Hole forming template

Abstract

The invention discloses a hole forming formwork, and relates to the technical field of construction tools, and the hole forming formwork comprises a flexible connecting piece, a formwork body and a supporting assembly. The flexible connecting piece is annularly coiled, and the annular diameter of the flexible connecting piece is adjustable; the template body comprises a plurality of arc-shaped splicing units, the arc-shaped splicing units are arranged around the flexible connecting piece, each arc-shaped splicing unit is connected with the flexible connecting piece, any two adjacent arc-shaped splicing units abut against each other so as to be spliced into the annular template, and the number of the arc-shaped splicing units can be adjusted; the supporting assembly comprises a supporting column and a plurality of telescopic rods, the supporting column is arranged in the annular interior of the flexible connecting piece, the multiple telescopic rods are arranged around the supporting column, one end of each telescopic rod is connected with the supporting column, and the other end of each telescopic rod is connected with the flexible connecting piece. The hole forming template can be suitable for reserved holes with different diameters.

Description

Technical Field

[0001] The present invention relates to the technical field of construction tools, in particular to a hole forming template. Background Art

[0002] Preserving circular holes is a common and crucial step in building construction. These holes include those reserved for mechanical and electrical pipelines, equipment installation holes, material transportation holes, water supply and drainage holes, and maintenance manholes. Traditional methods for preserving circular holes typically use wooden formwork assembled on-site to form a circular structure. The formwork is then installed into the concrete structure through nailing or fixed supports, and concrete is then poured to form the desired circular holes. However, formwork produced using this method is typically single-use or only suitable for holes of a specific size, making it difficult to reuse, which in turn affects overall construction efficiency. Summary of the Invention

[0003] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a hole forming template that can be used for reserved holes of different diameters.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows: The present application provides a hole forming template, comprising: a flexible connector, which is rolled in a ring shape, and the ring diameter of the flexible connector is adjustable; a template body, comprising a plurality of arc-shaped splicing units, the plurality of arc-shaped splicing units are arranged around the flexible connector, and each of the arc-shaped splicing units is connected to the flexible connector, and any two adjacent arc-shaped splicing units abut to form a ring-shaped template, and the number of the arc-shaped splicing units is adjustable; a support assembly, comprising a support column and a plurality of telescopic rods, the support column is arranged inside the ring shape of the flexible connector, the plurality of telescopic rods are arranged around the support column, and one end of the telescopic rod is connected to the support column, and the other end of the telescopic rod is connected to the flexible connector.

[0005] In an optional embodiment, the hole forming template further includes a fastening assembly, and each of the fastening assemblies is simultaneously connected to the flexible connector and one of the arc-shaped splicing units.

[0006] In an optional embodiment, the tail end of the flexible connector is at least partially overlapped on the head end of the flexible connector to form an overlapping section, and at least one of the fastening components is connected to the overlapping section.

[0007] In an optional embodiment, the fastening assembly includes a connector and a fastener, the connector is simultaneously connected to the flexible connector and one of the arc-shaped splicing units, the fastener is connected to the connector and abuts against a side of the flexible connector away from the arc-shaped splicing unit.

[0008] In an optional embodiment, a plurality of first connecting grooves are further provided on a side of the flexible connector away from the arc-shaped splicing unit, and the plurality of first connecting grooves are arranged at circumferential intervals along the flexible connector, and the number of the first connecting grooves is equal to the number of the telescopic rods. The support assembly also includes a first connecting rod, one end of the first connecting rod is connected to an end of the telescopic rod close to the flexible connector, and the other end of the first connecting rod is clamped in one of the first connecting grooves and is universally rotatable relative to the first connecting groove.

[0009] In an optional embodiment, the support column is provided with a connecting groove group, the connecting groove group includes a plurality of second connecting grooves, the plurality of second connecting grooves are arranged at circumferential intervals along the support column, and the number of the second connecting grooves is equal to the number of the telescopic rods, the support assembly also includes a second connecting rod, one end of the second connecting rod is connected to one end of the telescopic rod close to the support column, and the other end of the second connecting rod is clamped in one of the second connecting grooves and is universally rotatable relative to the second connecting groove.

[0010] In an optional embodiment, there are multiple connection groove groups, and the multiple connection groove groups are arranged at intervals along the axial direction of the support column.

[0011] In an optional embodiment, the support assembly further includes a guide sleeve, which is sleeved on the support column and located at the connecting groove group. The guide sleeve is provided with a plurality of guide holes, each of which is connected to a second connecting groove, and the end of the second connecting rod away from the telescopic rod is simultaneously passed through the guide hole and the second connecting groove.

