Tube jointing structure with locking bar

Abstract

The invention relates to a pipe connection structure with locking strips. Two pipes are sealed by a connecting sleeve and a sealing ring. The outer circumference of the pipe to be connected is grooved, and the inner circumference of the connecting sleeve is provided with an inner ring groove corresponding to it. The outer periphery is provided with a lock hole communicating with the groove of the inner ring, and there is a lock bar between the groove of the inner ring and the groove of the outer ring. The connection structure realizes the mutual positioning between the two pipes through the cooperation of the lock hole, the lock bar, the outer ring groove and the inner ring groove, so that the two pipes can be connected firmly, the shape of the connecting sleeve is greatly reduced, and the shape is simple and beautiful, and the consumables are less. There is no need for bolts and screw holes, which greatly reduces the cost. The disassembly and assembly are simple and fast. You only need to insert or pull out the locking bar to disassemble and assemble without any tools. The structure is very simple, suitable for various pipe connections, and is not limited by the installation environment , long service life, can withstand any high pressure.

Description

Technical field: [0001] The invention relates to a pipe connection structure, in particular to a pipe connection structure which can be stably connected by locking strips. Background technique: [0002] In daily life or in the production process, the pipes used for water transportation and oil transportation need certain connecting parts to connect and seal them. At present, there are many kinds of pipes such as plastic, metal, aluminum-plastic composite pipes or steel-plastic composite pipes. These connection structures have certain disadvantages: for example, when glue is used to bond plastic pipes and aluminum-plastic steel-plastic composite pipes, they are easy to age, have poor firmness, and poor sealing. Use expensive special equipment, high cost, inconvenient installation and operation, difficult to control the hot melt temperature, long installation and connection time, easy deformation and leakage of the connection port, cannot be disassembled after connection, and ...

AI Technical Summary

Problems solved by technology

[0002] In daily life or in the production process, the pipes used for water transportation and oil transportation need certain connecting parts to connect and seal them. At present, there are many kinds of pipes such as plastic, metal, aluminum-plastic composite pipes or steel-plastic composite pipes. These connection structures have certain disadvantages: for example, when glue is used to bond plastic pipes and aluminum-plastic steel-plastic composite pipes, they are easy to age, have poor firmness, and poor sealing. Use expensive special equipment, high cost, inconvenient installation and operation, difficult to control the hot melt temperature, long installation and connection time, easy deformation and leakage of the connection port, cannot be disassembled after connection, and the sealing is poor, and this method cannot be used in special environments ; For small-diameter metal pipes, it is easy to rust and leak when connected by thread or welding, and it is inconvenient to disassemble and assemble. Special disassembly and assembly equipment is required, and the cost is high. It is not beautiful, and it is easy to cause poor sealing when the installation is not careful or the precision is not enough.

The above connection structure still has certain limitations, that is, pipes with different calibers, different materials, and different pipe pressures need to use different connection structures. The three items ZL01215204.8, ZL01215205.6, and ZL01277056.6 disclosed by the Chinese Patent Office provide solutions. This limited pipe connection structure still has disadvantages such as complex overall structure, large and unattractive appearance, inconvenient disassembly and assembly, insufficient connection and sealing reliability, complex and large stop structure between pipes, etc.

In addition, the ZL03247246.3 patent disclosed by the China Patent Office realizes the self-locking sealing connection of the pipe through the connecting sleeve and the sealing ring, but there are still some disadvantages: because the connecting sleeve must be stopped with bolts on the pipe, otherwise the pipe It is easy to disengage when there is an external force between them. Therefore, both the connecting sleeve and the pipe must have screw holes, which increases the processing cost and material cost. At the same time, it is time-consuming and inconvenient to install and disassemble.

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