High pressure water tee valve

Abstract

The utility model belongs to valve technical field discloses a high pressure water tee bend valve, including valve body, be equipped with water inlet, first water outlet and second water outlet on the valve body, be equipped with always open flow channel and valve cavity in the valve body, always open flow channel with water inlet, first water outlet intercommunication, be equipped with the valve core subassembly for controlling flow channel on-off between water inlet and second water outlet in the valve cavity. The utility model discloses through the cooperation of valve core subassembly and valve body, has realized first water outlet always open and second water outlet opening and closing controllable function, through simple operation can complete single water outlet and double water outlet water mode switching, has reduced equipment cost and the risk of leakage, and the dismounting of each component is convenient, has reduced maintenance difficulty and maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to a high-pressure water three-way valve. Background Technology

[0002] In water jet applications such as high-pressure cleaning, it may be necessary to continuously supply water to a main cleaning gun, or to quickly and easily open or close a secondary cleaning gun as needed on-site, thus enabling flexible switching from single-gun operation to dual-gun coordinated operation. Existing three-way valves (such as ball valves) primarily function as flow path reversals, opening one outlet while closing the other, which is insufficient to meet the specific operating conditions requiring continuous water supply from the main outlet and on-demand opening and closing of the secondary outlet. To meet this requirement, complex piping connections using two or more independent valves are often necessary, increasing equipment costs and raising the risk of leakage due to the increased number of connection points. Therefore, there is an urgent need for a high-pressure water three-way valve that can directly achieve the normally open main outlet and controlled opening and closing of the secondary outlet within a single valve body, simply and reliably switching between single-outlet and dual-outlet water discharge modes, thus saving equipment costs. Utility Model Content

[0003] This utility model addresses the shortcomings of the prior art by providing a high-pressure water three-way valve, which can directly realize the normally open main outlet and the controlled opening and closing of the auxiliary outlet within a single valve body, and simply and reliably complete the switching between single outlet and dual outlet water discharge modes, saving equipment costs.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A high-pressure water three-way valve includes a valve body, on which an inlet, a first outlet, and a second outlet are provided. The valve body is provided with a normally open flow channel and a valve cavity. The normally open flow channel is connected to the inlet and the first outlet. The valve cavity is provided with a valve core assembly for controlling the opening and closing of the flow channel between the inlet and the second outlet.

[0005] Preferably, the water inlet is located on one side of the valve body, and the first water outlet and the second water outlet are located on the other side of the valve body, with the water inlet and the first water outlet being coaxially arranged.

[0006] Preferably, the valve core assembly includes a valve seat and a valve stem. The valve seat is located inside the valve cavity and has a central channel communicating with the normally open flow channel. The side wall of the valve seat has a water passage hole communicating with the second outlet. The valve stem is slidably connected to the valve seat and has a sealing part at its end for blocking or opening the water flow between the water passage hole and the central channel. The valve body is provided with an adjustment assembly for controlling the movement of the valve stem.

[0007] Preferably, the adjusting assembly includes a positioning sleeve connected to the valve body and an adjusting screw threadedly connected to the positioning sleeve. The adjusting screw and the valve stem are coaxially arranged and cooperate with each other.

[0008] Preferably, the end of the valve stem away from the central channel is slidably connected to the positioning groove on the positioning sleeve and abuts against the end of the adjusting screw. When the adjusting screw is released from its limiting position on the valve stem, the water pressure acting on the valve stem can drive it to move, thereby opening the flow channel between the inlet and the second outlet.

[0009] Preferably, the positioning sleeve is threadedly connected to the end of the valve cavity away from the valve seat, and a locking nut for locking the adjusting screw is threadedly connected to the adjusting screw.

[0010] Preferably, a guide sleeve and a first sealing gasket are sandwiched between the positioning sleeve and the valve seat, the first sealing gasket is located between the guide sleeve and the valve seat, and the valve stem is slidably connected to the guide sleeve and the first sealing gasket.

