Irrigation three-way ball valve with good sealing performance

Abstract

The utility model discloses an irrigation three-way ball valve with good sealing performance. The irrigation three-way ball valve comprises a valve body, a valve element located in the valve body and a valve rod connected with the valve element. The valve body comprises a water inlet end and two water outlet ends, the two water outlet ends are respectively a first water outlet end and a second water outlet end, and a first sealing ring is arranged between the valve body at the first water outlet end and the valve core; a sealing locking piece is arranged between the valve body at the second water outlet end and the valve element, and a second sealing ring is arranged between one end of the sealing locking piece and the valve body and between one end of the sealing locking piece and the valve element. The three-way ball valve for irrigation has the advantages of being good in sealing performance, convenient to operate, long in service life and the like, and is suitable for large-scale irrigation and special irrigation scenes such as high pressure and high and low temperature.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and in particular relates to a three-way ball valve for irrigation with good sealing performance. Background Art

[0002] In agricultural irrigation systems, ball valves are commonly used to control water flow. Traditional ball valves have several drawbacks, including poor sealing, inconvenient operation, and a short service life. These issues are particularly pronounced in high-pressure and low-temperature environments. Therefore, designing a ball valve with a simple structure, excellent sealing performance, and convenient operation is crucial. Utility Model Content

[0003] The purpose of the utility model is to provide a three-way ball valve for irrigation with good sealing performance in order to solve the deficiencies of the prior art.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A three-way ball valve for irrigation with good sealing performance comprises a valve body, a valve core located in the valve body, and a valve stem connected to the valve core; the valve body comprises a water inlet end and two water outlet ends, the two water outlet ends being a first water outlet end and a second water outlet end,

[0006] A first sealing ring is provided between the valve body and the valve core at the first water outlet end; a sealing locking piece is provided between the valve body and the valve core at the second water outlet end, and a second sealing ring is provided between one end of the sealing locking piece and the valve body and the valve core.

[0007] Preferably, the three-way ball valve for irrigation with good sealing performance as described above further includes a first water pipe connecting pipe;

[0008] The inner side of the valve body at the first water outlet end is provided with a first internal thread, and the first water pipe connecting pipe is provided with a first external thread matching the first internal thread;

[0009] The first water pipe connecting pipe is connected to the first water outlet end through the first external thread and the first internal thread.

[0010] Preferably, the sealing locking member comprises a water pipe connecting section, a valve body connecting section and an extrusion sealing section in sequence along the axial direction; the extrusion sealing section forms an extrusion seal on the valve body and the valve core by extruding the second sealing ring;

[0011] The outer side of the valve body connecting section is provided with a second external thread, and the inner side of the valve body is provided with a second internal thread matching the second external thread;

[0012] The inner side of the water pipe connecting section is provided with a third internal thread for connecting to a water pipe connecting pipe having a third external thread matching the third internal thread;

[0013] A stop plate is provided between the valve body connecting section and the water pipe connecting section.

[0014] Preferably, the inner side of the valve body connecting section is also provided with the third internal thread.

[0015] Preferably, the three-way ball valve for irrigation with good sealing performance as described above further includes a second water pipe connecting pipe;

[0016] The second water pipe connecting pipe is provided with the third external thread matching the third internal thread;

[0017] The second water pipe connecting pipe is connected to the sealing locking member through the third external thread and the third internal thread.

[0018] Preferably, the valve core ball is an L-shaped or T-shaped structure.

[0019] Preferably, the three-way ball valve for irrigation with good sealing performance as described above further includes a water outlet pile connecting pipe connected to the water inlet end.

[0020] Preferably, a sealing gasket is provided between the valve body at the water inlet end and the water outlet pile connecting pipe.

[0021] Preferably, a sealing structure is provided between the valve stem and the valve body.

[0022] The three-way ball valve for irrigation provided in this application has the advantages of good sealing performance, easy operation, and long service life. It is suitable for large-scale irrigation and special irrigation scenarios such as high pressure, high and low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-way structure of the irrigation three-way ball valve provided by the present application;

[0024] Figure 2 This is a schematic diagram of the main structure of the three-way ball valve for irrigation provided by this application;

[0025] Figure 3 This is a schematic diagram of the exploded structure of the three-way ball valve for irrigation provided by this application;

[0026] Figure 4 This is a schematic diagram of the top view of the three-way ball valve for irrigation provided by this application;

[0027] Figure 5 yes Figure 4 Schematic diagram of the EE cross-section structure.

