert arch side formwork 4.

[0056] Example 2

[0057] like Figures 11-12As shown, a template system includes an inverted arch side template 4 and several installation fixtures 1 for the three-limb grids. All the installation fixtures 1 for the three-limb grids are spaced apart along the length of the inverted arch side template 4, corresponding to the bottom segments 2 of the three-limb grids. The base 11 of each installation fixture 1 is connected to the inverted arch side template 4, and the fixture mounting seat of each installation fixture cantilevered towards the inner side of the inverted arch side template 4. For example, if the three-limb grids are spaced 1m apart along the longitudinal direction of the tunnel 3, then the bottom segments 2 of the three-limb grids are also spaced 1m apart along the longitudinal direction of the tunnel 3, and the installation fixtures 1 for the three-limb grids are also spaced 1m apart along the longitudinal direction of the tunnel 3. Since the inverted arch side template 4 is also spaced 1m apart along the length of the inverted arch side template 4, after the inverted arch side template 4 is installed at the corresponding position within the tunnel 3, each bottom segment 2 of the three-limb grid has a corresponding installation fixture 1 for positioning and fixing.

[0058] In optional implementations, such as Figures 7-12 As shown, the base 11 of the installation fixture 1 for the three-limb grid is connected to the top surface of the inverted arch side template 4, which makes installation convenient and more stable.

[0059] In an optional embodiment, the invert arch side formwork 4 is the length of one cycle of tunnel 3 construction. The invert arch side formwork 4 is divided into several sub-formworks 41, each sub-formwork 41 having drainage holes 411 on its side for drainage as needed. Adjacent sub-formworks 41 are sealed together by waterproof connecting strips 412 to form a complete invert arch side formwork 4. Assembling the invert arch side formwork 4 using sub-formworks 41 facilitates transportation.

[0060] In use, the template system of this utility model employs multiple sub-templates 41 to assemble the arch side template 4 and install it on the outside of the arch side surface 31. The arch side template 4 is fixed using an arch trestle or other reinforcement methods. The base 11 of the three-limb grid installation fixture 1 is bolted to the pre-set mounting holes on the top surface of the arch side template 4, forming a fixed structure. This allows the fixture mounting seat of the three-limb grid installation fixture 1 to be suspended above the space to be poured on the arch side surface 31 inside the arch side template 4. The upper column 13 and the fixture mounting seat of the three-limb grid installation fixture 1 are rotated around the hinge axis 141 of the hinge seat 14 towards the outside of the arch side template 4. Figure 10As shown; then install the bottom segment 2 of the three-limb grid so that its bottom is located in the space to be poured on the side 31 of the inverted arch, inside the side formwork 4 of the inverted arch; rotate the upper column 13 and the mounting base of the three-limb grid installation fixture 1 around the hinge axis 141 of the hinge seat 14 towards the inside of the side formwork 4 of the inverted arch, so that the fixing connection hole 101 of the three-limb grid installation fixture 1 and the positioning connection hole 231 of the three-limb grid at the top of the bottom segment 2 of the three-limb grid are aligned, and then fixed by bolt connection to achieve the positioning and fixing of the bottom segment 2 of the three-limb grid. Then pour plain concrete on the side 31 of the inverted arch. After the plain concrete has solidified, the fixing of the fixing connection hole 101 and the positioning connection hole 231 of the three-limb grid can be removed. Then rotate the upper column 13 and the mounting base of the three-limb grid installation fixture 1 around the hinge axis 141 of the hinge seat 14 towards the outside of the side formwork 4 of the inverted arch, as shown. Figure 10 As shown, removing the fixing to the invert side formwork 4 allows the invert side formwork 4 and the installation fixture 1 for the three-limb grid to be moved longitudinally forward of the tunnel 3 as a whole, enabling the next cycle of construction. The bottom segment 2 of the three-limb grid has already been positioned. The positioning connection hole 231 at the top of the bottom segment 2 can be used as an installation hole for constructing other segments of the three-limb grid, ensuring the construction quality of the three-limb grid.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An installation fixture for a three-limb grid, characterized in that, include: Base (11), the base (11) is used to connect to the invert arch side formwork (4); A column, the lower end of which is vertically connected to the top of the base (11); Tooling mounting base, the tooling mounting base is cantilevered and connected to the upper end of the column, the cantilever end of the tooling mounting base is provided with tooling positioning connection hole (151) corresponding to the three-limb grid positioning connection hole (231) at the top of the bottom segment (2) of the three-limb grid, the tooling positioning connection hole (151) can be detachably connected to the corresponding three-limb grid positioning connection hole (231).

