An adjustable circular hole pre-embedded device in secondary structure construction

Abstract

The utility model discloses an adjustable circular hole reserved and embedded device in secondary structure construction, comprising a cross rod, four ends of the cross rod are provided with slots, extension rods are inserted into the slots, one end of the extension rod is fixed in the slot by a top screw, a telescopic component is connected to one end of the extension rod placed outside, and magnets with magnetic repulsion are respectively fixed on both ends of the telescopic component. The utility model has a simple structure, and can change the diameter of the circle formed by controlling the extension length of the extension rod and the extension length of the telescopic component, which greatly improves the applicability and reduces the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of structural engineering, in particular to an adjustable circular hole pre-embedded device in secondary structure construction. Background Art

[0002] During the later renovation of the house, since there is no reserved pipeline on the wall, it is very troublesome to forcibly dig a pipeline groove on the wall and then bury the pipeline in the wall. Therefore, when the secondary structure is carried out nowadays, circular holes are reserved on the brick wall. However, each time a circular hole is reserved, the diameter of the reserved circular hole will be different due to different reasons. This requires molds with multiple diameters, which increases the cost and is very inconvenient to use. Utility Model Content

[0003] The utility model aims to provide an adjustable pre-embedded device for a circular opening in secondary structure construction to solve the above-mentioned problem.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a device for pre-buried circular openings in the construction of an adjustable secondary structure, comprising a cross rod, wherein slots are provided at four ends of the cross rod, extension rods are inserted into the slots, one end of the extension rod is fixed in the slot by a top screw, a telescopic assembly is connected to an end of the extension rod placed in the outside, and four telescopic assemblies are connected to form a circle, wherein the telescopic assembly comprises a first telescopic rod, a second telescopic rod and a third telescopic rod in an arc shape, an arc-shaped sliding hole is provided at the ends of the second telescopic rod and the third telescopic rod, an end of the first telescopic rod is inserted into the arc-shaped sliding hole provided on the second telescopic rod, an end of the second telescopic rod is inserted into the arc-shaped sliding hole provided on the third telescopic rod, baffles are connected to the ends of the first telescopic rod and the second telescopic rod placed in the arc-shaped sliding hole, and magnets with magnetic repulsion are respectively fixed to the end of the first telescopic rod placed in the outside and the end of the third telescopic rod connected to the extension rod.

[0006] Furthermore, the cross rod and the extension rod are both provided with scale lines.

[0007] Furthermore, a top groove is formed on the extension rod, and the bottom of the top screw is pressed into the top groove.

[0008] Compared with the prior art, the beneficial technical effects of the utility model are:

[0009] The utility model has a simple structure and can change the diameter of the circle by controlling the extension length of the extension rod and the extension length of the telescopic assembly, thereby greatly improving applicability and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model will be further described below in conjunction with the accompanying drawings.

[0011] Figure 1 This is the main view of the embedded device reserved for the circular opening in the adjustable secondary structure construction of the utility model;

[0012] Figure 2 This is a schematic diagram of the use of the pre-embedded device for the circular opening in the construction of the adjustable secondary structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the telescopic component structure;

[0014] Explanation of the reference numerals: 1. cross rod; 2. extension rod; 3. top screw; 4. first telescopic rod; 5. second telescopic rod; 6. third telescopic rod; 7. arc-shaped sliding hole; 8. baffle; 9. magnet; 10. scale line; 11. brick wall; 12. concrete lintel. DETAILED DESCRIPTION

[0015] like Figure 1-3 As shown, a circular hole pre-embedded device for adjustable secondary structure construction includes a cross bar 1, and slots are provided at the four ends of the cross bar 1. Extension rods 2 are inserted into the slots. One end of the extension rod 2 is fixed in the slot by a top screw 3. A top groove is provided on the extension rod 2, and the bottom of the top screw 3 is pressed in the top groove. Scale lines 10 are provided on the cross bar 1 and the extension rod 2, and the appropriate extension length is selected by the scale lines 10.

[0016] The end of the extension rod 2 placed in the outside is connected with a telescopic component, and four of the telescopic components are connected to form a circle. The telescopic component includes an arc-shaped first telescopic rod 4, a second telescopic rod 5 and a third telescopic rod 6. The ends of the second telescopic rod 5 and the third telescopic rod 6 are both provided with arc-shaped sliding holes 7. The end of the first telescopic rod 4 is inserted into the arc-shaped sliding hole 7 opened on the second telescopic rod 5, and the end of the second telescopic rod 5 is inserted into the arc-shaped sliding hole 7 opened on the third telescopic rod 6. The ends of the first telescopic rod 4 and the second telescopic rod 5 placed in the arc-shaped sliding hole 7 are both connected with baffles 8. Magnets 9 with magnetic repulsion are respectively fixed to the end of the first telescopic rod 4 placed in the outside and the end of the third telescopic rod 6 connected to the extension rod 2.

[0017] The action process of the utility model is as follows:

[0018] When the brick wall 11 is built to a position where a circular hole needs to be reserved, the device is adjusted according to the size of the hole to be reserved, the four top screws 3 are loosened, and then the length of the extension rod 2 is adjusted according to the required diameter. After adjustment, the top screws 3 are tightened to fix it, and then the first telescopic rod 4 is pulled until the magnet 9 at the end of the first telescopic rod 4 is attracted and connected with the magnet 9 at the end of the adjacent third telescopic rod 6, and then the other three first telescopic rods 4 are pulled out one by one, so that the four telescopic components form a circle.

[0019] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An adjustable circular hole pre-embedded device in secondary structure construction, characterized in that: The invention comprises a cross rod (1), wherein four ends of the cross rod (1) are provided with slots, wherein extension rods (2) are inserted into the slots, wherein one end of the extension rod (2) is fixed in the slots by means of a top screw (3), wherein one end of the extension rod (2) is placed outside and connected with a telescopic assembly, wherein the four telescopic assemblies are connected to form a circle, wherein the telescopic assembly comprises a first telescopic rod (4), a second telescopic rod (5) and a third telescopic rod (6) in an arc shape, wherein the ends of the second telescopic rod (5) and the third telescopic rod (6) are provided with arc-shaped sliding holes (7), the end of the first telescopic rod (4) is inserted into the arc-shaped sliding hole (7) opened on the second telescopic rod (5), and the end of the second telescopic rod (5) is inserted into the arc-shaped sliding hole (7) opened on the third telescopic rod (6), the ends of the first telescopic rod (4) and the second telescopic rod (5) placed in the arc-shaped sliding hole (7) are both connected with baffles (8), and magnets (9) with magnetic repulsion are respectively fixed on the end of the first telescopic rod (4) placed outside and the end of the third telescopic rod (6) connected to the extension rod (2).

2. The circular hole pre-embedded device for adjustable secondary structure construction according to claim 1 is characterized in that: The cross rod (1) and the extension rod (2) are both provided with scale marks (10).

3. The circular hole pre-embedded device for adjustable secondary structure construction according to claim 1 is characterized by: The extension rod (2) is provided with a top groove, and the bottom of the top screw (3) is pressed into the top groove.

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