Coded lock of valve
A combination lock and valve technology, applied in the field of combination locks and combination locks on valves, can solve the problems that the combination lock cannot be opened, affect the normal opening and closing, and expose the internal structure, and achieve a simple way to change the password, high applicability, simple structure
Inactive Publication Date: 2014-06-11
卓旦春
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Problems solved by technology
[0006] However, when it is in the locked state, since the special handle is not connected to it, the internal structure is exposed, and impurities, etc., will affect the normal opening and closing
At the same time, you must use the corresponding special handle when unlocking. If the special handle is lost or damaged, the combination lock cannot be opened.
Moreover, special tools also need to be kept separately, and their applicability is relatively poor.
Method used
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Embodiment Construction
[0037] Such as figure 1 with figure 2 with image 3 Shown, the password lock of this valve is arranged on the outside of valve body 5, and it covers the valve rod 6 outer ends of valve.
[0038] The combination lock of this valve includes bonnet 1 and bonnet 2, the end of bonnet 1 has a digital mark, and the outside of bonnet 2 has a digital mark. The bonnet 1 has four connecting holes 1c through it, and the four connecting holes 1c are evenly distributed along the circumference of the bonnet 1 . The fastener 7 passes through the connection hole of the valve cover 1, and then the fastener 7 is connected to the valve body 5, so that the valve cover 1 is fixedly connected to the valve body 5 of the valve. The fasteners 7 used here are screws.
[0039] The valve cover 1 is disc-shaped and has a through hole 1b in its center, through which the outer end of the valve rod 6 can pass through. The pin 3, in this embodiment, the through hole 1b runs through the coupling seat 1a. ...
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The invention provides a coded lock of a valve and belongs to the technical field of valves. The coded lock of the valve solves the problems that the coded lock on the existing valve is complicated in structure and high in cost and the like. The coded lock of the valve comprises a valve cover for being fixedly connected onto a valve body of the valve and a valve cap capable of being connected onto the valve cover, wherein the valve cover and the valve cap are provided with scale markings, the valve cover is in a disk shape, a through hole for enabling a valve rod to penetrate through is arranged at the center of the valve cover, the valve cap is cylindrical, a clamp ring is fixedly and axially connected on the inner side of the valve cap, a cavity body for containing the outer end of the valve rod is arranged between the valve cover and the valve cap when the valve cover is sleeved on the valve cap, a protruding positioning pin is arranged on the lateral portion of the valve cover, and the positioning pin abuts against the clamp ring to enable the valve cover and the valve cap to be axially fixed. A protruding head which can be contacted with the positioning pin when rotates is arranged on the clamp ring, and unlocking mechanisms capable of enabling the positioning pin to break away from the positions of the clamp ring and the valve cap when the valve cap rotates to a set positioning in forward and backward mode are arranged on the clamp ring and the valve cap. The coded lock of the valve has the advantages of being simple in structure, easy and convenient to operate, low in manufacture cost and the like.
Description
technical field [0001] The invention belongs to the technical field of valves, and relates to a coded lock, in particular to a coded lock used on valves. Background technique [0002] Valves are widely used in daily life and industrial production. In order to prevent misoperation and prevent unrelated personnel from operating the valve, a lock is usually provided on the valve. The valve is locked by the lock, and the valve cannot be opened and closed or its opening degree can be changed without opening the lock. [0003] Its publication number CN2876321Y of Chinese patent provides a kind of " onshore wellhead anti-theft valve ", and it comprises valve body and bonnet, and bonnet top is equipped with anti-theft combination lock, forms closed structure, and combination lock comprises lock column and its upper sequence Lock cap, spring, cleat and pin installed. The above-mentioned patent has the characteristics of a closed overall structure, no gaps, strong destructive resis...
Claims
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IPC IPC(8): F16K35/08F16K37/00F16K27/12
Inventor 卓旦春
Owner 卓旦春