CN2553218Y

CN2553218Y - Valve with locking cap

Info

Publication number: CN2553218Y
Application number: CN 02274061
Authority: CN
Inventors: 于继涛
Original assignee: 李述宏
Priority date: 2002-07-04
Filing date: 2002-07-04
Publication date: 2003-05-28
Anticipated expiration: 2012-07-04

Abstract

The utility model relates to a valve with a locking cap. A lockset is arranged on an upper opening of a valve body, an edge rounding is arranged at the upper end of an inner sleeve which is sheathed on the outer wall of the upper opening of the valve body, and the middle part of the outer wall is provided with an annular notch. Two axial notch-shaped openings are arranged on the inner sleeve, wherein, the bottom of the axial notch-shaped opening is flush with the lower edge of the annular notch of the inner sleeve. An elastic retainer ring for a hole is arranged in the annular notch of the inner sleeve, and two convex lugs are penetrated through the notch-shaped opening end of the inner sleeve and are butted and inserted in the notch which is arranged at the outer wall of the opening of the valve body. The middle part of the inner part of a lock nut which is covered outside the inner sleeve is provided with the annular notch which is corresponding to the elastic retainer ring for a hole. The utility model has the advantages of simple structure, reliable locking, favorable performance on breaking prevention and good interchangeability and can be used for many times. In addition, the utility model can be opened very conveniently with special tools and is beneficial for managing.

Description

The valve that has the kayser cap

Technical field the utility model relates to a kind of valve, particularly has the valve of lockset.

The present people of background technique have designed the valve of many kinds tool with lock, they respectively have its characteristics, as at January 3 calendar year 2001 utility model patent communique disclosed a kind of＜the valve lock (patent No. 99250543.7) it mainly form by cavity lock body and lock nut, wherein being positioned at the lock body internal diameter that puts in the valve rod top diminishes, the piston ring ditch that lock body inwall bottom is provided with and valve body boss piston ring matches, lock body inwall top also is provided with the piston ring ditch, and lock nut is the plectane that has piston ring.Though this model utility is simple in structure, the energy Locked valve, but the sheet lock nut is easily destroyed, does not have the effect of Locked valve, and opening this valve lock in addition needs the broken taking-up of lock nut, therefore valve of every unlatching will be changed lock nut one time, do some waste like this.

Summary of the invention the utility model mainly is to be provided with lockset in interior valve body upper shed of establishing valve rod.Valve body of the present utility model can be that ball valve also can be a stopcock, they can be two logical also can be triple valve.This valve body is same as the prior art substantially, promptly mainly includes valve body, valve seat, spool and valve rod.Preferably the upper end of valve rod is lower than valve body upper open end limit.If rotation valve rod needs special tool is reached in the lock body, it can be used as the secondary locking mechanism of valve body.Lockset of the present utility model mainly includes: interior cover, back-up ring and lock nut.Cover is for being socketed in the cylindrical body on the valve body upper shed outer wall wherein, and its upper end is provided with the chamfering that the assembling back-up ring is used, and its outer wall middle part is provided with annular groove, and preferably the external diameter of groove bottom is a bit larger tham the external diameter on groove top.In this annular groove top, put and be provided with two axial slit openings, concordant at the bottom of this slit opening with the lower edge of above-mentioned annular groove.Be provided with circlip for hole in the annular groove of interior cover, two lug is corresponding with interior two slit openings that put respectively.On the valve body upper shed outer wall position corresponding, be provided with semi-circular or the loopful connected in star again with the inner sleeve connected in star.So cover flute profile opening end tip cutting was in the groove of valve body in two lugs of back-up ring passed.The lock nut of cover outside in covering on, it is a circular groove shape housing, and the middle part is provided with the annular groove corresponding with circlip for hole in the housing of this lock nut, and circlip for hole is positioned at it again, valve body, interior cover and lock nut can be connected as a single entity, and realizes the locking of valve.

The utility model has following advantage compared to existing technology:

1, simple in structure, locking is reliable, preventing destructing performance good.

2, parts buyable is made simply, is reduced cost.

3, interchangeability is good, can repeatedly use under different occasions.

4, with special tool open very convenient, be beneficial to management.

Description of drawings

Fig. 1 is that schematic representation cuts open in the utility model master office of looking.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is that the master of cover in the utility model looks schematic representation.

Fig. 4 is the schematic top plan view of cover in the utility model.

Embodiment establish valve seat, spool and valve rod in the two logical spherical valve bodies 1, and the upper end of valve rod is lower than valve body upper open end limit in the schematic representation of the valve that has the kayser cap illustrated in figures 1 and 2.Be provided with lockset in the valve body upper shed.Its interior cover 3 upper ends that are socketed on the valve body upper shed outer wall are provided with chamfering, the outer wall middle part is provided with annular groove, the external diameter of groove bottom is a bit larger tham the external diameter on groove top, and groove top is provided with axial slit opening concordant with inner sleeve connected in star lower edge at the bottom of two, as shown in Figure 3 and Figure 4.In Fig. 1 and Fig. 2, be located at the circlip for hole 4 in the inner sleeve connected in star again, the slit opening end tip cutting of cover was in the semi-circular groove of valve body upper shed outer wall in two lug passed.Lock nut 5 its interior middle parts of cover outside are provided with the annular groove corresponding with circlip for hole in covering on.

Claims

1, a kind of valve that has the kayser cap, it mainly includes valve body, valve seat, spool and valve rod, it is characterized in that: be provided with lockset in the valve body upper shed, its interior set upper side that is socketed on the valve body upper shed outer wall is provided with chamfering, the outer wall middle part is provided with annular groove, put in being somebody's turn to do and be provided with axial slit opening concordant at the bottom of two with inner sleeve connected in star lower edge, be located at the circlip for hole in the inner sleeve connected in star, two lug passes the slit opening end tip cutting of interior cover in the groove of valve body upper shed outer wall, and its interior middle part of the lock nut of cover outside is provided with and circlip for hole counterpart annular groove in covering on.

2, the valve that has the kayser cap according to claim 1 is characterized in that: inner sleeve connected in star lower outer diameter is greater than the external diameter on top.

3, the valve that has the kayser cap according to claim 1 and 2 is characterized in that: the upper end of valve rod is lower than valve body upper open end limit.