Forged steel stop valve

Abstract

The utility model relates to the technical field of stop valves, in particular to a forged steel stop valve which comprises a stop valve body and fixed pipes, the fixed pipes are fixedly connected to the two ends of the stop valve body respectively, movable pipes are arranged on the two sides of the stop valve body respectively, and annular grooves are formed in the side walls of the sides, close to the stop valve body, of the movable pipes. One end of the fixing pipe away from the stop valve body is inserted into the annular groove. By arranging the flange plate, the movable pipe, the annular groove, the fixed pipe and the connecting mechanism, when the forged steel stop valve piece is fixedly installed, the flange plate can be in butt joint with an external pipeline through movement of the movable pipe, then the relative position between the movable pipe and the fixed pipe is fixed by rotating a nut on the connecting mechanism, and therefore the forged steel stop valve piece is fixedly installed. Therefore, the forged steel stop valve can be fixed and installed conveniently, and the operation is convenient. The utility model has the advantage of being convenient to fix, install and operate.

Description

Technical Field

[0001] The utility model relates to a stop valve, in particular to a forged steel stop valve. Background Art

[0002] The forged steel stop valve has a relatively short opening or closing stroke, and has a very reliable cut-off function. Since the change of the valve seat opening is proportional to the stroke of the valve disc, it is very suitable for regulating the flow. Therefore, the forged steel stop valve is very suitable for use as a cut-off, regulating and throttling valve.

[0003] When installing the forged steel stop valve in the prior art, the connection is achieved through the flange plates installed on both sides. Because the flange plates on both sides are fixedly connected to the forged steel stop valve, the length of the pipelines on both sides needs to be controlled during the actual installation process to ensure the stability of the installation of the forged steel stop valve, which makes the installation operation of the forged steel stop valve inconvenient. Therefore, the utility model proposes a forged steel stop valve. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a forged steel stop valve to overcome the deficiencies of the prior art.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A forged steel stop valve comprises a stop valve body, both ends of the stop valve body are fixedly connected with fixed pipes, both sides of the stop valve body are provided with movable pipes, an annular groove is provided on the side wall of the movable pipe close to the stop valve body, the end of the fixed pipe away from the stop valve body is inserted into the annular groove, a connecting mechanism is provided between the stop valve body and the movable pipe, the end of the movable pipe away from the stop valve body is fixedly connected with a flange plate, and a positioning ring is fixedly connected to the outer side wall of the flange plate.

[0007] As a preferred technical solution of the utility model, the stop valve body includes a valve housing, the inner cavity of the valve housing is provided with a valve disc, a valve stem is installed at the center of the top surface of the valve disc, the top end of the valve stem passes through the top surface of the valve housing and is fixedly connected to a runner, a vertical pipe is sleeved on the side wall of the valve stem, the vertical pipe is fixedly connected to the outer side wall of the valve housing, a mounting plate is installed on the upper side of the vertical pipe, a top plate is fixedly connected to the top surface of the mounting plate, and the top plate is movably connected to the valve stem.

[0008] As a preferred technical solution of the utility model, the connecting mechanism includes side plates, and a plurality of side plates are evenly distributed and fixedly connected to the outer side wall of the stop valve body near both ends, and a plurality of side plates are evenly distributed and fixedly connected to the outer side wall of the movable tube near the stop valve body. The same threaded rod passes through two adjacent side plates, and the threaded rod is threadedly connected with nuts on both sides of the side plates.

[0009] As a preferred technical solution of the utility model, the inner side wall of the positioning ring is arranged in an arc shape away from the side of the stop valve body.

[0010] As a preferred technical solution of the utility model, a first sealing ring is fixedly connected to the inner side wall of the annular groove.

[0011] As a preferred technical solution of the utility model, a second sealing ring is fixedly connected to the side wall of the flange plate on the side away from the stop valve body.

[0012] The embodiment of the utility model provides a forged steel stop valve, which has the following beneficial effects:

[0013] 1. The utility model is provided with a flange plate, a movable pipe, an annular groove, a fixed pipe and a connecting mechanism. When the forged steel stop valve is fixedly installed, the flange plate can be butted against the external pipeline by moving the movable pipe, and then the relative position between the movable pipe and the fixed pipe can be fixed by rotating the nut on the connecting mechanism, so that the fixed installation operation of the forged steel stop valve can be conveniently realized, and the operation is convenient;

[0014] 2. The utility model is provided with a positioning ring, a first sealing ring and a second sealing ring. When the forged steel stop valve is docked and installed, the positioning ring can be used to conveniently achieve docking with the classification on the external pipeline, and the positioning ring is used for limiting, thereby further improving the convenience of installation of the forged steel stop valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model at an angle;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0018] Figure 3 It is a schematic diagram of the internal cross-section three-dimensional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the movable tube of the utility model.

