A spring-loaded card valve
A card-type valve and spring-type technology, applied in safety valves, balance valves, valve devices, etc., can solve problems such as burner flame instability
Active Publication Date: 2016-08-17
卢致英
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Problems solved by technology
The problem is: the knob set at the end of the switch rod is easily affected by external force, and the switch rod rotates, causing the burner flame to be unstable
Method used
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] like figure 1 , figure 2 As shown, a spring-type card valve includes a valve body 1, a switch rod 2, a valve core 3 arranged at the end of the switch rod 2, an air intake device 4, a safety device and a pressure reducing device 5, the valve body 1 Including the air intake chamber 11 of the air intake device 4, the safety chamber, the decompression chamber 12 of the decompression device 5 and the switch rod passage 13 communicating with the decompression chamber, the switch rod passage 13 communicates with the decompression chamber 12 through an air guide hole 14 A valve core seat 6 is arranged on the partition between the switch rod channel 13 and the decompression chamber 12, the valve core seat 6 is located on the partition plate in the switch rod channel 13, and the air guide hole runs through the valve core seat 6; the valve core 3 and The valve core seat...
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An improved spring type cassette valve comprises a valve body, a switch lever, a valve core arranged at the end of the switch lever, an air inlet device, a safety device and a pressure reducing device, wherein the switch lever comprises the handle portion, the polish rod portion, the thread portion and a valve core installing seat arranged at the end, and a switch channel is provided with a counter bored hole and inner threads. The improved spring type cassette valve further comprises a pressure spring, wherein the valve core installing seat is sleeved by one end of the pressure spring, the end of the pressure spring is matched with the axial end of the thread portion, the other end of the pressure spring is matched with a partition plate at the position of the valve core seat, the thread portion and the switch channel are subjected to liquid-gas sealing, and the polish rod portion and the counter bored hole are subjected to liquid-gas sealing. By adopting the structure, due to the fact that the pressure spring acts on the partition plate at the positions of the switch lever and the valve core seat, friction force between the pressure spring and the axial end of the thread portion and tension rotation of the pressure spring are overcome when the switch lever is turned. The defect that a rotary knob at the end of the switch lever is accidentally touched to enable the switch lever to rotate and accordingly flame is unstable when the improved spring type cassette valve is used in the prior art is overcome.
Description
technical field [0001] The invention relates to a cassette furnace gas valve. Background technique [0002] The current existing technology, Chinese patent ZL201320062584.6, invention name: spring type card valve. It includes a valve body, a switch rod, a valve core arranged at the end of the switch rod, an air intake device, a safety device and a decompression device. The valve body includes an air intake chamber, a safety chamber, a decompression chamber, and a A switch rod channel, a valve core seat is arranged on the partition between the switch rod channel and the decompression chamber, and the valve core cooperates with the valve core seat; the switch rod and the switch rod channel rotate and cooperate. The problem is that the knob arranged at the end of the switch rod is easily affected by external force, and the switch rod rotates, causing the burner flame to be unstable. Contents of the invention [0003] The purpose of the present invention is to provide a spri...
Claims
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IPC IPC(8): F16K17/00
CPCF24C3/122
Inventor 卢致英
Owner 卢致英