CN204493800U - A kind of one enters three goes out formula four-way reversing globe valve - Google Patents

Abstract

The utility model provides a one-inlet and three-outlet four-way reversing ball valve, which includes a valve body, a valve cover installed on the upper end of the valve body, a valve stem installed inside the valve body and a ball valve core installed on the lower end of the valve stem. , the part of the valve stem passing through the valve cover is fixedly fitted with a handwheel, and a fixing nut is installed on the top of the valve stem. The mouth is installed in the installation hole through the external thread. There is a medium channel in the middle of the ball valve core. The medium channel is composed of a vertical hole and an arc-shaped groove. The diameter of the vertical hole is the same as that of the valve port. The diameters are equal, the thickness of the arc-shaped groove is equal to the diameter of the valve port, the arc angle of the arc-shaped groove is 90°, and the plane where the medium channel is located is perpendicular to the valve stem. The utility model has a simple structure, can realize the function of one valve replacing four valves, and makes the pipeline connection simple in the pipeline flow channel with one inlet and multiple outlets.

Description

A one-inlet three-outlet four-way reversing ball valve

technical field

The utility model relates to a ball valve, in particular to a one-inlet and three-outlet four-way reversing ball valve.

Background technique

The ball valve is mainly used to cut off or connect the medium in the pipeline. Because of its simple operation and small flow resistance, it has been widely used in various fields in recent years. At present, the four-way reversing ball valve used when changing the medium flow channel through the ball valve is the "LL" type reversing valve, that is, by rotating the ball valve spool 90°, the medium flow direction is switched once to realize two in and two out of the flow channel. But in reality, when one inlet is needed and three directions are used as outlets, this valve is not enough to meet the performance. If multiple globe valves are used as valves to cut off the flow, resources will be wasted and the interface will be complicated.

Contents of the invention

The purpose of the utility model is to provide a four-way reversing ball valve with multiple reversing functions and simple structure.

The purpose of this utility model is achieved in the following way: it includes a valve body, a valve cover installed on the upper end of the valve body, a valve stem installed inside the valve body and a ball valve core installed on the lower end of the valve stem, and the valve stem passes through the valve cover The upper part of the fixed sleeve is equipped with a hand wheel, and a fixed nut is installed on the top of the valve stem. The valve body is evenly provided with four installation holes with internal threads along the circumference of the outer surface, and the four valve ports are installed on the mounting holes through external threads. In the hole, there is a medium channel in the middle of the ball valve core, and the medium channel is composed of a vertical hole and an arc-shaped groove. The diameter of the vertical hole is equal to the diameter of the valve port, and the arc-shaped The thickness of the groove is equal to the diameter of the valve port, the arc angle of the arc-shaped groove is 90°, and the plane where the medium channel is located is perpendicular to the valve stem.

The utility model also includes such structural features:

1. Set sealing rings at the contact between the valve body and the valve cover, the contact between the valve cover and the valve stem, and the contact between the valve body and the valve port.

Compared with the prior art, the beneficial effect of the utility model is: the utility model adopts a valve core with a special structural principle, and the rotation of the hand wheel drives the valve core to change direction, so as to realize the conduction and cut-off of one inlet and three outlets of the ball valve respectively. , suitable for pipelines with one inlet and three outlets, that is, only one inlet is needed, and every time the valve core is turned 45°, it can be connected or cut off with the pipelines in the other three directions, and in the pipeline connection, this practical The new type is simple in structure, has more reversing functions, is easy to install and maintain, and can realize the function of one valve instead of four valves. At the same time, in the pipeline flow channel with one inlet and multiple outlets, the pipeline connection can be simplified, and one valve can be used for multiple purposes, saving costs. .

Description of drawings

Fig. 1 is a sectional view of the utility model;

Fig. 2 is a cross-sectional view of the conduction of the a-b flow channel of the present invention;

Fig. 3 is a cross-sectional view of the conduction of the a-c flow channel of the present invention;

Fig. 4 is a conduction sectional view of the a-d flow channel of the present utility model;

Fig. 5 is a cut-off view of the ball valve of the present invention;

Fig. 6 is a sectional view of the ball valve spool of the present invention;

Fig. 7 is a three-dimensional structural schematic diagram of the valve core of the present invention.