[0011] Preferably, at least two second sealing gaskets are provided between the valve seat and the side wall of the valve cavity, and the at least two second sealing gaskets are distributed on both sides of the water passage hole.

[0012] Preferably, the sealing part is truncated cone-shaped, with its conical surface abutting against the connection between the central channel and the water passage hole, forming a sealing pair.

[0013] Preferably, high-pressure pipe joints are connected to the water inlet, the first water outlet, and the second water outlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model realizes the function of normally opening the first outlet (main outlet) and controllable opening and closing of the second outlet (auxiliary outlet) through the cooperation of the valve core assembly and the valve body. The single outlet and double outlet water discharge mode can be switched through simple operation, avoiding the complex system that previously required two or even more valves to be spliced, and reducing equipment cost. (2) The inlet and the first outlet of this utility model are coaxially arranged, so that when switching from the dual outlet water outlet mode to the single outlet water outlet mode, the pressure exerted by the high pressure water on both ends of the valve stem is basically balanced. When the operator rotates the adjusting screw, he does not need to overcome the huge water pressure, which reduces the difficulty of adjustment and makes the operation simple and quick. (3) This utility model integrates the control functions of two water outlet modes into one valve body, and adds a first sealing gasket and a second sealing gasket, which greatly improves the sealing effect and reduces the risk of leakage; (4) The positioning sleeve of this utility model is threadedly connected to the valve cavity, and the adjusting screw, valve stem, guide sleeve and valve seat are also movable connections, which are easy to disassemble and assemble, facilitate the replacement of each component and sealing gasket, and reduce maintenance difficulty and maintenance cost. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 A magnified structural diagram at point A; Figure 4 This is a schematic diagram of the valve core assembly of this utility model; In the diagram: 1. Valve body, 2. Inlet, 3. First outlet, 4. Second outlet, 5. Normal flow channel, 6. Valve cavity, 601. Annular water passage, 7. Valve seat, 701. Central channel, 702. Water passage hole, 8. Valve stem, 801. Sealing part, 9. Positioning sleeve, 901. Positioning groove, 10. Adjusting screw, 11. Locking nut, 12. Guide sleeve, 13. First sealing washer, 14. Second sealing washer, 15. High-pressure pipe joint. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figure 1 and Figure 2 As shown, a high-pressure water three-way valve includes a valve body 1. An inlet 2 is provided on one side of the valve body, and a first outlet 3 and a second outlet 4 are provided on the opposite side. The inlet and the first outlet are coaxially arranged. The first outlet is a normally open outlet, and the second outlet is a secondary outlet. Standard high-pressure pipe connectors 15 are connected to the inlet, the first outlet, and the second outlet for quick connection with external high-pressure water pipes. The high-pressure pipe connectors use a special positive and negative thread nut kit for high-pressure pipes, including an outer UNF1-1 / 8-12 compression nut and an inner UNF9 / 16-18LH reverse thread nut. These are existing technologies and can be purchased on the market, so they will not be described in detail here. The valve body is provided with a normally open flow channel 5 and a valve cavity 6. The inlet 2 and the first outlet 3 are kept in constant contact through the normally open flow channel 5. The valve cavity is provided with a valve core assembly for controlling the opening and closing of the flow channel between the inlet and the second outlet. The valve core assembly is used to connect or disconnect the flow channel, thereby realizing the controlled opening and closing of the second outlet. When the flow channel between the inlet and the second outlet is disconnected, that is, when the second outlet is closed, the high-pressure water three-way valve is in single outlet mode; when the flow channel between the inlet and the second outlet is connected, that is, when the second outlet is open, the high-pressure water three-way valve is in dual outlet mode, thereby realizing the switching between the two outlet modes.

