A machine head suitable for renewing reinforced concrete pipelines by fragmentation method
A technology of reinforced concrete and fragmentation method, which is applied in the sewer system, pipeline laying and maintenance, pipes/pipe joints/pipe fittings, etc. It can solve the problems of surrounding soil disturbance and the difficulty of updating reinforced concrete pipes, so as to improve work efficiency. Effect
Active Publication Date: 2021-02-26
CHINA RAILWAY 18TH BUREAU GRP CO LTD +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide a machine head suitable for renewing reinforced concrete pipelines by fragmentation method, so as to solve the problems that reinforced concrete pipelines are not easy to renew and easily cause disturbance of surrounding soil
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[0020] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on the technical solution, and provides detailed implementation and specific operation process, but the protection scope of the present invention is not limited to the present invention. Example.
[0021] figure 1 It is a structural schematic diagram of an embodiment of a machine head suitable for renewing reinforced concrete pipelines by the fragmentation method of the present invention, figure 2 It is a left view structural schematic diagram of an embodiment of a machine head suitable for renewing reinforced concrete pipelines by fragmentation method of the present invention. As shown in the figure, a machine head suitable for renewing reinforced concrete pipelines by fragmentation method includes a shell 1, and the outer diameter of the shell 1 is not larger than that of the old pipeline. The front end of the casing ...
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The invention discloses a machine head suitable for renewing reinforced concrete pipelines by fragmentation, and belongs to the technical field of pipeline renewing devices. The machine head includes a shell, and several air picks are evenly arranged on the front end of the shell, and a drill bit is fixed at the front end of the air picks. The housing is provided with a pulling head in the middle of one end of the pick. A storage chamber is arranged inside the casing, and a collecting hopper is arranged at the front end of the storage chamber. The rear end of the storage chamber is provided with a cutting chamber, and the storage chamber and the cutting chamber are connected by a transition section, which is a tapered structure with a large opening close to the end of the storage chamber. A cutting machine for cutting steel bars is arranged at the front end of the cutting chamber. The bottom of the storage chamber is provided with a discharge port 1, the bottom of the cutting chamber is provided with a discharge port 2, and the discharge port 2 is located at the rear of the cutting machine. The invention adopts the above-mentioned machine head suitable for renewing reinforced concrete pipelines by fragmentation method, solves the problems that reinforced concrete pipelines are not easy to renew and easily causes surrounding soil disturbance, and has the advantages of simple structure and high working efficiency.
Description
technical field [0001] The invention belongs to the technical field of renewing devices for reinforced concrete pipelines, and in particular relates to a machine head suitable for renewing reinforced concrete pipelines by fragmentation. Background technique [0002] At present, the commonly used methods in the pipeline renewal technology of fragmentation method are pneumatic fragmentation pipe method and static tension fragmentation pipe method. In the body, drag the new pipeline in to achieve the purpose of updating the pipeline. However, these methods have a common disadvantage, that is, they cannot update reinforced concrete pipes, because they cannot handle the steel bars in reinforced concrete pipes, so the scope of application of these methods is relatively small. Moreover, certain soil disturbances will be generated during the construction process. Even if a pipe of equal diameter is replaced, the soil layer will move because the diameter of the bursting pipe is slig...
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IPC IPC(8): E03F3/06B02C21/00B09B3/00F16L1/028
CPCB02C21/00B09B3/00E03F3/06E03F2003/065F16L1/028
Inventor 李景黄玉萍王新妍马保松闫雪峰洪涛范博毅
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD