A three-thread tee structure

Abstract

This utility model relates to the field of three-way valves and discloses a three-thread three-way structure, including a three-way valve body. A ball-shaped cover is fixedly connected to the inner wall of the three-way valve body. A ball-shaped body is fixedly connected to the inner wall of the ball-shaped cover. A sealing ring is provided on the outer wall of the ball-shaped body. A ball is rotatably connected to the inner wall of the ball. A metal square rod is fixedly connected to the inner wall of the ball. A connecting flange is fitted onto the outer wall of the metal square rod. A pressure sleeve is provided at the bottom of the connecting flange. The connecting flange is detachably connected to the three-way valve body by screws. An O-ring is provided at the bottom of the pressure sleeve, and the outer surface of the O-ring is in contact with the inner wall of the three-way valve body. In this utility model, by providing an O-ring and a sealing ring, a firm connection between the sealing ring and the ball is ensured, improving the valve's sealing performance and pressure resistance, and enhancing the sealing performance at the interface during valve opening and closing.

Description

Technical Field

[0001] This utility model relates to the field of three-way valves, and more particularly to a three-thread three-way valve structure. Background Technology

[0002] A three-way valve is a valve with three channels, mainly used to control the flow direction of fluid in a pipeline system. It can change the flow path by rotating the ball or valve core inside the valve body, thereby achieving different functions such as reversing, diverting, or merging.

[0003] To ensure the sealing of gas and fluid transmission, a sealing ring is usually installed on a three-way valve. The sealing ring is generally installed on the valve seat. When the valve is closed, the valve ball presses against the sealing ring to form a sealed environment and prevent media leakage.

[0004] In existing technologies, the sealing ring is fixed on the valve seat. Generally, the sealing ring is secured by nuts and other fasteners to ensure a tight fit. However, during installation, the sealing ring may shift, leading to a reduction in the sealing performance. Furthermore, the lack of continuous pressure reduces the fit between the sealing ring and the contact surface, thus decreasing the sealing performance. To address these issues, a three-thread tee structure is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a three-thread tee structure, which aims to improve the existing three-thread tee structure by avoiding the conventional method of installing the sealing ring with screws while providing continuous pressure to the sealing ring, thereby improving the sealing degree between the sealing ring and the contact surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a three-thread tee structure, comprising a tee valve body, a ball cover fixedly connected to the inner wall of the tee valve body, a ball body fixedly connected to the inner wall of the ball cover, a sealing ring provided on the outer wall of the ball body, a ball rotatably connected to the inner wall of the ball body, a metal square rod fixedly connected to the inner wall of the ball, a connecting flange sleeved on the outer wall of the metal square rod, and a pressure sleeve provided at the bottom of the connecting flange.

[0007] As a further description of the above technical solution:

[0008] The connecting flange is detachably connected to the three-way valve body by screws.

[0009] As a further description of the above technical solution:

[0010] An O-ring is provided at the bottom of the pressure sleeve.

[0011] As a further description of the above technical solution:

[0012] The outer surface of the O-ring seal is in contact with the inner wall of the three-way valve body, and the inner surface of the O-ring seal is in contact with the outer wall of the ball.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the pressure sleeve is fitted to the inner wall of the three-way valve body.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the sealing ring is in contact with the surface of the ball bag cover, and the inner wall of the sealing ring is in contact with the outer wall of the ball bag body.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the three-way valve body is detachably connected to a pressure cap by screws.

[0019] As a further description of the above technical solution:

[0020] The surface of the three-way valve body is provided with a threaded interface.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting O-rings and sealing rings at the two outlet connections of the ball and ultrasonically welding them with the ball, and increasing the tightness of the sealing rings with the pressure sleeve, a firm connection between the sealing rings and the ball can be ensured, thereby improving the sealing performance and pressure resistance of the valve and enhancing the sealing performance at the interface during the valve's opening and closing process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of the main body of the three-thread tee structure proposed in this utility model;

[0024] Figure 2 This is a cross-sectional schematic diagram of the main structure of a three-thread tee structure proposed in this utility model.