[0020] In the figure: 1. stop valve body; 2. fixed pipe; 3. movable pipe; 4. annular groove; 5. flange plate; 6. positioning ring; 7. valve housing; 8. valve disc; 9. valve stem; 10. runner; 11. vertical pipe; 12. mounting plate; 13. top plate; 14. side plate; 15. threaded rod; 16. nut; 17. first sealing ring; 18. second sealing ring. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1-4 As shown, a forged steel stop valve comprises a stop valve body 1, the stop valve body 1 comprises a valve housing 7, the inner cavity of the valve housing 7 is provided with a valve disc 8, a valve stem 9 is installed at the center of the top surface of the valve disc 8, the top end of the valve stem 9 penetrates the top surface of the valve housing 7 and is fixedly connected with a runner 10, a vertical pipe 11 is sleeved on the side wall of the valve stem 9, the vertical pipe 11 is fixedly connected with the outer side wall of the valve housing 7, a mounting plate 12 is installed on the upper side of the vertical pipe 11, a top plate 13 is fixedly connected to the top surface of the mounting plate 12, and the top plate 13 is movably connected with the valve stem 9 to realize the function of the stop valve;

[0023] Both ends of the stop valve body 1 are fixedly connected with fixed pipes 2, and both sides of the stop valve body 1 are provided with movable pipes 3. An annular groove 4 is provided on the side wall of the movable pipe 3 close to the stop valve body 1, and the end of the fixed pipe 2 away from the stop valve body 1 is inserted into the annular groove 4, which can adapt to the fixed installation operation of pipelines with different spacings;

[0024] Among them, a first sealing ring 17 is fixedly connected to the inner side wall of the annular groove 4 to improve the sealing between the fixed pipe 2 and the annular groove 4;

[0025] A connection mechanism is provided between the stop valve body 1 and the movable tube 3, and the connection mechanism includes a side plate 14. A plurality of side plates 14 are evenly distributed and fixedly connected to the outer wall of the stop valve body 1 near both ends, and a plurality of side plates 14 are evenly distributed and fixedly connected to the outer wall of the movable tube 3 near the side of the stop valve body 1. A same threaded rod 15 runs through two adjacent side plates 14, and the threaded rod 15 is located at both sides of the side plate 14 and is threadedly connected to nuts 16, so as to realize the positioning and fixing of the fixed tube 2 and the movable tube 3.

[0026] The end of the movable tube 3 away from the stop valve body 1 is fixedly connected with a flange plate 5, and the outer wall of the flange plate 5 is fixedly connected with a positioning ring 6. The inner wall of the positioning ring 6 away from the stop valve body 1 is arranged in an arc shape, which can realize the positioning installation operation and improve the convenience of installation;

[0027] A second sealing ring 18 is fixedly connected to the side wall of the flange plate 5 away from the stop valve body 1 to improve the sealing performance of the flange plate 5 .

[0028] Working principle: When the device of the utility model is in use, a fixed flange matching the flange plate 5 is first fixed on the external pipeline, and then the stop valve body 1 is placed between the two pipelines. The movable tube 3 is pushed and the positioning ring 6 is connected to the external fixed flange to achieve installation and positioning. The external bolts penetrate the holes on the flange plate 5 to achieve fixed installation between the flange plate 5 and the external pipeline. The threaded rod 15 is penetrated on the side plate 14, and the nut 16 on the threaded rod 15 is rotated. The nut 16 is used to achieve positioning between the side plate 14 and the threaded rod 15, thereby achieving positioning and installation between the fixed tube 2 and the movable tube 3. This allows the device to achieve installation of the stop valve body 1 between pipelines with different spacings, which is convenient for fixed installation of forged steel stop valves.

[0029] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A forged steel stop valve, comprising a stop valve body (1), characterized in that: Both ends of the stop valve body (1) are fixedly connected to fixed pipes (2), and both sides of the stop valve body (1) are provided with movable pipes (3). An annular groove (4) is provided on the side wall of the movable pipe (3) close to the stop valve body (1), and the end of the fixed pipe (2) away from the stop valve body (1) is inserted into the annular groove (4). A connecting mechanism is provided between the stop valve body (1) and the movable pipe (3), and the end of the movable pipe (3) away from the stop valve body (1) is fixedly connected to a flange plate (5), and a positioning ring (6) is fixedly connected to the outer wall of the flange plate (5).

2. A forged steel stop valve according to claim 1, characterized in that: The stop valve body (1) comprises a valve housing (7), the inner cavity of the valve housing (7) is provided with a valve flap (8), a valve stem (9) is installed at the center of the top surface of the valve flap (8), the top end of the valve stem (9) passes through the top surface of the valve housing (7) and is fixedly connected to a runner (10), a vertical pipe (11) is sleeved on the side wall of the valve stem (9), the vertical pipe (11) is fixedly connected to the outer wall of the valve housing (7), a mounting plate (12) is installed on the upper side of the vertical pipe (11), a top plate (13) is fixedly connected to the top surface of the mounting plate (12), and the top plate (13) is movably connected to the valve stem (9).

3. A forged steel stop valve according to claim 1, characterized in that: The connection mechanism comprises side plates (14), a plurality of side plates (14) are evenly distributed and fixedly connected to the outer side wall of the stop valve body (1) near both ends, a plurality of side plates (14) are evenly distributed and fixedly connected to the outer side wall of the movable tube (3) near the stop valve body (1), a same threaded rod (15) passes through two adjacent side plates (14), and nuts (16) are threadedly connected to the threaded rod (15) at both sides of the side plates (14).

4. A forged steel stop valve according to claim 1, characterized in that: The inner side wall of the positioning ring (6) is arranged in an arc shape on the side away from the stop valve body (1).

5. A forged steel stop valve according to claim 1, characterized in that: A first sealing ring (17) is fixedly connected to the inner side wall of the annular groove (4).

6. A forged steel stop valve according to claim 1, characterized in that: A second sealing ring (18) is fixedly connected to the side wall of the flange plate (5) away from the stop valve body (1).

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