Directly-buried welded ball valve

Abstract

The utility model relates to a direct burial type welding ball valve which comprises a valve body, a round cylinder is fixedly connected to the upper end face of the valve body, a lifting cylinder is connected into the round cylinder in a sliding mode, limiting mechanisms are arranged on the two sides of the round cylinder, and a ball body is arranged in the valve body. A second rotating rod penetrating through the valve body and rotationally connected with the penetrating part through a bearing is arranged at the bottom end in the circular barrel, a square barrel is fixedly connected to the upper end of the second rotating rod, a square sliding rod is slidably connected into the square barrel, and a first rotating rod penetrating through the lifting barrel and rotationally connected with the penetrating part through a bearing is fixedly connected to the upper end of the square sliding rod; the upper end of the first rotating rod is fixedly connected with a hand wheel. According to the directly-buried welded ball valve, the overall use height of the valve body can be adjusted according to requirements, and the directly-buried welded ball valve is practical.

Description

Technical Field

[0001] The utility model relates to the technical field of welded ball valves, in particular to a directly buried welded ball valve. Background Art

[0002] Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. They can be closed tightly by simply rotating 90 degrees and using a very small torque. Ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and they occupy a pivotal position in the national economy.

[0003] However, the existing ball valves are generally fixed in one piece, and the overall height of the ball valve is fixed. When the ball valve needs to be buried underground, it cannot be adjusted according to the burial depth, which has certain limitations. For this reason, we propose a direct buried welded ball valve. Utility Model Content

[0004] The utility model provides a directly buried welded ball valve, which solves the technical problems raised by the background technology in the prior art.

[0005] The utility model solves the above-mentioned technical problems as follows: it comprises a valve body, the upper end face of the valve body is fixedly connected with a circular cylinder, a lifting cylinder is slidably connected inside the circular cylinder, limiting mechanisms are arranged on both sides of the circular cylinder, a sphere is arranged inside the valve body, a rotating rod 2 is arranged at the bottom end of the circular cylinder, which penetrates the valve body and is rotatably connected to the penetrating part through a bearing, the upper end of the rotating rod 2 is fixedly connected with a square cylinder, a square sliding rod is slidably connected inside the square cylinder, the upper end of the square sliding rod is fixedly connected with a rotating rod 1 which penetrates the lifting cylinder and is rotatably connected to the penetrating part through a bearing, and the upper end of the rotating rod 1 is fixedly connected with a hand wheel.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the lower ends of the two rotating rods are fixedly connected to the upper end of the sphere, and both ends of the valve body are provided with connecting pipes that penetrate the valve body and are fixedly connected to the penetrating parts. The circumferential inner wall of the connecting pipe is fixedly connected with a sealing ring, and the sealing ring is in contact with the sphere.

[0008] Furthermore, the lower end surface of the valve body is fixedly connected to two supporting seats.

[0009] Furthermore, the limiting mechanism includes a limiting plate fixedly connected to the surface of the circular cylinder, and a plurality of threaded holes are formed on one side of the limiting plate.

[0010] Furthermore, one side of the limiting plate is slidably connected to an L-shaped plate, and one end of the L-shaped plate is fixedly connected to the surface of the lifting cylinder.

[0011] Furthermore, a positioning bolt penetrating the L-shaped plate and threadedly connected to the penetrating portion is disposed on the surface of the L-shaped plate, and the positioning bolt is threadedly connected to the inside of the corresponding threaded hole.

[0012] Furthermore, a limiting sliding groove is provided inside the limiting plate, a limiting rod is slidably connected inside the limiting sliding groove, and an upper end of the limiting rod is fixedly connected to the L-shaped plate.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a directly buried welded ball valve, which has the following advantages:

[0014] Through the cooperation among the handwheel, limit mechanism, rotating rod one, rotating rod two, square sliding rod, square cylinder, lifting cylinder and round cylinder, the height of the entire valve body can be adjusted as needed to avoid the installation and use of the valve body being affected by insufficient height, thereby improving practicality.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of a direct buried welded ball valve provided in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 A schematic cross-sectional view of the structure of a direct buried welded ball valve is provided;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of a local structure in a direct buried welded ball valve is provided;

[0020] Figure 4 for Figure 2 A schematic top view and cross-sectional view of a local structure in a direct-buried welded ball valve is provided.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Pipe connection; 2. Valve body; 3. Support seat; 4. L-shaped plate; 5. Limit rod; 6. Positioning bolt; 7. Limit plate; 8. Round cylinder; 9. Lifting cylinder; 10. Hand wheel; 11. Rotating rod 1; 12. Square slide rod; 13. Square cylinder; 14. Rotating rod 2; 15. Ball; 16. Threaded hole; 17. Limiting slide groove. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] like Figure 1-4 As shown, the utility model provides a directly buried welded ball valve, including a valve body 2, a circular cylinder 8 is fixedly connected to the upper end surface of the valve body 2, a lifting cylinder 9 is slidably connected inside the circular cylinder 8, limiting mechanisms are arranged on both sides of the circular cylinder 8, a sphere 15 is arranged inside the valve body 2, a rotating rod 14 is arranged at the bottom end of the circular cylinder 8, which penetrates the valve body 2 and is rotatably connected to the penetrating part through a bearing, a square cylinder 13 is fixedly connected to the upper end of the rotating rod 14, a square slide rod 12 is slidably connected inside the square cylinder 13, a rotating rod 11 is fixedly connected to the upper end of the square slide rod 12, a rotating rod 11 is penetrated through the lifting cylinder 9 and is rotatably connected to the penetrating part through a bearing, and a hand wheel 10 is fixedly connected to the upper end of the rotating rod 11.

