A ball valve convenient to disassemble and maintain

Abstract

The utility model discloses a ball valve convenient to disassemble and maintain relates to ball valve field. This ball valve convenient to disassemble and maintain, including valve body unit, the both ends of valve body unit are connected with water inlet end and water outlet end through flange plate respectively, the other end of water inlet end and water outlet end is connected with the pipeline, installs the sealing unit on water inlet end, can through sealing unit to the inside of water inlet end is sealed when disassembling and maintaining to valve body. This ball valve convenient to disassemble and maintain, through setting up sealing unit, when needing to disassemble and maintain valve body unit, can utilize sealing unit to the inside of water inlet end is sealed. Compared with traditional ball valve, need not to close the upstream valve of whole pipeline system, avoided the normal operation of whole pipeline system because of closing upstream valve and influenced, has improved the convenience of disassembly and maintenance greatly.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a ball valve that is easy to disassemble and maintain. Background Technology

[0002] In the field of fluid control, ball valves, as a common shut-off valve, are widely used in petroleum, chemical, and urban water supply and drainage systems.

[0003] Traditional ball valves typically require complete removal from the piping system for disassembly and maintenance. However, during disassembly, since the inlet and outlet ends of the ball valve are directly connected to the pipeline, fluid will leak from the point of removal, resulting in fluid waste, potential environmental pollution, and even safety hazards. While some ball valves incorporate simple sealing devices at both ends of the valve body, these devices are often complex, inconvenient to operate, and offer poor sealing performance, failing to meet practical application requirements. Therefore, there is an urgent need for a ball valve that is easy to disassemble and maintain while providing a reliable seal. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a ball valve that is easy to disassemble and maintain. This solves the problem that traditional ball valves typically require complete removal from the pipeline system for disassembly and maintenance. However, during disassembly, because the inlet and outlet ends of the ball valve are directly connected to the pipeline, fluid in the pipeline will leak from the disassembly point. This not only wastes fluid but may also pollute the surrounding environment and even cause safety accidents.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a ball valve that is easy to disassemble and maintain, comprising a valve body unit, wherein the two ends of the valve body unit are respectively connected to an inlet end and an outlet end via flanges, and the other ends of the inlet end and the outlet end are connected to a pipeline;

[0006] A sealing unit is installed on the water inlet end. When the valve body is disassembled and repaired, the inside of the water inlet end can be sealed by the sealing unit. The sealing unit includes a sealing seat, a sealing cavity, a sealing plate and a moving component. The sealing seat is embedded in the water inlet end, and the sealing cavity is opened between the sealing seat and the inside of the water inlet end. The moving component can drive the sealing plate to move inside the sealing cavity.

[0007] Preferably, the valve body unit includes a valve body body, a valve core, and a valve stem. A valve seat is fixedly connected to the inner wall of the valve body body. The valve core is rotatably disposed inside the valve body body. The valve stem is fixedly installed inside the valve core and is rotatably connected to the valve body body.

[0008] Preferably, the top end of the valve stem extends upward through the valve body and is fixedly connected to a handle.

[0009] Preferably, the end of the sealing plate has a through hole that extends through both sides, and the through hole is connected to the interior of the water inlet.

[0010] Preferably, the moving component includes two fixing strips, which are symmetrically fixedly connected to both sides of the sealing seat. A transmission cavity is formed between the interior of the fixing strip and the interior of the water inlet end. A transmission block is slidably connected to the inner wall of the transmission cavity, and the transmission block is fixedly connected to the outer side of the sealing plate.

[0011] Preferably, a lead screw is rotatably provided inside the transmission cavity, and the lead screw is threadedly connected to the transmission block.

[0012] Preferably, the end of the lead screw extends outward through the outer wall of the fixing bar and is fixedly connected to a knob.

[0013] Its beneficial effects are as follows:

[0014] 1. This ball valve, designed for easy disassembly and maintenance, features a sealing unit that seals the inlet end when disassembly is required. Compared to traditional ball valves, it eliminates the need to shut down upstream valves in the entire pipeline system, preventing disruptions to the system's operation and significantly improving the ease of disassembly and maintenance. For example, in urban water supply systems, when maintenance is needed on a particular ball valve, this valve ensures continued water supply to other areas, minimizing the impact of maintenance.