[0021] Combination Figures 2 to 4As shown, the valve core assembly includes a valve seat 7 and a valve stem 8. The valve seat is located inside the valve cavity, and the inner diameter of the valve cavity is larger than the inner diameter of the normally open flow channel, and the two are connected. The valve seat has a central channel 701, which is connected to the normally open flow channel. The side wall of the valve seat has a water passage hole 702 that communicates with the second water outlet. In this embodiment, the valve cavity has an annular water passage cavity 601 at the water passage hole. The inner diameter of the annular water passage cavity is larger than the outer diameter of the valve seat at the water passage hole. The annular water passage cavity communicates with the second water outlet. The valve stem is slidably connected to the valve seat, and its end is provided with a sealing part 801 for blocking or opening the water flow between the water passage and the central channel. The sealing part is truncated cone-shaped, and its conical surface abuts against the connection between the central channel and the water passage, forming a sealing pair. When the sealing part 801 at the end of the valve stem blocks the connection, the water flow cannot flow from the central channel to the water passage, nor can it flow to the second outlet, thus closing the second outlet. Conversely, when the sealing part at the end of the valve stem is far away from the connection, the water flow can flow from the central channel through the water passage and out of the second outlet, thus opening the second outlet.

[0022] The movement of the valve stem is controlled by an adjusting assembly on the valve body. This assembly includes a positioning sleeve 9 connected to the valve body and an adjusting screw 10 threadedly connected to the positioning sleeve. The outer end of the adjusting screw has a hexagonal head for easy operation. The positioning sleeve is threadedly connected to the end of the valve cavity furthest from the valve seat, facilitating disassembly and maintenance. A locking nut 11 is threaded onto the adjusting screw to ensure the stability and safety of high-pressure cleaning. The adjusting screw and valve stem are coaxially aligned and cooperate with each other. The end of the valve stem furthest from the central channel is slidably connected to the positioning groove 901 on the positioning sleeve and abuts against the end of the adjusting screw. When the adjusting screw 10 is turned to move towards the central channel 701, the adjusting screw 10 pushes the valve stem 8 to move synchronously, and the sealing part 801 at its end blocks the connection between the central channel 701 and the water passage 702, thereby closing the flow channel between the inlet and the second outlet. When the limiting effect of the adjusting screw 10 on the valve stem 8 is released, the water pressure acting on the valve stem 8 can drive it to move away from the central channel, thereby opening the flow channel between the inlet and the second outlet. Due to the water pressure, even when the limiting effect of the adjusting screw on the valve stem is released, the valve stem still abuts against the end of the adjusting screw.

[0023] To reduce the risk of leakage and ensure the stability of valve stem movement, a guide sleeve 12 and a first sealing gasket 13 are sandwiched between the positioning sleeve and the valve seat. The first sealing gasket is located between the guide sleeve and the valve seat, and the valve stem is slidably connected to the guide sleeve and the first sealing gasket. The first sealing gasket prevents water from seeping from the inside of the valve seat to the positioning sleeve side. At least two second sealing gaskets 14 are provided between the valve seat and the side wall of the valve cavity. The at least two second sealing gaskets are distributed on both sides of the water passage hole to prevent water from seeping from the water passage hole to both ends of the valve seat.

[0024] Combination Figures 1 to 4 As shown, the working principle of this utility model is as follows: (1) Single outlet water discharge mode (second outlet 4 closed): Rotate the adjusting screw 10 clockwise. The end of the adjusting screw 10 pushes the valve stem 8 toward the central channel 701. The sealing part 801 on the valve stem 8 tightly seals the connection between the central channel 701 and the water passage 702, cutting off the passage between the inlet 2 and the second outlet 4. At this time, the high-pressure water enters through the inlet 2, and after passing through the flow channel 5, it all flows out from the first outlet 3.