[0027] Preferably, the lower end of the rotating rod 14 is fixedly connected to the upper end of the ball 15, and both ends of the valve body 2 are provided with a connecting pipe 1 that penetrates the valve body 2 and is fixedly connected to the penetrating part. The circumferential inner wall of the connecting pipe 1 is fixedly connected with a sealing ring, and the sealing ring is in contact with the ball (15). The setting of the connecting pipe 1 can enable the valve body 2 to be connected to other pipelines.

[0028] Preferably, two support seats 3 are fixedly connected to the lower end surface of the valve body 2, and the arrangement of the support seats 3 can play a supporting effect.

[0029] Preferably, the limiting mechanism comprises a limiting plate 7 fixedly connected to the surface of the circular cylinder 8 , and a plurality of threaded holes 16 are formed on one side of the limiting plate 7 .

[0030] Preferably, one side of the limiting plate 7 is slidably connected to an L-shaped plate 4 , and one end of the L-shaped plate 4 is fixedly connected to the surface of the lifting cylinder 9 .

[0031] Preferably, the surface of the L-shaped plate 4 is provided with a positioning bolt 6 that passes through the L-shaped plate 4 and is threadedly connected to the passing portion. The positioning bolt 6 is threadedly connected to the internal of the corresponding threaded hole 16. The L-shaped plate 4 can be connected to the limiting plate 7 by the provided positioning bolt 6.

[0032] Preferably, a limiting slot 17 is provided inside the limiting plate 7, and a limiting rod 5 is slidably connected inside the limiting slot 17. The upper end of the limiting rod 5 is fixedly connected to the L-shaped plate 4. The setting of the limiting rod 5 can limit the sliding of the L-shaped plate 4.

[0033] The specific working principle and use method of the utility model are as follows:

[0034] The utility model provides a directly buried welded ball valve. When it is used, when it is necessary to adjust the overall height of the valve body 2, the positioning bolt 6 is rotated and removed, and then the hand wheel 10 can be directly pulled up, and the lifting cylinder 9 is driven to slide inside the circular cylinder 8 under the action of the rotating rod 11, and then the square sliding rod 12 is made to slide inside the square cylinder 13, which will also drive the L-shaped plate 4 to slide. When the L-shaped plate 4 slides, it can be limited and slid under the action of the limiting slide groove 17 and the limiting rod 5. When the height of the hand wheel 10 is adjusted to the height required for use, the positioning bolt 6 is installed, and the positioning bolt 6 is connected to the corresponding threaded hole 16 at this time, so that the L-shaped plate 4 is limitedly connected with the limiting plate 7, so that the hand wheel 10 after the height adjustment is limited, thereby completing the limit adjustment process of the use height of the entire valve body 2.

[0035] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A directly buried welded ball valve, comprising a valve body (2), characterized in that: The upper end surface of the valve body (2) is fixedly connected with a circular cylinder (8), and a lifting cylinder (9) is slidably connected inside the circular cylinder (8). Limiting mechanisms are arranged on both sides of the circular cylinder (8). A spherical body (15) is arranged inside the valve body (2). A rotating rod (14) that penetrates the valve body (2) and is rotatably connected to the penetrating portion via a bearing is arranged at the bottom end inside the circular cylinder (8). The upper end of the rotating rod (14) is fixedly connected with a square cylinder (13). The inside of the square cylinder (13) is slidably connected with a square sliding rod (12). The upper end of the square sliding rod (12) is fixedly connected with a rotating rod (11) that penetrates the lifting cylinder (9) and is rotatably connected to the penetrating portion via a bearing. The upper end of the rotating rod (11) is fixedly connected with a hand wheel (10).

2. According to claim 1, a direct buried welded ball valve is characterized in that: The lower end of the second rotating rod (14) is fixedly connected to the upper end of the spherical body (15), and both ends of the valve body (2) are provided with a connecting pipe (1) that penetrates the valve body (2) and is fixedly connected to the penetrating portion. The circumferential inner wall of the connecting pipe (1) is fixedly connected to a sealing ring, and the sealing ring is in contact with the spherical body (15).

3. According to claim 1, a direct buried welded ball valve is characterized in that: The lower end surface of the valve body (2) is fixedly connected to two support seats (3).

4. According to claim 1, a direct buried welded ball valve is characterized in that: The limiting mechanism comprises a limiting plate (7) fixedly connected to the surface of the circular cylinder (8), and a plurality of threaded holes (16) are formed on one side of the limiting plate (7).

5. A directly buried welded ball valve according to claim 4, characterized in that: One side of the limit plate (7) is slidably connected to an L-shaped plate (4), and one end of the L-shaped plate (4) is fixedly connected to the surface of the lifting cylinder (9).

6. A directly buried welded ball valve according to claim 5, characterized in that: The surface of the L-shaped plate (4) is provided with a positioning bolt (6) which penetrates the L-shaped plate (4) and is threadedly connected to the penetration portion; the positioning bolt (6) is threadedly connected to the inside of the corresponding threaded hole (16).

7. A directly buried welded ball valve according to claim 5, characterized in that: The limiting plate (7) has a limiting sliding groove (17) disposed inside, the limiting sliding groove (17) is slidably connected to the limiting rod (5), and the upper end of the limiting rod (5) is fixedly connected to the L-shaped plate (4).

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