[0015] 2. This ball valve, which is easy to disassemble and maintain, features a moving component in the sealing unit that allows the sealing plate to move within the sealing cavity, making operation simple and convenient. Simply rotating the knob at the end of the screw drives the transmission block to move the sealing plate, achieving sealing and unsealing of the inlet end, thus reducing the operational difficulty for maintenance personnel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing unit at the water inlet end of this utility model.

[0020] In the diagram: 1. Valve body unit; 11. Valve body body; 12. Valve core; 13. Valve stem; 14. Handle; 2. Inlet end; 3. Outlet end; 4. Sealing unit; 41. Sealing seat; 42. Sealing cavity; 43. Sealing plate; 44. Through hole; 45. Moving component; 451. Fixing strip; 452. Transmission cavity; 453. Transmission block; 454. Lead screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] This utility model discloses a ball valve that is easy to disassemble and maintain, according to the appendix. Figure 1 and Figure 3 As shown, it includes a valve body unit 1, with an inlet end 2 and an outlet end 3 connected to both ends of the valve body unit 1 via flanges, and the other ends of the inlet end 2 and the outlet end 3 connected to a pipeline.

[0024] A sealing unit 4 is installed on the water inlet 2. When the valve body unit 1 is disassembled and repaired, the inside of the water inlet 2 can be sealed by the sealing unit 4. The sealing unit 4 includes a sealing seat 41, a sealing cavity 42, a sealing plate 43 and a moving component 45. The sealing seat 41 is embedded on the water inlet 2, and the sealing cavity 42 is opened between the sealing seat 41 and the inside of the water inlet 2. The moving component 45 can drive the sealing plate 43 to move inside the sealing cavity 42.

[0025] By incorporating sealing unit 4, the interior of the inlet end 2 can be sealed when the valve body unit 1 needs to be disassembled for maintenance. Compared to traditional ball valves, it eliminates the need to close the upstream valves of the entire pipeline system, avoiding disruption to the normal operation of the entire pipeline system due to upstream valve closure, and greatly improving the convenience of disassembly and maintenance. For example, in urban water supply systems, when a ball valve needs maintenance, using this ball valve can ensure normal water supply to other areas, reducing the impact of maintenance.

[0026] The moving component 45 of the sealing unit 4 can move the sealing plate 43 within the sealing cavity 42, making operation simple and convenient. By simply rotating the knob at the end of the lead screw 454, the transmission block 453 can be driven to move the sealing plate 43, thereby sealing and releasing the water inlet 2, reducing the operational difficulty for maintenance personnel.

[0027] According to the appendix Figure 2 As shown, the valve body unit 1 further includes a valve body body 11, a valve core 12 and a valve stem 13. A valve seat is fixedly connected to the inner wall of the valve body body 11. The valve core 12 is rotatably disposed inside the valve body body 11. The valve stem 13 is fixedly installed inside the valve core 12 and is rotatably connected to the valve body body 11.

[0028] The top of the valve stem 13 extends upward through the valve body 11 and is fixedly connected to the handle 14.

[0029] According to the appendix Figure 3 As shown, the sealing plate 43 further has through holes 44 on both sides at its end, and the through holes 44 are connected to the interior of the water inlet 2.

[0030] The moving component 45 includes two fixing bars 451, which are symmetrically fixedly connected to both sides of the sealing seat 41. A transmission cavity 452 is provided between the interior of the fixing bar 451 and the interior of the water inlet 2. A transmission block 453 is slidably connected to the inner wall of the transmission cavity 452, and the transmission block 453 is fixedly connected to the outer side of the sealing plate 43.

[0031] A lead screw 454 is rotatably mounted inside the transmission cavity 452, and the lead screw 454 is threadedly connected to the transmission block 453. The end of the lead screw 454 extends outward through the outer wall of the fixing strip 451 and is fixedly connected to a knob.

[0032] The sealing seat 41 is embedded in the water inlet 2, forming a sealing cavity 42 between itself and the interior of the water inlet 2. The sealing plate 43 moves within the sealing cavity 42, allowing it to fit tightly with the sealing seat 41 to form a reliable seal. When the sealing plate 43 moves to the sealing position, its end is in close contact with the sealing seat 41, effectively preventing fluid leakage.

[0033] The lead screw 454 is threadedly connected to the transmission block 453 and has a self-locking function. After the sealing plate 43 moves to the sealing position, the lead screw 454 can automatically lock to prevent the sealing plate 43 from moving due to fluid pressure or other external forces, thus ensuring the stability of the seal.

