Floating ball valve

Abstract

The utility model relates to ball valve technical field, and disclose a kind of floating ball valve, including valve body, the top of valve body is equipped with connecting piece, the inner wall of connecting piece is rotatably connected with rotating rod, the bottom of rotating rod is fixedly connected with valve ball, the side of valve ball is equipped with passageway, the top of connecting piece is fixedly connected with connecting box, the inner wall of connecting box is fixedly connected with volute spring, the outer wall of rotating rod is fixedly connected with buffer rod.The utility model is opened after rotating handle drives valve ball to rotate and start water flow, volute spring is tightened, and then after loosening rotating handle, the elastic force of volute spring will drive rotating rod to reset, and then rotating rod will automatically drive valve ball to reset, realize to water flow is automatically closed, the device can automatically close water flow, and then will not appear user forgets to close water valve and lead to water resource waste.

Description

Technical Field

[0001] This utility model relates to the field of ball valves, specifically a floating ball valve. Background Technology

[0002] A floating ball valve is a type of valve that achieves sealing by displacing a ball under the pressure of the medium. The ball, under the action of the fluid, presses tightly against the downstream valve seat to form a metal-non-metal composite seal. Opening and closing requires only a 90° rotation. It features low flow resistance, rapid shut-off, and a compact structure. This valve adopts a bottom-mounted stem anti-flyaway design and is compatible with sealing rings made of various materials such as PTFE and elastomers. The nominal diameter range is DN15-250, the applicable temperature is -196℃ to 350℃, and the pressure rating reaches up to PN100. It supports manual, pneumatic, electric, and hydraulic actuation methods and is suitable for water, gas, oil, natural gas, and acid / alkali corrosive media. It is widely used in petrochemical, natural gas, and water treatment fields. Traditional floating ball valves primarily use sealing packing connected to the valve body by tightening nuts. This structure has a defect: if the nut loosens, the sealing effect will decrease, causing the sealing packing to fail to perform its sealing function. Furthermore, the shut-off ball valve requires the handle and valve stem to be rotated 90° during operation. The existing indicator marks are not obvious, and operators can only rely on experience to rotate the handle 90°, which is inconvenient.

[0003] To address the aforementioned issues, the floating ball valve with Chinese patent publication number CN204477477U employs a gland and butterfly spring structure. The gland is fixed to the valve body with fasteners, generating a downward clamping force that acts on the butterfly spring, which in turn acts on the packing ring, pressing down on the sealing packing and deforming it. This improves the sealing effect of the packing, and even after prolonged use, the packing will not loosen. Furthermore, the indicator block is fixedly connected to the valve stem. When the valve stem rotates, the indicator block also rotates with the valve stem, allowing the operator to determine the rotation angle of the ball based on the rotation angle of the indicator block, resulting in a superior indication effect.

[0004] While the comparative patent solved the problem of unclear indicator marks and the inconvenience of operation, where operators could only rely on experience to turn the handle 90°, the device could not automatically shut off the water flow, which could easily lead to users forgetting to turn off the water valve and wasting water resources.

[0005] Regarding the aforementioned technologies, the device cannot automatically shut off the water flow, which can easily lead to users forgetting to turn off the water valve, resulting in water waste. Utility Model Content

[0006] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a floating ball valve that has the advantages of automatically shutting off the water flow, thus preventing water waste caused by users forgetting to turn off the valve. This solves the problem of water waste caused by the inability to automatically shut off the water flow.

[0007] (II) Technical Solution To achieve the goal of automatically shutting off the water flow and preventing water waste caused by users forgetting to turn off the water valve, this utility model provides the following technical solution: a floating ball valve, including a valve body, a connector at the top of the valve body, a rotating rod rotatably connected to the inner wall of the connector, a valve ball fixedly connected to the bottom of the rotating rod, a channel on one side of the valve ball, a connecting box fixedly connected to the top of the connector, a spiral spring fixedly connected to the inner wall of the connecting box, a buffer rod fixedly connected to the outer wall of the rotating rod, and a buffer component provided at the top of the connector.

[0008] In a preferred embodiment of this invention, the bottom of the rotating rod extends into the interior of the valve body, and the outer wall of the valve ball is rotatably connected to the inner wall of the valve body.

[0009] As a preferred embodiment of this utility model, a rotating handle is fixedly connected to the top of the rotating rod, and anti-slip particles are fixedly connected to the outer wall of the rotating handle.

[0010] In a preferred embodiment of this invention, the rotating rod is rotatably sleeved with the connecting box, and one end of the spiral spring is fixedly connected to the outer wall of the rotating rod.

[0011] As a preferred technical solution of this utility model, the buffer component includes a support frame fixedly connected to the top of the connector. The support frame is U-shaped, and the inner wall of the support frame is provided with a connecting shaft. The outer wall of the connecting shaft is rotatably connected to a buffer plate, and the two sides of the buffer plate are inclined surfaces.

[0012] As a preferred embodiment of this utility model, a buffer spring is fixedly connected to one side of the buffer plate, and one end of the buffer spring is fixedly connected to the top of the connecting member.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a floating ball valve, which has the following advantages: 1. After turning the handle to rotate the valve ball to open the water flow, the spiral spring is tightened. Then, after releasing the handle, the elastic force of the spiral spring will drive the rotating rod to reset, and the rotating rod will automatically drive the valve ball to reset, thus automatically shutting off the water flow. This device can automatically shut off the water flow, so that the user will not forget to turn off the water valve and waste water resources.

[0014] 2. When the rotating rod rotates, the buffer rod will pass through the inclined surface of the buffer plate, and the buffer plate will rotate under the force. The buffer rod can then pass through the buffer plate. After the buffer plate rotates under the force, the buffer spring will stretch. After the buffer rod passes through the buffer plate, the buffer plate will be reset by the elastic force of the buffer spring, thus buffering the rotation of the rotating rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a floating ball valve; Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a top view of the connecting box in this application.

