Ball valve convenient to detect

Abstract

The ball valve convenient to detect comprises a valve body, a valve cavity is formed in the valve body, an installation cavity is formed in the top of the valve body, a valve rod is arranged in the installation cavity, a valve element is arranged at the bottom of the valve rod, a left connecting sleeve is arranged on the left side of the valve cavity in a communicating mode, and a right connecting sleeve is arranged on the right side of the valve cavity in a communicating mode. The valve body, the left connecting sleeve and the right connecting sleeve are of an integrated structure, a left check ring is integrally arranged on the left side of the valve cavity, a right check ring is detachably arranged on the right side of the valve cavity, a left sealing sleeve is arranged on the inner side of the left check ring, and a right sealing sleeve is arranged on the inner side of the right check ring. The concentricity between the outer diameter of the annular table and the inner diameter of the right connecting sleeve and the height difference between the outer diameter of the annular table and the outer diameter of the right connecting sleeve are visually observed, so that whether the outer diameter and the inner diameter of the right connecting sleeve are concentric or not can be directly observed in a visual observation mode, and whether the outer diameter and the inner diameter thickness of the right connecting sleeve are uniform or not can be observed; therefore, whether the eccentricity phenomenon exists in the valve body machining process can be observed more visually.

Description

Technical Field

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

[0002] Ball valves are mainly used to cut off or connect fluid media, and can also be used for the regulation and control of fluid media. Therefore, ball valves are widely used in pipeline systems.

[0003] For example, a ball valve according to Chinese Patent Publication No. CN219139885U includes: a valve body assembly; a valve core; a rotating component; and an operating component. The valve core is movably disposed inside the valve body assembly, the rotating component is movably mounted on the valve body assembly, and one end of the rotating component is tractably connected to the valve core. The operating component is operably connected to the other end of the rotating component. The rotating component includes a ball valve stem, a valve stem sealing ring, a valve stem ring, and a valve stem nut. The ball valve stem is mounted on the valve body assembly from the outside in. The valve stem sealing ring is mounted on one end of the valve stem. The valve stem ring is nested in the ball valve stem. The valve stem nut is nested in the valve stem and is fixedly mounted on the valve body assembly.

[0004] The patented ball valve features hexagonal nut structures on both outer walls. This structure makes it difficult to visually inspect the uniformity of the valve body wall thickness, resulting in inconvenience in inspection, increased material usage, and higher production costs. Furthermore, to prevent purchasing substandard products, users must inspect the uniformity of the valve body wall thickness, but most users lack the necessary testing tools, further complicating the inspection process. Additionally, the patented ball valve's split-type structure not only increases processing costs but also introduces numerous connection points and leakage points, leading to lower valve body sealing performance.

[0005] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content

[0006] The present invention provides a ball valve that is easy to test, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A ball valve for easy inspection includes a valve body with a valve cavity inside. A mounting cavity is located at the top of the valve body, and a valve stem is located within the mounting cavity. A valve core is located at the bottom of the valve stem. A left connecting sleeve is connected to the left side of the valve cavity, and a right connecting sleeve is connected to the right side of the valve cavity. The valve body, the left connecting sleeve, and the right connecting sleeve are integrally formed. A left retaining ring is integrally formed on the left side of the valve cavity, and a right retaining ring is detachably formed on the right side of the valve cavity. A left sealing sleeve is located inside the left retaining ring, and a right sealing sleeve is located inside the right retaining ring. A sealing ring 1 is located outside the left sealing sleeve, and two sealing ring 1s are located outside the right sealing sleeve. A fluid passage hole is located inside the valve core. The outer diameter of the left connecting sleeve is a hexagonal bolt structure, and the outer diameter of the right connecting sleeve is a circular structure. An annular platform is located at the end of the right connecting sleeve facing away from the valve cavity. The outer diameter of the annular platform and the inner diameter of the right connecting sleeve are concentric circles. A retaining groove is formed on the inner wall of the connection between the right connecting sleeve and the valve cavity, and a retaining ring is located within the retaining groove.

[0009] Preferably, two limiting blocks are provided on both sides of the top of the mounting cavity, the top edges of the limiting blocks are all inclined structures, and an arc-shaped opening is provided between the limiting blocks.

[0010] Preferably, the outer diameter of the right connecting sleeve is 0.1 mm smaller than the outer diameter of the annular platform.

