JP2595221Y2 - Automatic ball valve that can be changed manually - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] The present invention relates to water in various industries,
More particularly, the present invention relates to a ball valve having a structure that can be easily changed to a manual type or an automatic type for use in a pipeline for transporting fluid such as oil, gas, chemicals or food. .

[0002]

2. Description of the Related Art Conventionally, ball valves of a manual type and an automatic type are generally prepared and used depending on the purpose.

In the manual type, the handle is mounted on a spindle supported by the neck of the valve body, and the ball valve is rotated by hand to open and close the valve. In the automatic type, the spindle is rotated by an actuator mounted on the upper portion of the valve body, and the valve is opened and closed in the same manner.

[0004] However, preparing each of the above two types is costly from the viewpoint of productivity, and when changing the manual type ball valve mounted on the piping line to an automatic type ball valve, There was a problem that the ball valve had to be replaced completely. In order to solve this problem, studies have been made to change from a manual type ball valve body to an automatic type by using the ball valve body as it is, and an example thereof is disclosed in Japanese Utility Model Application Laid-Open No. 62-696.
No. 77 discloses this.

The valve disclosed in the above publication has an automatic type in which a manual type (ball) valve body is clamped and fixed from the upper and lower sides of a valve body, and an actuator is mounted on a completed mounting device. It is changed to.

[0006]

However, with the valve disclosed in the above publication, A mounting device must be prepared for each caliber size. 2. The device itself becomes large. 3. It takes time to mount the mounting device. And so on.

The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide a ball valve having a structure which can be easily changed to a manual type or an automatic type. It is.

[0008]

As a result of various studies, the present inventors have utilized the body of a manually operated ball valve and focused on the neck of the body that supports the spindle. It was found that the above problem could be solved and led to the present invention.

The ball valve of the present invention is characterized in that it has a structure that can be easily changed to a manual type or an automatic type.

That is, according to the present invention, the ball valve body engaged with the spindle is rotated by the rotation of the spindle,
In automatic ball valve capable of changing the fixed body to removably mount the manual to the body neck portion that support the spindle for fixing the actuator mount, the present
At the upper end of the torso, a stopper for turning the handle and
Semicircular arc acting to prevent rotation of the actuator
A semi-circular arc around the neck of the main body.
Parallel to Jo projections axially disposed portions arcuate projections for engagement, the body neck the the fixed body of the semi-circular protrusion
An inner peripheral surface providing the cutout portion corresponding to the engaging projection of the body neck can be changed to manual to be characterized by the automatic ball valve body neck through hole along with providing the through hole for It is.

The internal structure of the ball valve of the present invention is not particularly limited, as long as it is normally implemented. Also, the material is not particularly limited, and may be any of various metals, various plastics, and fiber-reinforced plastics.

[0012]

When the actuator is mounted on the actuator mounting base having the above-mentioned structure, it functions as an automatic ball valve. On the other hand, after removing the actuator mounting base and the fixed body to which it is fixed from the valve body neck, the handle is attached to the spindle. If it is attached, it functions as a manual ball valve. Thus, the ball valve of the present invention has a function that can be easily changed to a manual type or an automatic type.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiment drawings, but it goes without saying that the present invention is not limited to the embodiment.

FIG. 1 is a longitudinal sectional view of a one-sided union type ball valve made of a vinyl chloride resin showing one embodiment of the present invention, and FIG. 2 is a perspective view thereof. 3 and 4 are exploded perspective views.

1 to 4, reference numeral 1 denotes a ball valve body. Numeral 2 denotes a main body neck provided at the upper center of the main body, and rotatably supports a spindle 4 engaged with a ball valve element 3 arranged inside the main body 1.
The upper end of the body neck 2 has a handle 90 (FIG. 3) 90
Degree rotation stopper or actuator mount 10
A semi-circular projection 5 (FIG. 3) is provided to prevent rotation of the projection. Also, the front part of the body neck 2 is
A partially arcuate engagement projection 6 is arranged in parallel with the projection 5 in the axial direction.
(FIG. 3) is provided. Reference numeral 7 denotes a plate-like fixed body fitted to the main body neck 2. Through hole 8 of the body neck 2 in the central portion of the fixed body 7 (FIG. 4) is provided, further through
A concave portion 9 (FIG. 4) of a partially arcuate shape corresponding to the engaging protrusion 6 is provided in the diameter direction of the hole 8 .

A method of attaching the plate-like fixed body 7 to the main body neck portion 2 will be described with reference to FIGS. First, both cutouts 9 provided in the through holes 8 of the plate-shaped fixed body 7 are fitted with both engagement projections 6 of the main body neck 2 (the state of FIG. 5), and further down to below the engagement projections 6. It may be pushed down and then rotated 90 degrees. (State of FIG. 6)

Therefore, it is necessary to provide a space below the engaging projection 6 provided on the main body neck 2 at least as large as the thickness of the plate-shaped fixing body 7. To remove the plate-like fixed body 7 from the main body neck portion 2, the above operation may be reversed.

