Novel flange ball valve

Abstract

The utility model discloses a novel flange ball valve, and relates to the field of ball valves. The novel flange ball valve comprises a ball valve unit, an anti-seepage unit is arranged in the ball valve unit, the ball valve unit comprises a valve body, valve seats and a control switch, a ball core is arranged in the valve body, the valve seats are fixedly connected to the two sides of the valve body, and the control switch is arranged at the top of the valve body. The anti-seepage unit comprises a mounting disc, a pre-tightening spring, a connecting assembly and a sealing gasket, the mounting disc is movably connected to the valve seat, the two ends of the pre-tightening spring are connected with the mounting disc and the connecting assembly respectively, the connecting assembly is connected with the sealing gasket, and the sealing gasket abuts against the ball core. According to the novel flange ball valve, by arranging the anti-seepage unit capable of being mounted and dismounted, after the sealing gasket is damaged, the screw is unscrewed, the mounting disc is dismounted, and then the sealing gasket inside can be replaced, so that the sealing gasket is convenient to replace, and the service life of the ball valve is prolonged.

Description

Technical Field

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

[0002] A flanged ball valve is a type of gate valve. Its closing element is a sphere that rotates around the centerline of the valve body to open and close. When the valve is opened, the sphere rotates 90°, allowing the medium to flow smoothly. When closed, the sphere rotates another 90°, shutting off the medium. Flanged ball valves are widely used in various industrial fields.

[0003] The sealing structure of some existing flanged ball valves is fixed and cannot be replaced. When the sealing gasket is damaged, the ball valve needs to be replaced, which is easy to cause waste. In addition, the internal sealing gasket of some flanged ball valves is prone to wear and thinning during the long-term rotation and friction with the ball core, which makes the sealing gasket and the ball core not tightly pressed, which is easy to cause leakage. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a new flange ball valve, which solves the problem that the sealing structure of some flange ball valves is fixed and cannot be replaced. When the sealing gasket is damaged, the ball valve needs to be replaced, which easily causes waste; and the internal sealing gaskets of some flange ball valves are easily worn and thinned during the long-term rotation and friction with the ball core, so that the sealing gasket and the ball core are not tightly pressed, which easily causes leakage.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: the new flange ball valve includes a ball valve unit, wherein an anti-seepage unit is provided in the ball valve unit;

[0006] The ball valve unit includes a valve body, a valve seat and a control switch. The valve body is provided with a ball core. The valve seat is fixedly connected to both sides of the valve body. The control switch is provided on the top of the valve body.

[0007] The anti-seepage unit includes a mounting disk, a preload spring, a connecting assembly and a sealing gasket. The mounting disk is movably connected to the valve seat. The two ends of the preload spring are respectively connected to the mounting disk and the connecting assembly. The connecting assembly is connected to the sealing gasket, and the sealing gasket abuts against the ball core.

[0008] Preferably, a mounting groove is provided on the valve seat, and the mounting plate is installed in the mounting groove.

[0009] Preferably, the anti-seepage unit further includes a fixing ring, which is fixedly connected to the inner side of the mounting plate.

[0010] Preferably, the preload spring is arranged in the fixed ring, and one end of the preload spring is fixedly connected to the mounting plate.

[0011] Preferably, the connecting assembly includes a first connecting ring, a second connecting ring, a third connecting ring and a rubber ring. The first connecting ring, the second connecting ring and the third connecting ring are all fixedly connected, and the rubber ring is embedded in the first connecting ring.

[0012] Preferably, one end of the first connecting collar is fixedly connected to the preload spring, and the other end is connected to the sealing gasket.

[0013] Preferably, the second connecting collar is inserted into the fixed ring, and the preload spring is sleeved on the second connecting collar.

[0014] Preferably, the third connecting ring is inserted into the mounting plate.

[0015] The utility model discloses a novel flange ball valve, which has the following beneficial effects:

[0016] The new flange ball valve is provided with a detachable anti-seepage unit, so that when the sealing gasket is damaged, the internal sealing gasket can be replaced by loosening the screws and removing the mounting plate. This not only makes the sealing gasket replacement convenient, but also extends the service life of the ball valve.

[0017] The new flange ball valve is connected to the first connecting ring through a sealing gasket, and the first connecting ring is connected to the preload spring, so that there is always a counter-pressure force between the sealing gasket and the ball core, avoiding the problem of leakage caused by wear and thinning of the sealing gasket during long-term mechanical rotation with the ball core, making the sealing performance of the ball valve better and increasing the service life of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the ball valve unit of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the anti-seepage unit of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the connection component of the utility model.

[0023] In the figure: 1. Ball valve unit; 11. Valve body; 12. Valve seat; 121. Mounting groove; 13. Control switch; 2. Anti-seepage unit; 21. Mounting plate; 22. Fixed ring; 23. Preload spring; 24. Connecting assembly; 241. First connecting ring; 242. Second connecting ring; 243. Third connecting ring; 244. Rubber ring; 25. Sealing gasket. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] The embodiment of the utility model discloses a novel flange ball valve.

[0026] According to the attached Figure 1-4 As shown, it includes a ball valve unit 1, an anti-seepage unit 2 is arranged in the ball valve unit 1, the ball valve unit 1 includes a valve body 11, a valve seat 12 and a control switch 13, a ball core is arranged in the valve body 11, the valve seat 12 is fixedly connected to both sides of the valve body 11, and the control switch 13 is arranged on the top of the valve body 11.

