Dual-purpose ball valve for adjustment and full-bore shutoff

Abstract

A dual-purpose ball valve for adjustment and full-bore turn-off comprises a valve body, an outer ball body is arranged in the valve body, an upper valve rod is connected to the outer ball body, an upper driving device is connected to the upper valve rod, and the upper driving device drives the outer ball body to rotate in the valve body to achieve turn-on and turn-off of the valve. An inner ball body is further arranged in the outer ball body, a lower valve rod is connected to the inner ball body, a lower driving device is connected to the lower valve rod, the lower driving device drives the inner ball body to rotate in the outer ball body, an overflowing medium is adjusted through the opening and closing angle of the valve, and an upper operation driving device and a lower operation driving device are adopted. The upper driving device drives the outer ball body to rotate, connection and disconnection of a conventional valve can be achieved, the lower driving device drives the inner ball body to rotate, an overflowing medium can be adjusted through the opening and closing angle of the valve, the large-range flow adjusting function and disconnection can be achieved in an internal combination mode, and the two function requirements can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a kind of regulating and full bore shut-off dual-purpose ball valve. BACKGROUND

[0002] The existing conventional ball valve generally has the functions of switching on and shutting off, but in the case of needing to regulate the flow medium, the conventional ball valve cannot realize the function of regulating the flow medium, and the existing ball valve with the function of regulating the flow medium has a small regulating range and often cannot meet the full bore flow function requirement. Therefore, a ball valve is needed to realize the two function requirements and reduce the pipeline layout. SUMMARY

[0003] In order to solve the technical defects existing in the prior art, the utility model provides a kind of regulating and full bore shut-off dual-purpose ball valve.

[0004] The technical solution adopted by the utility model is: a regulating and full bore shut-off dual-purpose ball valve, comprising a valve body, an outer sphere is arranged in the valve body, an upper valve rod is connected to the outer sphere, an upper driving device is connected to the upper valve rod, the upper driving device drives the outer sphere to rotate in the valve body to realize the switching on and shutting off of the valve, an inner sphere is further arranged in the outer sphere, a lower valve rod is connected to the inner sphere, a lower driving device is connected to the lower valve rod, and the lower driving device drives the inner sphere to rotate in the outer sphere to regulate the flow medium by the angle of the valve switch.

[0005] The outer sphere is of a split structure, and the outer sphere is combined into a complete sphere by bolts along the flow channel of the split structure.

[0006] The inner part of the outer sphere is machined by two support shafts, and the support shafts support the inner sphere.

[0007] The inner sphere is an inner V-shaped sphere, and the inner V-shaped sphere is rotationally connected with the outer sphere to regulate the flow medium by the angle of the inner V-shaped sphere.

[0008] The lower valve rod penetrates the outer sphere and is connected with the inner sphere in the outer sphere and is driven by the lower driving device.

[0009] The valve body is further provided with an upper valve cover and a lower valve cover, and the upper valve cover and the lower valve cover are both provided with packing glands between the upper valve rod and the lower valve rod.

[0010] The valve body is further provided with a valve seat, and the valve seat is sealingly connected with the outer sphere.

[0011] The inner V-shaped sphere is provided with a V-shaped notch.

[0012] The utility model discloses an advantageous effect is: the utility model provides a kind of adjustment and full through diameter off dual-purpose ball valve, including valve body, the valve body is equipped with outer sphere, the outer sphere is connected with upper valve stem, the upper valve stem is connected with upper driving device, the upper driving device drives outer sphere to rotate in valve body and realizes the connection and shutdown of valve, the outer sphere is also equipped with inner sphere, the inner sphere is connected with lower valve stem, the lower valve stem is connected with lower driving device, the lower driving device drives inner sphere to rotate in outer sphere and is adjusted to overflow medium by the angle of valve switch, using two operations driving devices, upper driving device drives outer sphere to rotate, can realize the connection and shutdown of conventional valve, lower driving device drives inner sphere to rotate, can be adjusted to overflow medium by the angle of valve switch, by the way of internal combination, wide-range flow regulation function and truncation can be realized, two kinds of functional requirements can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the utility model structural schematic diagram.

[0014] Figure 2 It is the utility model inner and outer sphere combination structure schematic diagram.

[0015] Figure 3 It is the utility model outer sphere structure schematic diagram.

[0016] Figure 4 It is the utility model inner sphere structure schematic diagram.