2. The installation fixture for a three-limb grille according to claim 1, characterized in that, The base (11) is provided with several fixed connection holes (101), and the base (11) is detachably connected to the top of the arch side template (4) through the fixed connection holes (101).

3. The installation fixture for a three-limb grille according to claim 1, characterized in that, The column includes an upper column (13) and a lower column (12). The lower end of the lower column (12) is connected to the base (11), and the upper end of the upper column (13) is connected to the tooling mounting seat. The upper end of the lower column (12) and the lower end of the upper column (13) are hinged together by a hinge seat (14). The hinge axis (141) of the hinge seat (14) is set along the length direction of the arch side template (4). The tooling mounting seat is cantilevered toward the inside of the arch side template (4).

4. The installation fixture for a three-limb grille according to claim 3, characterized in that, The tooling mounting base includes a support base (17) and two positioning bases (15). The support base (17) and the two positioning bases (15) are arranged in a triangle. One end of the two positioning bases (15) intersects and is connected. The other end of the two positioning bases (15) is far away and connected through the support base (17). The upper column (13) is connected to the longitudinal center of the support base (17). Both positioning bases (15) are provided with tooling positioning connection holes (151).

5. The installation fixture for a three-limb grille according to claim 4, characterized in that, The two positioning seats (15) are connected and reinforced at opposite ends by a first reinforcing rib (181); the two positioning seats (15) are connected and reinforced at opposite ends by a second reinforcing rib (182); the first reinforcing rib (181) is located between the second reinforcing rib (182) and the support seat (17); The longitudinal midpoints of the two positioning seats (15) are respectively provided with diagonal braces (16) between them and the column.

6. The installation fixture for a three-limb grille according to claim 4, characterized in that, The two positioning seats (15) are angle steel. Both positioning seats (15) include a horizontal plate and a vertical plate. The horizontal plate of the two positioning seats (15) is provided with the tooling positioning connection hole (151). The vertical plate of the two positioning seats (15) is located on the outside of the two positioning seats (15). The two ends of the support seat (17) are connected to the horizontal plate of the two positioning seats (15).

7. The installation fixture for a three-limb grille according to any one of claims 1-6, characterized in that, The base (11) is a base plate, the column is an I-beam or an H-beam, and stiffening ribs (111) are respectively provided between the two sides of the web of the base plate and the column.

8. The installation fixture for a three-limb grille according to any one of claims 1-6, characterized in that, All the tooling positioning connection holes (151) and all the three-limb grid positioning connection holes (231) are respectively arranged in corresponding isosceles trapezoidal shapes.

9. A template system, characterized in that, The installation includes an inverted arch side template (4) and several installation fixtures for a three-limb grid as described in any one of claims 1-8. All the installation fixtures for the three-limb grid are spaced apart along the length direction of the inverted arch side template (4) corresponding to the bottom segments (2) of the three-limb grid. The base (11) of the installation fixture for the three-limb grid is connected to the inverted arch side template (4), and the fixture mounting seat of the installation fixture for the three-limb grid is cantilevered toward the inside of the inverted arch side template (4).

10. A template system according to claim 9, characterized in that, The base (11) of the installation fixture for the three-limb grid is connected to the top surface of the inverted arch side template (4).

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