[0028] Description of reference numerals:

[0029] 10 - valve body; 11 - water inlet; 12 - first water outlet; 13 - second water outlet; 20 - valve core; 30 - valve stem; 40 - sealing and locking member; 41 - water pipe connecting section; 42 - valve body connecting section; 43 - extrusion sealing section; 44 - stop plate; 50 - first water pipe connecting pipe; 60 - second water pipe connecting pipe; 70 - water outlet pile connecting pipe; 81 - first sealing ring; 82 - second sealing ring; 83 - sealing gasket; DETAILED DESCRIPTION

[0030] The three-way ball valve for irrigation with good sealing performance provided by this application is as follows: Figures 1 to 5 As shown, the valve comprises a valve body 10, a valve core 20 located within the valve body, and a valve stem 30 connected to the valve core 20. The valve body 10 includes a water inlet 11 and two water outlets, namely a first water outlet 12 and a second water outlet 13. The valve core 20 and valve stem 30 can be of conventional construction. As those skilled in the art will appreciate, the valve core sphere is provided with a through hole, and the valve stem passes through the top of the valve body. By rotating the valve stem, the valve core is rotated, thereby controlling the flow of water. The valve core sphere preferably adopts an L-shaped or T-shaped structure, which is suitable for most irrigation scenarios.

[0031] The sealing performance between various components of a ball valve seriously affects its normal operation, especially between the valve core and the valve body. In the existing technology, three-way ball valves are generally equipped with removable valve seats at both ends of the valve body to form an extrusion seal on the valve core. However, due to the spherical shape of the valve core, the balance of the valve core must be considered. When using valve seats at both ends for extrusion sealing, the balance of force at both ends is difficult to achieve, resulting in installation difficulties and easily causing the valve core ball to become unbalanced, thereby affecting the sealing and normal rotation of the valve core, causing the ball valve to malfunction. When the irrigation area is large, many ball valves are required, and the installation difficulties seriously affect irrigation efficiency.

[0032] Based on the above technical issues, the present application provides a first sealing ring 81 between the valve body 10 and the valve core 20 at the first water outlet 12. Preferably, the first sealing ring 81 is fixed to the valve body 10, effectively sealing the valve body at the first water outlet and the valve core on that side. A sealing locking member 40 is provided between the valve body 10 and the valve core 20 at the second water outlet 13. A second sealing ring 82 is provided between one end of the sealing locking member 40 and the valve body 10 and valve core 20. The sealing locking member 40 squeezes the second sealing ring 82 to effectively seal the valve body and valve core on that side.

[0033] Therefore, the present application only uses a detachable sealing locking member, which not only facilitates the installation of the valve core, but also reduces the two influencing variables when sealing the two sides of the valve core to one variable, thereby enhancing the controllability of the product. Specifically, the valve core ball is first placed in the valve body, and the first water outlet end and one side of the valve core ball are fixed and sealed by the first sealing ring, and then the sealing locking member is connected. Since one side of the valve core ball is already fixed, it is easy to find a balance point when applying force to screw the sealing locking member into the valve body to squeeze the second sealing ring, so that the valve core ball remains in a stable state, forming an effective seal on the valve core ball, and improving the use effect of the ball valve. When the sealing locking member is screwed into the valve body to squeeze the second sealing ring, since the second sealing ring and the first sealing ring are in the same horizontal direction, the first sealing ring will also be subjected to the squeezing force of the sealing locking member, thereby ensuring the sealing effect of the water outlets at both ends. Since the seal on one side of the valve core is already fixed, it is sufficient to apply a fixed force when squeezing the seal with the sealing locking member, which makes the sealing locking member easy to install and improves the installation efficiency.

[0034] This application uses a removable sealing locking member to reduce sealing risks, improve the stability of the valve core ball and the efficiency of ball valve installation, ensure the uniformity of installation, and further improve irrigation efficiency. Therefore, the three-way ball valve for irrigation provided by this application has the advantages of good sealing performance, easy operation, and long service life. It is suitable for large-scale irrigation and special irrigation scenarios such as high pressure, high temperature and low temperature.

[0035] Preferably, the ball valve provided in the present application further includes a first water pipe connecting pipe 50, through which the ball valve can be conveniently connected to an irrigation water pipe, thereby improving usage efficiency.

[0036] The valve body 10 at the first water outlet 12 has a first internal thread on its inner side, and the first water pipe connecting pipe 50 has a first external thread that mates with the first internal thread. The first water pipe connecting pipe 50 is connected to the first water outlet 12 via the first external thread and the first internal thread. The threaded connection facilitates installation and removal of the first water pipe connecting pipe 50.

