Valve installing switch self-locking limiting device
A limit device and switch technology, applied in the direction of pipes/pipe joints/pipe fittings, mechanical equipment, pipe components, etc., can solve problems such as complex structures
Pending Publication Date: 2021-01-15
陕西大唐燃气安全科技股份有限公司
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Problems solved by technology
[0003] The current implementation scheme on the market is to decompose the two functions of the switch into two design switches, so that the two functions are controlled by two independent switches, and the structure is complex.
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[0028] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] See Figure 1-Figure 9 The embodiment of the present invention provides a valve installation switch self-locking limit device, including a valve body 1, adjusting the opening and closing degree of the valve body 1, and a switch knob 2 for locking or releasing the pipeline interface by pressing, and a valve body 1 for installation. Pipeline i...
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The embodiment of the invention provides a valve installing switch self-locking limiting device. The device comprises a valve body, a switch knob for adjusting the opening degree of the valve body anda pipeline connector for installing the valve body; the device further comprises a boss arranged on a valve seat of the valve body and a push rod connected to the boss in a sleeved mode; the push rodis rotationally connected with the boss; a clamping plate is arranged in the valve seat and located in a cavity between the valve body and the valve seat, and a through hole matched with the outer diameter of the pipeline connector is formed in the middle of the clamping plate; a rotating cavity matched with the push rod is formed in the bottom of the clamping plate, and a limiting cavity is formed in the right side wall of the rotating cavity; a bayonet lock matched with the limiting cavity is arranged on the push rod; and the switch knob is connected with the clamping plate through a clamping groove. By additionally arranging a structural part to be matched with a moving part in the valve body and adjusting the push rod, when a switch is under a ventilation condition, only the gas on-off function can be achieved, the function of switching off equipment cannot be achieved, and therefore the use safety of a valve is improved.
Description
technical field [0001] The invention relates to the technical field of valve safety, in particular to a valve installation switch self-locking limit device. Background technique [0002] Most of the designs of the valve body existing in the market at the valve body switch place are to merge the functions of cutting off gas and disconnecting device. During use, when the valve body switch is in the state of gas opening and closing, the function of the disconnecting device is locked, and the valve body cannot be separated from the pipeline through the switch; when the valve body switch is in the state of gas closing or between opening and closing, it is disconnected The function of the device is opened, and the valve body is separated from the connecting pipeline through the action switch. Therefore, during use, it is very easy for the valve body switch to open the disconnecting device function of the valve body while realizing the gas opening and closing function, resulting i...
Claims
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IPC IPC(8): F16L55/07
CPCF16L55/07
Inventor 孙广志黄永刚陈文斌
Owner 陕西大唐燃气安全科技股份有限公司