Manual pipe jacking tool

Abstract

The manual pipe jacking tool comprises a jacking pipe and a chambering head detachably arranged on the jacking pipe, the chambering head comprises a connecting pipe head, a chambering ring and connecting ribs, the connecting pipe head and the chambering ring are coaxially arranged at intervals, the connecting pipe head and the chambering ring are connected through the connecting ribs, and the connecting ribs are evenly arranged at intervals. Cutting edges are arranged on the end surfaces of the reaming rings close to one side of the connecting pipe head. According to the utility model, the reaming head is designed, and the jacking pipe is combined with the reaming head, so that during construction, an underground soil layer can be softened with water, the jacking pipe is arranged at the position of a to-be-perforated structure in a penetrating manner, then the reaming head on the jacking pipe acts towards the interior of a hole, the cutting edge on the reaming ring acts on the surface of the soil layer on the outer edge of the hole to cut, and the soil layer is concentrated towards the middle; in the using process, manual operation can sense the acting force, when the reverse acting force is large, excavation can be conducted after confirmation is conducted, damage to a surrounding pipe network is avoided, and the construction efficiency can be improved due to the fact that the cutting edge can improve the construction efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, and more specifically, to a manual pipe jacking tool. Background Art

[0002] Pipe jacking is a trenchless construction technology that can complete the laying of pipelines without excavating the ground. It can cross roads, railways, rivers, lakes, buildings, and various underground pipelines, and can be used for the construction of water supply and drainage, gas, electricity, communications and other pipelines. The principle of pipe jacking is to use the jacking force generated by the jacking equipment to overcome the friction between the pipe section and the surrounding soil, push the pipe section into the soil layer, and transport the soil away. After one pipe section is successfully pushed into the soil layer, the second pipe section is pushed in to complete the laying of the entire pipeline.

[0003] The current jacking pipe construction tools generally use electric jacking pipes, such as a jacking pipe construction device provided in Chinese patent application CN202010653691.0, in which the motor of the device drives the shield cutter disc and the connecting block to rotate synchronously. When the connecting block rotates, the cam part squeezes the piston plate, and the piston plate is reset under the elastic force of the spring, thereby realizing the reciprocating motion of the piston plate, that is, continuously pumping and squeezing water. The water is transported to the nozzle through the first water pipe to spray and moisten the soil layer contacted by the shield cutter disc, and at the same time plays the role of flushing the shield cutter disc, thereby improving the excavation efficiency. At the same time, the piston plate and the shield cutter disc work synchronously. When the shield cutter disc is working, the piston plate pumps and supplies water. When the shield cutter disc stops working, the piston plate also stops supplying water, thereby saving water resources and avoiding too much water injection to affect the internal soil structure and cause ground collapse, thereby ensuring the quality and safety of construction.

[0004] In the above structure, the driving force of the jacking pipe is still driven by an electric motor. This driving method is relatively efficient. However, since there is no detection structure at the front end, when there are abundant underground pipelines, this jacking pipe construction structure can easily lead to other pipelines being drilled through during the drilling process, resulting in construction accidents. If the above drive is cancelled and manual construction is adopted, due to the design of the front end structure of the jacking pipe, the construction force of the structure at the top of the jacking pipe on the soil layer is relatively small, which increases the difficulty of construction on the one hand and greatly reduces the construction efficiency on the other hand.

[0005] Therefore, it is necessary to propose an artificial pipe jacking tool to solve the above-mentioned problems. Utility Model Content

[0006] The utility model provides a manual pipe jacking tool to solve the problem that the existing pipe jacking structure is easy to cause construction accidents for ground construction with abundant pipe networks, while the use of manual driving will lead to greater construction difficulty and reduced efficiency.

[0007] According to one aspect of the utility model, a manual pipe jacking tool is provided, comprising a pipe jacking and a reaming head detachably mounted on the pipe jacking, the reaming head comprising a connecting pipe head, a reaming ring and connecting ribs, the connecting pipe head and the reaming ring being coaxially arranged at intervals, the connecting pipe head and the reaming ring being connected via the connecting ribs, the connecting ribs being evenly spaced, the reaming ring being provided with a cutting edge on one end face close to the connecting pipe head, and the connecting pipe head being connected to the pipe jacking.

[0008] Preferably, based on the above solution, the connecting pipe head is provided with threads, and the jacking pipe is connected to the connecting pipe head via the threads.

[0009] Preferably, based on the above solution, a mesh-shaped cutting strip is provided on the surface of the connecting rib close to the connecting pipe head.

[0010] Preferably, based on the above solution, the cutting strips are multiple and arranged at intervals, and the cutting strips are vertically arranged and connected to the connecting ribs.

[0011] Preferably, based on the above solution, a cover plate is provided on the outer edge surface of the connecting rib.