[0037] Preferably, the sealing and locking member 40 comprises, in axial order, a water pipe connection section 41, a valve body connection section 42, and an extrusion seal section 43. A second sealing ring 82 is sleeved over the extrusion seal section 43, forming an extrusion seal between the valve body and valve core. The exterior of the valve body connection section 42 is provided with a second external thread, while the interior of the valve body is provided with a second internal thread that mates with the second external thread. The interior of the water pipe connection section 41 is provided with a third internal thread for connection to a water pipe connection tube having a third external thread that mates with the third internal thread. A stop plate 44 is provided between the valve body connection section 42 and the water pipe connection section 41.

[0038] The sealing locking member 40 and the valve body 10 as a whole are connected by a second external thread and a second internal thread. When the sealing locking member is screwed into the valve body along the thread direction, the extrusion sealing section at the front end squeezes the second sealing ring between the valve body and the valve core, thereby forming an effective extrusion seal on the valve body and the valve core on that side. One end of the stop plate 44 is used to abut against the outer end surface of the valve body to limit the sealing locking member 40. The water pipe connecting section 41 on the left can be connected to the second water pipe connecting pipe 60 by threading. The outer side of the second water pipe connecting pipe 60 is provided with a third external thread that matches the third internal thread. The second water pipe connecting pipe 60 is connected to the sealing locking member 40 by the third external thread and the third internal thread. At the same time, the other end of the stop plate 44 is used to limit the second water pipe connecting pipe 60.

[0039] Preferably, a third internal thread is also provided on the inner side of the valve body connecting section 42 , which can extend the threaded connection length and strengthen the connection with the second water pipe connecting pipe 60 .

[0040] Preferably, the ball valve provided in the present application further includes a water outlet pile connecting pipe 70 connected to the water inlet end 11, thereby facilitating connection with the water outlet pile and improving the use efficiency of the ball valve.

[0041] To prevent water leakage and ensure the sealing performance of the ball valve, a sealing gasket 83 is provided between the valve body at the water inlet end 11 and the water outlet pile connecting pipe 70. A sealing structure, such as a sealing ring, is also provided between the valve stem and the valve body.

[0042] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

Claims

1. A three-way ball valve for irrigation with good sealing performance, comprising a valve body, a valve core located in the valve body, and a valve stem connected to the valve core; the valve body comprises a water inlet end and two water outlet ends, the two water outlet ends being a first water outlet end and a second water outlet end, characterized in that: A first sealing ring is provided between the valve body and the valve core at the first water outlet end; a sealing locking piece is provided between the valve body and the valve core at the second water outlet end, and a second sealing ring is provided between one end of the sealing locking piece and the valve body and the valve core.

2. The three-way ball valve for irrigation with good sealing performance according to claim 1, characterized in that: Also includes a first water pipe connecting pipe; The inner side of the valve body at the first water outlet end is provided with a first internal thread, and the first water pipe connecting pipe is provided with a first external thread matching the first internal thread; The first water pipe connecting pipe is connected to the first water outlet end through the first external thread and the first internal thread.

3. The three-way ball valve for irrigation with good sealing performance according to claim 1, characterized in that: The sealing locking member includes a water pipe connecting section, a valve body connecting section and an extrusion sealing section in sequence along the axial direction; the extrusion sealing section forms an extrusion seal between the valve body and the valve core by squeezing the second sealing ring; The outer side of the valve body connecting section is provided with a second external thread, and the inner side of the valve body is provided with a second internal thread matching the second external thread; The inner side of the water pipe connecting section is provided with a third internal thread for connecting to a water pipe connecting pipe having a third external thread matching the third internal thread; A stop plate is provided between the valve body connecting section and the water pipe connecting section.

4. The three-way ball valve for irrigation with good sealing performance as claimed in claim 3, characterized in that: The inner side of the valve body connecting section is also provided with the third internal thread.

5. The three-way ball valve for irrigation with good sealing performance as claimed in claim 3, characterized in that: Also includes a second water pipe connecting pipe; The second water pipe connecting pipe is provided with the third external thread matching the third internal thread; The second water pipe connecting pipe is connected to the sealing locking member through the third external thread and the third internal thread.

6. The three-way ball valve for irrigation with good sealing performance as claimed in claim 1, characterized in that: The valve core ball is an L-shaped or T-shaped structure.

7. The three-way ball valve for irrigation with good sealing performance as claimed in claim 1, characterized in that: It also includes a water outlet pile connecting pipe connected to the water inlet end.

8. The three-way ball valve for irrigation with good sealing performance as claimed in claim 7, characterized in that: A sealing gasket is provided between the valve body at the water inlet end and the water outlet pile connecting pipe.

9. The three-way ball valve for irrigation with good sealing performance as claimed in claim 1, characterized in that: A sealing structure is provided between the valve stem and the valve body.

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