Telescopic valve handle

Abstract

The invention provides a retractable valve handle, which includes a fixed handle, a sliding cavity, a screw thread, a rotary knob, sawtooth, a screw shaft, a telescopic plate, a telescopic handle, a valve stem rotating plate, a valve stem hole, and a fixed block. Sliding chamber, the sliding chamber is provided with a helical shaft that can rotate axially, the left end of the helical shaft passes through the left side of the fixed handle and is connected with the rotary knob, the right side of the helical shaft passes through the fixed block fixed on the top of the sliding chamber, and the helical shaft is provided with There are threads, and there is an expansion plate under the screw shaft. The upper surface of the expansion plate is provided with serrations that engage with the thread. The right end of the expansion plate is fixedly connected with the expansion handle. The right end of the expansion handle is fixed with a valve stem rotating plate. stem hole. The invention has the beneficial effects of labor-saving switching, fast switching speed and convenient use.

Description

technical field [0001] The invention belongs to the technical field of valve equipment, in particular to a retractable valve handle. Background technique [0002] Valves are the control components in the fluid conveying system. They have many functions such as cut-off, adjustment, and diversion. They are important components in industrial production. Industrial valves are mainly divided into gate valves, butterfly valves, and globe valves. These valves have different uses. Each has its advantages, but there are deficiencies when opening and closing the valve. For example, the opening and closing torque of the gate valve is small, and the opening and closing torque is labor-saving, but the switching speed is very slow. The opening and closing torque of the butterfly valve and the globe valve are large, and the opening and closing torque is laborious. In addition, due to the limitation of production space, the longer valve handle cannot be used normally. Therefore, the existi...

AI Technical Summary

Problems solved by technology

[0002] Valves are the control components in the fluid conveying system. They have many functions such as cut-off, adjustment, and diversion. They are important components in industrial production. Industrial valves are mainly divided into gate valves, butterfly valves, and globe valves. These valves have different uses. Each has its advantages, but there are deficiencies when opening and closing the valve, such as the opening and closing torque of the gate valve is small, the opening and closing torque is labor-saving, but the switching speed is very slow, the opening and closing torque of the butterfly valve and the globe valve are large, and the opening and closing torque is laborious.

In addition, due to the limitation of production space, longer valve handles cannot be used normally

Therefore, the existing valve handle has the disadvantages of laborious switching, slow switching speed, inconvenient use, etc.

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