[0012] In an optional embodiment, the telescopic rod has a plurality of telescopic parts, the plurality of telescopic parts are connected in sequence, and any two adjacent telescopic parts can be telescoped with each other.

[0013] In an optional embodiment, the support assembly further includes a plurality of limit pins, and each of the limit pins is simultaneously provided through any two adjacent telescopic parts of the same telescopic rod.

[0014] The hole forming template of this application has the following advantages: In the hole forming template of the present application, a plurality of arc splicing units can be spliced together to form an annular template, so that the annular template can be used as a template for hole forming. Since the flexible connector is rolled in an annular shape, a plurality of arc splicing units are arranged around the flexible connector, and each arc splicing unit is connected to the flexible connector, the flexible connector can be used to shape and fix the plurality of arc splicing units, so that the plurality of arc splicing units are spliced together to form a stable annular template structure, thereby improving the construction effect of the reserved holes. Since the annular diameter of the flexible connector is adjustable and the number of arc splicing units is adjustable, the hole forming template can be adapted to reserved holes of different diameters by adjusting the annular diameter of the flexible connector and the number of arc splicing units, thereby realizing the reuse of the hole forming template to improve construction efficiency. Furthermore, since multiple telescopic rods are arranged around the support column, and one end of the telescopic rod is connected to the support column, and the other end of the telescopic rod is connected to the flexible connector, the flexible connector can be fixed by the support assembly to improve the annular structural stability of the flexible connector, thereby further improving the structural stability of the template body. At the same time, the telescopic rod can be adapted to different annular diameters of the flexible connector by changing the length of the telescopic rod, so as to be adapted to reserved holes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the top view of the hole forming template in this application is shown; Figure 2 The main structural diagram of the hole forming template in this application is shown; Figure 3 Shown Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 4 Shown Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0017] Description of main component symbols: 100-flexible connector; 110-first connecting groove; 200 - template body; 210 - arc-shaped splicing unit; 211 - first side wall; 212 - second side wall; 213 - third side wall; 214 - fourth side wall; 300-support assembly; 310-support column; 311-connecting slot group; 312-second connecting slot; 320-telescopic rod; 321-telescopic portion; 330-first connecting rod; 340-second connecting rod; 350-guide sleeve; 351-guide hole; 400- Fastening assembly; 410- Connector; 420- Fastener. DETAILED DESCRIPTION

[0018] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0021] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0022] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0023] Reference Figure 1 as well as Figure 2 As shown, the hole forming template involved in the embodiment of the present application includes: a flexible connector 100, a template body 200 and a support assembly 300.

[0024] Specifically, the flexible connector 100 is rolled in a ring shape, and the ring diameter of the flexible connector 100 is adjustable; the template body 200 includes a plurality of arc-shaped splicing units 210, and the plurality of arc-shaped splicing units 210 are arranged around the flexible connector 100, and each arc-shaped splicing unit 210 is connected to the flexible connector 100, and any two adjacent arc-shaped splicing units 210 abut to be spliced into a ring template, and the number of arc-shaped splicing units 210 is adjustable; the support assembly 300 includes a support column 310 and a plurality of telescopic rods 320, and the support column 310 is arranged inside the ring of the flexible connector 100, and the plurality of telescopic rods 320 are arranged around the support column 310, and one end of the telescopic rod 320 is connected to the support column 310, and the other end of the telescopic rod 320 is connected to the flexible connector 100.

[0025] In the hole forming template of the present application, a plurality of arc splicing units can be spliced together to form an annular template, so that the annular template can be used as a template for hole forming. Since the flexible connector 100 is annularly rolled, a plurality of arc-shaped splicing units 210 are arranged around the flexible connector 100, and each arc-shaped splicing unit 210 is connected to the flexible connector 100, so that the plurality of arc-shaped splicing units 210 can be shaped and fixed by the flexible connector 100, so that the plurality of arc-shaped splicing units are spliced together to form a stable annular template, thereby improving the construction effect of the reserved holes. Since the annular diameter of the flexible connector 100 is adjustable and the number of arc-shaped splicing units 210 is adjustable, the hole forming template can be adapted to reserved holes of different diameters by adjusting the annular diameter of the flexible connector 100 and the number of arc-shaped splicing units 210, thereby realizing the reuse of the hole forming template to improve construction efficiency. Furthermore, since multiple telescopic rods 320 are arranged around the support column 310, and one end of the telescopic rod 320 is connected to the support column 310, and the other end of the telescopic rod 320 is connected to the flexible connector 100, the flexible connector 100 can be fixed by the support assembly 300 to improve the annular structure stability of the flexible connector 100, thereby further improving the structural stability of the template body 200. At the same time, by changing the length of the telescopic rod 320, the telescopic rod 320 can be adapted to different annular diameters of the flexible connector 100, thereby being adapted to reserved holes of different diameters.