[0025] (2) Dual-outlet water discharge mode (second outlet 4 open): Rotate the adjusting screw 10 counterclockwise. The end of the adjusting screw 10 moves away from the central channel 701. Since the central channel 701 is connected to the normally open flow channel 5, under the action of high pressure water, the valve stem 8 will move towards the adjusting screw 10, causing the sealing part 801 on the valve stem 8 to disengage from the sealing position. The passage between the inlet 2 and the second outlet 4 is connected. At this time, the high pressure water enters through the inlet 2. After the normally open flow channel, part of it flows out through the first outlet 3, and the other part flows out through the central channel 701, the water passage hole 702, the annular water passage cavity 601, and finally flows out through the second outlet 4.

[0026] (3) In the dual-outlet water outlet mode, the size of the channel between the sealing part 801 and the sealing position of the valve stem 8 can be controlled by turning the adjusting screw 10, thereby controlling the water flow and water pressure of the second outlet 4. In addition, when the adjusting screw 10 is turned clockwise again, the adjusting screw 10 will push the valve stem 8 towards the central channel 701, overcoming the water pressure and causing the sealing part to re-seal the connection between the central channel 701 and the water passage 702, cutting off the water flow of the second outlet 4, and switching back to the single-outlet water outlet mode. Since the inlet 2 and the first outlet 3 are coaxially set, the operator does not need to exert too much physical effort to overcome the water pressure when switching from the dual-outlet water outlet mode to the single-outlet water outlet mode, making the operation labor-saving.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

Claims

1. A high-pressure water three-way valve, characterized in that: The valve includes a valve body with an inlet, a first outlet, and a second outlet. The valve body contains a normally open flow channel and a valve cavity. The normally open flow channel communicates with the inlet and the first outlet. The valve cavity contains a valve core assembly for controlling the flow channel connection between the inlet and the second outlet. The valve core assembly includes a valve seat and a valve stem. The valve seat is located within the valve cavity and has a central channel communicating with the normally open flow channel. A water passage hole communicating with the second outlet is located on the side wall of the valve seat. The valve stem is slidably connected to the valve seat, and its end has a sealing portion for blocking or opening the water flow between the water passage hole and the central channel. The valve body has an adjustment assembly for controlling the movement of the valve stem.

2. The high-pressure water three-way valve as described in claim 1, characterized in that: The inlet is located on one side of the valve body, and the first outlet and the second outlet are located on the other side of the valve body, with the inlet and the first outlet coaxially arranged.

3. A high-pressure water three-way valve as described in claim 1, characterized in that: The adjustment assembly includes a positioning sleeve connected to the valve body and an adjustment screw threadedly connected to the positioning sleeve. The adjustment screw and the valve stem are coaxially arranged and cooperate with each other.

4. A high-pressure water three-way valve as described in claim 3, characterized in that: The end of the valve stem away from the central channel is slidably connected to the positioning groove on the positioning sleeve and abuts against the end of the adjusting screw. When the adjusting screw is released from its limiting position on the valve stem, the water pressure acting on the valve stem can drive it to move, thereby opening the flow channel between the inlet and the second outlet.

5. A high-pressure water three-way valve as described in claim 3, characterized in that: The positioning sleeve is threadedly connected to the end of the valve cavity away from the valve seat, and a locking nut for locking the adjusting screw is threadedly connected to the adjusting screw.

6. A high-pressure water three-way valve as described in claim 3, characterized in that: A guide sleeve and a first sealing gasket are sandwiched between the positioning sleeve and the valve seat. The first sealing gasket is located between the guide sleeve and the valve seat. The valve stem is slidably connected to the guide sleeve and the first sealing gasket.

7. A high-pressure water three-way valve as described in claim 1, characterized in that: At least two second sealing gaskets are provided between the valve seat and the side wall of the valve cavity, and the at least two second sealing gaskets are distributed on both sides of the water passage hole.

8. A high-pressure water three-way valve as described in claim 1, characterized in that: The sealing part is truncated cone-shaped, and its conical surface abuts against the connection between the central channel and the water passage hole, forming a sealing pair.

9. A high-pressure water three-way valve as described in claim 1, characterized in that: High-pressure pipe joints are connected to the water inlet, the first water outlet, and the second water outlet.

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