Trenchless swivel head protection mechanism

Abstract

The utility model relates to the field of trenchless pipelines, in particular to a trenchless swivel head protection mechanism. Comprising a tractor welded to the end of a to-be-dragged pipeline and connected with a rotary head; one end of the supporting frame is detachably connected with the tractor through a bolt, and the other end of the supporting frame is open; the protective cover is composed of two semicircular cover bodies, and the two ends of the cover bodies are detachably connected with the supporting frame through bolts. The protective mechanism is ingenious in design, simple in structure and easy to disassemble and assemble, the use efficiency is greatly improved, the semicircular cover bodies are adopted, channel collapse in the traction process is avoided, and the safety of the traction channel is improved. And the rotary head can be prevented from being impacted by gravels and cobblestone stratums, and damage to the rotary head is avoided.

Description

Technical Field

[0001] The utility model relates to the field of trenchless pipelines, in particular to a trenchless rotary head protection mechanism. Background Art

[0002] Trenchless construction refers to the use of various rock and soil drilling equipment and technical means to lay, replace and repair various underground pipelines in a very small part of the ground surface through guided and directional drilling, etc. (generally referring to small-area excavation at the entrance and exit). It will not hinder traffic, will not damage green spaces and vegetation, and will not affect the normal life and work order of shops, hospitals, schools and residents. It solves the interference of traditional excavation construction on residents' lives and the damage and adverse effects on traffic, the environment and the foundations of surrounding buildings.

[0003] In trenchless pipeline operations, since the rotary head is thinner than the diameter of the pipeline, it will collapse during use, especially when pulling in gravel and cobblestone formations. If too much gravel and impurities accumulate, it will increase resistance and cause the project to fail. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a trenchless rotary head protection mechanism to solve the above problems.

[0005] The embodiment of the present application provides a trenchless rotary head protection mechanism, comprising:

[0006] A trenchless rotary head protection mechanism, comprising:

[0007] A tractor, which is welded to the end of the pipe to be pulled and connected to the rotary head;

[0008] A support frame, one end of which is detachably connected to the tractor via bolts and the other end of which is open;

[0009] The protective cover is made of two semicircular cover bodies, and both ends of the cover bodies are detachably connected to the support frame through bolts.

[0010] Preferably, the tractor includes a traction head, one end of which is flat and is used for being welded to the traction pipe, and the other end of which is fixedly connected to the connecting head.

[0011] Preferably, the support frame includes two symmetrically arranged support rings, the support rings are connected by two keels, and each support ring is symmetrically provided with a bolt hole corresponding to the threaded hole.

[0012] Preferably, a second bolt hole is provided on the cover body, and the second bolt hole corresponds to the threaded hole.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0014] In the utility model, the protection mechanism is cleverly designed, simple in structure, easy to disassemble and install, and greatly improves the efficiency of use. By adopting a semicircular cover, it not only avoids channel collapse during traction, but also avoids the slewing head from being hit by gravel and cobblestone formations, causing damage and causing damage to the slewing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the trenchless rotary head protection mechanism in this application;

[0016] Figure 2 This is a schematic diagram of the explosion structure of the trenchless rotary head protection mechanism in this application;

[0017] Figure 3 This is a schematic diagram of the internal structure of the trenchless rotary head protection mechanism in this application.

[0018] In the figure: 10-support frame, 11-bolt hole 1, 12-keel, 13-support ring, 20-tractor, 21-threaded hole, 22-connector, 23-welding block, 30-protective cover, 31-bolt hole 2, 32-cover body, 40-connecting bolt. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] See also Figure 1-3 As shown in , the utility model provides a technical solution:

[0023] A trenchless rotary head protection mechanism, comprising:

[0024] The tractor 20 is welded to the end of the pipe to be pulled and connected to the rotary head;

[0025] The support frame 10 has one end detachably connected to the tractor 20 via a bolt 40 and the other end is open;

[0026] The protective cover 30 is made of two semicircular cover bodies 32 , and both ends of the cover bodies 32 are detachably connected to the support frame 10 via bolts 40 .

[0027] In this way, the protective cover 30 is provided to protect the slewing head, avoid channel collapse during traction, and prevent the slewing head from being hit by gravel and cobblestone formations, causing damage to the slewing head. At the same time, by setting the cover body 32 into a semicircle, the disassembly of the cover body 32 is facilitated, and then after use, the disassembly of the slewing head is facilitated, thereby improving the use efficiency.

[0028] Furthermore, the traction device 20 includes a traction head 23, one end of which is flat and is used to be welded to the traction pipe, and the other end of the traction head 23 is fixedly connected to the connecting head 22. The outer surface of the traction head 23 is symmetrically provided with threaded holes 21 for connecting to the support frame 10.

[0029] Furthermore, the support frame 10 includes two symmetrically arranged support rings 13, which are connected by two keels 12, and the support rings 13 are symmetrically provided with bolt holes 11 corresponding to the threaded holes 21. In this way, the connection between the support ring 13 and the traction head 23 is achieved through the cooperation between the set bolt holes 11 and the threaded holes 21, thereby further achieving the fixation of the support frame 10.

[0030] Furthermore, a second bolt hole 31 is provided on the cover body 32, and the second bolt hole 31 corresponds to the threaded hole 21. In this way, through the cooperation of the set bolt hole 11, the second bolt hole 31 and the threaded hole 21, the overall splicing and disassembly of the protection mechanism can be achieved, greatly improving the use efficiency.

[0031] Working Principle: This trenchless slewing head protection mechanism is welded to the tractor 20, connecting the slewing head to the tractor. A support frame 10 is removably connected to the tractor 20 via bolts 40, providing initial support for the slewing head. Subsequently, two semicircular covers 32 are removably connected to the other end of the support frame 10 via bolts 40, completely covering and protecting the slewing head. During traction, the protective covers 30 effectively prevent channel collapse and block impacts with gravel and cobblestone formations, preventing damage.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. A person skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A trenchless rotary head protection mechanism, characterized by: include: A tractor (20) is welded to the end of the pipe to be pulled and connected to the rotary head; A support frame (10), one end of which is detachably connected to the tractor (20) via a bolt (40), and the other end of which is open; The protective cover (30) is made of two semicircular cover bodies (32), and the two ends of the cover bodies (32) are detachably connected to the support frame (10) through bolts (40).

2. The trenchless rotary head protection mechanism according to claim 1, characterized in that: The tractor (20) comprises a traction head (23), one end of which is a plane and is used for being welded to the traction pipe, and the other end of which is fixedly connected to the connecting head (22).

3. The trenchless rotary head protection mechanism according to claim 1, characterized in that: The support frame (10) includes two symmetrically arranged support rings (13), the support rings (13) are connected through two keels (12), and the support rings (13) are symmetrically provided with bolt holes (11) corresponding to the threaded holes (21).

4. The trenchless rotary head protection mechanism according to claim 1, characterized in that: The cover body (32) is provided with a second bolt hole (31), and the second bolt hole (31) corresponds to the threaded hole (21).

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