CN206093044U - A device for pressure fluid flow direction automatic switch -over - Google Patents

Abstract

The three-way valve used to limit the flow of fluid includes a valve body, a first port is provided on the upper end of the valve body, a second port is provided on the side of the valve body, a third port is provided on the lower end of the valve body, and a There is an arc-shaped channel connecting the second interface and the third interface, the first interface communicates with the arc-shaped channel through a plurality of flow holes, a rolling ball is arranged in the arc-shaped channel, and the first interface, the second A first connecting pipe, a second connecting pipe and a third connecting pipe are respectively installed on the interface and the third connecting piece, a third ring is arranged between the third connecting piece and the third connecting piece, and a The inner hole diameters of the second ring, the third ring and the second ring are smaller than the diameter of the sphere.

Description

Device for automatic switching of pressure fluid flow direction

technical field

The utility model relates to a valve, in particular to a three-way valve for restricting fluid flow.

Background technique

In the process of liquid flow, there is often a need to change the flow direction, so various valve bodies emerge, including manual valves, solenoid valves, one-way valves, etc. It is often necessary to use multiple valves together to restrict the flow direction of the fluid. As a result, the piping system is too complicated and difficult to maintain.

Contents of the invention

The technical problem to be solved by the utility model is to provide a three-way valve for restricting the flow direction of the fluid, which can restrict the flow direction of the fluid and simplify the pipeline system.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a three-way valve for restricting fluid flow, including a valve body, a first interface is provided on the upper end surface of the valve body, and a second interface is provided on the side of the valve body. The lower end surface of the valve body is provided with a third interface, and an arc-shaped channel connecting the second interface and the third interface is provided in the valve body. The first interface communicates with the arc-shaped channel through a plurality of flow holes. A rolling ball, the first connection, the second connection and the third connection are respectively installed on the first connection, the second connection and the third connection, and a third ring is arranged between the third connection and the third connection A second ring is provided between the second interface and the second connecting pipe, and the diameters of the inner holes of the third ring and the second ring are smaller than the diameter of the sphere.

An inner chamfer is provided on the end of the third ring and the second ring facing the valve body.

The ball is made of soft rubber.

Both the third ring and the second ring are made of rubber.

The beneficial effects of the utility model are: the utility model can limit the flow direction of the fluid, simplifies the pipeline system, reduces the maintenance probability of the valve, and reduces the cost of the enterprise.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the exploded schematic diagram of the utility model,

Fig. 2 is a schematic cross-sectional view of the utility model,

Fig. 3 is the structural representation of the utility model when in use,

Fig. 4 is the structural representation of the utility model when in use,

Fig. 5 is a schematic front view of the installation of the existing valve in the following specific embodiments.

In the figure: first port 1, second port 2, third port 3, valve body 4, ball 5, first connecting pipe 11, second connecting pipe 21, second ring 22, third connecting pipe 31, third ring Circle 32, arc channel 41.

detailed description

As shown in Figures 1 and 2, the three-way valve for restricting fluid flow includes a valve body 4, a first interface 1 is provided on the upper end surface of the valve body 4, and a second interface 2 is provided on the side of the valve body 4. The lower end surface of the body 4 is provided with a third interface 3, and an arc-shaped channel 41 connecting the second interface 2 and the third interface 3 is provided in the valve body 4, and the first interface 1 passes through a plurality of flow holes 42 and the arc-shaped channel 41 In communication, a rollable ball 5 is provided in the arc channel 41, and the first joint 11, the second joint 21 and the third joint are respectively installed on the first joint 1, the second joint 2 and the third joint 3 31, a third ring 32 is provided between the third interface 3 and the third connecting pipe 31, a second ring 22 is provided between the second interface 2 and the second connecting pipe 21, the third ring 32 and the second The diameter of the inner hole of the ring 22 is smaller than the diameter of the ball 5 .

An inner chamfer is provided on the end of the third ring 32 and the second ring 22 facing the valve body 4 . The chamfering can form a surface contact between the third ring 32 and the ball 5, thereby reducing the wear of the ball 5 and improving the sealing performance.

The ball 5 is made of soft rubber, and the third ring 32 and the second ring 22 are both made of rubber, and the rubber material is relatively soft, which can improve the sealing performance of the valve.

Below in conjunction with accompanying drawing, the working principle seat of the present utility model is further described:

As shown in Figure 3, A, B, and C in Figure 3 represent pool A, pool B, and pool C respectively, and pool A, pool B, and pool C are respectively connected to the first port 1, the second port 2, and the second port of the valve. Three interfaces 3, water pumps are installed on the pipes connecting pool B and pool C to this valve, when the water pump on pool B is turned on, the water will push the ball 5 to press on the third ring 32, so that pool C and pool C are connected to each other. Close between this valve, at this moment water flow can enter in A pool through arc passage 41 and flow hole 42, is that A pool communicates while, restricts current and enters C pool.

As shown in Figure 4, when the water pump on the C pool is turned on, the water will push the ball 5 to press on the second ring 22, so that the valve between the B pool and the valve is closed, the C pool and the A pool are connected, and the water flow It can enter the A pool and restrict the water flow into the B pool.

As shown in Figure 5, in the existing valve installation, in order to realize the above functions, a one-way valve will be installed on the pipelines of the B pool and the C pool respectively, and the utility model can replace the two one-way valves in Figure 5 Therefore, the utility model can simplify the pipeline system, reduce the maintenance probability of the valve, and reduce the cost of the enterprise.

Claims (4)

1. A three-way valve for restricting fluid flow, characterized in that it includes a valve body (4), a first interface (1) is provided on the upper surface of the valve body (4), and a second port is provided on the side of the valve body (4). Two ports (2), a third port (3) is provided on the lower surface of the valve body (4), and an arc-shaped channel connecting the second port (2) and the third port (3) is provided in the valve body (4) (41), the first interface (1) communicates with the arc channel (41) through a plurality of flow holes (42), and a rolling ball (5) is arranged in the arc channel (41). The first connection (11), the second connection (21) and the third connection (31) are respectively installed on the first connection (1), the second connection (2) and the third connection (3), and the third connection (3) ) and the third connecting pipe (31) is provided with a third ring (32), between the second interface (2) and the second connecting pipe (21) is provided with a second ring (22), the third ring (32) and the inner diameter of the second ring (22) are less than the diameter of the ball (5). 2. The three-way valve for restricting fluid flow according to claim 1, characterized in that: there is an inner valve at the end of the third ring (32) and the second ring (22) facing the valve body (4). Chamfer. 3. The three-way valve for restricting fluid flow according to claim 1, characterized in that: the ball (5) is made of soft rubber. 4. The three-way valve for restricting fluid flow according to claim 1, characterized in that: both the third ring (32) and the second ring (22) are made of rubber.