Double-blocking and double-discharging ball valve

Abstract

The utility model provides a double-blocking double-discharging ball valve, which relates to the technical field of valves and comprises a valve body, a left valve cover is fixedly mounted on the left end face of the valve body, a right valve cover is fixedly mounted on the right end face of the valve body, a valve core is arranged in the valve body, a valve sleeve is fixedly mounted in the valve body, and a valve rod is rotatably connected in the valve sleeve. The quick release mechanism is arranged in the mounting plate, the positioning block is in sliding fit with the positioning groove, primary positioning of the handle and the mounting plate is achieved through mutual attraction of the magnet A and the magnet B, meanwhile, the limiting rod is inserted into the limiting hole under the action of the tension spring, dual fixation is formed, and it is guaranteed that the handle is stable and does not fall off when the valve is operated; when the handle needs to be disassembled for maintenance or replacement, the handle can be easily taken down only by pulling the limiting rod to compress the tension spring, so that the limiting rod is separated from the limiting hole, the handle can be disassembled without a tool, convenience and rapidness are achieved, and the maintenance difficulty and time cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a double-blocking double-discharge ball valve. Background Technology

[0002] Valves are essential devices used to control the flow of fluid media in pipeline systems, and are widely used in industries such as petroleum, natural gas, chemical, and power. Ball valves, due to their simple structure, rapid opening and closing, and good sealing performance, have become one of the most commonly used control elements in various pipeline systems.

[0003] In the prior art, such as the Chinese patent CN216344038U "A Double-Blocking Double-Discharge Ball Valve", a valve body, a ball valve assembly, and an internal inspection ball valve assembly are included. Two sets of ball valve assemblies are sequentially arranged on the valve body for controlling the opening and closing of the pipeline inside the valve body. The internal inspection ball valve assembly installed on the lower side of the valve body is located between the two sets of ball valve assemblies. This utility model can quickly realize discharge and closure, while also saving installation space to the maximum extent and simplifying the installation procedure. By using the internal inspection ball valve assembly, the intercepted liquid can be taken out for fluid medium monitoring, which is convenient for monitoring the fluid medium quality and reduces repeated disassembly and assembly of the valve body.

[0004] Although this type of double-block, double-discharge ball valve can quickly achieve discharge and closure, and can extract the intercepted liquid for fluid medium testing, facilitating the monitoring of fluid medium quality, the connection structure between the valve stem and handle lacks convenient maintenance design. After long-term use, if wear or loosening occurs, disassembly and replacement are cumbersome, often requiring tools, which is time-consuming and labor-intensive, increasing equipment downtime and maintenance costs, thus requiring improvement. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the connection structure between the valve stem and handle in the existing technology lacks convenient maintenance design, and the disassembly and replacement operation is relatively cumbersome and often requires the use of tools. Therefore, a double-blocking double-discharge ball valve is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a double-blocking double-discharge ball valve, comprising a valve body, a left valve cover fixedly installed on the left end face of the valve body, a right valve cover fixedly installed on the right end face of the valve body, a valve core provided inside the valve body, a valve sleeve fixedly installed inside the valve body, a valve stem rotatably connected inside the valve sleeve, packing provided inside the valve sleeve, an mounting plate fixedly installed at one end of the valve stem, a handle slidably connected to the inner side of the mounting plate, a quick-release mechanism provided inside the mounting plate, a drain pipe fixedly installed on the lower surface of the valve body, and a drain valve provided inside the drain pipe;

[0007] The quick-release mechanism includes a positioning block, a positioning groove is provided on the side of the mounting plate, a magnet A is fixedly installed on the side of the handle, a magnet B is fixedly installed on the inner side of the mounting plate, a limit rod is slidably connected inside the mounting plate, a limit plate is fixedly installed on the surface of the limit rod, a tension spring is sleeved on the surface of the limit rod, and a limit hole is provided on the side of the handle.

[0008] Preferably, one end of the valve stem is fixedly connected to the surface of the valve core, and the inner side of the packing is in contact with the outer surface of the valve stem.

[0009] Preferably, the surface of the positioning block is fixedly connected to the surface of the handle, and the positioning block is slidably connected to the positioning groove.

