L-shaped three-way valve

Abstract

The utility model relates to the technical field of valves, in particular to an L-shaped three-way valve which is characterized in that when the valve is in a closed state, a handle is limited through a limiting mechanism, so that the handle is not easy to rotate when the valve is in the closed state, the stability of the handle is improved, and the L-shaped three-way valve is convenient to use and high in practicability. Comprising a valve body, a liquid inlet pipe, a liquid discharge pipe A, a liquid discharge pipe B and a handle, a cavity is formed in the valve body, the liquid inlet pipe communicated with the cavity is arranged on the lower portion of the valve body, the liquid discharge pipe A and the liquid discharge pipe B which are communicated with the cavity are arranged at the left end and the right end of the valve body respectively, a valve rod is arranged on the valve body, the valve rod is rotationally installed on the valve body, and the handle is installed at the upper end of the valve rod; the valve further comprises a limiting mechanism and an opening and closing mechanism, the opening and closing mechanism is installed in the cavity of the valve body and used for controlling conveying of liquid in the valve cavity, the opening and closing mechanism is installed at the lower end of the valve rod, and the limiting mechanism is installed on the upper portion of the valve body and used for limiting the handle.

Description

Technical Field

[0001] This utility model relates to the technical field of valves, and in particular to an L-type three-way valve. Background Technology

[0002] A three-way valve is a device for controlling fluid transport, widely used in chemical, food processing, and natural gas transportation industries. Current three-way valves mainly consist of a handle and a valve body. The handle is located on the valve body, and rotating the handle controls the opening and closing of the valve. However, existing three-way valves have the following problem: when rotating the handle to close the valve, there is no limiting device for the handle. This allows the handle to easily rotate under external vibrations, impacts, or other influences, affecting the valve's closed state and making it inconvenient to use. Therefore, a three-way valve with a handle limiting function is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an L-type three-way valve that limits the handle by a limiting mechanism when the valve is closed, making it difficult for the handle to rotate when the valve is closed, thus improving the stability of the handle, making it convenient to use and highly practical.

[0004] This utility model discloses an L-type three-way valve, comprising a valve body, an inlet pipe, a drain pipe A, a drain pipe B, and a handle. The valve body has an internal chamber, with an inlet pipe communicating with the chamber at the lower part. Drain pipes A and B, communicating with the chamber, are respectively located at the left and right ends of the valve body. A valve stem is mounted on the valve body and rotatably. The handle is mounted on the upper end of the valve stem. The valve also includes a limiting mechanism and an opening / closing mechanism. The opening / closing mechanism is installed in the valve body chamber and controls the flow of liquid within the chamber. The limiting mechanism is installed at the lower end of the valve stem and is mounted on the upper part of the valve body, limiting the handle's position. When the valve is closed, rotating the handle rotates the valve stem, which in turn rotates the opening / closing mechanism until the handle is in the limiting mechanism. At this point, the opening / closing mechanism seals the inlet pipe, stopping the flow of liquid, and the limiting mechanism further restricts the handle's movement, making it less prone to rotation when the valve is closed. This improves the handle's stability, making it convenient and practical.

[0005] Preferably, the limiting mechanism includes a pressure plate, two sets of limiting blocks, and two sets of springs. Two sets of sliding grooves are provided at the upper end of the valve body. The pressure plate is bolted to the upper end of the valve body. The pressure plate has two vertically connected slots, located at the upper ends of the two sets of sliding grooves. The lower parts of the two sets of limiting blocks are slidably installed within the two sets of sliding grooves of the valve body. The upper parts of the two sets of limiting blocks pass through the two slots of the pressure plate and are positioned above the pressure plate. The two sets of springs are installed within the two sets of sliding grooves of the valve body. The lower ends of the two sets of limiting blocks contact the upper ends of the two sets of springs. The upper parts of both sets of limiting blocks are arc-shaped, and the two sets of springs are in a compressed state. When the valve is closed, the handle is rotated between the two sets of limiting blocks, thus closing the valve. The limiting blocks restrict the handle, making it difficult to rotate. When the valve needs to be opened, the operator rotates the handle forcefully, allowing it to pass the upper ends of the limiting blocks before rotating. This facilitates the limiting of the handle.