[0026] Reference Figure 3 As shown, the arc-shaped splicing unit 210 has a first side wall 211, a second side wall 212, a third side wall 213 and a fourth side wall 214; wherein, the first side wall 211 and the second side wall 212 are both arc-shaped side walls, and the first side wall 211 is fitted with the flexible connector 100, and the second side walls 212 of multiple arc-shaped splicing units 210 are spliced together to form a circular structure with reserved holes; the third side wall 213 and the fourth side wall 214 are arranged at intervals along the arc direction of the arc-shaped splicing unit 210, and in any two adjacent arc-shaped splicing units 210, the third side wall 213 of one arc-shaped splicing unit 210 is fitted with the fourth side wall 214 of the other arc-shaped splicing unit 210, so that the template body 200 forms an integral structure, thereby improving the structural stability of the template body 200.

[0027] Specifically, in this embodiment, the arc-shaped splicing unit 210 is made of a material that is lightweight, high-strength, has a certain structural rigidity, and is easy to assemble and reuse, such as EPS (Expanded Polystyrene), XPS (Extruded Polystyrene), lightweight plastic or composite material, so as to reduce the weight of the arc-shaped splicing unit 210 and improve the splicing convenience of the arc-shaped splicing unit 210.

[0028] Reference Figure 1 As shown, the hole forming template further includes a fastening assembly 400 , and each fastening assembly 400 is connected to the flexible connector 100 and an arc-shaped splicing unit 210 at the same time.

[0029] In this embodiment, since each fastening component 400 is connected to the flexible connector 100 and an arc-shaped splicing unit 210 at the same time, each arc-shaped splicing unit 210 can be connected to the flexible connector 100 through multiple fastening components 400 to improve the connection stability between the arc-shaped splicing unit 210 and the flexible connector 100, so that multiple arc-shaped splicing units 210 can be shaped by the flexible connector 100, so that multiple arc-shaped splicing units can be spliced to form a stable annular template structure, thereby improving the construction effect of the reserved holes.

[0030] Reference Figure 3 As shown, the tail end of the flexible connector 100 is at least partially overlapped on the head end of the flexible connector 100 to form an overlapping section, and at least one fastening assembly 400 is connected to the overlapping section.

[0031] In this embodiment, the tail end and the head end of the flexible connector 100 can be connected by at least one fastening assembly 400 to improve the structural stability of the flexible connector 100 rolled into a ring. At the same time, the ring diameter of the flexible connector 100 can be changed by changing the length of the overlapping section to adapt to reserved holes of different sizes.

[0032] Continue to refer to Figure 3 As shown, the fastening assembly 400 includes a connector 410 and a fastener 420. The connector 410 is connected to the flexible connector 100 and an arc-shaped splicing unit 210 at the same time. The fastener 420 is connected to the connector 410 and abuts against the side of the flexible connector 100 away from the arc-shaped splicing unit 210.

[0033] In this embodiment, since the connecting member 410 is connected to the flexible connecting member 100 and an arc-shaped splicing unit 210 at the same time, the flexible connecting member 100 can be connected to the arc-shaped splicing unit 210 through the connecting member 410. Since the fastener 420 is connected to the connecting member 410 and abuts against the side of the flexible connecting member 100 away from the arc-shaped splicing unit 210, when the connecting member 410 is connected to the flexible connecting member 100 and an arc-shaped splicing unit 210 at the same time, the connecting member 410 can be fastened by the fastener 420 to improve the connection stability between the connecting member 410 and the flexible connecting member 100 and the arc-shaped splicing unit 210, thereby improving the connection stability between the flexible connecting member 100 and the arc-shaped splicing unit 210.

[0034] Specifically, the connecting member 410 is a bolt, the fastener 420 is a nut, and connecting holes are provided on the flexible connecting member 100 and the arc-shaped splicing unit 210. The bolts are passed through the connecting holes of the flexible connecting member 100 and the arc-shaped splicing unit 210 at the same time and are fastened by nuts.