[0027] It is particularly disclosed that the anti-seepage unit 2 includes a mounting disk 21, a preload spring 23, a connecting assembly 24 and a sealing gasket 25. The mounting disk 21 is movably connected to the valve seat 12. The two ends of the preload spring 23 are respectively connected to the mounting disk 21 and the connecting assembly 24. The connecting assembly 24 is connected to the sealing gasket 25. The sealing gasket 25 abuts against the ball core. By providing an anti-seepage unit 2 that can be installed and removed, the sealing gasket 25 can be replaced by loosening the screws and removing the mounting disk 21 after being damaged. This not only makes the replacement of the sealing gasket 25 convenient, but also extends the service life of the ball valve.

[0028] Furthermore, a mounting groove 121 is provided on the valve seat 12 , and the mounting plate 21 is mounted in the mounting groove 121 . The mounting plate 21 is mounted on the valve seat 12 by a plurality of screws, making the installation and removal of the mounting plate 21 more convenient.

[0029] Furthermore, the anti-seepage unit 2 further includes a fixing ring 22 , which is fixedly connected to the inner side of the mounting plate 21 .

[0030] Furthermore, the preload spring 23 is disposed in the fixed ring 22 , and one end of the preload spring 23 is fixedly connected to the mounting plate 21 .

[0031] Specifically disclosed, the connecting assembly 24 includes a first connecting ring 241 , a second connecting ring 242 , a third connecting ring 243 and a rubber ring 244 . The first connecting ring 241 , the second connecting ring 242 and the third connecting ring 243 are all fixedly connected, and the rubber ring 244 is embedded in the first connecting ring 241 .

[0032] Furthermore, one end of the first connecting ring 241 is fixedly connected to the preload spring 23, and the other end is connected to the sealing gasket 25. The sealing gasket 25 is connected to the first connecting ring 241, and the first connecting ring 241 is connected to the preload spring 23, so that there is always a counter-pressure force between the sealing gasket 25 and the ball core, avoiding the problem of leakage caused by wear and thinning of the sealing gasket 25 during long-term mechanical rotation with the ball core, thereby improving the sealing performance of the ball valve and increasing the service life of the ball valve.

[0033] Furthermore, the second connecting ring 242 is inserted into the fixing ring 22 , and the preload spring 23 is sleeved on the second connecting ring 242 .

[0034] Furthermore, the third connecting ring 243 is inserted into the mounting plate 21 . By providing the third connecting ring 243 , the preload spring 23 drives the sealing gasket 25 to move forward, thereby preventing leakage from occurring due to the generated local displacement.

[0035] Working principle: When the sealing gasket 25 inside the valve body 11 is damaged and needs to be replaced, first loosen the screws on the mounting plate 21 so that the mounting plate 21 can be removed from the valve seat 12. The mounting plate 21 drives the preload spring 23, the connecting assembly 24 and the sealing gasket 25 to be removed from the ball valve, remove the damaged sealing gasket 25, replace it with a new one, and then insert the preload spring 23, the connecting assembly 24 and the sealing gasket 25 into the ball valve. Finally, use screws to fix the mounting plate 21 on the valve seat 12 to complete the replacement of the sealing gasket 25.

[0036] When the sealing gasket 25 rubs against the ball core for a long time, the sealing gasket 25 becomes thinner. At this time, the preload spring 23 squeezes the first connecting ring 241 to move forward, thereby driving the sealing gasket 25 to move forward, so that the sealing gasket 25 is always pressed against the ball core.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A novel flange ball valve, comprising a ball valve unit (1), characterized in that: An anti-seepage unit (2) is provided in the ball valve unit (1); The ball valve unit (1) comprises a valve body (11), a valve seat (12) and a control switch (13); a ball core is provided in the valve body (11); the valve seat (12) is fixedly connected to both sides of the valve body (11); and the control switch (13) is provided on the top of the valve body (11); The anti-seepage unit (2) comprises a mounting plate (21), a preload spring (23), a connecting assembly (24) and a sealing gasket (25); the mounting plate (21) is movably connected to the valve seat (12); the two ends of the preload spring (23) are respectively connected to the mounting plate (21) and the connecting assembly (24); the connecting assembly (24) is connected to the sealing gasket (25); and the sealing gasket (25) abuts against the ball core.

2. The new flange ball valve according to claim 1 is characterized in that: The valve seat (12) is provided with a mounting groove (121), and the mounting plate (21) is mounted in the mounting groove (121).

3. The new flange ball valve according to claim 1 is characterized in that: The anti-seepage unit (2) further comprises a fixing ring (22), wherein the fixing ring (22) is fixedly connected to the inner side of the mounting plate (21).

4. The new flange ball valve according to claim 3 is characterized in that: The preload spring (23) is arranged in the fixed ring (22), and one end of the preload spring (23) is fixedly connected to the mounting plate (21).

5. The new flange ball valve according to claim 1 is characterized in that: The connecting assembly (24) comprises a first connecting ring (241), a second connecting ring (242), a third connecting ring (243) and a rubber ring (244); the first connecting ring (241), the second connecting ring (242) and the third connecting ring (243) are all fixedly connected, and the rubber ring (244) is embedded in the first connecting ring (241).

6. The novel flange ball valve according to claim 5 is characterized in that: One end of the first connecting collar (241) is fixedly connected to the preload spring (23), and the other end is connected to the sealing gasket (25).

7. The new flange ball valve according to claim 5 is characterized in that: The second connecting collar (242) is inserted into the fixed ring (22), and the preload spring (23) is sleeved on the second connecting collar (242).

8. The novel flange ball valve according to claim 5 is characterized in that: The third connecting collar (243) is inserted into the mounting plate (21).

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