Pipe jacking sheet positioning device

Abstract

The utility model belongs to the technical field of pipe jacking construction, and particularly relates to a pipe jacking pipe piece positioning device which comprises a pipe piece main body and a pre-connecting mechanism, a plurality of prestress holes are reserved in the pipe piece main body, the pre-connecting mechanism comprises positioning sleeves, the positioning sleeves are pre-buried at the two ends of the prestress holes, and the pre-connecting mechanism is arranged on the pipe piece main body. The positioning sleeve is provided with a positioning slot; the positioning plug pin is partially inserted into the positioning slot; the prestressed steel pipe is pre-buried in the prestressed hole, and the two ends of the prestressed steel pipe are connected with the positioning sleeves located at the front end and the rear end of the duct piece body respectively; according to the pre-connecting device, the two duct piece bodies are positioned and connected through the pre-connecting mechanism, the accuracy and stability of the butt joint position of the duct piece bodies are ensured, follow-up construction is facilitated, and the construction quality and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pipe jacking construction technical field, specifically relates to a pipe jacking pipe piece positioning device. BACKGROUND

[0002] Pipe jacking method refers to a kind of cut-and-cover construction method when tunnel or underground pipeline crosses railway, road, river or building and various obstacles, in construction, through force transmission top iron and guide rail, pipe is pressed into soil layer by hydraulic jack supported on the back seat of foundation pit, when the first section of pipe is all pressed into soil layer, then the second section of pipe is connected behind and continues to be pressed in, so that one section of pipe is pressed in, and interface is made, and culvert is built.

[0003] In prior art, the positioning of pipe jacking pipe piece is usually determined by field survey, and laser theodolite is installed in pit for positioning center line, but only the consistency when different pipe jacking pipe pieces are spliced can be ensured, after pipe jacking pipe piece is pressed in, due to lack of pre-connection structure between different pipe jacking pipe pieces, different pipe jacking pipe pieces are prone to misalignment due to external factors and self gravity, which affects construction quality and efficiency.

[0004] To solve the above problems, a pipe jacking pipe piece positioning device is provided in the utility model. INVENTION CONTENTS

[0005] To solve the above problems in prior art, the utility model provides a pipe jacking pipe piece positioning device, which has the characteristics of convenient use and high positioning accuracy.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a pipe jacking pipe piece positioning device, including pipe piece main body, a plurality of prestressed holes are reserved on the pipe piece main body, further including pre-connection mechanism, and the pre-connection mechanism includes:

[0007] Positioning sleeve, the positioning sleeve is embedded in both ends of the prestressed hole, and the positioning sleeve has positioning slot;

[0008] Positioning bolt, the positioning bolt is partially inserted into the positioning slot;

[0009] Prestressed steel pipe, the prestressed steel pipe is embedded in the prestressed hole, and both ends of the prestressed steel pipe are connected with the positioning sleeve located at the front and rear ends of the pipe piece main body.

[0010] As a preferred technical scheme of the utility model, the diameter of the positioning sleeve is equal to that of the prestressed steel pipe, and equal to the inner diameter of the prestressed hole.

[0011] As a preferred technical scheme of the utility model, further including:

[0012] An external thread connecting rod is fixed to the end of the positioning sleeve and has an internal thread matched with the external thread connecting rod in the prestressed steel pipe.

[0013] As a preferred technical scheme of the utility model, further comprising:

[0014] A baffle is fixed to the end of the positioning sleeve away from the prestressed steel pipe.

[0015] As a preferred technical scheme of the utility model, further comprising:

[0016] A convex ring is fixed to the end of the positioning sleeve close to the prestressed steel pipe.

[0017] As a preferred technical scheme of the utility model, the positioning bolt is processed with an inclined chamfer at both ends.

[0018] As a preferred technical scheme of the utility model, further comprising:

[0019] A convex strip is fixed to the inner wall of the positioning slot in the circumferential direction at equal intervals, and the convex strip is a spiral structure.

[0020] As a preferred technical scheme of the utility model, the positioning sleeve, the external thread connecting rod, the baffle and the convex ring are integrally formed by welding.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] In the utility model, the two pipe piece bodies are positioned and connected through the pre-connection mechanism, the accuracy and stability of the pipe piece body butt joint position are ensured, the subsequent construction is facilitated, and the construction quality and efficiency are improved.

[0023] Other additional advantages and beneficial effects of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are intended to provide a further understanding of the utility model and constitute a part of the specification, together with the embodiments of the utility model, for explaining the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is an exploded structural schematic view of the pre-connection mechanism in the utility model;

[0027] Figure 3 For the utility model Figure 2 A place amplification structure schematic view in the utility model;

[0028] Figure 4 For the utility model in the positioning sleeve section structure schematic view.

