CN203585522U - Welded valve safety lock - Google Patents

Abstract

The utility model relates to a welded valve safety lock and solves the problem that potential safety hazards are caused due to opening-closing randomness of the existing valve. The welded valve safety lock comprises a lock body fitted to the upper portion of a valve stem of a valve block. The welded valve safety lock is technically characterized in that the lock body is composed of a lock collar, a magnetic lock and an unlocking fastener; the valve stem of the valve block is hidden and fitted inside a cavity of the lock collar; the upper end face of the valve stem contacts with the lower end face of a through hole of an upper open groove of the lock collar; the valve stem and the lock collar are fixedly connected through a washer disposed at the upper end of the through hole of the open groove and a fastening screw fixed on the valve stem; a body of the magnetic lock inserted into the unlocking fastener is placed in the upper open groove; after the unlocking fastener is extracted, a self-tension limiter disposed on the body of the magnetic lock is popped into a locking groove in the sidewall of the upper open groove of the lock collar, and axial motion of the body of the magnetic lock in the axial direction is limited. The welded valve safety lock is reasonable in design, compact in structure, flexible to operate, fast and reliable to assemble and less prone to damage, and safety of a small-diameter welded valve in the non-operating or operating state can be significantly improved.

Description

Welding valve safety lock

Technical field

The utility model relates to a kind of for controlling the safety lockset of welding valve switch, a kind of welding valve safety lock of controlling the random rotational valve core of valve rod particularly, be mainly used in the safety switch of controlling small-bore welding valve, also can be used for the valve that needs control switch of other similar structure.

Background technique

Welding valve is generally arranged on the dangerous pipelines such as natural gas line or hot water pipeline, so the safety of valve is most important.Especially existing small-bore valve rod is controlled valve or the welding valve of spool, and general using spanner is directly pulled valve rod and made valve core rotation, is very easy to the switch of control valve.Due to the randomness of wrench operated, so cause arbitrarily switch of valve, easily have an accident.Especially small-bore welding valve, when off working state, is easy to be opened, and can cause the potential safety hazards such as leakage.Therefore, the valve with lockset just meets the tendency and looks unfamiliar.The lock structure of Valve with lock adopts mechanical plug-in lock body mostly, and the spanner on valve rod or handwheel are carried out spacing.Removing the key that spacing general normal employing and lock body match opens.Although the lock body of this lockset plays certain protective action, is subject to damage, also can produce the problem that jeopardizes pipe safety.

Model utility content

The purpose of this utility model is to provide a kind of welding valve safety lock, solved existing small-bore welding valve because of the random problem that produces potential safety hazard of switch, it is reasonable in design, compact structure, flexible operation, assembling are fast, reliably, be not easy to damage, can significantly improve the Security of small-bore welding valve when off working state or working state.

The technological scheme that the utility model adopts is: this welding valve safety lock comprises the lockset on the valve rod top that is assembled in valve body, and its technological points is: described lockset consists of lock tube, magnetic lock and unlocking card; The valve rod of valve body is hidden to be assembled in the mantle cavity of lock tube lower openings, valve rod upper-end surface contacts with the lower end surface of lock tube upper opening groove through hole, utilization is placed in the pad of open recess through hole upper-end surface and is fixed on the Cock screw on valve rod through through hole, and valve rod and lock tube are connected and fixed; The lock body that inserts the magnetic lock of unlocking card is placed in lock tube upper opening groove, takes out unlocking card, be arranged on magnetic lock lock body in tensioning limiting body springs into the draw-in groove of lock tube upper opening recess sidewall, the lock body of restriction magnetic lock is along lock tube axial motion.

Described lock tube adopts the sleeve with upper and lower opening, and upper, open end arranges the lockhole that inserts unlocking card, between the mantle cavity of lower openings and the groove of upper opening, utilizes through hole to be communicated with.

Advantage and the good effect that the utlity model has are: because the utility model adopts the lockset consisting of lock tube, magnetic lock and unlocking card, utilization is placed in the pad of open recess and is fixed on the Cock screw on valve rod, valve rod and lock tube are connected and fixed, thereby the valve rod that makes valve body is hidden, be assembled in the mantle cavity of lock tube, so it is reasonable in design, compact structure, flexible operation, assembling are fast.Adopt in addition the commercially available magnetic lock with unlocking card, the valve rod that can utilize magnetic lock and coordinate lock tube to control in hidden mantle cavity rotates, and then the switch of control spool, can significantly improve the Security of small-bore welding valve when off working state or working state.Therefore, the utility model has solved existing small-bore welding valve when off working state, because of the random problem that produces potential safety hazard of switch.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is plan view.