[0006] Preferably, the opening and closing mechanism includes a sealing ball, which is installed in the cavity of the valve body and at the lower end of the valve stem. The outer wall of the sealing ball is in sealing contact with the inner wall of the valve body cavity. The lower part of the sealing ball has an inlet port communicating with the inlet pipe, and the side of the sealing ball has a drain port communicating with the inlet port. The sealing mechanism between the sealing ball and the valve body cavity is the same as the sealing mechanism between the ball head and the valve body inside a common ball valve. When it is necessary to discharge the fluid input through the inlet pipe via the drain pipe A, the handle is rotated. The handle rotates the sealing ball via the valve stem, causing the drain port on the sealing ball to connect with drain pipe A. At this time, the fluid entering through the inlet pipe enters drain pipe A through the inlet and drain ports. When it is necessary to discharge the fluid entering through the inlet pipe through drain pipe B, the handle is rotated again to connect the drain port on the sealing ball with drain pipe B. After that, the fluid entering through the inlet pipe enters drain pipe B through the inlet and drain ports. It can select the fluid delivery pipeline according to the needs, making it convenient to use and highly practical.

[0007] Preferably, the handle and the valve stem are connected by bolts; this arrangement makes the connection between the handle and the valve stem detachable, facilitating replacement.

[0008] Preferably, the lower end of the handle is provided with slopes on both the left and right sides; with the above arrangement, when the handle passes the upper end of the limiting block, the lower end of the handle is provided with slopes, making it easier for the handle to pass the upper end of the limiting block, thus improving convenience.

[0009] Preferably, the drain pipe A and the drain pipe B are coaxial.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: when the valve is closed, the handle is limited by the limiting mechanism, so that the handle is not easy to rotate when the valve is closed, which improves the stability of the handle, makes it convenient to use, and has high practicality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0013] Figure 3 This is a top view of the structure of this utility model;

[0014] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of AA;

[0015] Figure 5 This is a cross-sectional structural schematic diagram of the present invention;

[0016] Figure 6 This is a cross-sectional structural diagram of the opening and closing mechanism;

[0017] Figure 7 This is an isometric structural diagram of the sealing ball and handle.

[0018] The following are labels in the attached diagram: 1. Valve body; 2. Inlet pipe; 3. Drain pipe A; 4. Drain pipe B; 5. Handle; 6. Pressure plate; 7. Limiting block; 8. Spring; 9. Sealing ball; 10. Inlet; 11. Drain. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example

[0021] like Figures 1 to 7The L-shaped three-way valve of this utility model includes a valve body 1, an inlet pipe 2, a drain pipe A3, a drain pipe B4, a handle 5, a limiting mechanism, and an opening and closing mechanism. The valve body 1 has an internal chamber. The inlet pipe 2, communicating with the chamber, is located at the lower part of the valve body 1. Drain pipes A3 and B4, communicating with the chamber, are respectively located at the left and right ends of the valve body 1. A valve stem is mounted on the valve body 1 and rotatably. The handle 5 is mounted on the upper end of the valve stem. The opening and closing mechanism is installed within the chamber of the valve body 1 and is used to control the valve body 1. The liquid is transported within the chamber. The opening and closing mechanism is installed at the lower end of the valve stem, and the limiting mechanism is installed on the upper part of the valve body 1. The limiting mechanism is used to limit the handle 5. When the valve is closed, the handle 5 is rotated, which drives the valve stem to rotate. The valve stem drives the opening and closing mechanism to rotate until the handle 5 rotates into the limiting mechanism. At this time, the opening and closing mechanism seals the inlet pipe 2, stops the liquid transport, and limits the handle 5 through the limiting mechanism, making it difficult for the handle 5 to rotate when the valve is closed. This improves the stability of the handle 5, making it convenient to use and highly practical.

[0022] like Figure 1 , Figure 3 , Figure 4 and Figure 5 The limiting mechanism includes a pressure plate 6, two sets of limiting blocks 7, and two sets of springs 8. Two sets of sliding grooves are provided at the upper end of the valve body 1. The pressure plate 6 is bolted to the upper end of the valve body 1. The pressure plate 6 has two vertically communicating slots, located at the upper ends of the two sets of sliding grooves. The lower parts of the two sets of limiting blocks 7 are slidably installed vertically within the two sets of sliding grooves of the valve body 1. The upper parts of the two sets of limiting blocks 7 pass through the two slots of the pressure plate 6 and are positioned above the pressure plate 6. The two sets of springs 8 are respectively installed in the two sets of sliding grooves of the valve body 1. Inside, the lower ends of the two sets of limiting blocks 7 contact the upper ends of the two sets of springs 8 respectively. The upper parts of the two sets of limiting blocks 7 are both arc-shaped, and the two sets of springs 8 are in a compressed state. When the valve is in the closed state, the handle 5 is rotated between the two sets of limiting blocks 7. At this time, the valve is in the closed state. The two sets of limiting blocks 7 limit the handle 5, making it difficult for the handle 5 to rotate. When it is necessary to open the valve, the operator can rotate the handle 5 forcefully so that the handle 5 passes the upper end of the limiting block 7 and then rotates. This facilitates the limitation of the handle 5.

