Adjustable ball valve

Abstract

The utility model discloses an adjustable ball valve which comprises a ball valve body, a medium hole for a medium to pass through is formed in the ball valve body, middle valve bodies extending towards the corresponding sides are arranged at the two ends of the ball valve body respectively, and a movable valve body is arranged on the outer side of each middle valve body through a corresponding sliding structure. The movable valve body can slide along the axis relative to the corresponding middle valve body, and inner holes allowing media to pass through are formed in the middle valve body and the movable valve body along the axis. Through relative sliding of the movable valve body and the middle valve body, the length of the whole ball valve can be freely adjusted within the set range, and therefore when the installation sizes of different rigid pipelines are inconsistent, the valve can be suitable for all the rigid pipelines; after the ball valve is used for connection, types of valves are reduced, management is facilitated, and follow-up replacement and maintenance are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to an adjustable ball valve. Background Art

[0002] When the pipelines are installed and arranged, they have been installed according to the construction requirements. Among them, the installation dimensions of rigidly connected pipes and valves are fixed. When the valves need to be replaced in the later stage, the original size valves must be used. If valves of inconsistent lengths are used, the installation and use conditions will be harsh or even unusable. Utility Model Content

[0003] The utility model proposes an adjustable ball valve. In the installation of rigid pipelines, when the installation dimensions of the diameters of two pipelines are inconsistent, the installation can be achieved through the same valve, which not only reduces the types of valves and facilitates management, but also facilitates subsequent replacement and maintenance.

[0004] To this end, the technical solution adopted by the utility model is: an adjustable ball valve, including a ball valve body, a medium hole for medium to pass through is arranged in the ball valve body, both ends of the ball valve body are provided with intermediate valve bodies extending to corresponding sides, the outer side of each intermediate valve body is provided with a movable valve body through a corresponding sliding structure, the movable valve body can slide along the axis relative to the corresponding intermediate valve body, and the intermediate valve body and the movable valve body are both provided with inner holes for medium to pass through along the axis.

[0005] As a preferred embodiment of the above scheme, the sliding structure includes at least two sliding grooves that are circumferentially distributed on the inner hole of the middle valve body away from the ball valve body and arranged parallel to the axis, and a sliding rail that can move in the sliding groove is provided corresponding to each sliding groove on the outer circle of the movable valve body toward the ball valve body, and a sliding rail stopper is provided at the end of the sliding groove away from the ball valve body to prevent the sliding rail from detaching from the sliding groove.

[0006] Further preferably, an outer sleeve of one end of the movable valve body facing the ball valve body is provided with a first sealing structure which can move in the slide groove and is used to ensure the sealing of the ball valve.

[0007] Further preferably, the first sealing structure comprises a first sealing ring and a wear-resistant ring which are arranged at intervals, and the first sealing ring is closer to the ball valve body.

[0008] Further preferably, the intermediate valve body comprises a connecting valve body for connecting to the ball valve body and a sliding valve body for sliding, and the sliding valve body and the connecting valve body are welded to form the intermediate valve body.

[0009] Further preferably, the ball valve body includes a main valve body and a spherical valve core rotatably disposed in the main valve body, the medium hole is disposed on the valve core, the main valve body is provided with a rotating component for realizing the rotation of the valve core, and the valve core is provided with a second sealing component on both sides of the axis for ensuring sealing.

[0010] Further preferably, the second sealing assembly includes a guide ring arranged on the inner side of one end of the intermediate valve body close to the ball valve body, and both ends of the valve core are located on the inner side of the corresponding side guide ring, and a second sealing ring is arranged between the valve core and the main valve body.

[0011] Further preferably, the rotating assembly includes a rotating lever arranged with a vertical axis, the rotating lever is arranged on the main valve body through a hollow bolt, and the rotating lever can rotate relative to the hollow bolt, one end of the rotating lever passes through the main valve body and is inserted into a square hole arranged on the valve core, the other end of the rotating lever is sleeved with a rotating valve handle for driving the rotating lever to rotate, and the rotating lever is also provided with an anti-drop nut for preventing the rotating valve handle from falling off.

[0012] Further preferably, the connection between the intermediate valve body and the ball valve body is a threaded connection.

[0013] Further preferably, an inner hole of the movable valve body away from the main end of the ball valve is provided with an internal thread for connecting to other medium circulation pipelines.