[0029] In the figure: 1, the pipe piece main body;11, prestressed hole;2, pre-connection mechanism;21, positioning sleeve;211, positioning slot;212, external thread connecting rod;213, baffle;214, convex ring;215, convex strip;22, positioning bolt;221, bevel;23, prestressed steel pipe;231, internal thread. Specific implementation

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] Please refer to Figures 1-4 , the utility model provides the following technical scheme: a pipe jacking pipe piece positioning device, including pipe piece main body 1, a plurality of prestressed holes 11 are reserved on pipe piece main body 1, further including pre-connection mechanism 2, and pre-connection mechanism 2 includes: positioning sleeve 21, positioning bolt 22 and prestressed steel pipe 23.

[0032] Further, as shown by Figure 1 And Figure 2 In the embodiment, the positioning sleeve 21 is embedded in the two ends of the prestressed hole 11, and the positioning sleeve 21 has a positioning slot 211, the positioning bolt 22 is partially inserted into the positioning slot 211, and the prestressed steel pipe 23 is embedded in the prestressed hole 11, and the two ends of the prestressed steel pipe 23 are connected to the positioning sleeve 21 located at the front and rear ends of the pipe piece main body 1. After using the above scheme, first, fix the positioning sleeve 21 at both ends of the prestressed steel pipe 23, and when machining the pipe piece main body 1, make the combination of the positioning sleeve 21 and the prestressed steel pipe 23 embedded in the pipe piece main body 1. When the first pipe piece main body 1 is jacked in, partially insert the positioning bolt 22 into the positioning slot 211, and when other pipe piece main bodies 1 are jacked in, use the positioning bolt 22 and the positioning sleeve 21 for positioning, and insert the positioning bolt 22 into the positioning slot 211. The utility model positions and connects two pipe piece main bodies 1 through the pre-connection mechanism 2, ensures the accuracy and stability of the butt joint position of the pipe piece main body 1, is beneficial to subsequent construction, and improves the quality and efficiency of construction.

[0033] It should be noted that the above scheme is only the preferred embodiment of the utility model, and is not used to limit the utility model, and the pre-connection mechanism 2 is installed in a pre-buried way, and the stability is higher, and in other available embodiments, a plurality of prestressed holes 11 can be reserved on the segment body 1, and the pre-connection mechanism 2 and the segment body 1 are assembled subsequently, and the specific operation is that the prestressed steel pipe 23 is inserted into the prestressed hole 11, and then the two positioning sleeves 21 are fixed at both ends of the prestressed steel pipe 23.

[0034] Preferably, by Figure 1 and Figure 2 It is shown that in the embodiment, the diameter of the positioning sleeve 21 is equal to that of the prestressed steel pipe 23 and equal to the inner diameter of the prestressed hole 11, and after the pre-connection mechanism 2 is assembled in the prestressed hole 11, the outer wall of the positioning sleeve 21 and the prestressed steel pipe 23 abuts against the inner wall of the prestressed hole 11, thereby improving the stability.

[0035] Optionally, by Figures 1-3 It is shown that in the embodiment, the pre-connection mechanism 2 further comprises an outer threaded connecting rod 212, the outer threaded connecting rod 212 is fixed at the end of the positioning sleeve 21, and the prestressed steel pipe 23 has an inner thread 231 matched with the outer threaded connecting rod 212, and after the above scheme is adopted, in use, the positioning sleeve 21 is fixedly connected with the prestressed steel pipe 23 in a threaded screwing manner, the stability is high, and the installation is convenient and easy to construct.

[0036] Preferably, by Figure 1 , Figure 2 and Figure 4 It is shown that in the embodiment, the pre-connection mechanism 2 further comprises a baffle 213, the baffle 213 is fixed at the end of the positioning sleeve 21 away from the prestressed steel pipe 23, and after the above scheme is adopted, in use, the baffle 213 is limited from the end, and when the pre-connection mechanism 2 is assembled in the prestressed hole 11, the baffle 213 abuts against the outer wall of the segment body 1, thereby further improving the stability.

[0037] Preferably, by Figure 1 , Figure 2 and Figure 4 It is shown that in the embodiment, the pre-connection mechanism 2 further comprises a convex ring 214, the convex ring 214 is fixed at the end of the positioning sleeve 21 close to the prestressed steel pipe 23, and after the above scheme is adopted, in use, the convex ring 214 improves the engagement force between the positioning sleeve 21 and the inner wall of the prestressed hole 11, thereby further improving the stability.