[0023] like Figure 5 , Figure 6 and Figure 7The opening and closing mechanism includes a sealing ball 9, which is installed in the cavity of the valve body 1 and at the lower end of the valve stem. The outer wall of the sealing ball 9 is in sealing contact with the inner wall of the cavity of the valve body 1. The lower part of the sealing ball 9 is provided with an inlet 10 communicating with the inlet pipe 2, and the side of the sealing ball 9 is provided with a drain 11 communicating with the inlet 10. The sealing mechanism between the sealing ball 9 and the cavity of the valve body 1 is the same as the sealing mechanism between the ball head and the valve body inside a normal ball valve. When it is necessary to discharge the fluid input through the inlet pipe 2 through the drain pipe A3, the handle 5 is rotated. The valve stem drives the sealing ball 9 to rotate, causing the drain port 11 on the sealing ball 9 to rotate and connect with the drain pipe A3. At this time, the fluid entering through the inlet pipe 2 enters the drain pipe A3 through the inlet port 10 and the drain port 11. When it is necessary to discharge the fluid entering through the inlet pipe 2 through the drain pipe B4, the handle 5 is rotated again, causing the drain port 11 on the sealing ball 9 to rotate and connect with the drain pipe B4. After that, the fluid entering through the inlet pipe 2 enters the drain pipe B4 through the inlet port 10 and the drain port 11. It can select the fluid delivery pipeline according to the needs, which is convenient to use and highly practical.

[0024] The handle 5 is connected to the valve stem by bolts; the above configuration makes the connection between the handle 5 and the valve stem detachable, which facilitates replacement.

[0025] Both the left and right sides of the lower end of the handle 5 are sloped; with the above design, when the handle 5 passes the upper end of the limiting block 7, the sloped lower end of the handle 5 makes it easier to pass the upper end of the limiting block 7, improving convenience. The drain pipe A3 is coaxial with the drain pipe B4.

[0026] The spring 8 and sealing ball 9 of the L-type three-way valve of this utility model are both purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An L-type three-way valve, comprising a valve body (1), an inlet pipe (2), a drain pipe A (3), a drain pipe B (4), and a handle (5), wherein the valve body (1) has an internal chamber, the lower part of the valve body (1) is provided with an inlet pipe (2) communicating with the chamber, the left and right ends of the valve body (1) are respectively provided with drain pipe A (3) and drain pipe B (4) communicating with the chamber, a valve stem is provided on the valve body (1), the valve stem is rotatably mounted on the valve body (1), and the handle (5) is mounted on the upper end of the valve stem; characterized in that, It also includes a limiting mechanism and an opening and closing mechanism. The opening and closing mechanism is installed in the chamber of the valve body (1) and is used to control the delivery of liquid in the chamber of the valve body (1). The opening and closing mechanism is installed at the lower end of the valve stem. The limiting mechanism is installed on the upper part of the valve body (1) and is used to limit the handle (5).

2. The L-type three-way valve as described in claim 1, characterized in that, The limiting mechanism includes a pressure plate (6), two sets of limiting blocks (7) and two sets of springs (8). The upper end of the valve body (1) is provided with two sets of sliding grooves. The pressure plate (6) is installed on the upper end of the valve body (1) by bolts. The pressure plate (6) is provided with two slots that are connected vertically. The two slots are located at the upper ends of the two sets of sliding grooves respectively. The lower parts of the two sets of limiting blocks (7) are slidably installed in the two sets of sliding grooves of the valve body (1) respectively. The upper parts of the two sets of limiting blocks (7) pass through the two slots of the pressure plate (6) and are located above the pressure plate (6). The two sets of springs (8) are installed in the two sets of sliding grooves of the valve body (1) respectively. The lower ends of the two sets of limiting blocks (7) are in contact with the upper ends of the two sets of springs (8) respectively. The upper parts of the two sets of limiting blocks (7) are both arc-shaped. The two sets of springs (8) are in a compressed state.

3. The L-type three-way valve as described in claim 1, characterized in that, The opening and closing mechanism includes a sealing ball (9), which is installed in the cavity of the valve body (1). The sealing ball (9) is installed at the lower end of the valve stem. The outer side wall of the sealing ball (9) is in sealing contact with the inner side wall of the cavity of the valve body (1). The lower part of the sealing ball (9) is provided with an inlet (10) that communicates with the inlet pipe (2). The side of the sealing ball (9) is provided with a drain (11) that communicates with the inlet (10).

4. The L-type three-way valve as described in claim 1, characterized in that, The handle (5) is connected to the valve stem by bolts.

5. The L-type three-way valve as described in claim 1, characterized in that, The lower end of the handle (5) is provided with slopes on both the left and right sides.

6. The L-type three-way valve as described in claim 1, characterized in that, The drain pipe A (3) is coaxial with the drain pipe B (4).

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