[0016] In the diagram: 1. Valve body; 2. Connector; 3. Valve ball; 4. Channel; 5. Rotating rod; 6. Rotating handle; 7. Anti-slip particles; 8. Buffer rod; 9. Connecting box; 10. Scroll spring; 11. Support frame; 12. Buffer plate; 13. Buffer spring. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Example 1 Reference Figure 1-3 The first embodiment of this utility model provides a floating ball valve, including a valve body 1, a connector 2 on the top of the valve body 1, a rotating rod 5 rotatably connected to the inner wall of the connector 2, a valve ball 3 fixedly connected to the bottom of the rotating rod 5, a channel 4 on one side of the valve ball 3, a connecting box 9 fixedly connected to the top of the connector 2, a spiral spring 10 fixedly connected to the inner wall of the connecting box 9, a buffer rod 8 fixedly connected to the outer wall of the rotating rod 5, and a buffer component on the top of the connector 2.

[0019] Reference Figure 1 The bottom of the rotating rod 5 extends into the interior of the valve body 1, and the outer wall of the valve ball 3 is rotatably connected to the inner wall of the valve body 1. The rotation of the rotating rod 5 can drive the valve ball 3 to rotate, thereby opening and closing the water flow.

[0020] Specifically, a rotating handle 6 is fixedly connected to the top of the rotating rod 5, and anti-slip particles 7 are fixedly connected to the outer wall of the rotating handle 6. The rotating rod 5 can be rotated by rotating the handle 6, which in turn drives the valve ball 3 to rotate, thereby opening and closing the water flow. The anti-slip particles 7 can increase the friction between the hand and the rotating handle 6, thereby improving the anti-slip effect.

[0021] Specifically, the rotating rod 5 is rotatably sleeved with the connecting box 9, and one end of the spiral spring 10 is fixedly connected to the outer wall of the rotating rod 5. After the rotating rod 5 rotates, it will be reset by the spiral spring 10, thereby realizing the automatic reset of the valve ball 3.

[0022] Reference Figure 1-3 The buffer component includes a support frame 11 fixedly connected to the top of the connector 2. The support frame 11 is U-shaped. The inner wall of the support frame 11 is provided with a connecting shaft, and the outer wall of the connecting shaft is rotatably connected to a buffer plate 12. The two sides of the buffer plate 12 are inclined surfaces. The support frame 11 can play the role of connection and support. When the rotating rod 5 rotates, the buffer rod 8 will pass through the inclined surface of the buffer plate 12, and the buffer plate 12 will be subjected to force and rotate, so the buffer rod 8 can pass through the buffer plate 12.

[0023] Furthermore, a buffer spring 13 is fixedly connected to one side of the buffer plate 12. One end of the buffer spring 13 is fixedly connected to the top of the connector 2. After the buffer plate 12 is rotated by the force, the buffer spring 13 will be stretched. After the buffer rod 8 passes through the buffer plate 12, the buffer plate 12 will be reset by the elastic force of the buffer spring 13, thereby buffering the rotation of the rotating rod 5.

[0024] During use, after turning the handle 6 to rotate the valve ball 3 to open the water flow, the spiral spring 10 is tightened. Then, after releasing the handle 6, the elastic force of the spiral spring 10 will drive the rotating rod 5 to reset. When the rotating rod 5 rotates, the buffer rod 8 will pass through the inclined surface of the buffer plate 12, and the buffer plate 12 will rotate under the force. The buffer rod 8 can then pass through the buffer plate 12. After the buffer plate 12 rotates under the force, the buffer spring 13 will stretch. After the buffer rod 8 passes through the buffer plate 12, the buffer plate 12 will reset under the elastic force of the buffer spring 13, thus buffering the rotation of the rotating rod 5.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A floating ball valve, comprising a valve body (1), wherein a connector (2) is provided at the top of the valve body (1), a rotating rod (5) is rotatably connected to the inner wall of the connector (2), and a valve ball (3) is fixedly connected to the bottom of the rotating rod (5), characterized in that: A channel (4) is provided on one side of the valve ball (3), a connecting box (9) is fixedly connected to the top of the connector (2), a spiral spring (10) is fixedly connected to the inner wall of the connecting box (9), a buffer rod (8) is fixedly connected to the outer wall of the rotating rod (5), and a buffer component is provided on the top of the connector (2).

2. A floating ball valve according to claim 1, characterized in that: The bottom of the rotating rod (5) extends into the interior of the valve body (1), and the outer wall of the valve ball (3) is rotatably connected to the inner wall of the valve body (1).

3. A floating ball valve according to claim 1, characterized in that: The top of the rotating rod (5) is fixedly connected to a rotating handle (6), and the outer wall of the rotating handle (6) is fixedly connected to anti-slip particles (7).

4. A floating ball valve according to claim 1, characterized in that: The rotating rod (5) is rotatably sleeved with the connecting box (9), and one end of the spiral spring (10) is fixedly connected to the outer wall of the rotating rod (5).

5. A floating ball valve according to claim 1, characterized in that: The buffer component includes a support frame (11) fixedly connected to the top of the connector (2). The support frame (11) is U-shaped. The inner wall of the support frame (11) is provided with a connecting shaft. The outer wall of the connecting shaft is rotatably connected to a buffer plate (12). The two sides of the buffer plate (12) are inclined surfaces.

6. A floating ball valve according to claim 5, characterized in that: A buffer spring (13) is fixedly connected to one side of the buffer plate (12), and one end of the buffer spring (13) is fixedly connected to the top of the connector (2).

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