[0038] Preferably, by Figure 1 and Figure 2As shown in this embodiment, chamfers 221 are machined at both ends of the positioning pin 22. After adopting the above scheme, the chamfers 221 have a guiding function, which is conducive to the positioning pin 22 being inserted into the positioning sleeve 21 to position and connect the two tube segments 1.

[0039] Preferably, by Figure 1 , Figure 2 and Figure 4 As shown, this embodiment also includes: protrusions 215. Multiple protrusions 215 are fixed at equal intervals along the circumferential direction to the inner wall of the positioning slot 211, and the protrusions 215 have a spiral structure. After adopting the above solution, due to the setting of multiple protrusions 215 and the spiral structure of the protrusions 215, after the positioning pin 22 is inserted into the positioning sleeve 21, the multiple protrusions 215 can produce a certain deformation and tightly engage with the positioning pin 22, which further improves the stability of the connection between the positioning pin 22 and the positioning sleeve 21 and makes it less prone to loosening.

[0040] It should be noted that, for the protrusion 215, during processing, multiple spiral protrusions 215 that are equally spaced along the circumferential direction can be welded and fixed to the inner wall of the positioning slot 211, or multiple spiral grooves that are equally spaced along the circumferential direction can be processed on the inner wall of the positioning slot 211 to form the protrusion 215.

[0041] Preferably, by Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the positioning sleeve 21, the external threaded connecting rod 212, the baffle 213, and the convex ring 214 are welded into an integral structure with high structural strength.

[0042] Components not described in detail in this article are existing technologies.

[0043] The working principle and usage process of this utility model: When using the positioning device of this utility model, the positioning sleeve 21 is first fixed to both ends of the prestressed steel pipe 23. When processing the segment body 1, the combination of the positioning sleeve 21 and the prestressed steel pipe 23 is pre-embedded in the segment body 1. Alternatively, multiple prestressed holes 11 can be reserved on the segment body 1. The prestressed steel pipe 23 is inserted into the prestressed holes 11, and then the two positioning sleeves 21 are fixed to both ends of the prestressed steel pipe 23 respectively, so as to realize the assembly of the pre-connection mechanism 2 and the segment body 1.

[0044] After the first segment body 1 is pushed in, the positioning pin 22 is partially inserted into the positioning slot 211. When pushing in other segment bodies 1, the positioning pin 22 and the positioning sleeve 21 are used for positioning, so that the positioning pin 22 is inserted into the positioning slot 211.

[0045] The utility model discloses a preconnection mechanism 2 is positioned and is connected to two duct piece main parts 1, ensures the accuracy and stability of duct piece main part 1 butt joint position, is favorable for the subsequent construction to carry out, has improved the quality and efficiency of construction.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the utility model and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pipe segment positioning device for pipe jacking, comprising a pipe segment body (1) on which a plurality of pre-stressing holes (11) are reserved, characterized in that, Also comprising a pre-connection mechanism (2), and the pre-connection mechanism (2) comprises: A positioning sleeve (21) embedded at both ends of the prestressed hole (11), and the positioning sleeve (21) has a positioning slot (211); A positioning plug (22) partially inserted into the positioning slot (211); A prestressed steel pipe (23) embedded in the prestressed hole (11), and both ends of the prestressed steel pipe (23) are connected to the positioning sleeves (21) at the front and rear ends of the pipe body (1).

2. A pipe segment positioning device according to claim 1, characterized in that: The diameter of the positioning sleeve (21) is equal to that of the prestressed steel pipe (23), and equal to the inner diameter of the prestressed hole (11).

3. A pipe jacking pipe segment positioning device according to claim 1, wherein: Also comprising: An external threaded connecting rod (212) fixed to the end of the positioning sleeve (21) and having an internal thread (231) matched with the external threaded connecting rod (212) in the prestressed steel pipe (23).

4. A pipe segment positioning device according to claim 3, wherein: Also comprising: A baffle (213) fixed to the end of the positioning sleeve (21) away from the prestressed steel pipe (23).

5. A pipe segment positioning device according to claim 4, wherein: Also comprising: A convex ring (214) fixed to the end of the positioning sleeve (21) close to the prestressed steel pipe (23).

6. A pipe jacking pipe segment positioning device according to claim 1, wherein: Both ends of the positioning plug (22) are processed with an inclined chamfer (221).

7. A pipe jacking pipe segment positioning device according to claim 1, wherein: Also comprising: A convex strip (215) fixed to the inner wall of the positioning slot (211) in the circumferential direction at equal intervals, and the convex strip (215) is a spiral structure.

8. A pipe segment positioning device according to claim 5, wherein: The positioning sleeve (21), the external threaded connecting rod (212), the baffle (213), and the convex ring (214) are integrally formed by welding.

Images