[0025] Legend:

[0026] 1. Metal square rod; 2. Connecting flange; 3. Pressure sleeve; 4. O-ring seal; 5. Ball; 6. Ball body; 7. Sealing ring; 8. Ball cover; 9. Three-way valve body; 10. Threaded interface; 11. Pressure cap. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-2 One embodiment of this utility model is a three-threaded tee structure, including a tee valve body 9, a ball cover 8 fixedly connected to the inner wall of the tee valve body 9, a ball body 6 fixedly connected to the inner wall of the ball cover 8, a sealing ring 7 provided on the outer wall of the ball body 6, a ball 5 rotatably connected to the inner wall of the ball body 6, a metal square rod 1 fixedly connected to the inner wall of the ball 5, the metal square rod 1 can control the rotation of the ball 5 to realize the transmission of gas or fluid, a connecting flange 2 is sleeved on the outer wall of the metal square rod 1, and a pressure sleeve 3 is provided at the bottom of the connecting flange 2.

[0029] Reference Figures 1-2 The connecting flange 2 is detachably connected to the three-way valve body 9 by screws. The bottom of the pressure sleeve 3 is provided with an O-ring seal 4. The outer surface of the O-ring seal 4 is in contact with the inner wall of the three-way valve body 9, and the inner surface of the O-ring seal 4 is in contact with the outer wall of the ball 5. The outer wall of the pressure sleeve 3 is in contact with the inner wall of the three-way valve body 9. The outer wall of the sealing ring 7 is in contact with the surface of the ball cover 8, and the inner wall of the sealing ring 7 is in contact with the outer wall of the ball body 6. The O-ring seal 4 and the sealing ring 7 are located at the upper and lower ends of the ball 5 respectively to ensure sealing.

[0030] Reference Figures 1-2 The outer wall of the three-way valve body 9 is detachably connected to a pressure cap 11 by screws. The surface of the three-way valve body 9 is provided with a threaded interface 10. There are two sets of threaded interfaces 10, and the two sets of threaded interfaces 10 are mirror images of each other with the central axis of the three-way valve body 9 as the axis of symmetry.

[0031] Working principle: Sealing rings 7 and O-rings 4 are placed at the interface connections at both ends of the ball 5. The sealing rings 7 and O-rings 4 are ultrasonically welded to the ball 5, i.e., one-time injection molding technology. The ball 5 is made of reinforced polypropylene, which increases impact and high temperature resistance compared to the original UPVC material. The rotation of the ball 5 is controlled by the metal square rod 1 to realize the opening and closing of the three-way valve body 9, and to transmit gas and liquid. When the ball 5 rotates, it will contact the inner wall of the sealing rings 7 and O-rings 4. Since the sealing rings 7 and O-rings 4 are made of high temperature resistant, corrosion resistant and wear resistant materials, such as rubber and polytetrafluoroethylene, the rotation of the ball 5 can effectively prevent fluid or gas leakage, so as to ensure the sealing of the interface during the valve opening and closing process and extend the service life of the valve.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-start tee structure, characterized by: The device includes a three-way valve body (9), with a ball cover (8) fixedly connected to the inner wall of the three-way valve body (9), a ball body (6) fixedly connected to the inner wall of the ball cover (8), a sealing ring (7) provided on the outer wall of the ball body (6), a ball (5) rotatably connected to the inner wall of the ball body (6), a metal square rod (1) fixedly connected to the inner wall of the ball (5), a connecting flange (2) sleeved on the outer wall of the metal square rod (1), and a pressure sleeve (3) provided at the bottom of the connecting flange (2).

2. The three-thread tee structure according to claim 1, characterized in that: The connecting flange (2) is detachably connected to the three-way valve body (9) by screws.

3. The three-thread tee structure according to claim 1, characterized in that: The bottom of the pressure sleeve (3) is provided with an O-ring (4).

4. A three-thread tee structure according to claim 3, characterized in that: The outer surface of the O-ring (4) is in contact with the inner wall of the three-way valve body (9), and the inner surface of the O-ring (4) is in contact with the outer wall of the ball (5).

5. A three-thread tee structure according to claim 1, characterized in that: The outer wall of the pressure sleeve (3) is in contact with the inner wall of the three-way valve body (9).

6. A three-thread tee structure according to claim 1, characterized in that: The outer wall of the sealing ring (7) is in contact with the surface of the ball bag cover (8), and the inner wall of the sealing ring (7) is in contact with the outer wall of the ball bag body (6).

7. A three-thread tee structure according to claim 1, characterized in that: The outer wall of the three-way valve body (9) is detachably connected to a pressure cap (11) by screws.

8. A three-thread tee structure according to claim 1, characterized in that: The surface of the three-way valve body (9) is provided with a threaded interface (10).

Images