Ball valve for liquid flow control

Abstract

The utility model provides a ball valve for liquid flow control, which relates to the technical field of ball valves, and comprises a valve body, a ball is arranged in the valve body, a channel is arranged in the ball, a valve rod is fixedly connected above the ball, one end of the valve rod penetrates through the valve body, a water outlet device is arranged on the lower surface of the valve body, and a water outlet is arranged on the lower surface of the valve body. The water outlet device comprises a fixing pipe, the fixing pipe is arranged on the lower surface of the valve body in a sliding and inserting mode, the arc surface of the fixing pipe is fixedly connected with two mutually-symmetrical reserved holes, the end, located outside the valve body, of the fixing pipe is fixedly connected with a water outlet pipe, and the arc surface of the fixing pipe is fixedly connected with two mutually-symmetrical fixing plates. One side of the fixing plate is fixedly connected with a spring, the effect that water in the ball channel flows out is achieved through the water outlet device, and the situation that the water in the ball channel freezes in cold weather is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a ball valve for liquid flow control. Background Technology

[0002] Ball valves are mainly used for liquid flow control and play a crucial role in the national economy. They have a 90-degree rotation action, and the plug body is a ball with a circular through hole or channel through its axis.

[0003] In existing technology, after the ball valve is closed, some liquid remains inside the ball valve's channel. When the weather is cold, this liquid can freeze. This ice can easily hinder the rotation of the ball valve, causing it to fail to open properly and reducing its usability. Utility Model Content

[0004] This utility model proposes a ball valve for liquid flow control to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ball valve for liquid flow control, comprising a valve body, wherein a sphere is disposed inside the valve body, and a channel is opened inside the sphere. A valve stem is fixedly connected to the top of the sphere, one end of the valve stem passing through the valve body. A water outlet device is provided on the lower surface of the valve body, the water outlet device comprising a fixed pipe, the fixed pipe being slidably disposed on the lower surface of the valve body, two mutually symmetrical reserved holes being fixedly connected to the arc surface of the fixed pipe, a water outlet pipe being fixedly connected to one end of the fixed pipe located outside the valve body, two mutually symmetrical fixed plates being fixedly connected to the arc surface of the fixed pipe, a spring being fixedly connected to one side of the fixed plate, a rectangular groove being opened on the valve body corresponding to the fixed plate, and the other end of the spring being fixedly connected to the inner wall of the rectangular groove.

[0006] The effect achieved by the above components is as follows: When the valve body is not needed, the operator rotates the ball via the valve stem to close the valve body. At this time, the operator pushes the fixed tube, which moves to one side of the ball channel. The spring on the fixed plate contracts, and when the reserved hole on the fixed tube moves into the ball channel, the water remaining in the channel enters the fixed tube through the reserved hole. Finally, the water is discharged through the outlet pipe. When the water in the channel has drained, the operator releases the fixed tube. Under the action of the spring's return force, the fixed tube moves away from the ball. The reserved hole in the fixed tube fits against the inner wall of the ball, and the water outlet device achieves the effect of draining the water in the ball channel, preventing the water inside the ball channel from freezing in cold weather.

[0007] Preferably, a pressing plate is fixedly connected to one end of the fixed tube located outside the valve body, and the surface of the pressing plate is provided with anti-slip texture.

[0008] The effect achieved by the above components is to increase the contact area between the worker's hand and the fixed tube by setting up the pressing plate, thereby making it easier for the worker to move the fixed tube.

[0009] Preferably, a circular plate is fixedly connected to one end of the fixed tube inside the spherical channel, and a sealing ring is fixedly connected to one side of the circular plate.

[0010] The effect achieved by the above components is that by setting the sealing ring on the circular plate to contact the sphere, the gap between the fixed pipe and the sphere is sealed, preventing water from flowing out of the gap when the valve body is working.

[0011] Preferably, the sphere has a placement groove inside, and the size of the placement groove is adapted to the size of the circular plate.

[0012] The effect achieved by the above components is that the circular plate is stored in the placement slot, thus preventing the circular plate from affecting the water flow when the valve body is working.

[0013] Preferably, the bottom of the valve body is provided with an auxiliary device, the auxiliary device including a protective frame, the protective frame being fixedly connected to the bottom of the valve body, the fixing tube being located inside the protective frame, a cover plate being slidably connected to one side of the protective frame, and a magnet being fixedly connected to one end of the cover plate, the protective frame being an iron frame.

[0014] The effect achieved by the above-mentioned components is as follows: When it is necessary to move the fixed pipe, the operator first moves the cover plate, and the magnet on the cover plate moves away from the protective frame. At this time, the fixed pipe under the cover plate is exposed. The operator operates the fixed pipe to let the water in the spherical channel flow out. After the fixed pipe is operated, the operator releases the cover plate. Under the attraction of the magnet to the protective frame, the cover plate covers the protective frame again, thus achieving the effect of protecting the fixed pipe. The auxiliary device achieves the effect of protecting the fixed pipe, preventing the operator from accidentally touching the fixed pipe when the valve body is working, which could lead to water leakage from the valve body.

