High-stability three-way ball valve

Abstract

The utility model belongs to the technical field of ball valves, and particularly belongs to a high-stability three-way ball valve which comprises a valve body and a valve element, and a first channel, a second channel and a third channel are arranged on the three side faces of the valve body respectively. The valve body is provided with a limiting groove between the first channel and the second channel; a valve element is arranged in the valve body, damping rings are arranged between the valve element and the first channel, the second channel, the third channel and the limiting groove, the limiting groove is additionally formed between the valve body and the valve element, the damping rings are connected between the limiting groove and the valve element in an abutting mode, the valve element can be prevented from deviating in the valve body, and therefore the stability of the three-way ball valve is improved. Four-side sealing is formed on the whole three-way ball valve, the situation that the sealing stability becomes poor due to the fact that the valve element and the valve body deviate can be avoided, and therefore the stability of the sealing effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and particularly belongs to a three-way ball valve with high stability. Background Technique

[0002] The three-way ball valve is one of the most common pipeline valves in ball valves, and is generally applied to the working conditions of switching, reversing, and dividing / converging of liquid media. Especially in the agricultural field, it is widely used in the fields of irrigation and liquid medicine and fertilizer transportation. It has the advantages of small fluid resistance, compact structure, and convenient operation.

[0003] In the existing valve technology, most valves are prone to problems with the gap between the valve body and the valve core after long-term use. As the valve is used for a longer time, the gap between the valve body and the valve core may gradually lose its tight fit due to various factors, such as wear during long-term use. This gap may cause fluid leakage. When there is a gap between the valve body and the valve core, the fluid will flow from the high-pressure side to the low-pressure side through the gap, resulting in a pressure drop and affecting the working efficiency of the valve. At the same time, impurities and particulate matters in the fluid are also likely to enter the gap, further exacerbating the wear between the valve body and the valve core, forming a vicious cycle, thus seriously affecting the working efficiency and safety of the valve. In order to solve the gap problem between the sealing ring and the valve core.

[0004] Since the three-way ball valve is provided with three-sided channels for feeding, the valve core is continuously impacted by the three-sided channel openings, causing the valve core to be continuously squeezed in multiple directions between the non-channel part of the valve body, resulting in the valve core offset and leakage. Content of the Utility Model

[0005] The purpose of the present invention is to provide a three-way ball valve with high stability to solve the sealing problem in the three-way ball valve.

[0006] The technical solution of the utility model: A three-way ball valve with high stability, including a valve body and a valve core. The three sides of the valve body are respectively provided with a first channel, a second channel, and a third channel; a limiting groove is provided between the first channel and the second channel of the valve body; a valve core is arranged inside the valve body, and damping rings are arranged between the valve core and the first channel, the second channel, the third channel, and the limiting groove respectively.

[0007] By providing a limiting groove between the valve body and the valve core, and at the same time abutting a damping ring between the limiting groove and the valve core, it is possible to avoid abrasion caused by extrusion between the valve core and the valve body, thereby ensuring the stability of the sealing effect; this kind of valve avoids rapid wear between the valve core and the valve body, extends the service life of the valve, and at the same time makes it easier to install the valve core into the valve body; damping rings are provided between the valve core and the first channel, the second channel, the third channel and the limiting groove respectively. The damping ring is in contact connection with the valve core and the diameter of the damping ring is adapted to the diameter of the valve port. The damping ring can not only play a role in buffering and damping when the valve core rotates, but also play a role in sealing the material flow port when the valve core is in the open state. When the valve core is in the open state, the material directly flows through the damping ring and then enters the corresponding pipeline, and there will be no situation where the inner side of the joint connecting the valve body interface causes resistance to the material flow, achieving the purpose of saving energy.

[0008] Preferably, the first channel, the second channel, and the third channel are internally connected in a through manner; the valve core is provided with a plurality of through holes, and a groove is provided at the top of the valve core. A valve rod is clamped in the groove, and the valve core is rotated by the valve rod to switch the first channel, the second channel, and the third channel to be unblocked or blocked.

[0009] Preferably, the first channel and the second channel are arranged coaxially opposite to each other, the third channel is vertically arranged between the first channel and the second channel, the second channel is connected to the first main pipe through a thread, and the third channel is connected to the second main pipe through a thread.

[0010] Preferably, the first main pipe and the second main pipe can be conveniently held by the staff for disassembly by externally connecting them through threads, which is convenient for replacing the first main pipe and the second main pipe, eliminating the connection method of using sealant for internal connection and fixing, and will not cause difficulties in maintenance and replacement when the joint is aged and damaged, and is not likely to cause the risk of valve body damage.

[0011] Preferably, a sealing ring is provided between the second channel and the first main pipe; a sealing ring is provided between the third channel and the second main pipe.

[0012] Preferably, a support frame is provided on one side of the valve body; the valve rod penetrates through the support frame, and the valve rod and the support frame are rotatably connected through a bushing. A plurality of gaskets are provided between the bushing and the support frame. An arc-shaped protrusion is provided at the top of the gasket, and an arc-shaped groove corresponding to the arc-shaped protrusion is provided at the bottom of the gasket. The arc-shaped protrusions of the adjacent gaskets are fitted in the arc-shaped grooves.

