CN201293117Y

CN201293117Y - Anti-dismantling ball-valve

Info

Publication number: CN201293117Y
Application number: CNU2008201665407U
Authority: CN
Inventors: 陈志清; 严荣杰
Original assignee: NINGBO ZHIQING INDUSTRIAL Co Ltd
Current assignee: NINGBO ZHIQING INDUSTRIAL Co Ltd
Priority date: 2008-10-28
Filing date: 2008-10-28
Publication date: 2009-08-19
Anticipated expiration: 2018-10-28

Abstract

The utility model relates to an anti-dismounting ball valve which comprises a valve body, a ball valve core, a handle and a valve rod, wherein the valve body is provided with a protruding neck with a shaft hole, and the valve rod is arranged in the shaft hole. The anti-dismounting ball valve is characterized in that a protruding stud protruding upwards is arranged at the outer side of the protruding neck, and a first arc groove is arranged at the bottom of the handle; the protruding stud can slide in the first arc groove and is respectively limited at either end of the first groove when the handle is in a state that the valve is fully closed or fully opened, and a second groove is also arranged at the bottom of the handle, is independent from the first arc groove and can be inserted by the protruding stud for fixation. Compared with the prior art, the ball valve can be set in two states as required; on one hand, the ball valve is used as a common ball valve, the protruding stud is limited in the first groove, and the handle of the ball valve can be freely rotated to control the switching of the valve; on the other hand, the ball valve is in a state of free rotation limitation, the protruding stud is inserted in the second groove, and the handle and the valve body of the ball valve are mutually limited.

Description

The tamper ball valve

Technical field

The utility model relates to a kind of valve, particularly a kind of tamper ball valve.

Background technique

In order to strengthen the management of public utilities, strengthen the antitheft ball valve of all kinds has been appearred in Resource allocation and smoothing and conveyings such as water, gas, heat at present.Existing its anti-theft device of antitheft ball valve is mainly mechanical lock anti-theft device or magnetic lock anti-theft device, wherein, the antitheft ball valve of machinery locking-type, its lock core structure complexity, the manufacture cost height, the parts of control valve switch mostly are the key that matches with lock core, size is difficult for excessive, and, require the moment of torsion of valve switch big for the valve of big specification, adopted the valve of this lock core structure just not easy to operate since so; And the antitheft ball valve of magnetic locking-type is compared with the antitheft ball valve of mechanical locking-type, and its structure is simplified, but that magnetic texure exists is fragile, the problem of maintenance difficult, therefore, and the present antitheft further improvement that awaits to do.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of can either the use as ordinary ball valve can realize anti-theft feature, tamper ball valve simple in structure at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this tamper ball valve includes

Valve body has the protruding neck in a tape spool hole at vertical side;

Spherical valve core is arranged in the described valve body rotationally;

Handle; And

Be arranged on the valve rod in the described axis hole, its two ends connect described spherical valve core and handle respectively, and drive the spherical valve core rotation under handle rotates;

It is characterized in that: the described protruding neck outside has a projection that raises up, correspondingly, described handle offers arc first groove that can hold this projection slippage in the bottom, handle be in that valve is closed fully or the state of complete opening under, described projection is limited in the two ends of described first groove respectively; And, described handle also offer in the bottom be independent of outside the described groove and can and second groove fixed of described projection inserting.

Described projection cross section is square, and correspondingly, described second groove is a square groove, and two positive stop ends of described second groove and described first groove are positioned on the same diameter.So handle is at spool under the state of closing or opening, projection can be fixed with second groove realization inserting, prevents the rotation of handle.

Described valve stem casing is provided with the O RunddichtringO, and the upper end of described valve rod and handle are fastenedly connected by a nut, and the top of this nut is fixing by tamper lid, and the lower end of described valve rod is connected with the fluting close-fitting of spherical valve core.

Compared with prior art, advantage of the present utility model is: the handle arrangement that changes control ball valve switch on the basis of existing ball valve, make ball valve that two states can be set as required: a kind of state is to use as ordinary ball valve, projection is spacing in first groove, the switch of the handle ground free to rotate control valve of ball valve; Another kind of state is that valve is in the state that cannot rotate automatically, and the projection inserting is fixed in second groove, and the handle of ball valve and valve body are spacing mutually.

