Waterproof assembly of ball valve transmission mechanism

Abstract

The utility model relates to a waterproof assembly of a ball valve transmission mechanism, and belongs to the technical field of ball valves. Comprising a valve body, a valve ball and a connecting base, a water inlet pipe and a water outlet pipe are symmetrically arranged on the two sides of the valve body, and a gooseneck pipe is arranged at one end of the water outlet pipe; the valve rod penetrates through the top of the valve body and is connected with the valve ball, the connecting seat is located on the outer side of the valve body, a notch is formed in the top of the valve body, a groove is formed in the valve ball, and the connecting seat penetrates through the notch and extends to the bottom of the groove. The connecting base comprises a sealing sleeve, and a sealing assembly is arranged between the sealing sleeve and the valve ball. According to the waterproof assembly of the ball valve transmission mechanism, in the using process, the bottom of the valve rod can be prevented from making contact with water in the valve body through the connecting base to avoid corrosion, and it can be guaranteed that the valve rod can be prevented from being corroded by rainwater even if the waterproof assembly is used outdoors through the arranged baffle; and in addition, the dehumidification filler is matched with the dehumidification filler, so that the valve rod can be effectively dehumidified, and the rusting risk of the valve rod can be remarkably reduced.

Description

Technical Field

[0001] The utility model relates to a waterproof component for a ball valve transmission mechanism, belonging to the technical field of ball valves. Background Art

[0002] A ball valve is a valve device used to control the flow of oil and gas fluids. It is usually widely used in the pipeline systems of fields such as petroleum, natural gas, and chemical industry to regulate and cut off the fluid flow. The opening and closing part of the ball valve is a sphere with a circular channel. The sphere rotates around the axis perpendicular to the channel, and the purpose of opening and closing the channel is achieved by the rotation of the sphere with the valve stem. When the ball valve rotates 90 degrees, the spherical surfaces should be fully presented at the inlet and outlet to cut off or open the flow of the medium.

[0003] In the existing ball valve, a valve core is fixed inside, and a valve stem is fixed on the valve core. The rotation of the valve stem drives the valve core to rotate to realize the on-off of the flow channel. In this assembly form, the valve stem in the valve body will come into contact with water. During long-term use, the valve stem will rust, which will not only affect the normal use performance of the ball valve, but also shorten the service life of the ball valve and increase the maintenance cost. Summary of the Utility Model

[0004] The utility model provides a waterproof component for a ball valve transmission mechanism to solve the problem that the valve stem will rust due to long-term contact with water in the prior art, and thus can significantly reduce the risk of valve stem rust and extend the service life of the ball valve.

[0005] The utility model provides a waterproof component for a ball valve transmission mechanism, which includes a valve body, a valve ball, and a connecting seat. The two sides of the valve body are symmetrically provided with a water inlet pipe and a water outlet pipe. A gooseneck pipe is provided at one end of the water outlet pipe far from the valve body. A baffle is slidably connected to the valve body, and a valve stem connected to the valve ball is provided;

[0006] The valve stem penetrates through the top of the valve body and is connected to the valve ball. The connecting seat is located outside the valve body. A notch corresponding to the connecting seat is provided at the top of the valve body. A groove corresponding to the notch is provided on the valve ball. The connecting seat penetrates through the notch and extends to the bottom of the groove;

[0007] The connecting seat includes a sealing sleeve. The valve stem is slidably connected with the sealing sleeve, and a sealing component is provided between the sealing sleeve and the valve ball.

[0008] Preferably, flange seats are provided at one ends of the gooseneck pipe and the water inlet pipe far from the valve body.

[0009] Preferably, a limiting groove corresponding to the valve stem is provided at the bottom of the groove. The bottom of the valve stem is inserted into the limiting groove to drive the valve ball to rotate.

[0010] Preferably, the sealing assembly includes a first sealing ring and a second sealing ring. The first sealing ring is located at the connection between both sides of the sealing sleeve and the valve ball, and the second sealing ring is located at the connection between the bottom of the sealing sleeve and the valve ball.

[0011] Preferably, a protrusion is provided at the bottom of the valve stem, and circular sliding is performed between the protrusion and the inner wall of the sealing sleeve.

[0012] Preferably, the connecting seat further includes a dehumidifying filler. There is a gap between the valve stem above the protrusion and the inner wall of the sealing sleeve, and the dehumidifying filler is located in the gap. A cover plate threadedly connected to the sealing sleeve is provided at the top of the dehumidifying filler, and the top of the valve stem penetrates through the cover plate.

[0013] Preferably, sliders are provided on both sides of the bottom of the baffle, and chutes corresponding to the sliders are provided on both the water inlet pipe and the water outlet pipe. The baffle performs circular sliding along the chutes through the sliders.

[0014] Preferably, two spaced-apart limiting magnets are provided on the chute, and magnets corresponding to the limiting magnets are provided at both ends of the slider.