[0010] Preferably, magnet A and magnet B are attracted to each other.

[0011] Preferably, the limiting rod and the limiting hole are slidably connected.

[0012] Preferably, one end of the tension spring is fixedly connected to the side of the limiting plate, and the other end of the tension spring is fixedly connected to the inner side of the mounting plate.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, a quick-release mechanism is set inside the mounting plate, and the positioning block slides into the positioning groove. Magnets A and B attract each other to achieve initial positioning of the handle and the mounting plate. At the same time, the limiting rod is inserted into the limiting hole under the action of the tension spring, forming a double fixation to ensure that the handle is stable and does not fall off when the valve is operated. When it is necessary to remove the handle for maintenance or replacement, simply pull the limiting rod to compress the tension spring, so that the limiting rod disengages from the limiting hole, and the handle can be easily removed. Disassembly can be done without the aid of tools, which is convenient and quick, reducing maintenance difficulty and time costs. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a double-blocking, double-discharge ball valve is provided for this utility model;

[0016] Figure 2 A cross-sectional view of a double-blocking, double-discharge ball valve is provided for this utility model;

[0017] Figure 3 This utility model provides exploded views of the handle and limit rod of a double-block, double-discharge ball valve;

[0018] Figure 4 This utility model proposes a double-blocking, double-discharge ball valve. Figure 3 Enlarged view of point A in the middle.

[0019] Legend: 1. Valve body; 2. Left valve cover; 3. Right valve cover; 4. Valve core; 5. Valve sleeve; 6. Valve stem; 7. Packing; 8. Mounting plate; 9. Handle; 10. Quick release mechanism; 101. Positioning block; 102. Positioning groove; 103. Magnet A; 104. Magnet B; 105. Limiting rod; 106. Limiting disc; 107. Tension spring; 108. Limiting hole; 11. Drain pipe; 12. Drain valve. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a double-blocking double-discharge ball valve, including a valve body 1, a left valve cover 2 fixedly installed on the left end face of the valve body 1, a right valve cover 3 fixedly installed on the right end face of the valve body 1, a valve core 4 provided inside the valve body 1, a valve sleeve 5 fixedly installed inside the valve body 1, a valve stem 6 rotatably connected inside the valve sleeve 5, a packing 7 provided inside the valve sleeve 5, an mounting plate 8 fixedly installed at one end of the valve stem 6, a handle 9 slidably connected to the inner side of the mounting plate 8, a quick-release mechanism 10 provided inside the mounting plate 8, a drain pipe 11 fixedly installed on the lower surface of the valve body 1, a drain valve 12 provided inside the drain pipe 11, the quick-release mechanism 10 including a positioning block 101, a positioning groove 102 opened on the side of the mounting plate 8, and a magnet A103 fixedly installed on the side of the handle 9. A magnet B104 is fixedly installed on the inner side of the mounting plate 8. A limit rod 105 is slidably connected inside the mounting plate 8. A limit plate 106 is fixedly installed on the surface of the limit rod 105. A tension spring 107 is sleeved on the surface of the limit rod 105. A limit hole 108 is opened on the side of the handle 9. One end of the valve stem 6 is fixedly connected to the surface of the valve core 4. The inner side of the packing 7 is in contact with the outer surface of the valve stem 6. The surface of the positioning block 101 is fixedly connected to the surface of the handle 9. The positioning block 101 is slidably connected to the positioning groove 102. The magnet A103 and the magnet B104 are attracted to each other. The limit rod 105 is slidably connected to the limit hole 108. One end of the tension spring 107 is fixedly connected to the side of the limit plate 106. The other end of the tension spring 107 is fixedly connected to the inner side of the mounting plate 8.

[0023] In this embodiment, when the handle 9 needs to be disassembled for maintenance, repair, or replacement, simply pull the limiting rod 105 manually to overcome the tension of the tension spring 107, causing the limiting rod 105 to disengage from the limiting hole 108. Simultaneously, the attraction between magnet A103 and magnet B104 is released, allowing the handle 9 to slide easily out from the inside of the mounting plate 8, quickly completing the disassembly. This significantly reduces maintenance difficulty and shortens maintenance time. During valve use, if it is necessary to discharge the medium inside the valve body 1, the drain valve 12 inside the drain pipe 11 can be opened. The medium is discharged through the drain pipe 11, facilitating valve maintenance, cleaning, or pressure release in case of abnormal system pressure, ensuring the safe and stable operation of the valve and the entire pipeline system.