[0012] The utility model discloses an artificial pipe jacking tool. By designing a reaming head and utilizing the combination of the jacking pipe and the reaming head, water can be used to soften the underground soil layer during construction, and the jacking pipe is inserted into the structure to be drilled. Then, the reaming head on the jacking pipe acts on the inside of the hole, and the cutting edge on the reaming ring acts on the surface of the soil layer at the outer edge of the hole to cut and concentrate the cutting towards the middle, so as to realize rapid excavation. During use, manual operation can sense the force, and when a large reverse force is encountered, excavation can be performed after confirmation to avoid damaging the surrounding pipe network. Moreover, the cutting edge can improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0014] Figure 1 It is a structural schematic diagram of the manual pipe jacking tool of the utility model;

[0015] Figure 2 It is a partial enlarged view of the manual pipe jacking tool of the utility model;

[0016] Description of Figure Numbers:

[0017] Top pipe 1, reaming head 2, connecting pipe head 21, reaming ring 22, connecting rib 23, cutting edge 24, cutting strip 25. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0020] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0021] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0022] In the embodiments shown in the drawings, the directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the positions of the components changes, the directions also change accordingly.

[0023] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0025] See also Figure 1 , and combined with Figure 2As shown, an artificial pipe jacking tool of the utility model comprises a pipe jacking 1 and a reaming head 2 detachably mounted on the pipe jacking 1, wherein the reaming head 2 comprises a connecting pipe head 21, a reaming ring 22 and a connecting rib 23, the connecting pipe head 21 and the reaming ring 22 are coaxially arranged at intervals, the connecting pipe head 21 and the reaming ring 22 are connected by the connecting ribs 23, the connecting ribs 23 are evenly spaced, the reaming ring 22 is provided with a cutting edge 24 on one end face of the connecting pipe head 21 close to the connecting pipe head 21, and the connecting pipe head 21 is connected to the pipe jacking 1.

[0026] When in use, first use the detector to select a suitable pipe insertion position at the construction site, then pre-drill a process hole (the hole diameter is small and only allows the jacking pipe 1 to pass through), then, after artificial infiltration, the jacking pipe 1 is inserted into the process hole, and the reaming head 2 at its head is installed on the jacking pipe 1, and a force is manually applied to the jacking pipe 1 to make it move away from the reaming head 2. In this way, the reaming head 2 will act on the inner circular surface of the process hole, and the cutting edge 24 on the reaming ring 22 can be used to cut the soil on the inner circular surface of the process hole to increase its reaming speed.

[0027] Preferably, the connecting pipe head 21 of the utility model is provided with threads, and the jacking pipe 1 is connected to the connecting pipe head 21 via the threads.

[0028] Furthermore, in order to improve the strength of the reaming head 2 and its cutting efficiency, the utility model also provides a mesh cutting strip 25 on the surface of the connecting rib 23 close to the connecting pipe head 21. The cutting strips 25 are multiple and arranged at intervals. The cutting strips 25 are vertically arranged and connected to the connecting ribs 23, which not only enhances the strength between the connecting ribs 23, but also further improves its cutting efficiency due to the action of the cutting strips 25. The funnel-shaped structure formed by the cutting strips 25 can achieve rapid concentration of the degree of expansion.

[0029] As a preferred embodiment of the present invention, a cover plate is provided on the outer edge surface of the connecting rib 23 of the present invention.

[0030] The utility model discloses an artificial pipe jacking tool. By designing a reaming head 2 and utilizing a jacking pipe 1 in combination with the reaming head 2, water can be used to soften the underground soil layer during construction, and the jacking pipe 1 is inserted into the structure to be drilled. Then, the reaming head 2 on the jacking pipe 1 acts on the hole, and the cutting edge 24 on the reaming ring 22 acts on the surface of the soil layer at the outer edge of the hole to cut and concentrate it toward the middle, so as to realize rapid excavation. During use, manual operation can sense the force. When encountering a large reverse force, it can be confirmed before excavation to avoid damaging the surrounding pipe network. Moreover, the cutting edge 24 can improve the construction efficiency.

[0031] Finally, the method of this application is only a preferred implementation scheme and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A manual pipe jacking tool, characterized in that: It comprises a jacking pipe and a reaming head detachably mounted on the jacking pipe, the reaming head comprising a connecting pipe head, a reaming ring and connecting ribs, the connecting pipe head and the reaming ring are coaxially arranged at intervals, the connecting pipe head and the reaming ring are connected via the connecting ribs, the connecting ribs are evenly arranged at intervals, the reaming ring is provided with a cutting edge on one end face close to the connecting pipe head, and the connecting pipe head is connected to the jacking pipe.

2. A manual pipe jacking tool as claimed in claim 1, characterized in that: The connecting pipe head is provided with threads, and the jacking pipe is connected to the connecting pipe head through the threads.

3. A manual pipe jacking tool as claimed in claim 1, characterized in that: A mesh-shaped cutting strip is arranged on the surface of one side of the connecting rib close to the connecting pipe head.

4. A manual pipe jacking tool as claimed in claim 3, characterized in that: The cutting strips are multiple and arranged at intervals, and the cutting strips are vertically arranged and connected to the connecting ribs.

5. The manual pipe jacking tool according to claim 1, characterized in that: A cover plate is arranged on the outer edge surface of the connecting rib.

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