[0015] Preferably, a handle is provided on the valve stem. The valve stem drives the valve ball to rotate through the handle. A first limiting block fixedly connected thereto is provided on the handle. The first limiting block is in an L shape. A second limiting block corresponding to the first limiting block is provided on the cover plate. The second limiting block is in an I shape and is located on the opposite side of the first limiting block. A notch corresponding to the handle is provided on the baffle.

[0016] Advantages of the present utility model:

[0017] The present utility model provides a waterproof assembly for a ball valve transmission mechanism. During use, the connection seat can prevent the bottom of the valve stem from contacting the water body in the valve body to avoid corrosion. By providing the baffle, it can ensure that even when used outdoors, the valve stem can be protected from rainwater corrosion, and in cooperation with the dehumidifying filler, it can effectively dehumidify the valve stem, thereby significantly reducing the risk of valve stem rust and extending the service life of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded structural schematic diagram of a waterproof assembly for a ball valve transmission mechanism of the present utility model.

[0019] Figure 2 It is a structural schematic diagram of a waterproof assembly for a ball valve transmission mechanism of the present utility model.

[0020] Figure 3 It is a front view structural schematic diagram of a waterproof assembly for a ball valve transmission mechanism of the present utility model.

[0021] Figure 4Schematic cross-sectional structure diagram of a waterproof component of a ball valve drive mechanism of the present utility model.

[0022] Figure 5 Schematic diagram of the valve stem structure of a waterproof component of a ball valve drive mechanism of the present utility model.

[0023] Figure 6 Partial structure schematic diagram of a waterproof component of a ball valve drive mechanism of the present utility model.

[0024] Figure 7 Partial structure schematic diagram of the valve stem of a waterproof component of a ball valve drive mechanism of the present utility model.

[0025] (1. Valve body, 11. Water inlet pipe, 12. Water outlet pipe, 13. Valve ball, 14. Chute, 141. Limit magnet, 2. Gooseneck tube, 3. Baffle, 31. Slide block, 4. Valve stem, 41. Protrusion, 42. Handle, 421. First limit block, 5. Connecting seat, 51. Sealing sleeve, 52. First sealing ring, 53. Second sealing ring, 54. Dehumidifying filler, 55. Cover plate, 551. Second limit block, 6. Flange seat) Detailed implementation manners Embodiment

[0026] Next, the preferred embodiments of the present utility model will be described in detail with reference to the drawings.

[0027] The present utility model provides a waterproof component of a ball valve drive mechanism, which includes a valve body 1, a valve ball 13, and a connecting seat 5. The two sides of the valve body 1 are symmetrically provided with a water inlet pipe 11 and a water outlet pipe 12. A gooseneck tube 2 is provided at one end of the water outlet pipe 12 away from the valve body 1. Flange seats 6 are provided at one ends of the gooseneck tube 2 and the water inlet pipe 11 away from the valve body 1. A baffle 3 connected to the valve ball 13 is slidably connected to the valve body 1. The baffle 3 can block water outside the valve stem 4 to avoid erosion by rainwater when used outdoors.

[0028] The valve stem 4 penetrates through the top of the valve body 1 and is connected to the valve ball 13. The connecting seat 5 is located outside the valve body 1. A notch corresponding to the connecting seat 5 is provided at the top of the valve body 1. A groove corresponding to the notch is provided on the valve ball 13. The connecting seat 5 penetrates through the notch and extends to the bottom of the groove to wrap the bottom of the valve stem 4 through the connecting seat 5 to avoid contact between the valve stem 4 and water.

[0029] The connecting seat 5 includes a sealing sleeve 51. The valve stem 4 is slidably connected to the sealing sleeve 51. A sealing component is provided between the sealing sleeve 51 and the valve ball 13 to isolate water through the sealing component.

[0030] In this embodiment, a limiting groove corresponding to the valve stem 4 is provided at the bottom of the groove, and the bottom of the valve stem 4 is inserted into the limiting groove to drive the valve ball 13 to rotate.

[0031] In this embodiment, the sealing assembly includes a first sealing ring 52 and a second sealing ring 53. The first sealing ring 52 is located at the joints between the two sides of the sealing sleeve 51 and the valve ball 13, and the second sealing ring 53 is located at the joint between the bottom of the sealing sleeve 51 and the valve ball 13. Double sealing can be achieved through the mutual cooperation of the first sealing ring 52 and the second sealing ring 53.

[0032] When in use in this embodiment, rotating the valve stem 4 can drive the rotation of the valve ball 13 to control the opening and closing of the valve body 1. When the valve stem 4 is in use, the sealing sleeve 51 wraps the valve stem 4 to isolate the valve stem 4 from the water body to prevent the valve stem 4 from being eroded by the water body. The first sealing ring 52 and the second sealing ring 53 respectively arranged on the two sides and the bottom of the sealing sleeve 51 can perform double sealing between the sealing sleeve 51 and the valve ball 13, further preventing the valve stem 4 from being eroded by the water body. The top of the valve stem 4 is protected by the provided baffle 3 to prevent rain erosion when used outdoors.