[0024] The working principle of this embodiment is as follows: When using this double-block double-discharge ball valve, if the handle 9 needs to be installed, firstly, align the positioning block 101 on the side of the handle 9 with the positioning groove 102 on the side of the mounting plate 8 and insert it. At this time, the magnet A103 on the side of the handle 9 and the magnet B104 on the inner side of the mounting plate 8 attract each other, completing the initial positioning of the handle 9 and the mounting plate 8. Under the action of the tension spring 107, the limiting rod 105 inside the mounting plate 8 automatically inserts into the limiting hole 108 on the side of the handle 9, forming a double fixing structure. The operator holds the handle 9 and rotates it, causing the valve stem 6 to rotate inside the valve sleeve 5. The valve stem 6 is fixedly connected to the valve core 4, thereby causing the valve core 4 to rotate, realizing the control of the valve body 1. The valve body controls the opening and closing of the pipeline. During rotation, the packing 7 tightly adheres to the outer surface of the valve stem 6 to prevent medium leakage. When the valve is fully open or fully closed and needs to be fixed, the handle 9 can be kept stationary to achieve stable control. If the handle 9 needs to be disassembled for maintenance or replacement, manually pull the limit rod 105 to overcome the tension of the tension spring 107, causing the limit rod 105 to disengage from the limit hole 108. At the same time, the attraction between magnet A103 and magnet B104 is released, and the handle 9 can be slid out from the inside of the mounting plate 8 to complete the disassembly. When it is necessary to discharge the medium inside the valve body 1, open the drain valve 12 inside the drain pipe 11, and the medium is discharged through the drain pipe 11 to complete the discharge operation.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A double-plug double-discharge ball valve, comprising a valve body (1), characterized in that: A left valve cover (2) is fixedly installed on the left end face of the valve body (1), a right valve cover (3) is fixedly installed on the right end face of the valve body (1), a valve core (4) is provided inside the valve body (1), a valve sleeve (5) is fixedly installed inside the valve body (1), a valve stem (6) is rotatably connected inside the valve sleeve (5), a packing (7) is provided inside the valve sleeve (5), an mounting plate (8) is fixedly installed at one end of the valve stem (6), a handle (9) is slidably connected to the inner side of the mounting plate (8), a quick release mechanism (10) is provided inside the mounting plate (8), a drain pipe (11) is fixedly installed on the lower surface of the valve body (1), and a drain valve (12) is provided inside the drain pipe (11). The quick-release mechanism (10) includes a positioning block (101), a positioning groove (102) is provided on the side of the mounting plate (8), a magnet A (103) is fixedly installed on the side of the handle (9), a magnet B (104) is fixedly installed on the inner side of the mounting plate (8), a limit rod (105) is slidably connected inside the mounting plate (8), a limit plate (106) is fixedly installed on the surface of the limit rod (105), a tension spring (107) is sleeved on the surface of the limit rod (105), and a limit hole (108) is provided on the side of the handle (9).

2. The double-plug double-discharge ball valve according to claim 1, characterized in that: One end of the valve stem (6) is fixedly connected to the surface of the valve core (4), and the inner side of the packing (7) is in contact with the outer surface of the valve stem (6).

3. The double-plug double-discharge ball valve according to claim 1, characterized in that: The surface of the positioning block (101) is fixedly connected to the surface of the handle (9), and the positioning block (101) is slidably connected to the positioning groove (102).

4. The double-plug double-discharge ball valve according to claim 1, characterized in that: The magnet A (103) and the magnet B (104) are attracted to each other.

5. The double-plug double-discharge ball valve according to claim 1, characterized in that: The limiting rod (105) is slidably connected to the limiting hole (108).

6. The double-plug double-discharge ball valve according to claim 1, characterized in that: One end of the tension spring (107) is fixedly connected to the side of the limiting plate (106), and the other end of the tension spring (107) is fixedly connected to the inner side of the mounting plate (8).

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