CN202493763U

CN202493763U - Ball valve with lock

Info

Publication number: CN202493763U
Application number: CN2012201046032U
Authority: CN
Inventors: 王朝阳; 祝云霞; 连超燕
Original assignee: NINGBO HUACHENG VALVE CO Ltd
Current assignee: NINGBO HUACHENG VALVE CO Ltd
Priority date: 2012-03-20
Filing date: 2012-03-20
Publication date: 2012-10-17
Anticipated expiration: 2022-03-20

Abstract

A ball valve with a lock comprises a valve body, a valve core, a valve rod, a handle, a fixing bolt and a special spanner matched with the bolt, wherein an axial opening of the valve body is connected with a joint, the valve core is arranged inside a cavity which is formed by the valve body and the joint, and the valve rod is arranged inside a cylinder-shaped cavity which is arranged on an upper portion of the valve body. Two ends of the valve rod are respectively connected with the valve core and the handle, and an outer wall of a shell of the valve body is provided with a protruded piece which is matched with grooves arranged on the handle. The number of the molded grooves arranged on the lower end face of the handle is three, and the three grooves can be matched with the protruded piece to respectively achieve three states that the valve is opened completely, the valve is closed completely, and the valve can be opened and closed in a range of 90 degrees. The fixing bolt used to fix the valve rod and the handle is in an alien shape, a circular cylinder of the head of the fixing bolt is eccentric and has two symmetrical arc surfaces, and the spanner matched with the fixing bolt is in an alien shape. A bolt hole arranged on an upper portion of the handle is slender and deep, and the bolt can not be unscrewed through general tools like a pair of pliers after being fixed. A plug is arranged on an upper portion of the bolt hole to prevent the bolt hole from storing water during outdoor installation, and the water can lead to corrosion of the bolt. The ball valve with the lock is simple in structure, convenient to install, good in anti-thief performance, and easy to manage.

Description

A kind of Ball Valve With Lock

Technical field

The utility model relates to a kind of ball valve, especially a kind of Ball Valve With Lock.

Background technique

Current, valve has been widely used in the people to be had in the industrial fields such as field and oil, chemical industry, and particularly in civil area, valve is as controlling component main in residential building water supply, heating, the supply air line.

In order to strengthen use and management to the pipeline user; Fairly and reasonably realize Resource allocation and smoothing and conveyings such as water, gas, heat; When the user arrearage is in use taken place, delayed and to pay the fees or during the situation of operational failure; Related management department can take certain measure, goes up the valve closing of the pipeline outlet in goalkeeper's users home as asking the professional person, and has only and after this user pays up expense fully or fixes a breakdown, just go up goalkeeper's valve open once more.A kind of in addition situation is the pipeline that uses normally, and wherein the opening and closing of valve all are autotelic, do not allow other people at will to open and close.Therefore the valve that needs to be installed has certain locking, anti-theft feature.

Now technology has a lot of valves with lock, and most valve basically all adopts mechanical key to unblank, complex structure, and this kind lock is easy to get into sand and earth, and the key easy abrasion causes valve not open.Another kind is a Valve with lock, though structure is simple, key design is fairly simple, is simple square or circular, and the user is as long as adopt square or circular thing to improve a little, does not still need the special tool just can be simply with valve open.

Summary of the invention

The utility model technical problem to be solved be to the above-mentioned state of the art and provide a kind of simple in structure, theftproof performance good, can open and close the Ball Valve With Lock that operation limits to it.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of Ball Valve With Lock; Comprise valve body, spool, valve rod, handle, set screw and the special spanner that matches with screw; Wherein the axially open of valve body is connected with valve gap, and spool is arranged in the cavity of valve body and valve gap formation, and valve rod is arranged in the top tubular cavity of valve body; The two ends of valve rod connect spool and handle respectively, are characterized in:

Said valve shell outer wall is provided with a projection, the position of said projection and the groove fit on the handle; ,

Corresponding, form the groove that cooperates locking with projection on the lower end surface of the handle that is connected with valve rod.

As improvement, the groove of moulding has three on the lower end surface of handle, cooperates with projection on the valve body to accomplish three kinds of states such as valve complete opening, valve are closed fully, valve opens and closes respectively in the scope of 90 degree.

As improvement, the said screw that is used for fixing valve rod and handle is a special-shaped screw, and the cylindrical body of its head is eccentric, and the arc surface of two symmetries is arranged;

Corresponding, the head that is used for unscrewing and tightens the spanner of handle also is special-shaped.

As improvement, the screw hole on handle top is thin and dark, after screw is good, can't turn on general utility tools such as pliers.

As improvement, screw hole top is equipped with plug, and screw hole ponding causes the screw corrosion when preventing outdoor installation.

Further improve, the contacting point of the rear and front end of said spool and valve channel, joint is provided with sealing gasket, to improve sealing effect.

Preferably, said spool adopts ball valve core, dish valve core or gate valve gate valve.