[0035] Continue to refer to Figure 3 As shown, a plurality of first connection grooves 110 are further provided on the side of the flexible connector 100 away from the arc-shaped splicing unit 210. The plurality of first connection grooves 110 are arranged at circumferential intervals along the flexible connector 100, and the number of the first connection grooves 110 is equal to the number of the telescopic rods 320. The support assembly 300 also includes a first connection rod 330. One end of the first connection rod 330 is connected to one end of the telescopic rod 320 close to the flexible connector 100, and the other end of the first connection rod 330 is clamped in a first connection groove 110 and can rotate universally relative to the first connection groove 110.

[0036] In this embodiment, since one end of the first connecting rod 330 is connected to the end of the telescopic rod 320 close to the flexible connector 100, the other end of the first connecting rod 330 is clamped in a first connecting groove 110. In this way, the telescopic rod 320 can be connected to the flexible connector 100 through the first connecting rod 330. At the same time, since the end of the first connecting rod 330 away from the telescopic rod 320 can be universally rotated relative to the first connecting groove 110, when the telescopic rod 320 is extended or retracted, the telescopic rod 320 can be universally rotated relative to the flexible connector 100, so that the telescopic rod 320 after extension and retraction can still be connected to the flexible connector 100 and the support column 310, so that the support assembly 300 can support flexible connectors 100 of different diameters.

[0037] Reference Figure 4As shown, the support column 310 is provided with a connection groove group 311, and the connection groove group 311 includes a plurality of second connection grooves 312. The plurality of second connection grooves 312 are arranged at intervals along the circumference of the support column 310, and the number of the second connection grooves 312 is equal to the number of the telescopic rods 320. The support assembly 300 also includes a second connection rod 340, one end of the second connection rod 340 is connected to one end of the telescopic rod 320 close to the support column 310, and the other end of the second connection rod 340 is clamped in a second connection groove 312 and can rotate universally relative to the second connection groove 312.

[0038] In this embodiment, since one end of the second connecting rod 340 is connected to the end of the telescopic rod 320 close to the support column 310, and the other end of the second connecting rod 340 is clamped in a second connecting groove 312, the telescopic rod 320 can be connected to the support column 310 through the second connecting rod 340. At the same time, since the end of the second connecting rod 340 away from the telescopic rod 320 can be universally rotated relative to the second connecting groove 312, when the telescopic rod 320 is extended or retracted, the telescopic rod 320 can be universally rotated relative to the support column 310, so that the telescopic rod 320 after extension and retraction can still be connected to the flexible connector 100 and the support column 310, thereby enabling the support assembly 300 to support flexible connectors 100 of different diameters. Furthermore, since multiple first connecting grooves 110 are arranged at intervals along the circumference of the flexible connector 100, and multiple second connecting grooves 312 are arranged at intervals along the circumference of the support column 310, multiple telescopic rods 320 can be arranged at intervals along the circumference of the flexible connector 100, so that multiple telescopic rods 320 can be respectively connected to different positions of the flexible connector 100 along its circumference, thereby improving the supporting effect on the flexible connector 100.

[0039] Continue to refer to Figure 4 As shown, there are multiple connection groove groups 311 , and the multiple connection groove groups 311 are arranged at intervals along the axial direction of the support column 310 .

[0040] In this embodiment, since multiple connection groove groups 311 are arranged at axial intervals along the support column 310, the telescopic rod 320 can be connected to the second connection grooves 312 of different connection groove groups 311, so as to adjust the connection position of the telescopic rod 320 on the support column 310 according to actual working conditions, so that the telescopic rod 320 can support flexible connectors 100 of different diameters.

[0041] Continue to refer to Figure 4As shown, the support assembly 300 also includes a guide sleeve 350, which is sleeved on the support column 310 and located at the connecting groove group 311. The guide sleeve 350 is provided with a plurality of guide holes 351, each guide hole 351 is connected to a second connecting groove 312, and the end of the second connecting rod 340 away from the telescopic rod 320 is simultaneously passed through the guide hole 351 and the second connecting groove 312.

[0042] Specifically, in this embodiment, the guide sleeve 350 can move along the axial direction of the support assembly 300 so that the guide hole 351 of the guide sleeve 350 is connected to the second connection groove 312 of any one group of the connection groove groups 311 .

[0043] In this embodiment, since each guide hole 351 is connected to a second connecting groove 312, the end of the second connecting rod 340 away from the telescopic rod 320 is simultaneously passed through the guide hole 351 and the second connecting groove 312. In this way, the guide sleeve 350 can guide the second connecting rod 340 so that the second connecting rod 340 can pass through the guide hole 351 and pass through the second connecting groove 312, thereby improving the connection efficiency of the second connecting rod 340 and the support column 310, and at the same time improving the connection stability of the second connecting rod 340 and the support column 310.

