Embedded positioning pipe

Abstract

The utility model discloses a pre-embedded positioning pipe which comprises a sleeve, one end of the sleeve is connected with a connecting cylinder, the connecting cylinder is connected with a positioning mechanism through a plurality of connecting strips, the positioning mechanism comprises a plurality of positioning chucks, the positioning chucks are elastic, a receding groove is formed between every two adjacent connecting strips, and the positioning chucks are arranged in the receding groove. The position of the receding groove is matched with the position of a positioning clamping head, a positioning inclined face is arranged on the outer side of the positioning clamping head, and the width of the positioning inclined face inclines outwards in the direction close to the casing pipe. The anti-overflow gasket is used for connecting and sealing the positioning pipe with the mold, and concrete is effectively prevented from overflowing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tunnel engineering, particularly to the technical field of pre -buried positioning pipe. BACKGROUND

[0002] In shield construction, pre -buried positioning pipe usually needs to be installed in the corresponding position in advance according to the design requirement, such as pre -buried in shield segment structure, its main function is to provide reference for the accurate positioning of various pipelines and equipment in subsequent construction, ensure that the cable, water supply and drainage pipeline and other facilities to be connected or installed can be accurately placed in the predetermined space position, and the layout of various facilities in the whole shield is reasonable and meets the construction and use requirements.

[0003] The existing pre -buried positioning pipe is generally installed by T -bolt, and this installation mode can damage the original structure of the concrete. SUMMARY

[0004] The utility model discloses a pre -buried positioning pipe can solve the above -mentioned problems.

[0005] To realize the above -mentioned purpose, the utility model provides a pre -buried positioning pipe, including the sleeve pipe, one end of the sleeve pipe is connected with the connecting barrel, the connecting barrel is connected with the positioning mechanism through a plurality of connecting strips, the positioning mechanism includes a plurality of positioning clamps, the positioning clamp has elasticity, the position of the gap between adjacent connecting strips is matched with the positioning clamp, the outer side of the positioning clamp is equipped with the positioning slope, the width of the positioning slope is inclined outward towards the direction close to the sleeve pipe.

[0006] As preferred, one end of the sleeve pipe close to the connecting barrel is equipped with the baffle ring, and the side close to the positioning mechanism of the baffle ring is equipped with the anti -overflow gasket.

[0007] As preferred, the positioning slope is arc -shaped.

[0008] As preferred, the connecting barrel is connected with the plug, one end of the sleeve pipe close to the connecting barrel is equipped with the insertion slot, and the plug is matched and installed with the insertion slot.

[0009] As preferred, one end of the connecting strip away from the sleeve pipe is equipped with the connecting ring, one end of the positioning clamp is fixed with the connecting ring, and the other end is movably arranged on the outside of the gap.

[0010] As preferred, the connecting ring is equipped with the through groove, and the through groove is communicated with the gap.

[0011] As preferred, the outer side of the sleeve pipe is convexly equipped with a plurality of reinforcing ribs.

[0012] The utility model discloses beneficial effect: the utility model discloses the plug-in installation, convenient to install, the residue of embedded part is not left on the steel mould after stripping; the anti -overflow gasket is used for positioning pipe in mould connection seal, effectively prevent the overflow of cement; the connecting ring is convenient for positioning pipe to install the hole positioning, improves the installation efficiency.

[0013] The features and advantages of the utility model will be explained in detail by combining with the drawings through the embodiment. DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the left view of the utility model.

[0016] In the drawing: 1, sleeve pipe;2, connecting cylinder;3, connecting strip;4, positioning clamp;5, let -go slot;6, positioning inclined plane;7, baffle ring;8, anti -overflow gasket;21, plug;11, plug -in groove;32, connecting ring;31, through groove. SPECIFIC IMPLEMENTATION

[0017] Reference Figure 1 、 Figure 2 , a kind of pre -buried positioning pipe, including sleeve pipe 1, one end of the sleeve pipe 1 is connected with connecting cylinder 2, the connecting cylinder 2 is connected with positioning mechanism by several connecting strips 3, the positioning mechanism includes several positioning clamps 4, the positioning clamp 4 has elasticity, let -go slot 5 is equipped between adjacent connecting strips 3, the position of the let -go slot 5 is matched with positioning clamp 4, the outside of the positioning clamp 4 is equipped with positioning inclined plane 6, the width of the positioning inclined plane 6 is inclined outward towards the direction close to the sleeve pipe 1;The end close to the connecting cylinder 2 of the sleeve pipe 1 is equipped with baffle ring 7, the side close to the positioning mechanism of the baffle ring 7 is equipped with anti -overflow gasket 8;The positioning inclined plane 6 is arc;The connecting cylinder 2 is connected with plug 21, the end close to the connecting cylinder 2 of the sleeve pipe 1 is equipped with plug -in groove 11, the plug 21 is matched with plug -in groove 11 and is installed;The end away from the sleeve pipe 1 of the connecting strip 3 is equipped with connecting ring 32, one end of the positioning clamp 4 is fixed with connecting ring 32, and the other end is movably arranged on the outside of let -go slot 5;Through groove 31 is opened on the connecting ring 32, and the through groove 31 is communicated with let -go slot 5;The outside of the sleeve pipe 1 is protruded with several reinforcing ribs.

[0018] The working process of the utility model:

[0019] When installing, first, the connecting ring is aligned to the installation hole, then the top of the sleeve pipe is knocked by a tool, the positioning clamp is inserted into the installation hole, the positioning clamp is stressed and shrunk into the let -go slot, after installation is completed, the positioning clamp is re-expanded outward under the action of elasticity, the installation hole is limited, and the anti -overflow gasket presses the installation surface.

[0020] The above examples are illustrative of the present application and are not limiting. Any simple modifications of the present application are considered to be within the scope of the present application.

Claims

1. A pre-embedded positioning tube, characterized by: The utility model provides a sleeve (1), one end of sleeve (1) is connected with connecting barrel (2), connecting barrel (2) is connected with positioning mechanism through a plurality of connecting strips (3), positioning mechanism includes a plurality of positioning clamping heads (4), positioning clamping head (4) has elasticity, the position of the clearance slot (5) between adjacent connecting strips (3) is matched with positioning clamping head (4), the outside of positioning clamping head (4) is equipped with positioning inclined plane (6), and the width of positioning inclined plane (6) is inclined outward towards the direction close to sleeve (1).

2. The pre-embedded positioning tube of claim 1, wherein: The end of the sleeve (1) close to the connecting barrel (2) is provided with a baffle ring (7), and the side of the baffle ring (7) close to the positioning mechanism is provided with a spill-proof gasket (8).

3. The pre-embedded positioning tube of claim 1, wherein: The positioning inclined plane (6) is arc-shaped.

4. The pre-embedded positioning tube of claim 1, wherein: The connecting barrel (2) is connected with a plug (21), and the end of the sleeve (1) close to the connecting barrel (2) is provided with a plug slot (11), and the plug (21) is matched and installed with the plug slot (11).

5. The pre-embedded positioning tube of claim 1, wherein: The end of the connecting strip (3) away from the sleeve (1) is provided with a connecting ring (32), one end of the positioning clamping head (4) is fixed with the connecting ring (32), and the other end is movably arranged outside the clearance slot (5).

6. The pre-embedded positioning tube of claim 5, wherein: The connecting ring (32) is provided with a through groove (31), and the through groove (31) is communicated with the clearance slot (5).

7. The pre-embedded positioning tube of claim 1, wherein: The outside of the sleeve (1) is provided with a plurality of reinforcing ribs.

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