[0013] Preferably, a raised ring is provided on the valve rod close to the valve core side, and the raised ring is clamped on one side of the valve body; a limiting member is provided between the raised ring and the valve body.

[0014] Preferably, the valve stem includes a head, the head is cylindrical, an external thread is provided on the outside of the head, and the head is fixedly connected to the handle by a thread.

[0015] Preferably, the valve stem includes a head, the head is square, which is convenient for clamping a wrench.

[0016] Preferably, a hexagon is provided on one side of the first main pipe close to the valve body for adjusting the tightness and disassembling and assembling with a wrench.

[0017] Preferably, two cuts are provided on one side of the second main pipe away from the valve body, and the cuts are respectively located on both sides of the second main pipe.

[0018] Compared with the prior art, the present utility model provides a three-way ball valve with high stability, and has at least one of the following beneficial effects:

[0019] 1. A three-way ball valve with high stability is provided. A limit groove is added between the valve body and the valve core. By abutting a damping ring between the limit groove and the valve core, it is possible to prevent the valve core from shifting in the valve body, forming a four-sided seal for the entire three-way ball valve, and avoiding the deterioration of the sealing stability caused by the shift between the valve core and the valve body, thereby ensuring the stability of the sealing effect.

[0020] 2. By fitting the arc-shaped protrusions of adjacent gaskets into the arc-shaped grooves, in an uneven combination manner, the gaskets are more closely fitted to each other, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0022] Figure 1 It is a perspective view in the front view direction of an embodiment of the present utility model.

[0023] Figure 2 It is a perspective view in the rear view direction of an embodiment of the present utility model.

[0024] Figure 3 It is an exploded view of an embodiment of the present utility model.

[0025] Figure 4 It is a sectional view in the front view direction of an embodiment of the present utility model.

[0026] Figure 5 It is a sectional view in the upward view direction of an embodiment of the present utility model.

[0027] Figure 6 It is a perspective view of the valve stem head being square in an embodiment of the present utility model.

[0028] Figure 7 This is a sectional view of the gasket in the embodiment of the present utility model.

[0029] Reference numerals

[0030] 1 - valve body; 11 - first channel; 12 - second channel; 13 - third channel; 14 - limiting groove; 15 - damping ring; 16 - support frame; 2 - valve core; 21 - through hole; 22 - groove; 3 - valve stem; 31 - bushing; 32 - gasket; 321 - arc-shaped protrusion; 322 - arc-shaped groove; 33 - raised ring; 34 - limiting member; 35 - head; 4 - first main through pipe; 41 - sealing ring; 42 - hexagon; 5 - second main through pipe; 51 - notch; 6 - handle Detailed implementation manners

[0031] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0032] Generally, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model.

[0033] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] As Figures 1 to 3 shown, it includes a valve body 1 and a valve core 2. The three sides of the valve body 1 are respectively provided with a first channel 11, a second channel 12, and a third channel 13; a limiting groove 14 is provided between the first channel 11 and the second channel 12 of the valve body 1; a valve core 2 is arranged inside the valve body 1, and damping rings 15 are arranged between the valve core 2 and the first channel 11, the second channel 12, the third channel 13, and the limiting groove 14 respectively. By adding the limiting groove 14 between the valve body 1 and the valve core 2 and abutting the damping ring 15 between the limiting groove 14 and the valve core 2, the valve core 2 can be prevented from shifting in the valve body 1, forming a four-sided seal for the entire three-way ball valve, and avoiding the deterioration of the sealing stability caused by the shift between the valve core 2 and the valve body 1, thereby ensuring the stability of the sealing effect.

[0037] Damping rings 15 are arranged between the valve core 2 and the first channel 11, the second channel 12, the third channel 13, and the limiting groove 14 respectively. The damping rings 15 are in contact connection with the valve core 2 and the diameter of the damping rings 15 is adapted to the diameter of the valve port. The damping rings 15 can not only play a role in buffering and damping when the valve core 2 rotates, but also play a role in sealing the material flow port when the valve core 2 is in the open state. When the valve core 2 is in the open state, the material directly flows through the damping rings and then enters the corresponding pipeline, and there will be no situation where the inner side of the joint connecting to the valve body 1 interface causes resistance to the material flow, achieving the purpose of saving energy.

