Self-locking type flow control valve

Abstract

The invention discloses a self-locking type flow control valve and belongs to the technical field of building pipe network safety devices. The self-locking type flow control valve comprises a main body; the left side of the main body is connected with a branch pipe, and the right side of the main body is connected with a main pipe; the main body is composed of a pipe head piece, a valve element, acurve elastic piece and a heap-shaped spring; the main pipe head piece is connected in a hole in the end of the main pipe; the curve elastic piece is fixedly connected to a boss of a left side innerhole of the pipe head piece; a toothed groove is formed in the outer diameter of the left side of the pipe head piece and sleeved with a flexible lining; the branch pipe and the flexible lining are fixed through a pipe hoop; the right side of the pipe head piece is connected with an outer screw thread for screwed connection, and an inner screw thread for adjustment is machined at the inner diameter of the right side of the pipe head piece; a heap-shaped spring cavity is formed in a right side hole of the pipe head piece; a throttling opening is formed at one corner of the heap-shaped spring cavity; and the heap-shaped spring is placed in the heap-shaped spring cavity. The self-locking type flow control valve is convenient and humanized in structural design and has the advantages of being convenient to mount, easy to manufacture, high in universality, safe, reliable, long in life and the like.

Description

technical field [0001] The invention relates to the technical field of building pipe network safety devices, and more specifically relates to a self-locking flow control valve. Background technique [0002] Current engineering buildings and civil facilities often involve pipeline connection parts. The previous manual flow control valves and self-operated flow control valves are extremely inconvenient to use and have many shortcomings: 1. Failure to cut off the flow in time when there is a sudden burst in the pipe network The phenomenon not only causes resource waste but also causes environmental pollution; 2. Once the pipe network installed in the pipe gallery catches fire, especially in places with power supply, it is not easy to use water to extinguish the fire, which poses a great safety hazard; 3. The manufacturing is cumbersome, large in size and high in cost. ; 4. Poor versatility; 5. The installation process is time-consuming and labor-intensive; 6. The control valve ...

AI Technical Summary

Problems solved by technology

[0002] Current engineering buildings and civil facilities often involve pipeline connection parts. The previous manual flow control valves and self-operated flow control valves are extremely inconvenient to use and have many shortcomings: 1. Failure to cut off the flow in time when there is a sudden burst in the pipe network The phenomenon not only causes waste of resources but also causes environmental pollution; 2. Once the pipe network installed in the pipe gallery catches fire, especially in places with power supply, it is not easy to use water to extinguish the fire, which poses a great safety hazard; 3. The manufacture is cumbersome, large in size and high in cost. ; 4. Poor versatility; 5. The installation process is time-consuming and labor-intensive; 6. The control valve for hydraulic power is particularly polluting to the environment, and the control valve for gas will aggravate the flame; 7. It is inconvenient to install and troubleshoot; 8. Especially Once the electric flow control valve is powered off, the flow cannot be cut off in time

Images