Compared with prior art; The advantage of the utility model is: there are three grooves the handle below of employing; Cooperate with projection on the valve body can have that valve body is closed fully, three kinds of different conditions such as valve complete opening, valve can open and close in 90 degree scopes, can different state be provided according to different demands; Fixedly the screw of valve rod and handle is a special-shaped screw, has only supporting with it special spanner ability degree of tightness.The utility model is simple in structure, and is easy for installation, and theftproof performance is good, can be widely used in water supply, heating, the supply air line.

Description of drawings

Fig. 1 is the structural representation of the valve opening state of the utility model.

Fig. 2 is the schematic representation of the valve body of the utility model.

Fig. 3 is the schematic representation of the handle of the utility model.

Fig. 4 is the schematic representation of the set screw of the utility model.

Fig. 5 is the utility model and the schematic representation supporting special spanner of set screw.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in the figure; A kind of magnetic control valve for guarding against theft comprises valve body 1, spool 2, valve rod 3, handle 4, set screw 6 and the special spanner 7 that matches with set screw, wherein the axially open of valve body 1 valve gap 5 that has been threaded; Present embodiment is to adopt ball valve core; Spool 2 is assemblied in the cavity that valve body 1 and valve gap 5 form, and is better in order to make sealability, is provided with sealing gasket 7 in the contacting point of the rear and front end of spool 2 and valve body 1 passage, valve gap 5; Valve rod 3 is arranged in the top tubular cavity of valve body 1, is arranged with O RunddichtringO 31 on the valve rod 3, and valve rod 3 is fixing through screw 6 with handle 4.

Valve body 1 outer shell outer wall is provided with a projection 11; Groove fit on the position of said projection 11 and the handle 4; Corresponding; Form the groove that cooperates locking with projection 11 on the lower end surface of the handle 4 that is connected with valve rod 3, the groove of moulding has three on the lower end surface of handle, cooperates with projection 11 on the valve body 1 and can accomplish three kinds of states such as valve complete opening, valve are closed fully, valve opens and closes respectively in the scope that 90 spend; When the projection on the valve body 1 11 when groove 41 on the handle 4 cooperates, valve is in buttoned-up status, this moment can not rotatable handle, can't open valve; When the projection on the valve body 1 11 when groove 42 on the handle 4 cooperates, valve is in the complete opening state, this moment can not rotatable handle, can't throttle down; When the projection on the valve body 1 11 when groove 43 on the handle 4 cooperates, valve can be opened or throttle down in 90 degree scopes.

The screw 6 that is used for fixing valve rod 3 and handle 4 is special-shaped screw, and the cylindrical body 61 of its head is eccentric, and the arc surface 62 of two symmetries is arranged; Corresponding; The head 71 that is used for unscrewing and tightens the spanner 7 of handle also is special-shaped, and it is neither the shape of rule, neither solid of rotation; Do not have specialized apparatus, cannot copy.

The screw hole 41 on handle top is thin and dark, after screw 6 fixes, can't turn on general utility tools such as pliers, and screw hole 41 tops are equipped with plug 9, and screw hole 41 ponding when preventing the installation of valve open air cause screw 6 corrosions.

During assembling, earlier with having put O RunddichtringO 31 on the valve rod 3, put into along the upper chamber of valve body 1, the axially open of spool 2 from valve body 1 is assembled to the cavity of valve body 1 again, the rear and front end pad of spool 2 is gone up sealing gasket 7, is threaded valve gap 5 fixing then; And valve rod 3 and handle 4 are fixed with set screw.When on pipeline, installing, if be installed in Chang Kai or normally closed occasion, earlier with special spanner 7; Screw down set screw 6; Take out handle, as required the groove on the handle 4 is cooperated with projection 11 on the valve body 1, special spanner is managed concentratedly by administrative staff; If be installed in water, the occasion of keying demand arranged with gas etc., then need the groove on the handle 4 43 be cooperated with projection 11 on the valve body 1, special spanner is by managerial department's keeping.

Claims

1. Ball Valve With Lock; Comprise valve body, spool, valve rod, handle, set screw and the special spanner that matches with screw; Wherein the axially open of valve body is connected with joint, and spool is arranged in the cavity of valve body and joint formation, and valve rod is arranged in the top tubular cavity of valve body; The two ends of valve rod connect spool and handle respectively, are characterized in:

Said valve shell outer wall is provided with a projection, the position of said projection and the groove fit on the handle;

2. Ball Valve With Lock according to claim 1; The groove that it is characterized in that moulding on the lower end surface of handle has three, cooperates with projection on the valve body and can accomplish three kinds of states such as valve complete opening, valve are closed fully, valve opens and closes respectively in the scope of 90 degree;

The screw hole on handle top is thin and dark, after screw is good, can't turn on general utility tools such as pliers.

3. Ball Valve With Lock according to claim 1 is characterized in that said screw hole top is equipped with plug, and screw hole ponding causes the screw corrosion when preventing outdoor installation.

4. Ball Valve With Lock according to claim 1 is characterized in that the said screw that is used for fixing valve rod and handle is a special-shaped screw, and the cylindrical body of its head is eccentric, and the arc surface of two symmetries is arranged;