[0034] When the ball valve is working normally, the sealing plate 43 is in its initial position, and the through hole 44 at its end is connected to the interior of the inlet end 2. At this time, fluid can flow in from the inlet end 2, pass through the valve core 12 of the valve body unit 1, and flow out from the outlet end 3, realizing normal fluid delivery. The valve stem 13 is fixedly connected to the valve core 12. By rotating the valve stem 13 through the handle 14, the valve core 12 can be rotated within the valve body 11, thereby controlling the opening and closing of the ball valve.

[0035] When valve body unit 1 needs to be disassembled and repaired, first rotate the knob at the end of the lead screw 454. The lead screw 454 rotates within the transmission cavity 452. Since the lead screw 454 is threadedly connected to the transmission block 453, the transmission block 453 will slide along the inner wall of the transmission cavity 452. The transmission block 453 is fixedly connected to the outer side of the sealing plate 43, so the sealing plate 43 will move within the sealing cavity 42 as the transmission block 453 moves.

[0036] As the sealing plate 43 moves, the through hole 44 at its end gradually shifts away from the interior of the inlet end 2. When the sealing plate 43 moves to the sealing position, the through hole 44 is completely sealed by the sealing seat 41. At this time, the interior of the inlet end 2 is sealed by the sealing plate 43, and the fluid in the pipeline cannot flow out from the inlet end 2. At this point, maintenance personnel can safely disassemble the valve body unit 1 from the inlet end 2 and the outlet end 3 for maintenance.

[0037] After maintenance, rotate the knob in the opposite direction, the lead screw 454 rotates in the opposite direction, the transmission block 453 drives the sealing plate 43 to move in the opposite direction, the through hole 44 reconnects with the inside of the water inlet 2, the seal on the water inlet 2 is released, and the ball valve returns to normal working condition.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ball valve that is easy to disassemble and maintain, comprising a valve body unit (1), characterized in that, The valve body unit (1) has an inlet end (2) and an outlet end (3) connected to its two ends by flanges, and the other ends of the inlet end (2) and the outlet end (3) are connected to pipelines. A sealing unit (4) is installed on the water inlet (2). When the valve body unit (1) is disassembled and repaired, the inside of the water inlet (2) can be sealed by the sealing unit (4). The sealing unit (4) includes a sealing seat (41), a sealing cavity (42), a sealing plate (43), and a moving component (45). The sealing seat (41) is embedded in the water inlet (2), and the sealing cavity (42) is opened between the sealing seat (41) and the inside of the water inlet (2). The moving component (45) can drive the sealing plate (43) to move inside the sealing cavity (42).

2. The ball valve for easy disassembly and maintenance according to claim 1, characterized in that, The valve body unit (1) includes a valve body body (11), a valve core (12) and a valve stem (13). A valve seat is fixedly connected to the inner wall of the valve body body (11). The valve core (12) is rotatably disposed inside the valve body body (11). The valve stem (13) is fixedly installed inside the valve core (12) and is rotatably connected to the valve body body (11).

3. A ball valve for easy disassembly and maintenance according to claim 2, characterized in that, The top of the valve stem (13) extends upward through the valve body (11) and is fixedly connected to a handle (14).

4. The ball valve for easy disassembly and maintenance according to claim 1, characterized in that, The sealing plate (43) has a through hole (44) at its end, which is connected to the interior of the water inlet (2).

5. A ball valve for easy disassembly and maintenance according to claim 1, characterized in that, The moving component (45) includes two fixing bars (451), which are symmetrically fixedly connected to both sides of the sealing seat (41). A transmission cavity (452) is provided between the interior of the fixing bar (451) and the interior of the water inlet (2). A transmission block (453) is slidably connected to the inner wall of the transmission cavity (452), and the transmission block (453) is fixedly connected to the outer side of the sealing plate (43).

6. A ball valve for easy disassembly and maintenance according to claim 5, characterized in that, The transmission cavity (452) is rotatably equipped with a lead screw (454), and the lead screw (454) is threadedly connected to the transmission block (453).

7. A ball valve for easy disassembly and maintenance according to claim 6, characterized in that, The end of the lead screw (454) extends outward through the outer wall of the fixing bar (451) and is fixedly connected to a knob.

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