Direct insertion type quickly-connecting pipe fitting

Abstract

The invention discloses a direct insertion type quickly-connecting pipe fitting. The direct insertion type quickly-connecting pipe fitting comprises a pipe fitting body, a core body, a fastening sleeve and an internal tooth washer, wherein the core body is connected with the first end of the pipe fitting body, the core body is sleeved with the fastening sleeve, one end of the fastening sleeve is detachably connected with the first end of the pipe fitting body, and the other end of the fastening sleeve is a gradual contractile opening. The internal tooth washer comprises a washer body and a plurality of elastic teeth connected with the washer body. The teeth incline towards the second end of the pipe fitting body, and the washer body is installed between the fastening sleeve and the pipe fitting body. According to the direct insertion type quickly-connecting pipe fitting, damage to the internal tooth washer can be avoided in the installing process, so that selectivity of materials of the internal tooth washer is increased, the internal tooth washer can be made of materials with high toughness, the anti-disengaging effect can be improved, cost of the internal tooth washer is reduced, cost of the direct insertion type quickly-connecting pipe fitting is correspondingly reduced, and meanwhile the direct insertion type quickly-connecting pipe fitting is good in sealing performance and has good market prospects.

Description

technical field [0001] The invention relates to the technical field of pipe materials, in particular to an in-line quick-connect pipe fitting. Background technique [0002] Existing pipe fitting connection methods mainly include ferrule type connection, compression type connection, etc. The above connection methods have the following disadvantages: installation is labor-intensive and time-consuming, special tools are required for installation, pipe fittings are difficult to replace after pipeline leakage, and maintenance costs are high . In order to improve the working efficiency of pipe fittings connecting pipes, some people have proposed to add internal tooth washers in the pipe fittings, extend the pipes into the pipe fittings, and hold the pipes with the divergent teeth of the internal tooth washers installed on the pipe fittings. In this way, the pipes can be connected. Effectively prevent the pipes from falling off, so as to connect the pipes. If it is necessary to t...

AI Technical Summary

Problems solved by technology

[0002] Existing pipe fitting connection methods mainly include ferrule type connection, compression type connection, etc. The above connection methods have the following disadvantages: installation is labor-intensive and time-consuming, special tools are required for installation, pipe fittings are difficult to replace after pipeline leakage, and maintenance costs are high

[0005] 1. At present, the internal tooth washer is usually snapped into the groove provided in the pipe fitting to fix the internal tooth washer in the pipe fitting. During the installation process, the internal tooth washer is easy to be damaged, which is inconvenient to install and affects the quality of the internal tooth washer. High requirements are put forward, the cost of internal tooth gaskets increases, and the cost of pipe fittings increases accordingly

The internal tooth washer is easy to be damaged after long-term use, and it is extremely inconvenient to replace the internal tooth washer due to the limitation of the pipe fitting structure. It is difficult to meet the customer's requirements for high-quality and low-cost quick-connect pipe fittings

[0006] 2. The existing in-line quick-connect pipe fittings generally adopt the external sealing method of the pipe, that is, after the pipe is inserted into the quick-connect pipe fitting, a gasket is provided between the outer surface of the pipe and the pipe fitting to prevent leakage, and the pipe and pipe fittings are assembled and disassembled many times. Or in the process of using quick-connect pipe fittings, the outer surface of the pipe is occluded by the teeth of the inner tooth washer, and the outer surface of the pipe will be scratched to varying degrees, which reduces the sealing between the outer surface of the pipe and the pipe fitting, and the service life of the pipe Reduced, customers will pay for product reinstallation costs and other related compensation losses, and it is difficult to meet customers' needs for long life cycles of quick-connect pipe fittings

[0007] 3. In the installation process of the existing in-line quick-connect pipe fittings, it is often necessary to measure and mark the insertion length on the outer surface of the pipe first, and then perform the intubation action, which is extremely inconvenient to install. Otherwise, if the intubation action is performed directly, There will be hidden dangers such as leakage and detachment due to insufficient insertion depth of the pipe, which is difficult to meet the customer's requirements for reliable and fast quick-connect pipe fittings

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