Sequence number explanation in figure: 1 unlocking card, 2 magnetic lock, 3 pads, 4 fastening screw trip bolts, 5 valve rods, 6 lock tubes, 7 limit bodies, 8 valve bodies.

Embodiment

According to Fig. 1～2, describe concrete structure of the present utility model in detail.This welding valve safety lock comprises the parts such as lockset on valve rod 5 tops that are assembled in valve body 8.Wherein lock tube 6 is processed into the sleeve with upper and lower opening, and its upper, open end arranges lockhole, to facilitate, inserts or take out unlocking card 1, between the mantle cavity of lower openings and the groove of upper opening, utilizes through hole to be communicated with.Lock tube 6 is sleeved on the periphery of valve rod 5, make in the hidden mantle cavity that is assembled in lock tube 6 lower openings of the valve rod 5 on valve body 8 tops, valve rod 5 upper-end surfaces contact with the lower end surface of lock tube 6 upper opening bottom portion of groove through holes, utilization is placed in the pad 3 of open recess bottom through-hole upper-end surface and is fixed on the Cock screw 4 on valve rod 5 through through hole, and valve rod 5 and lock tube 6 are connected and fixed.

Lockset consists of lock tube 6, magnetic lock 2 and unlocking card 1 etc.Magnetic lock 2 and unlocking card 1 adopt the commercially available prod of Yuhuan county promotion Suo Ye Co., Ltd.On the lock body of this magnetic lock 2, be provided with from tensioning limiting body 7, unlocking card 1 inserts after the lockhole of lock tube 6 tops, in limit body 7 indentation lock bodies, can remove spacing between lock body and lock tube 6.By inserting the lock body of the magnetic lock 2 of unlocking card 1, be placed in lock tube 6 upper opening grooves.Take out unlocking card 1, now be arranged on magnetic lock 2 lock bodies in tensioning limiting body 7 springs into the draw-in groove of lock tube 6 upper opening recess sidewall automatically, the lock body of restriction magnetic lock 2 is along lock tube 6 axial motions, can utilize the upper open end of magnetic lock 2 shutoff lock tubes 6, valve rod 5 is not contacted with the external world.What like this, just can make that valve all can not be random in the working state of the off working state of closing or unlatching opens or closes.In the time of need to unblanking, unlocking card 1 is inserted to the lockhole of lock tube 6 tops, in limit body 7 indentation lock bodies.Because removing the shutoff of 2 pairs of lock tube 6 upper open ends of magnetic lock, therefore can be fixed on the Cock screw 4 on valve rod 5 by removal, taking-up is placed in the pad 3 of open recess bottom through-hole upper-end surface, lock body can be taken out from lock tube 6 upper opening grooves, thereby for unlock staff's assembly wrench, pull valve rod 5 regulating spools, realize open and close valve.

Specific operation are: be that the valve being assembled on pipeline is adjusted to normal working state or off working state, then the spanner on the valve rod of valve body 85 is taken off, lock tube 6 is sleeved on the valve rod 5 of valve body 8, pad 3 and fastening screw trip bolt 4 assemblings are fixed on valve rod 5, compress lock tube 6, then the lock body that inserts the magnetic lock 2 of unlocking card 1 is placed in lock tube 6 upper opening grooves, takes out unlocking card 1.Can make valve when off working state or working state, have can not be random open or close, greatly reduce risk factor, improved the Security that valve is used.

Claims (2)

1. weld a valve safety lock, comprise the lockset on the valve rod top that is assembled in valve body, it is characterized in that: described lockset consists of lock tube, magnetic lock and unlocking card; The valve rod of valve body is hidden to be assembled in the mantle cavity of lock tube lower openings, valve rod upper-end surface contacts with the lower end surface of lock tube upper opening groove through hole, utilization is placed in the pad of open recess through hole upper-end surface and is fixed on the Cock screw on valve rod through through hole, and valve rod and lock tube are connected and fixed; The lock body that inserts the magnetic lock of unlocking card is placed in lock tube upper opening groove, takes out unlocking card, be arranged on magnetic lock lock body in tensioning limiting body springs into the draw-in groove of lock tube upper opening recess sidewall, the lock body of restriction magnetic lock is along lock tube axial motion.

2. welding valve safety lock according to claim 1, it is characterized in that: described lock tube adopts the sleeve with upper and lower opening, upper, open end arranges the lockhole that inserts unlocking card, between the mantle cavity of lower openings and the groove of upper opening, utilizes through hole to be communicated with.

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