[0033] Compared with the prior art, by wrapping the valve stem 4 with the sealing sleeve 51 and arranging the first sealing ring 52 and the second sealing ring 53 between the sealing sleeve 51 and the valve ball 13, double sealing of the valve stem 4 is achieved, effectively isolating the erosion of the water body on the valve stem, which can extend the service life of the ball valve. And the double-sealing design not only improves the waterproof performance, but also can maintain a stable sealing effect even under the conditions of water pressure fluctuation or external environment change, preventing the valve stem 4 from being eroded due to water leakage, significantly reducing the corrosion risk, maintaining the smoothness and rotational flexibility of the valve stem, ensuring the normal operation of the valve ball 13, reducing the frequency of valve stem replacement due to corrosion, thereby reducing the maintenance cost and workload. Embodiment

[0034] In order to further enhance the corrosion resistance of the valve stem 4, as Figure 5 shown, this embodiment is a further improvement on Embodiment 1;

[0035] A convex portion 41 is provided at the bottom of the valve stem 4, and the convex portion 41 makes a circumferential sliding between the inner wall of the sealing sleeve 51.

[0036] The connecting seat 5 further includes a dehumidifying filler 54. There is a gap between the valve stem 4 above the convex portion 41 and the inner wall of the sealing sleeve 51. The dehumidifying filler 54 is located in the gap. A cover plate 55 threadedly connected to the sealing sleeve 51 is provided at the top of the dehumidifying filler 54, and the top of the valve stem 4 penetrates through the cover plate 55.

[0037] In this embodiment, when in use, the dehumidifying filler 54 can dehumidify the valve stem 4 to ensure that the valve stem 4 is dry and avoid being eroded by moisture. The threaded connection between the cover plate 55 and the sealing sleeve 51 facilitates the replacement of the dehumidifying filler 54.

[0038] Compared with the prior art, by filling the dehumidifying filler 54 in the gap between the valve stem 4 and the sealing sleeve 51, the moisture around the valve stem 4 can be effectively absorbed and removed, keeping the valve stem in a dry state, which can significantly improve the durability and service life of the valve stem 4. The replacement process of the dehumidifying filler 54 is simple. Just unscrew the cover plate 55 to carry out the replacement. When the dehumidifying filler reaches saturation or fails, users can easily replace it to ensure the continuous effectiveness of the dehumidifying effect. The filling of the dehumidifying filler 54 not only helps with dehumidification but also fills the tiny gap between the valve stem and the sealing sleeve to a certain extent, enhancing the sealing effect. This helps prevent external moisture and impurities from entering the internal transmission mechanism and further protects the valve stem 4 and the valve body 1 from erosion. Embodiment

[0039] In order to further enhance the corrosion resistance of the valve stem 4 and facilitate the opening and closing of the control valve ball 13, this embodiment is a further improvement on Embodiment 2;

[0040] Sliders 31 are provided on both sides of the bottom of the baffle 3. Corresponding chutes 14 are provided on the water inlet pipe 11 and the water outlet pipe 12. The baffle 3 slides circularly along the chutes 14 through the sliders 31.

[0041] Two spaced-apart limiting magnets 141 are provided on the chute 14. Magnets corresponding to the limiting magnets 141 are provided at both ends of the slider 31. The slider 31 is limited and fixed through the mutual cooperation of the limiting magnets 141 and the magnets;

[0042] A handle 42 is provided on the valve stem 4. The valve stem 4 drives the valve ball 13 to rotate through the handle 42. A first limiting block 421 is fixedly connected to the handle 42. The first limiting block 421 is L-shaped. A second limiting block 551 corresponding to the first limiting block 421 is provided on the cover plate 55. The second limiting block 551 is I-shaped and located opposite to the first limiting block 421. A notch corresponding to the handle 42 is provided on the baffle 3.

[0043] In this embodiment, when in use, the baffle 3 shields the valve stem 4. When it is necessary to control the opening and closing of the valve body 1, the baffle 3 is toggled upward so that the limit magnet 141 below the chute 14 no longer limits the corresponding magnet. The baffle 3 slides along the chute 14 through the slider 31. The rotation of the valve stem 4 is driven by rotating the handle 42 to control the opening and closing of the valve ball 13. When the handle 42 is in the initial position, one end of the first limit block 421 contacts one end of the second limit block 551 for limiting, ensuring that the handle 42 can only rotate in one direction. When the handle 42 rotates 90 degrees, the first limit block 421 at the other end contacts the second limit block 551 at the other end to limit the handle 42 again, thereby ensuring the rotation angle of the handle 42 to achieve the purpose of accurately controlling the valve ball 13.