[0044] Reference Figure 1 as well as Figure 3 As shown, the telescopic rod 320 has a plurality of telescopic parts 321 , the plurality of telescopic parts 321 are connected in sequence, and any two adjacent telescopic parts 321 can be telescoped with each other.

[0045] In this embodiment, since multiple telescopic parts 321 are connected in sequence and any two adjacent telescopic parts 321 can be telescoped with each other, the telescopic length of the telescopic rod 320 can be increased, so that the telescopic rod 320 can be telescoped within a larger length range, thereby enabling the telescopic rod 320 to support flexible connectors 100 of different diameters.

[0046] Specifically, the support assembly 300 further includes a plurality of limit pins, each of which is simultaneously disposed through any two adjacent telescopic portions 321 of the same telescopic rod 320 .

[0047] In this embodiment, since each limit pin is simultaneously provided on any two adjacent telescopic parts 321 of the same telescopic rod 320, when the telescopic rod 320 is extended to a preset length, the limit pin can be used to fix the adjacent telescopic parts 321 so that the telescopic rod 320 can be maintained at the preset length, thereby enabling the telescopic rod 320 to be extended to any length and fixed, thereby further improving the applicability of the telescopic rod 320.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A hole forming template, characterized in that: include: A flexible connector, wherein the flexible connector is wound in an annular shape and the annular diameter of the flexible connector is adjustable; The template body includes a plurality of arc-shaped splicing units, which are arranged around the flexible connector, and each of the arc-shaped splicing units is connected to the flexible connector. Any two adjacent arc-shaped splicing units abut against each other to form an annular template. The number of the arc-shaped splicing units is adjustable. The support assembly includes a support column and multiple telescopic rods. The support column is arranged inside the ring of the flexible connector. The multiple telescopic rods are arranged around the support column, and one end of the telescopic rod is connected to the support column, and the other end of the telescopic rod is connected to the flexible connector.

2. The hole forming template according to claim 1, characterized in that: The hole forming template further includes a fastening assembly, and each of the fastening assemblies is simultaneously connected to the flexible connector and one of the arc-shaped splicing units.

3. The hole forming template according to claim 2, characterized in that: The tail end of the flexible connector is at least partially overlapped on the head end of the flexible connector to form an overlapping section, and at least one of the fastening components is connected to the overlapping section.

4. The hole forming template according to claim 2, characterized in that: The fastening assembly includes a connecting member and a fastener. The connecting member is connected to the flexible connecting member and one of the arc-shaped splicing units at the same time. The fastener is connected to the connecting member and abuts against a side of the flexible connecting member away from the arc-shaped splicing unit.

5. The hole forming template according to claim 1, characterized in that: The flexible connector is further provided with a plurality of first connecting grooves on a side away from the arc-shaped splicing unit. The plurality of first connecting grooves are arranged at circumferential intervals along the flexible connector, and the number of the first connecting grooves is equal to the number of the telescopic rods. The support assembly also includes a first connecting rod, one end of the first connecting rod is connected to an end of the telescopic rod close to the flexible connector, and the other end of the first connecting rod is clamped in one of the first connecting grooves and is universally rotatable relative to the first connecting groove.

6. The hole forming template according to claim 5, characterized in that: The support column is provided with a connecting groove group, which includes a plurality of second connecting grooves. The plurality of second connecting grooves are arranged at intervals along the circumference of the support column, and the number of the second connecting grooves is equal to the number of the telescopic rods. The support assembly also includes a second connecting rod, one end of the second connecting rod is connected to an end of the telescopic rod close to the support column, and the other end of the second connecting rod is clamped in one of the second connecting grooves and is universally rotatable relative to the second connecting groove.

7. The hole forming template according to claim 6, characterized in that: There are a plurality of connection groove groups, and the plurality of connection groove groups are arranged at intervals along the axial direction of the support column.

8. The hole forming template according to claim 6, characterized in that: The support assembly also includes a guide sleeve, which is sleeved on the support column and located at the connecting groove group. The guide sleeve is provided with a plurality of guide holes, each of which is connected to a second connecting groove, and the end of the second connecting rod away from the telescopic rod is simultaneously passed through the guide hole and the second connecting groove.

9. The hole forming template according to claim 1, characterized in that: The telescopic rod has a plurality of telescopic parts, the plurality of telescopic parts are connected in sequence, and any two adjacent telescopic parts can be telescoped to each other.

10. The hole forming template according to claim 9, characterized in that: The support assembly further comprises a plurality of limit pins, each of which is simultaneously passed through any two adjacent telescopic parts of the same telescopic rod.

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