Ball valve with easy replacement of sealing ring

Abstract

The utility model relates to the field of valve technology, specifically to a ball valve that is easy to replace a sealing ring, including a valve housing, a first valve seat and a second valve seat are symmetrically provided at both ends of the valve housing, the second valve seat is welded and fixed to the outer wall of the valve housing, the first valve seat is fixedly connected to the valve housing by fixing bolts, and a sealing gasket is provided between the first valve seat and the valve housing. The utility model provides a first valve seat and a valve housing that are connected by fixing bolts, and installs a sealing gasket between the first valve seat and the valve housing. When in use, the sealing gasket can be easily replaced and used in a ball valve. The sealing gasket includes a first sealing ring and a second sealing ring. The integrally formed structure can ensure the sealing between the first valve seat and the valve housing, and can also increase the structural strength of the entire sealing gasket, so that it can be used for a longer time, thereby reducing the frequency of replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a ball valve with a sealing ring that is convenient for replacing. Background Art

[0002] In the field of valve technology, ball valves are a common control element widely used in various fluid pipeline systems. However, the traditional ball valve design has certain limitations in sealing performance, especially in the replacement of sealing rings, which often requires cumbersome disassembly and installation steps, bringing inconvenience to maintenance and replacement work.

[0003] In the traditional ball valve design, the sealing ring is usually fixed inside the valve body and in close contact with the valve ball to achieve a sealing effect. However, this design makes it difficult to replace the sealing ring because the entire valve body needs to be disassembled to access the sealing ring, which not only increases the difficulty and time cost of maintenance, but may also affect the normal operation of the valve. In view of this, we propose a ball valve that is easy to replace the sealing ring. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a ball valve with a sealing ring that is easy to replace.

[0005] The technical solution of the utility model is:

[0006] A ball valve that is easy to replace a sealing ring comprises a valve housing, wherein a first valve seat and a second valve seat are symmetrically provided at both ends of the valve housing, the second valve seat is welded and fixed to the outer wall of the valve housing, the first valve seat and the valve housing are fixedly connected by fixing bolts, a sealing gasket is provided between the first valve seat and the valve housing, a rotatable valve core is provided in the valve housing, the valve core is in close contact with a first sealing ring of the sealing gasket, and the second sealing ring of the sealing gasket is located between the first valve seat and the outer wall of the valve housing.

[0007] As a preferred technical solution, a driving shaft extending from the top of the valve housing is coaxially fixed at the center of the top circle of the valve core.

[0008] As a preferred technical solution, the valve core is perpendicular to a connecting line between two channel openings in the valve housing.

[0009] As a preferred technical solution, a base for increasing stability during use is welded and fixed to the bottom of the valve housing, and a mounting notch for installing the fixing bolt is provided on the base.

[0010] As a preferred technical solution, a driving rod is fixedly connected to the top of the driving shaft and is perpendicular to the driving shaft and is used to drive the driving shaft to rotate.

[0011] As a preferred technical solution, a channel for connecting the two channel openings is opened on the valve core.

[0012] As a preferred technical solution, a convex shaft rotatably connected to the valve core is integrally formed at the center of the inner wall at the bottom of the valve housing.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a first valve seat and a valve shell connected by fixing bolts, and installs a sealing gasket between the first valve seat and the valve shell. When in use, the sealing gasket can be easily replaced, which is convenient for use in a ball valve. The sealing gasket includes a first sealing ring and a second sealing ring. The one-piece molded structure can ensure the sealing between the first valve seat and the valve shell, and can also increase the structural strength of the entire sealing gasket, so that it can be used for a longer time, thereby reducing the frequency of replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 Schematic diagram of the internal structure;

[0017] Figure 3 It is a structural schematic diagram of the sealing gasket in the utility model;

[0018] Figure 4 For the utility model Figure 2 Enlarged view of point A in the middle.

[0019] The meaning of each number in the figure is:

[0020] 1. Valve housing; 10. Drive shaft; 11. Drive rod; 12. Valve core; 13. Protruding shaft; 14. Channel opening; 2. First valve seat; 20. Installation notch; 21. Fixing bolt; 3. Second valve seat; 4. Base; 5. Sealing gasket; 50. First sealing ring; 51. Second sealing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A ball valve with a sealing ring that is easy to replace includes a valve housing 1, wherein a first valve seat 2 and a second valve seat 3 are symmetrically arranged at both ends of the valve housing 1, the second valve seat 3 is welded and fixed to the outer wall of the valve housing 1, the first valve seat 2 is fixedly connected to the valve housing 1 by a fixing bolt 21, a sealing gasket 5 is arranged between the first valve seat 2 and the valve housing 1, a rotatable valve core 12 is arranged in the valve housing 1, the valve core 12 is in close contact with a first sealing ring 50 of the sealing gasket 5, and a second sealing ring 51 of the sealing gasket 5 is located between the first valve seat 2 and the outer wall of the valve housing 1. By providing the first valve seat 2 and the valve housing 1 connected by the fixing bolt 21, and installing the sealing gasket 5 between the first valve seat 2 and the valve housing 1, the sealing gasket 5 can be easily replaced during use, and is easy to use in the ball valve, the sealing gasket 5 includes a first sealing ring 50 and a second sealing ring 51, and the integrally formed structure can ensure the sealing between the first valve seat 2 and the valve housing 1, and can also increase the structural strength of the entire sealing gasket 5, so that it can be used for a longer time, thereby reducing the replacement frequency.