[0011] Preferably, the outer wall of the valve stem is fitted with a plurality of sealing rings II, and the plurality of sealing rings II are all in contact with the inner wall of the mounting cavity.

[0012] Preferably, the outer wall of the right connecting sleeve is provided with a plurality of reinforcing ribs arranged in a circular array along the center.

[0013] Preferably, the retaining ring is an arrow-shaped retaining ring, and the retaining ring has a circular arc-shaped surface.

[0014] Beneficial effects

[0015] The ball valve provided in this embodiment of the present invention, which is easy to test, has at least one of the following technical effects:

[0016] This utility model, through the above-mentioned technical solution, allows for direct visual inspection of the concentricity between the outer diameter of the annular platform and the inner diameter of the right connecting sleeve, as well as the height difference between them. This enables the observation of whether the outer and inner diameters of the right connecting sleeve are concentric, and thus the uniformity of their thickness. This allows for a more intuitive observation of whether there is any eccentricity in the valve body processing. When an error is detected visually, a measuring tool is used for further measurement, making the inspection more accurate and reducing the rate of defective products. Furthermore, users do not need to use inspection tools when purchasing this product; they can perform a rough inspection of the valve body wall visually to prevent the purchase of defective products. Since the outer diameter of the right connecting sleeve is circular, the production cost is reduced compared to the traditional hexagonal nut-type structure. Moreover, the use of a retaining ring to limit the right retaining ring avoids the problem of deformation that is common with traditional retaining rings. Attached Figure Description

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

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] 1. Valve body; 2. Valve cavity; 3. Mounting cavity; 4. Valve stem; 5. Valve core; 6. Left connecting sleeve; 7. Right connecting sleeve; 8. Left retaining ring; 9. Right retaining ring; 10. Left sealing sleeve; 11. Right sealing sleeve; 12. Sealing ring one; 13. Fluid passage hole; 14. Annular platform; 15. Snap groove; 16. Snap ring; 17. Sealing ring two; 18. Reinforcing rib; 19. Limiting block. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. 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] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", 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.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-2 As shown, it is a structural schematic diagram of a ball valve that is easy to test according to a preferred embodiment of the present invention;

[0025] In this embodiment, a valve body 1 is included, with a valve cavity 2 inside. A mounting cavity 3 is located at the top of the valve body 1, communicating with the valve cavity 2. A valve stem 4 is located within the mounting cavity 3, and a valve core 5 is located at the bottom of the valve stem 4. A left connecting sleeve 6 is connected to the left side of the valve cavity 2, and a right connecting sleeve 7 is connected to the right side of the valve cavity 2. The valve core 2 is positioned between the left sealing sleeve 10 and the right sealing sleeve 11, which enhance the sealing between the valve core 5 and the valve cavity 2. The valve body 1, the left connecting sleeve 6, and the right connecting sleeve 7 form an integrated structure. This integrated structure simplifies the processing steps, reduces processing costs, and minimizes connection points and leakage points, thus improving the product's integrity and sealing performance. A left retaining ring 8 is integrally provided on the left side of the valve cavity 2, and a right retaining ring 8 is detachably provided on the right side of the valve cavity 2. The left retaining ring 8 has a left sealing sleeve 10 inside and a right sealing sleeve 11 inside. The left sealing sleeve 10 has a sealing ring 12 outside and the right sealing sleeve 11 has two sealing rings 12 outside. The valve core 5 has a liquid passage hole 13 inside. Rotating the valve rod 4 causes the valve core 5 to rotate so that the liquid passage hole 12 and the valve cavity 2 are aligned and connected, realizing the ball valve to pass liquid. Rotating the valve rod 4 causes the valve core 5 to rotate so that the two ends of the liquid passage hole 12 are offset from the axis of the valve cavity 2, so that the ball valve does not pass liquid. The outer diameter of the left connecting sleeve 6 is a hexagonal bolt structure and the outer diameter of the right connecting sleeve 7 is a circular structure. The end of the right connecting sleeve 7 away from the valve cavity 2 has an annular platform 14. The outer diameter of the annular platform 14 and the inner diameter of the right connecting sleeve 7 are concentric circles. The inner wall of the connection between the right connecting sleeve 7 and the valve cavity 2 has a groove 15, and a retaining ring 16 is provided in the groove 15.

