CN205298656U - Three -way butterfly valve - Google Patents

Abstract

The utility model discloses a three-way butterfly valve, which comprises a valve body, a valve rod, a valve seat and a valve core. The valve body is connected with pipelines in three directions of left, right and front, and the valve body and the pipeline There is a valve seat between them, and the valve core includes two butterfly plates with the same shape and size and are connected to each other to form a V-shaped structure. The angle between the two butterfly plates is 60°, and the upper and lower ends of the valve core are fixed with rotating There is a circular groove at the position where the valve body is in contact with the rotating disk. The area of the rotating disk is equivalent to the area of the circular groove. The rotating disk rotates in the circular groove, and the valve stem is fixed on the rotating disk at the upper end of the valve body. The butterfly plate is matched with the valve seats in the left and right directions, and is tightly fitted, and the opening of the valve core is facing the forward pipeline. The advantages and positive effects of the utility model are: the utility model is suitable for simple flow control and switching actions, does not need electricity, is simple to make, easy to install, is suitable for various environments without electricity, and has good versatility.

Description

A three-way butterfly valve

technical field

The utility model belongs to the field of butterfly valves, in particular to a three-way butterfly valve.

Background technique

The three-way valve is a control component in the fluid delivery system, which has the functions of cut-off, regulation, flow diversion, backflow prevention, pressure stabilization or overflow. Three-way valves can be used to control the flow of various types of fluids such as air, water, neat, various corrosive media, mud, oil, liquid metal and radioactive media. Most of the three-way valves in the prior art are electromagnetic valves, which are costly to manufacture and need to be energized during use, which limits the use environment.

Contents of the invention

The problem to be solved by the utility model is to provide a three-way butterfly valve, which can solve the above problems.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a three-way butterfly valve, including a valve body, a valve stem, a valve seat and a valve core, and the valve body is connected with valves in the left, right and front directions. Pipeline, and there is a valve seat between the valve body and the pipeline. The valve core includes two butterfly plates with the same shape and size and are connected to each other to form a V-shaped structure. The angle between the two butterfly plates is 60°. The upper and lower ends of the spool are fixed with a rotating disk, and a circular groove is provided at the position where the valve body contacts the rotating disk. The area of the rotating disk is equivalent to the area of the circular groove, and the rotating disk rotates in the circular groove. The rod is fixed on the rotating disk at the upper end of the valve body, the butterfly plate is matched with the valve seats in the left and right directions, and sealed and fitted, and the opening of the valve core is facing the forward pipeline.

Further, the butterfly plate is provided with a rubber pad at the junction with the valve seat.

Further, the upper end of the valve stem is provided with a detachable handle.

The utility model has the advantages and positive effects: the utility model is suitable for simple flow control and switching actions, does not need electricity, is simple to manufacture, easy to install, is suitable for various environments without electricity, and has good versatility.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model creation, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the appearance schematic diagram of the utility model;

Fig. 2 is the front view of described spool and rotating disc;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is a schematic diagram of the disconnected state of the spool;

Fig. 5 is a schematic diagram of the passage state of the spool;

Fig. 6 is a schematic diagram of the passage state of the spool;

Explanation of reference signs:

1-valve body; 2-valve stem; 3-detachable handle; 4-rotary disc; 5-butterfly plate.

detailed description

Specific embodiments of the present utility model are described in detail below in conjunction with accompanying drawings.

As shown in Figures 1 to 6, a three-way butterfly valve includes a valve body 1, a valve stem 2, a valve seat, and a valve core. The valve body 1 is connected with pipelines in three directions: left, right, and front, and A valve seat is provided between the valve body 1 and the pipeline. The valve core includes two butterfly plates 5 with the same shape and size and connected to each other, forming a V-shaped structure. The angle β between the two butterfly plates 5 is 60°. The upper and lower ends of the spool are fixed with a rotating disk 4, and a circular groove is provided at the position where the valve body 1 is in contact with the rotating disk 4. The area of the rotating disk 4 is equivalent to the area of the circular groove. The valve stem 2 is fixed on the rotating disk 4 at the upper end of the valve body, and the butterfly plate 5 is matched with the valve seats in the left and right directions, and is sealed and fitted. The opening of the valve core is facing the forward pipeline.

A rubber pad is provided on the butterfly plate 5 at the junction with the valve seat, which can improve the sealing performance between the butterfly plate 5 and the valve seat. The upper end of the valve stem 2 is provided with a detachable handle 3, which can be fixed by screws for easy replacement.

When in use, rotating the detachable handle 3 can drive the spool to rotate. When the opening of the spool is facing the forward pipeline, as shown in Figure 4, it is in an open circuit state; when the opening of the spool points to other directions, As shown in Figures 5 and 6, the channel status allocated for different flows can be adjusted. The turning of the spool is not limited to the state shown in the drawings, and the opening can also be turned to other directions. The dotted lines in Figures 4 to 6 are motion trajectories.

The embodiments of the present utility model have been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (3)

1. a Three-way butterfly valve, it is characterized in that: include valve body (1), valve rod (2), valve seat and spool, described valve body is connected to a left side on (1), right, the pipeline in first three direction, and it is provided with valve seat between valve body (1) and pipeline, spool includes that two geomeries are all identical and interconnective butterfly plate (5), form V-structure, between double butterfly plate (5), angle �� is 60 ��, the two ends up and down of spool are respectively and fixedly provided with rotation dish (4), the position contacted with rotation dish (4) in valve body (1) is provided with circular cell body, the area of rotation dish (4) is suitable with circular trough bulk area, rotation dish (4) rotates in circular trough body, valve rod (2) is fixed on the rotation dish (4) of valve body upper end, the valve seat in butterfly plate (5) and direction, left and right two matches, and seal laminating, the opening part of spool faces the pipeline of forward direction.

2. Three-way butterfly valve according to claim 1, it is characterised in that: described butterfly plate is provided with rubber cushion in the joint with valve seat on (5).

3. Three-way butterfly valve according to claim 1, it is characterised in that: described valve rod (2) upper end is provided with detachable handle (3).