[0014] The beneficial effects of the utility model are as follows: through the relative sliding of the moving valve body and the intermediate valve body, the length of the entire ball valve can be arbitrarily adjusted within the setting range. Therefore, when the installation dimensions between different rigid pipes are inconsistent, the valves of the present application can be applied; after the ball valve is used for connection, not only the types of valves are reduced and management is convenient, but also subsequent replacement and maintenance are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model.

[0016] Figure 2 This is a schematic diagram of the utility model when its length is the smallest.

[0017] Figure 3 It is a schematic diagram of the utility model when it is at its maximum length.

[0018] Figure markings: movable valve body -001, intermediate valve body -002, wear-resistant ring -003, first sealing ring -004, main valve body -005, second sealing ring -006, valve core -007, guide ring -008, rotating valve handle -009, first gasket -010, second gasket -011, rotating lever -012, anti-drop nut -013, hollow bolt -014. DETAILED DESCRIPTION

[0019] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0020] like Figure 1-3 As shown, an adjustable ball valve is mainly composed of a movable valve body 001, an intermediate valve body 002 and a ball valve body. The intermediate valve bodies 002 extending to the corresponding sides are arranged at both ends of the ball valve body, and the outer side of each intermediate valve body 002 is provided with a movable valve body 001 through a corresponding sliding structure, and the movable valve body 001 can slide along the axis relative to the corresponding intermediate valve body 002. In order to ensure the circulation of the medium, a medium hole for the medium to pass through is arranged in the ball valve body, and an inner hole for the medium to pass through is arranged along the axis in the intermediate valve body 002 and the movable valve body 001. Preferably, the diameter of the inner hole is not less than the diameter of the medium hole, and the inner hole diameter of the movable valve body is not less than the inner hole diameter of the intermediate valve body, so as to prevent the force on the movable valve body and the intermediate valve body from increasing when the medium flows.

[0021] The sliding structure includes at least two slide grooves which are circumferentially distributed on the inner hole of the middle valve body 002 at one end away from the ball valve body and are arranged parallel to the axis. Meanwhile, a slide rail which can move in the slide groove is arranged on the outer circle of the movable valve body 001 at one end facing the ball valve body, corresponding to each slide groove, and a slide rail stopper for preventing the slide rail from leaving the slide groove is arranged at one end of the slide groove away from the ball valve body. Preferably, four slide grooves are arranged.

[0022] In order to ensure the sealing of the entire valve body, a first sealing structure that can move in the slide groove and is used to ensure sealing before and after sliding is provided on the outer sleeve of the end of the movable valve body facing the ball valve body. The first sealing structure includes a first sealing ring 004 and a wear-resistant ring 003 that are arranged at intervals, and the first sealing ring 004 is closer to the ball valve body, wherein the wear-resistant ring is used to reduce the metal friction between the movable valve body and the intermediate valve body.

[0023] To facilitate the coordinated installation between the slide rail and the slide groove, the intermediate valve body includes a connecting valve body for connecting to the ball valve body and a sliding valve body for sliding, that is, the sliding valve body and the connecting valve body are welded to form an intermediate valve body 002, wherein one end of the connecting valve body away from the ball valve body serves as a limit for the other end of the slide groove.

[0024] The ball valve body includes a main valve body 005 and a spherical valve core 007 rotatably arranged in the main valve body 005, wherein the medium hole is arranged on the valve core 007, a rotating component for realizing the rotation of the valve core is arranged on the main valve body 005, and a second sealing component for ensuring sealing is arranged on both sides of the valve core 007 on the axis.

[0025] The second sealing assembly includes a guide ring 008 arranged on the inner side of one end of the intermediate valve body 002 close to the ball valve body, and both ends of the valve core 007 are located on the inner side of the corresponding side guide ring 008. A second sealing ring 006 is arranged between the valve core 007 and the main valve body 005. The guide ring is used to ensure that the valve core is evenly stressed.

[0026] The rotating assembly includes a rotating lever 012 arranged vertically along the axis, the rotating lever 012 being arranged on the main valve body 005 through a hollow bolt 014, and the rotating lever 012 being able to rotate relative to the hollow bolt 014. In order to realize that the valve core is driven to rotate when the rotating lever rotates, one end of the rotating lever 012 passes through the main valve body 005 and is inserted into a square hole arranged on the valve core 007, and the other end of the rotating lever 012 is sleeved with a rotating valve handle 009 that drives the rotating lever 012 to rotate, and an anti-drop nut 013 for preventing the rotating valve handle 009 from falling is also arranged on the rotating lever 012.