[0026] In this embodiment, two limiting blocks 19 are provided on both sides of the top of the mounting cavity 3. The top edges of the limiting blocks 19 are all inclined structures, and an arc-shaped opening is provided between the limiting blocks 19. The inclined structure of the limiting blocks 19 makes it easy for the valve body 1 to be inserted into the actuator when connected to the actuator, and to be limited and fixed by the limiting blocks 19.

[0027] In this embodiment, the outer diameter of the right connecting sleeve 7 is 0.1 mm smaller than the outer diameter of the annular platform 14. By visually inspecting the height difference between the outer diameter of the annular platform 14 and the outer diameter of the right connecting sleeve 7, it is possible to directly observe whether the outer and inner diameters of the right connecting sleeve 7 are concentric, thereby observing whether the thickness of the outer and inner diameters of the right connecting sleeve 7 is uniform.

[0028] In this embodiment, a plurality of sealing rings 17 are fitted onto the outer wall of the valve stem 4, and all of the sealing rings 17 are in contact with the inner wall of the mounting cavity 3. The sealing between the valve stem 4 and the mounting cavity 3 is enhanced by the sealing rings 17.

[0029] In this embodiment, the outer wall of the right connecting sleeve 7 is provided with a plurality of reinforcing ribs 18 arranged in a circular array along the center. The strength of the right connecting sleeve 7 is improved by the plurality of reinforcing ribs 18.

[0030] In this embodiment, the retaining ring 16 is an arrow-shaped retaining ring with a rounded surface. This type of retaining ring 14 is less prone to deformation during use, avoiding the loosening and deformation of traditional retaining rings that could lead to loosening of internal components of the valve body 1. The retaining ring 16 is applicable to similar products other than those described in this embodiment.

[0031] This utility model provides a ball valve that is easy to test. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented.

[0032] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A ball valve that is easy to inspect, comprising a valve body (1), characterized in that: The valve body (1) has a valve cavity (2) inside, and a mounting cavity (3) is provided at the top of the valve body (1). A valve stem (4) is provided in the mounting cavity (3), and a valve core (5) is provided at the bottom of the valve stem (4). A left connecting sleeve (6) is provided on the left side of the valve cavity (2), and a right connecting sleeve (7) is provided on the right side of the valve cavity (2). The valve body (1), the left connecting sleeve (6), and the right connecting sleeve (7) are an integral structure. A left retaining ring (8) is integrally provided on the left side of the valve cavity (2), and a right retaining ring (9) is detachably provided on the right side of the valve cavity (2). A left sealing sleeve (10) is provided inside the left retaining ring (8), and a right sealing sleeve (10) is provided inside the right retaining ring (9). The left sealing sleeve (10) has a sealing ring (12) on its outer side, and the right sealing sleeve (11) has two sealing rings (12) on its outer side. The valve core (5) has a liquid passage hole (13). The outer diameter of the left connecting sleeve (6) is a hexagonal bolt structure, and the outer diameter of the right connecting sleeve (7) is a circular structure. The right connecting sleeve (7) has an annular platform (14) at one end away from the valve cavity (2). The outer diameter of the annular platform (14) and the inner diameter of the right connecting sleeve (7) are concentric circles. The inner wall of the connection between the right connecting sleeve (7) and the valve cavity (2) has a slot (15), and a retaining ring (16) is provided in the slot (15).

2. The ball valve for easy testing according to claim 1, characterized in that: The mounting cavity (3) has two limiting blocks (19) on both sides of its top. The top edges of the limiting blocks (19) are all inclined structures, and there is an arc-shaped opening between the limiting blocks (19).

3. The ball valve for easy testing according to claim 1, characterized in that: The outer diameter of the right connecting sleeve (7) is 0.1 mm smaller than the outer diameter of the annular platform (14).

4. The ball valve for easy testing according to claim 1, characterized in that: The valve stem (4) is fitted with a plurality of sealing rings (17) on its outer wall, and the plurality of sealing rings (17) are all in contact with the inner wall of the mounting cavity (3).

5. A ball valve for easy testing according to claim 1, characterized in that: The outer wall of the right connecting sleeve (7) is provided with several reinforcing ribs (18) arranged in a circular array along the center.

6. The ball valve for easy testing according to claim 1, characterized in that: The retaining ring (16) is an arrow-shaped retaining ring, and the retaining ring (16) has a circular arc surface.

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