[0015] Preferably, two symmetrical sliding plates are fixedly connected to one side of the cover plate, and the protective frame is provided with a sliding groove corresponding to the sliding plate, and the sliding plate and the sliding groove are slidably adapted to each other.

[0016] The effect achieved by the above components is that the sliding plate of the cover moves in the groove of the protective frame, thereby restricting the direction of movement of the cover and improving the stability of the cover movement.

[0017] Preferably, a handle is fixedly connected to one end of the cover plate, and the handle has a U-shaped cross-section.

[0018] The effect achieved by the above-mentioned components is that by setting handles, it is convenient for staff to move the cover plate, thus bringing convenience to the staff.

[0019] Preferably, the surface of the cover plate is fixedly connected with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are linearly distributed.

[0020] The effect achieved by the above-mentioned components is that the overall strength of the cover plate is improved by setting reinforcing ribs, thus preventing damage to the cover plate.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] When the valve body is not in use, the operator rotates the ball via the valve stem to close the valve. At this time, the operator pushes the fixed tube, which moves to one side of the ball channel. The spring on the fixed plate contracts, and when the reserved hole on the fixed tube moves into the ball channel, the water remaining in the channel enters the fixed tube through the reserved hole. Finally, the water is discharged through the outlet pipe. When the water in the channel has drained, the operator releases the fixed tube. Under the action of the spring's return force, the fixed tube moves away from the ball. The reserved hole in the fixed tube fits against the inner wall of the ball, and the water outlet device achieves the effect of draining the water in the ball channel, preventing the water inside the ball channel from freezing in cold weather. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This utility model Figure 1 A sectional view;

[0025] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0026] Figure 4 This is a three-dimensional structural diagram of the fixing tube of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the auxiliary device of this utility model.

[0028] Legend: 1. Valve body; 2. Ball; 3. Valve stem; 4. Water outlet device; 41. Fixed pipe; 42. Reserved hole; 43. Water outlet pipe; 44. Fixed plate; 45. Spring; 46. Rectangular groove; 47. Circular plate; 48. Sealing ring; 49. Placement groove; 410. Pressing plate; 5. Auxiliary device; 51. Protective frame; 52. Cover plate; 53. Magnet; 54. Handle; 55. Slide plate; 56. Slide groove; 57. Reinforcing rib. Detailed Implementation

[0029] Reference Figure 1-5 As shown, this embodiment discloses a ball valve for liquid flow control, including a valve body 1, a ball 2 inside the valve body 1, a channel inside the ball 2, a valve stem 3 fixedly connected to the top of the ball 2, one end of the valve stem 3 passing through the valve body 1, a water outlet device 4 on the lower surface of the valve body 1, and an auxiliary device 5 at the bottom of the valve body 1.

[0030] Reference Figure 1-5 As shown, the water outlet device 4 includes a fixed pipe 41, which is slidably installed on the lower surface of the valve body 1. The arc surface of the fixed pipe 41 is fixedly connected to two mutually symmetrical reserved holes 42. One end of the fixed pipe 41 located outside the valve body 1 is fixedly connected to a water outlet pipe 43. The arc surface of the fixed pipe 41 is fixedly connected to two mutually symmetrical fixed plates 44. A spring 45 is fixedly connected to one side of the fixed plate 44. A rectangular groove 46 is opened on the valve body 1 corresponding to the fixed plate 44. The other end of the spring 45 is fixedly connected to the inner wall of the rectangular groove 46. When valve body 1 is not needed, the operator rotates ball 2 via valve stem 3 to close valve body 1. At this time, the operator pushes fixed pipe 41, which moves to one side of the ball 2 channel. Spring 45 on fixed plate 44 contracts. After the reserved hole 42 on fixed pipe 41 moves into the ball 2 channel, the water remaining in the channel enters fixed pipe 41 through the reserved hole 42. Finally, the water is discharged through outlet pipe 43. After the water in the channel has drained, the operator releases fixed pipe 41. Under the action of the spring 45's return force, fixed pipe 41 moves away from ball 2. The reserved hole 42 in fixed pipe 41 fits against the inner wall of ball 2, and the water outlet device 4 achieves the effect of draining water from the ball 2 channel, preventing the water inside the ball 2 channel from freezing in cold weather.

[0031] Reference Figure 1-5 As shown, a pressing plate 410 is fixedly connected to one end of the fixed pipe 41 located outside the valve body 1. The surface of the pressing plate 410 is provided with anti-slip texture. By setting the pressing plate 410, the contact area between the operator's hand and the fixed pipe 41 is increased, thereby facilitating the operator's movement of the fixed pipe 41. A circular plate 47 is fixedly connected to one end of the fixed pipe 41 located inside the channel of the sphere 2. A sealing ring 48 is fixedly connected to one side of the circular plate 47. By setting the sealing ring 48 on the circular plate 47 to contact the sphere 2, the gap between the fixed pipe 41 and the sphere 2 is sealed, preventing water from flowing out of the gap when the valve body 1 is working. A placement groove 49 is opened inside the sphere 2, and the size of the placement groove 49 is adapted to the size of the circular plate 47. By setting the placement groove 49, the circular plate 47 is stored, preventing the circular plate 47 from affecting the water flow when the valve body 1 is working.