[0044] Compared with the prior art, the baffle 3 shields the valve stem 4, effectively preventing external sundries such as rainwater and dust from directly contacting the valve stem 4. The baffle 3 slides circularly along the chute 14 through the slider 31, making the operation of the baffle 3 simple and smooth when opening and closing. At the same time, the mutual cooperation between the limit magnet 141 and the magnet realizes the automatic limit fixation of the slider 31, and the stable state of the baffle 3 can be maintained without additional operation; the first limit block 421 on the handle 42 and the second limit block 551 on the cover plate 55 cooperate with each other to limit the rotation angle of the handle 42, ensuring the accurate control of the valve ball 13, avoiding the position deviation or damage of the valve ball 13 caused by improper operation, improving the use safety and reliability of the valve ball 13, and significantly extending the service life of the valve ball 13. The cost and inconvenience brought by frequent maintenance and component replacement are reduced.

[0045] The above describes the present invention and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative work without departing from the creative purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A waterproof component of a ball valve transmission mechanism, comprising a valve body (1), a valve ball (13), and a connecting seat (5). The inlet pipe (11) and the outlet pipe (12) are symmetrically arranged on both sides of the valve body (1). It is characterized in that: One end of the outlet pipe (12) away from the valve body (1) is provided with a gooseneck pipe (2), and a sliding baffle (3) and a valve rod (4) connected to the valve ball (13) are arranged on the valve body (1); The valve rod (4) penetrates through the top of the valve body (1) and is connected to the valve ball (13). The connecting seat (5) is located outside the valve body (1). A notch corresponding to the connecting seat (5) is provided at the top of the valve body (1). A groove corresponding to the notch is provided on the valve ball (13). The connecting seat (5) penetrates through the notch and extends to the bottom of the groove; The connecting seat (5) includes a sealing sleeve (51). The valve rod (4) is slidably connected with the sealing sleeve (51), and a sealing component is arranged between the sealing sleeve (51) and the valve ball (13).

2. The waterproof component of a ball valve transmission mechanism according to claim 1, wherein: Flange seats (6) are provided at one ends of the gooseneck pipe (2) and the inlet pipe (11) away from the valve body (1).

3. The waterproof component of a ball valve transmission mechanism according to claim 1, characterized in that: A limiting groove corresponding to the valve rod (4) is provided at the bottom of the groove. The bottom of the valve rod (4) is inserted into the limiting groove to drive the valve ball (13) to rotate.

4. The waterproof component of a ball valve transmission mechanism according to claim 1, characterized in that: The sealing component includes a first sealing ring (52) and a second sealing ring (53). The first sealing ring (52) is located at the joints between both sides of the sealing sleeve (51) and the valve ball (13), and the second sealing ring (53) is located at the joint between the bottom of the sealing sleeve (51) and the valve ball (13).

5. The waterproof component of a ball valve transmission mechanism according to claim 1, characterized in that: A protruding portion (41) is provided at the bottom of the valve rod (4), and circular sliding is performed between the protruding portion (41) and the inner wall of the sealing sleeve (51).

6. The waterproof component of a ball valve transmission mechanism according to claim 5, characterized in that: The connecting seat (5) further includes a dehumidifying filler (54). A gap exists between the valve rod (4) above the protruding portion (41) and the inner wall of the sealing sleeve (51). The dehumidifying filler (54) is located in the gap. A cover plate (55) threadedly connected to the sealing sleeve (51) is provided at the top of the dehumidifying filler (54). The top of the valve rod (4) penetrates through the cover plate (55).

7. The waterproof component of a ball valve transmission mechanism according to claim 1, characterized in that: Sliders (31) are provided on both sides of the bottom of the baffle (3). Corresponding sliding grooves (14) are provided on the inlet pipe (11) and the outlet pipe (12). The baffle (3) performs circular sliding along the sliding grooves (14) through the sliders (31).

8. The waterproof component of a ball valve transmission mechanism according to claim 7, characterized in that: Two spaced-apart limiting magnets (141) are provided on the sliding grooves (14), and magnets corresponding to the limiting magnets (141) are provided at both ends of the sliders (31).

9. The waterproof component of a ball valve transmission mechanism according to claim 6, characterized in that: A handle (42) is provided on the valve rod (4). The valve rod (4) drives the valve ball (13) to rotate through the handle (42). A first limiting block (421) fixedly connected to the handle (42) is provided on the handle (42). The first limiting block (421) is in an L shape. A second limiting block (551) corresponding to the first limiting block (421) is provided on the cover plate (55). The second limiting block (551) is in an I shape and is located on the opposite side of the first limiting block (421). A notch corresponding to the handle (42) is provided on the baffle (3).

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