Among them: 1 is nut, 2 is washer, 3 is hand wheel, 4 is valve cover, 5 is valve body, 6 is ball valve core, 7 is valve port, 8 is sealing ring 1, 9 is sealing ring 2, 10 is Sealing ring 3,11 is valve stem.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

1 and 2, the utility model includes a valve body 5, a valve cover 4 installed on the upper end of the valve body 5, a valve stem 11 installed inside the valve body 5, and a ball valve core 6 installed on the lower end of the valve stem 11, specifically It is said that the valve stem 11 is reliably connected with the keyway provided on the ball valve spool 6 through the key provided on the bottom end. A fixed nut 1 is installed on the top, specifically, the hand wheel 3 is set on the upper end of the valve stem 11 through a spline to achieve a fixed connection with the valve stem 11, and is fastened together with the washer 2 through the fixed nut 1, when the hand wheel 3 rotates When driving the rotation of the valve stem 11, and then driving the rotation of the ball valve core 6, the valve body 5 is evenly provided with four mounting holes with internal threads along the circumference of the outer surface, and the four valve ports 7, 12, 13 and 14 pass through The external thread is installed in the installation hole, and the middle position of the ball valve spool 6 is provided with a medium passage, and the medium passage is composed of a vertical hole and an arc-shaped groove, and the diameter of the vertical hole is the same as that of the valve port. The diameters are equal, the thickness of the arc-shaped groove is equal to the diameter of the valve port, the arc angle of the arc-shaped groove is 90°, and the plane where the medium channel is located is perpendicular to the valve stem. Sealing rings 10, 9 and 8 are respectively provided at the contact between the valve body 5 and the valve cover 4, the contact between the valve cover 4 and the valve stem 11, and the contact between the valve body 5 and each valve port, that is, the valve body 5 and the valve cover 4 They are connected together by threads, with a sealing ring 10 in the middle, and the sealing ring 9 is sleeved on the valve stem 11. During the tight connection process between the valve cover 4 and the valve body 5 through threads, the sealing ring 9 is squeezed on the shaft of the valve stem 11. On the shoulder, the entire connection not only realizes the sealing of the connection between the valve cover 4 and the valve body 5, but also realizes the tight fit between the valve stem 11 and the ball valve core 6. The four mounting holes set on the valve body 5 are respectively connected with the four valve ports. 7, 12, 13 and 14 are tightly connected together by threads, and a groove is provided at the end of each valve port connected to the valve body 5, and a sealing ring 8 is housed therein.

The ball valve spool 6 of the utility model adopts a special structural principle to realize the one-to-one reversing of the four-channel ball valve. Groove, thereby connects adjacent two valve ports, on the same section of circular arc groove, there is a through hole at the center line as shown in Figure 6 at 135 ° angle, and its aperture size is identical with the diameter of valve port 7.

The flow passage conversion process of the present utility model is: Fig. 2 shows the working position of the ball valve spool 6 when the a-b flow passage is conducted. By turning the handwheel 3, the ball valve reversing is realized. When the a-b flow path is cut off at the working position, the a-c flow path is turned on, and the handwheel 3 is turned again. When the ball valve spool 6 is in the working position shown in Figure 4, the a-c flow path is cut off, and the a-d flow path is turned on. When the handwheel is turned to make the ball valve When the spool 6 was in the working position of Fig. 5, the ball valve was closed.

Claims (2)

1. A one-inlet and three-outlet four-way reversing ball valve, characterized in that it includes a valve body, a valve cover installed on the upper end of the valve body, a valve stem installed inside the valve body and a ball valve core installed on the lower end of the valve stem , the part of the valve stem passing through the valve cover is fixedly fitted with a handwheel, and a fixing nut is installed on the top of the valve stem. The mouth is installed in the installation hole through the external thread. There is a medium channel in the middle of the ball valve core. The medium channel is composed of a vertical hole and an arc-shaped groove. The diameter of the vertical hole is the same as that of the valve port. The diameters are equal, the thickness of the arc-shaped groove is equal to the diameter of the valve port, the arc angle of the arc-shaped groove is 90°, and the plane where the medium channel is located is perpendicular to the valve stem. 2. A one-inlet three-outlet four-way reversing ball valve according to claim 1, characterized in that: at the contact point between the valve body and the bonnet, the contact point between the bonnet and the valve stem, the valve body and each valve port Sealing rings are respectively arranged at the contact points.