[0018]

The actuator mounting base 10 is fixed to the plate-shaped fixing body 7 with bolts and nuts, and is fitted to the main body neck 2. A through hole 11 is provided at the center to be fitted with the main body neck 2, and the bottom of the through hole 11 is enlarged in diameter to engage with the engaging projection 6. (See Fig. 8)
On the inner peripheral surface of the through-hole 11, a semi-circular radially protruding portion 12 is provided at a position facing the semi-circular projection 5 of the main body neck 2, and an actuator mounting portion is attached to the main body neck 2. When the base 10 is fitted, the protrusion 5 and the protrusion 12
Are joined to form a circle. Therefore, the rotation of the actuator mount 10 is prevented by the projections 5 and the projections 12.

[0020] Incidentally, if the method of fixing the actuator mount 10 is a removable manner, either well, the
The method is not limited to the method using bolts and nuts .

Hereinafter, the operation of the ball valve of this embodiment will be described. In the state of FIGS. 1 and 2, the actuator mounting base 10 is removed from the plate-shaped fixed body 7 by removing the bolt and nut, and then the plate-shaped fixed body 7 is rotated by 90 degrees, and the partial arc-shaped part is rotated. When the notch 9 is fitted into the partially arcuate engaging projection 6 provided on the main body neck portion 2 and pulled out and removed upward, only the ball valve main body 1 is obtained. Next, the handle 1 is attached to the spindle 4 of the main body 1.
3 (see FIG. 3), it becomes a manual type ball valve.

On the other hand, in the state shown in FIGS. 1 and 2, a through hole 11 provided in the center of the actuator mount 10 is provided.
Then, a connector 15 for connecting the spindle 4 and the actuator 14 is fitted therein, and the actuator 14 is fixed to the mounting base 10 with bolts and nuts (see FIG. 4), whereby an automatic ball valve is formed.

As described above, the ball valve of the present embodiment can be easily changed to a manual type or an automatic type, so that it can be freely switched to a manual type or an automatic type according to the purpose of use. be able to.

[0024]

As described above, the following effects can be obtained by using the ball valve of the present invention.

1. The automatic type can be obtained by attaching the actuator to the ball valve of the present invention, and the manual type can be obtained by removing the actuator mount and the fixed body and attaching the handle. Therefore, it is possible to freely and easily switch to a manual type or an automatic type according to the purpose of use. 2. If the outer diameter of the neck of the ball valve body is set to be the same for each diameter, the fixed body and the actuator mounting base need only be set to one size, which is extremely efficient in terms of productivity and other factors. Get better. 3. Since the equipment is compact, switching to the automatic type does not require a large scale. 4. Since the fixed body and the actuator mounting base can be easily attached and detached, the time is short and the efficiency is good.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a ball valve showing one embodiment of the present invention.

FIG. 2 is a perspective view of the ball valve of FIG. 1;

FIG. 3 is an exploded perspective view showing a manual type ball valve body and a handle.

FIG. 4 is an exploded perspective view of an automatic type using the ball valve of FIG. 1;

FIG. 5 is a main part plan view showing a state in which the fixed body is fitted to an engagement protrusion of the main body neck.

6 is a main part plan view showing a state where the fixed body (plate shape) is rotated by 90 degrees from the state of FIG. 5 and the fixed body is engaged with the neck of the main body.

FIG. 7 is a plan view of the actuator mount of FIG. 1;

FIG. 8 is a bottom view of the actuator mount of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Ball valve main body 2 ... Main body neck part 3 ... Ball valve body 4 ... Spindle 5 ... Projection 6 ... Engagement projection 7 ... Fixed body 8 ... Through hole 9 ... Notch 10 ... Actuator mounting base 11 ... Through hole 12 ... Projection Part 13: Handle 14: Actuator 15: Connection body

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16K 5/06 F16K 31/04-31/05 F16K 31/06 305

Claims (1)

(57) [Scope of request for utility model registration] A ball valve body engaged with the spindle is rotated by rotation of the spindle, and a fixed body for fixing an actuator mounting base is detachably attached to a body neck supporting the spindle. In addition, in an automatic ball valve that can be changed to a manual type, the upper end portion of the main body neck portion
There is a stopper for turning the handle and an actuator
A semi-circular projection that prevents rotation of the mounting base is provided.
Further, the semicircular projection and the axial
A partially arcuate engagement projection is provided in parallel to the direction, and the fixed body is provided with a through hole for the semicircular projection on the body neck, and on the inner peripheral surface of the through hole of the body neck. An automatic ball valve which can be changed to a manual type, wherein a cutout portion corresponding to the engagement projection on the neck of the main body is provided.