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Compact type expansion gate valve

A compact, gate valve technology, applied in the field of expansion gate valves and gate valves, can solve the problem of high cost, and achieve the effect of reducing the cost of gate valves, reducing the requirements for machining accuracy of parts, and reducing assembly errors.

Inactive Publication Date: 2017-05-10
DHV VALVE & FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The expansion mechanism of the expansion gate valve in the prior art is mainly composed of rockers, bolts, nuts, guard plates, etc., the number of parts is large, and the processing accuracy of each is relatively high, and there are strict requirements for assembly errors, so the cost higher

Method used

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  • Compact type expansion gate valve
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  • Compact type expansion gate valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] Such as Figure 1 to Figure 2 The compact expansion gate valve shown includes a gate assembly 1, a valve body 2, a valve stem 3, and a valve seat 4. The gate assembly 1 includes a main gate 5 and a secondary gate 6, and the main gate 5 is vertical The height is higher than the auxiliary flashboard 6, the upper surface 7 of the main flashboard is set flush with the upper surface 8 of the auxiliary flashboard, the bottom of the main flashboard 5 exceeds the lower end surface 9 of the auxiliary flashboard, and the main flashboard The gate plate 5 and the auxiliary gate plate 6 have correspondingly arranged inclined surfaces that cooperate with each other, the valve stem 2 is connected to the upper surface 7 of the main gate plate, and also includes a guide plate 10, three connecting pieces 14, the The guide plate is provided with a г guide groove 11, a first-type through hole 12 and two cylindrical through-holes 13, the first connector passes through the first-type through...

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PUM

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Abstract

A compact type expansion gate valve comprises a flashboard assembly, a valve body, a valve rod and a valve seat. The flashboard assembly comprises a main flashboard and an auxiliary flashboard. The vertical height of the main flashboard is larger than that of the auxiliary flashboard. The upper end face of the main flashboard is flush with the upper end face of the auxiliary flashboard. The bottom of the main flashboard is beyond the lower end face of the auxiliary flashboard. The main flashboard and the auxiliary flashboard are provided with bevels which are arranged correspondingly and are matched with each other. The valve rod is connected with the upper end face of the main flashboard. The compact type expansion gate valve further comprises a guide plate and three connection parts. The guide plate is provided with an r guide groove, a linear through hole and two cylindrical through holes. An expansion mechanism of the expansion gate valve only comprises the guide plate and a guide piston which is installed on the valve body, the requirements of the expansion mechanism of the compact type expansion gate valve for part machining precision are lowered, the requirements for assembly error is lowered, and thus the cost of the gate valve is reduced.

Description

technical field [0001] The invention relates to the field of gate valves, in particular to the field of expansion gate valves. Background technique [0002] As a valve for controlling the on-off of the pipeline, the expansion gate valve is widely used in various fields because of its small flow resistance and good sealing performance. The expansion mechanism of the expansion gate valve in the prior art is mainly composed of rockers, bolts, nuts, guard plates, etc., the number of parts is large, and the processing accuracy of each is relatively high, and there are strict requirements for assembly errors, so the cost higher. Contents of the invention [0003] In order to overcome the defects of the prior art, the present invention provides the following technical solutions: [0004] A compact expansion gate valve, comprising a gate assembly, a valve body, a valve stem, and a valve seat. The gate assembly includes a main gate and an auxiliary gate. The vertical height of th...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/314F16K3/30
CPCF16K3/02F16K3/30F16K3/314
Inventor 韩泽海
Owner DHV VALVE & FOUNDRY