[0038] As Figures 1 to 5As shown, a through connection is formed among the interiors of the first channel 11, the second channel 12, and the third channel 13; the valve core 2 is provided with a plurality of through holes 21, and a groove 22 is provided at the top of the valve core 2. A valve rod 3 is clamped in the groove 22. By rotating the valve core 2 through the valve rod 3, it is used to switch the communication or blockage of the first channel 11, the second channel 12, and the third channel 13; the first channel 11 and the second channel 12 are arranged coaxially and oppositely, and the third channel 13 is vertically arranged between the first channel 11 and the second channel 12. The second channel 12 is threadedly connected to the first main pipe 4, and the third channel 13 is threadedly connected to the second main pipe 5. By externally threading the first main pipe 4 and the second main pipe 5, it is convenient for the staff to hold and disassemble, facilitating the replacement of the first main pipe 4 and the second main pipe 5, eliminating the connection method of using sealant for internal connection and fixing, and avoiding the risk of difficult maintenance and replacement when the joint ages and is damaged, which is likely to cause damage to the valve body; a sealing ring 41 is provided between the second channel 12 and the first main pipe 4; a sealing ring 41 is provided between the third channel 13 and the second main pipe 5. The setting of the sealing ring ensures the sealing performance of the valve body; a support frame 16 is provided on one side of the valve body 1; the valve rod 3 penetrates through the support frame 16, and the valve rod 3 and the support frame 16 are rotatably connected through a bushing 31. A plurality of gaskets 32 are provided between the bushing 31 and the support frame 16, as Figure 7 shown, an arc-shaped protrusion 321 is provided at the top of the gasket 32, and an arc-shaped groove 322 corresponding to the arc-shaped protrusion 321 is provided at the bottom of the gasket 32. The arc-shaped protrusions 321 of the adjacent gaskets 32 are fitted into the arc-shaped grooves 322. By adopting the combination of concave and convex, the gaskets 32 are more closely fitted to each other, thereby improving the sealing performance.

[0039] As Figures 1 to 6 shown, a raised ring 33 is provided on the side of the valve rod 3 close to the valve core 2. The raised ring 33 is clamped to one side of the valve body 1; a limiting member 34 is provided between the raised ring 33 and the valve body 1; the valve rod 3 includes a head 35, the head 35 is cylindrical, an external thread is provided on the outer side of the head 35, and the head 35 is fixedly connected to a handle through a thread; a hexagon 42 is provided on the side of the first main pipe 4 close to the valve body 1 for adjusting the tightness and disassembling and assembling with a wrench; two cuts 51 are provided on the side of the second main pipe 5 away from the valve body 1, and the cuts 51 are respectively located on both sides of the second main pipe 5; as Figure 6 shown, the valve rod 3 includes a head 35, and the head 35 is square, which is convenient for clamping a wrench. The head 35 of the valve rod 3 adopts two structures, which is convenient for different requirements and improves the practicability of the product.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A three-way ball valve with high stability, characterized by: It includes a valve body and a valve core, wherein the three sides of the valve body are respectively provided with a first channel, a second channel and a third channel; the valve body is provided with a limiting groove between the first channel and the second channel; a valve core is provided inside the valve body, and damping rings are respectively provided between the valve core and the first channel, the second channel, the third channel and the limiting groove.

2. A three-way ball valve with high stability as claimed in claim 1, characterized in that: The first channel, the second channel and the third channel are connected to each other; the valve core is provided with a plurality of through holes, and a groove is provided on the top of the valve core. The valve stem is clamped in the groove, and the valve core is rotated by the valve stem to switch the first channel, the second channel and the third channel to be unobstructed or blocked.

3. A three-way ball valve with high stability as claimed in claim 2, characterized in that: The first channel and the second channel are coaxially arranged opposite to each other, the third channel is vertically arranged between the first channel and the second channel, the second channel is connected to the first main through pipe through threads, and the third channel is connected to the second main through pipe through threads.

4. A three-way ball valve with high stability as claimed in claim 3, characterized in that: A sealing ring is provided between the second channel and the first main through pipe; and a sealing ring is provided between the third channel and the second main through pipe.

5. A three-way ball valve with high stability as claimed in claim 1 or 2, characterized in that: A support frame is provided on one side of the valve body; the valve stem passes through the support frame, and the valve stem and the support frame are rotatably connected via a bushing, and a plurality of gaskets are provided between the bushing and the support frame, and an arc-shaped protrusion is provided on the top of the gasket, and an arc-shaped groove corresponding to the arc-shaped protrusion is provided on the bottom of the gasket, and the arc-shaped protrusions of adjacent gaskets fit into the arc-shaped grooves.

6. A three-way ball valve with high stability as claimed in claim 1 or 2, characterized in that: A protruding ring is provided on one side of the valve stem close to the valve core, and the protruding ring is clamped on one side of the valve body; a limiting member is provided between the protruding ring and the valve body.

7. A three-way ball valve with high stability as claimed in claim 2, characterized in that: The valve stem comprises a head, which is cylindrical, and an external thread is arranged on the outer side of the head. The head is fixedly connected to the handle through the thread.

8. A three-way ball valve with high stability as claimed in claim 2, characterized in that: The valve stem comprises a head which is square and convenient for clamping a wrench.

9. A three-way ball valve with high stability as claimed in claim 1 or 3, characterized in that: The first main through pipe is provided with a hexagon on one side close to the valve body for use with a wrench to adjust tightness and for disassembly and assembly.

10. A three-way ball valve with high stability as claimed in claim 1 or 3, characterized in that: The second main through-tube is provided with two cutouts on one side away from the valve body, and the cutouts are respectively located on two sides of the second main through-tube.

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