Description of drawings

Fig. 1 is the utility model embodiment's a three-dimensional exploded view;

Fig. 2 is the utility model embodiment's a valve body structure schematic representation;

Fig. 3 is the plan view of valve body shown in Figure 2;

Fig. 4 is the utility model embodiment's a handle arrangement schematic representation;

Fig. 5 is the plan view of handle shown in Figure 4;

Fig. 6 is the utility model embodiment's a user mode sectional view (valve open state);

Fig. 7 is the utility model embodiment's a user mode sectional view (valve closing state).

Embodiment

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

As Fig. 1～shown in Figure 7, be a specific embodiment of the present utility model, this tamper ball valve includes:

Valve body 1, this valve body has the protruding neck 11 in a tape spool hole 111 at vertical side, the projection 12 that protruding neck 11 radially is projected with is one that raise up, comprise first side elevation 121 and second side elevation 122, these projection 12 cross sections are square, valve body 1 also is connected with a joint 7 at the axial side opening, so that realize and being connected of other pipelines;

Be arranged on the spherical valve core 2 in the valve body 1 rotationally, for making the sealing better effects if, spherical valve core 2 is provided with sealing gasket 6 in the contacting point of its surface, gateway, rear and front end and valve body 1 passage;

The handle 3 that is used for the opening and closing ball valve, handle 3 have lid 3 ' and handgrip 3 "; the lid of handle 3 bottom have with the external frame of projection 12 suitable and can be in 90 degree scopes the scalloped recess 31 of rotation positioning; this scalloped recess 31 has the first spacing stopper 311 and the second spacing stopper 312; be under the state that spool opens fully at ball valve, the first spacing stopper 311 of first side elevation 121 of projection 12 and scalloped recess 31 leans; Be under the complete closing state of spool at ball valve, the second spacing stopper 312 of second side elevation 122 of projection 12 and scalloped recess 31 leans; Also offer in the bottom of handle 3 can directly be set on the projection 12 and with the projection square groove 32 of inserting mutually, two positive stop ends of this square groove 32 and scalloped recess 31 are positioned on the same diameter, projection 12 is contained in the square groove 32 and can not slides in square groove 32, thereby keep handle 3 not turn at a state, handle 3 also has a center hole 33 in the lid neutral position, so, handle is under the state of closing or opening at spool, projection can realize that inserting fixes with square groove, prevents the rotation of handle;

Be arranged on the valve rod 4 in the axis hole 111 of described protruding neck 11, can under rotating, described handle 3 drive spherical valve core 2 rotations, be arranged with O RunddichtringO 5 on the valve rod 4, valve rod 4 two ends are two flat sides respectively, the upper end of valve rod 4 and handle 3 are fastenedly connected by an irregular abnormity nut 8, the top of this abnormity nut 8 is fixing by tamper lid 9, and the lower end of valve rod 4 is connected with fluting 21 close-fittings of spherical valve core 2.

In use, but ball valve has freely openable and unswitched two kinds of working conditions, can cover 9 colors according to the tamper of handle 3 upper ends distinguishes, when the upper end of handle 3 is installed as green tamper and covers 9, scalloped recess 31 on the handle 3 and the projection 12 on the valve body 1 match at this moment, ball valve can freely open or close in 90 degree scopes as ordinary ball valve; When the upper end of handle 3 was installed as red tamper and covers 9, the square groove 32 on the handle 3 was fastened on the projection 12 of valve body 1, and ball valve is in the state that opens or closes, and the handle state is fixed and can not freely be rotated.

When above-mentioned two states need exchange, then must destroy the tamper lid, use the special opening instrument to pull down abnormity nut, and then reinstall handle.Therefore, the utility model has been realized the function of a valve double-purpose in the actual use, can play the effect of ordinary ball valve, and can transfer the tamper ball valve with anti-theft feature under the situation of special requirement.

Claims

1, a kind of tamper ball valve includes

Valve body has the protruding neck in a tape spool hole at vertical side;

Spherical valve core is arranged in the described valve body rotationally;

Handle; And

2, tamper ball valve according to claim 1 is characterized in that: described projection cross section is square, and described second groove is a square groove, and two positive stop ends of described second groove and described first groove are positioned on the same diameter.

3, tamper ball valve according to claim 1 and 2, it is characterized in that: described valve stem casing is provided with the O RunddichtringO, the upper end of described valve rod and handle are fastenedly connected by a nut, the top of this nut is fixed by the lead sealing of tamper lid, and the lower end of described valve rod is connected with the fluting close-fitting of spherical valve core.