[0027] Preferably, a first gasket is provided between the hollow bolt and the main valve body, and a second gasket is provided between the anti-drop nut and the rotating valve handle. When in use, rotating the rotating valve handle can drive the rotating lever to rotate, so that the valve core rotates around the axis of the rotating lever, and the medium hole is changed, thereby achieving the function of switching the medium on and off.

[0028] Preferably, the connection between the intermediate valve body and the ball valve body is a threaded connection, specifically, an external thread is provided at one end of the intermediate valve body, and an internal thread is provided at one end of the main valve body. When the intermediate valve body is screwed into the main valve body, the second sealing ring and the guide ring can be tightly pressed against the curved surface of the valve core, thereby ensuring uniform force on the valve core and sealing when the valve core rotates.

[0029] Preferably, an internal thread for connecting to other medium circulation pipelines is provided on the inner hole of the movable valve body 001 away from the main end of the ball valve, so that when the entire ball valve is installed, the length of the ball valve is first reduced, and when it is connected through the thread, the ball valve is automatically lengthened. When plugging and unplugging, when the ball valve is screwed, the entire ball valve can be contracted. When the threaded connection is completed, the disassembly can be completed, and the entire installation and disassembly are very convenient and quick.

Claims

1. An adjustable ball valve, comprising a ball valve body, wherein a medium hole for medium to pass through is arranged in the ball valve body, characterized in that: Both ends of the ball valve body are provided with intermediate valve bodies (002) extending toward corresponding sides, and the outer side of each intermediate valve body (002) is provided with a movable valve body (001) through a corresponding sliding structure. The movable valve body (001) can slide along the axis relative to the corresponding intermediate valve body (002), and the intermediate valve body (002) and the movable valve body (001) are both provided with inner holes along the axis for medium to pass through.

2. The adjustable ball valve according to claim 1, characterized in that: The sliding structure comprises at least two sliding grooves which are circumferentially distributed on the inner hole of the middle valve body (002) away from the ball valve body and arranged parallel to the axis; a sliding rail which can move in the sliding groove is arranged on the outer circle of the movable valve body (001) facing the ball valve body corresponding to each sliding groove; a sliding rail stopper is arranged at the end of the sliding groove away from the ball valve body to prevent the sliding rail from leaving the sliding groove.

3. The adjustable ball valve according to claim 2, characterized in that: The outer sleeve of one end of the movable valve body facing the ball valve body is provided with a first sealing structure which can move in the slide groove and is used to ensure the sealing of the ball valve.

4. The adjustable ball valve according to claim 3, characterized in that: The first sealing structure comprises a first sealing ring (004) and a wear-resistant ring (003) which are arranged at intervals, and the first sealing ring (004) is closer to the ball valve body.

5. The adjustable ball valve according to claim 2, characterized in that: The intermediate valve body comprises a connecting valve body for connecting with the ball valve body and a sliding valve body for sliding, and the sliding valve body and the connecting valve body are welded to form the intermediate valve body (002).

6. The adjustable ball valve according to claim 1, characterized in that: The ball valve body comprises a main valve body (005) and a spherical valve core (007) rotatably arranged in the main valve body (005); the medium hole is arranged on the valve core (007); a rotating component for realizing the rotation of the valve core is arranged on the main valve body (005); and a second sealing component for ensuring sealing is arranged on both sides of the axis of the valve core (007).

7. The adjustable ball valve according to claim 6, characterized in that: The second sealing assembly includes a guide ring (008) arranged on the inner side of one end of the intermediate valve body (002) close to the ball valve body, and both ends of the valve core (007) are located on the inner side of the corresponding side guide ring (008), and a second sealing ring (006) is arranged between the valve core (007) and the main valve body (005).

8. The adjustable ball valve according to claim 6, characterized in that: The rotating assembly comprises a rotating lever (012) arranged on a vertical axis, the rotating lever (012) being arranged on the main valve body (005) via a hollow bolt (014), and the rotating lever (012) being rotatable relative to the hollow bolt (014), one end of the rotating lever (012) passing through the main valve body (005) and then inserted into a square hole arranged on the valve core (007), the other end of the rotating lever (012) being sleeved with a rotating valve handle (009) for driving the rotating lever (012) to rotate, and the rotating lever (012) being further provided with an anti-drop nut (013) for preventing the rotating valve handle (009) from falling off.

9. The adjustable ball valve according to claim 1, characterized in that: The connection between the intermediate valve body and the ball valve body is threaded connection.

10. The adjustable ball valve according to claim 1, characterized in that: An inner hole of the movable valve body (001) away from the main end of the ball valve is provided with an inner thread for connecting to other medium flow pipelines.

Images