[0024] As a preferred embodiment of the present invention, a driving shaft 10 extending from the top of the valve housing 1 is coaxially fixed at the center of the top of the valve core 12. When in use, the driving shaft 10 drives the valve core 12 to rotate, so that the opening and closing of the ball valve can be controlled.

[0025] As a preferred embodiment of the present invention, the valve core 12 is perpendicular to the connecting line of the two channel openings 14 in the valve housing 1. It is ensured that the rotation of the valve core 12 can seal the two connected channel openings 14 to close the ball valve.

[0026] As a preferred embodiment of the present invention, a base 4 for increasing stability during use is welded and fixed to the bottom of the valve housing 1. The provided base 4 is used to increase the stability and safety of the ball valve during use.

[0027] As a preferred embodiment of the present invention, a mounting notch 20 for mounting a fixing bolt 21 is provided on the first valve seat 2. The mounting notch 20 is provided to facilitate operation of the fixing bolt 21, that is, to facilitate loosening or tightening the fixing bolt 21.

[0028] As a preferred embodiment of the present invention, a driving rod 11 which is perpendicular to the driving shaft 10 and is used to drive the driving shaft 10 to rotate is fixedly connected to the top of the driving shaft 10. The driving rod 11 is arranged to facilitate driving the driving shaft 10 to rotate, thereby facilitating the opening and closing of the ball valve.

[0029] As a preferred embodiment of the present invention, a channel for connecting the two channel openings 14 is provided on the valve core 12, that is, it is ensured that the control valve core 12 can open the ball valve.

[0030] As a preferred embodiment of the present invention, a convex shaft 13 is integrally formed at the center of the inner wall at the bottom of the valve housing 1 and is rotatably connected to the valve core 12. The convex shaft 13 is provided to increase the stability of the valve core 12 during rotation.

[0031] When the ball valve of the utility model is used, when the valve is in a closed state, the valve core 12 is in close contact with the first valve seat 2 through the rotation of the drive shaft 10 and the drive rod 11. At this time, the sealing ring on the valve core 12 is closely fitted with the first sealing ring 50 of the sealing gasket 5 to form an effective sealing surface to prevent the medium from leaking from the valve. When it is necessary to open or close the valve, the operator drives the rotation of the drive shaft 10 and the valve core 12 by rotating the drive rod 11, and the valve core 12 rotates stably in the valve housing 1 under the support of the convex shaft 13. When the channel on the valve core 12 rotates to be perpendicular to the connecting line of the two channel ports 14, the two channel ports 14 are cut off, and the valve is in a closed state; when the channel on the valve core 12 rotates to be parallel to the connecting line of the two channel ports 14, the two channel ports 14 are connected, and the valve is in an open state; the sealing gasket 5 is located between the first valve seat 2 and the valve housing 1, and its first sealing ring 50 is in close contact with the valve core 12 to ensure the sealing performance of the valve in a closed state. At the same time, the second sealing ring 51 is located between the first valve seat 2 and the outer wall of the valve housing 1, further enhancing the sealing effect of the first valve seat 2 to prevent medium leakage;

[0032] When the sealing gasket 5 needs to be replaced, the fixing bolts 21 are removed and the first valve seat 2 is removed, and the sealing gasket 5 can be removed and replaced, which is convenient and quick in operation.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A ball valve with a sealing ring that is easy to replace, comprising a valve housing (1), characterized in that: A first valve seat (2) and a second valve seat (3) are symmetrically provided at both ends of the valve housing (1); the second valve seat (3) is welded and fixed to the outer wall of the valve housing (1); the first valve seat (2) and the valve housing (1) are fixedly connected by fixing bolts (21); a sealing gasket (5) is provided between the first valve seat (2) and the valve housing (1); a rotatable valve core (12) is provided in the valve housing (1); the valve core (12) is in close contact with a first sealing ring (50) of the sealing gasket (5); and the second sealing ring (51) of the sealing gasket (5) is located between the first valve seat (2) and the outer wall of the valve housing (1).

2. The ball valve with easy replacement of sealing ring as claimed in claim 1, characterized in that: A driving shaft (10) extending from the top of the valve housing (1) is coaxially fixed at the center of the top of the valve core (12).

3. The ball valve with easy replacement of sealing ring as claimed in claim 2, characterized in that: The valve core (12) is perpendicular to a connecting line between two channel openings (14) in the valve housing (1).

4. The ball valve with easy replacement of sealing ring as claimed in claim 3, characterized in that: A base (4) is welded and fixed to the bottom of the valve housing (1) to increase stability during use.

5. The ball valve with easy replacement of sealing ring as claimed in claim 4, characterized in that: The first valve seat (2) is provided with a mounting notch (20) for mounting the fixing bolt (21).

6. The ball valve with easy replacement of sealing ring as claimed in claim 5, characterized in that: The top of the driving shaft (10) is fixedly connected to a driving rod (11) which is perpendicular to the driving shaft and is used to drive the driving shaft to rotate.

7. The ball valve with easy replacement of sealing ring as claimed in claim 6, characterized in that: The valve core (12) is provided with a channel for connecting the two channel openings (14).

8. The ball valve with easy replacement of sealing ring as claimed in claim 7, characterized in that: A convex shaft (13) rotatably connected to the valve core (12) is integrally formed at the center of the inner wall at the bottom of the valve housing (1).

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