[0017] Wherein 1-valve body, 2-outer sphere, 3-upper valve stem, 4-upper driving device, 5-inner sphere, 6-lower valve stem, 7-lower driving device, 8-stuffing box, 9-valve seat, 11-upper valve cover, 12-lower valve cover, 21-bolt, 22-supporting shaft. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0019] The utility model discloses a regulating and full passageway on-off dual-purpose ball valve, including the valve body 1, its characterized in that, the valve body 1 is equipped with the outer sphere 2, the outer sphere 2 is connected with the upper valve rod 3, the upper valve rod 3 is connected with the upper drive device 4, the outer sphere 2 is rotated in the valve body 1 and is driven the upper drive device 4 realizes the switch of valve, the inner sphere 5 is also equipped in the outer sphere 2, the inner sphere 5 is connected with the lower valve rod 6, the lower valve rod 6 is connected with the lower drive device 7, the inner sphere 5 is rotated in the outer sphere 2 and is driven the lower drive device 7, and the angle of valve switch is adjusted to the overcurrent medium, the outer sphere 2 is split -open type structure, and the outer sphere 2 is combined to become a complete sphere by bolt 21 and is split -open type structure along the flow channel, the inside processing of the outer sphere 2 is supported by two support shafts 22, and the support shaft 22 supports the inner sphere 5, the inner sphere 5 is inner V type sphere, and the inner V type sphere is equipped with V type gap, the inner V type sphere and the outer sphere 2 are rotationally fitted, and the angle of inner V type sphere switch is adjusted to the overcurrent medium, the lower valve rod 6 passes through the outer sphere 2 and is connected with the inner sphere 5 in the inside and is driven by the lower drive device 7, the utility model discloses two operating drive devices, and the upper drive device drives the outer sphere to rotate, can realize the switch of conventional valve, and the lower drive device drives the inner sphere to rotate, can adjust the overcurrent medium through the angle of valve switch, and the inside combination can realize the flow regulation function and the cut-off of wide range, can realize two function demands.

[0020] The valve body 1 is also provided with an upper valve cover 11 and a lower valve cover 12, and the upper valve cover 11 and the lower valve cover 12 are provided with packing glands 8 between the upper valve rod 3 and the lower valve rod 6. The packing glands serve to fix the outer sphere and limit the valve rod.

[0021] The valve body 1 is also provided with a valve seat 9, and the valve seat 9 is in sealing engagement with the outer sphere 2.

[0022] It should be noted that, although the utility model has been described in the above specific embodiments, the utility model idea of the utility model is not limited to this utility model, and any modification using the utility model idea will be included in the protection scope of the patent.

[0023] The above description is only the preferred embodiments of the utility model, and the protection scope of the utility model is not limited to the above embodiments. Any improvement and decoration without departing from the principle of the utility model should be considered as the protection scope of the utility model.

Claims

1. A ball valve for regulating and full-path shut-off, comprising a valve body (1), characterized in that, The valve body (1) is internally provided with an outer sphere (2), the outer sphere (2) is connected with an upper valve rod (3), the upper valve rod (3) is connected with an upper driving device (4), the upper driving device (4) drives the outer sphere (2) to rotate in the valve body (1) to realize the opening and closing of the valve, the outer sphere (2) is further internally provided with an inner sphere (5), the inner sphere (5) is connected with a lower valve rod (6), the lower valve rod (6) is connected with a lower driving device (7), the lower driving device (7) drives the inner sphere (5) to rotate in the outer sphere (2) to adjust the flow medium by the opening and closing angle of the valve.

2. The regulating and full-gauge shut-off dual ball valve according to claim 1, characterized in that, The outer sphere (2) is a split structure, the outer sphere (2) is combined into a complete sphere by bolts (21) to split the sphere along the flow channel.

3. The regulating and full-gauge shut-off dual ball valve according to claim 2, characterized in that, The outer sphere (2) is internally provided with two support shafts (22), the support shafts (22) support the inner sphere (5).

4. The regulator and full-port shut-off dual ball valve of claim 1, wherein, The inner sphere (5) is an inner V-shaped sphere, the inner V-shaped sphere is rotationally matched with the outer sphere (2) to adjust the flow medium by the opening and closing angle of the inner V-shaped sphere.

5. The regulator and full-port shut-off dual ball valve of claim 1, wherein, The lower valve rod (6) penetrates the outer sphere (2) and is connected with the inner sphere (5) and is driven by the lower driving device (7).

6. The regulator and full-port shut-off dual ball valve of claim 1, wherein, The valve body (1) is further provided with an upper valve cover (11) and a lower valve cover (12), the upper valve cover (11) and the lower valve cover (12) are both provided with packing glands (8) between the upper valve rod (3) and the lower valve rod (6).

7. The regulator and full-port shut-off dual ball valve of claim 1, wherein, The valve body (1) is further provided with a valve seat (9), the valve seat (9) is sealingly matched with the outer sphere (2).

8. The regulator and full-port shut-off dual ball valve of claim 4, wherein, The inner V-shaped sphere is provided with a V-shaped notch.

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