[0032] Reference Figure 1-5As shown, the auxiliary device 5 includes a protective frame 51, which is fixedly connected to the bottom of the valve body 1. The fixed pipe 41 is located inside the protective frame 51. A cover plate 52 is slidably connected to one side of the protective frame 51, and a magnet 53 is fixedly connected to one end of the cover plate 52. The protective frame 51 is made of iron. When the fixed pipe 41 needs to be moved, the operator first moves the cover plate 52, and the magnet 53 on the cover plate 52 moves away from the protective frame 51. At this time, the fixed pipe 41 under the cover plate 52 is exposed. The operator operates the fixed pipe 41 to let the water in the sphere 2 channel flow out. After operating the fixed pipe 41, the operator releases the cover plate 52. Under the attraction of the magnet 53 to the protective frame 51, the cover plate 52 covers the protective frame 51 again, achieving the effect of protecting the fixed pipe 41. The auxiliary device 5 achieves the effect of protecting the fixed pipe 41, preventing the operator from accidentally touching the fixed pipe 41 when the valve body 1 is working, thus avoiding water leakage from the valve body 1.

[0033] Reference Figure 1-5 As shown, two symmetrical sliding plates 55 are fixedly connected to one side of the cover plate 52. A groove 56 is provided on the protective frame 51 corresponding to the sliding plates 55, allowing the sliding plates 55 to slide smoothly into the groove 56. The movement of the sliding plates 55 within the groove 56 of the protective frame 51 restricts the direction of movement of the cover plate 52, improving its stability. A handle 54 is fixedly connected to one end of the cover plate 52, and the handle 54 has a U-shaped cross-section. The handle 54 facilitates movement of the cover plate 52 for the operator. Several reinforcing ribs 57 are fixedly connected to the surface of the cover plate 52, arranged linearly. These reinforcing ribs 57 improve the overall strength of the cover plate 52, preventing damage.

[0034] Working principle: When valve body 1 is not needed, the operator rotates ball 2 via valve stem 3, closing valve body 1. At this time, the operator pushes fixed pipe 41 via pressing plate 410, moving fixed pipe 41 into one side of the ball 2 channel. Spring 45 on fixed plate 44 contracts. When the pre-drilled hole 42 on fixed pipe 41 moves into the ball 2 channel, residual water in the channel enters fixed pipe 41 through the pre-drilled hole 42. Finally, the water is discharged through outlet pipe 43. After the water in the channel has drained, the operator releases the valve. When the pressing plate 410 is opened, under the action of the spring 45's return force, the fixing tube 41 moves away from the sphere 2. The reserved hole 42 in the fixing tube 41 fits against the inner wall of the sphere 2. Finally, the circular plate 47 at one end of the fixing tube 41 enters the placement groove 49. The circular plate 47 seals the gap between the fixing tube 41 and the sphere 2 with the help of the sealing ring 48. The water outlet device 4 achieves the effect of water flowing out of the channel of the sphere 2, preventing the water inside the channel of the sphere 2 from freezing in cold weather.

[0035] When the fixed pipe 41 needs to be moved, the operator first moves the cover plate 52 by using the handle 54. The sliding plate 55 of the cover plate 52 moves in the groove 56 of the protective frame 51, which restricts the movement direction of the cover plate 52. The magnet 53 on the cover plate 52 moves away from the protective frame 51. At this time, the fixed pipe 41 under the cover plate 52 is exposed. The operator operates the fixed pipe 41 to let the water in the sphere 2 channel flow out. After the fixed pipe 41 is operated, the operator releases the handle 54. Under the attraction of the magnet 53 to the protective frame 51, the cover plate 52 covers the protective frame 51 again, achieving the effect of protecting the fixed pipe 41. The auxiliary device 5 achieves the effect of protecting the fixed pipe 41, preventing the operator from accidentally touching the fixed pipe 41 when the valve body 1 is working, which would cause the valve body 1 to leak water.

Claims

1. A ball valve for liquid flow control, comprising a valve body (1), characterized in that: The valve body (1) has a sphere (2) inside, and a channel is opened inside the sphere (2). A valve stem (3) is fixedly connected to the top of the sphere (2). One end of the valve stem (3) passes through the valve body (1). The lower surface of the valve body (1) is provided with a water outlet device (4). The water outlet device (4) includes a fixed pipe (41). The fixed pipe (41) is slidably installed on the lower surface of the valve body (1). Two phases are fixedly connected to the arc surface of the fixed pipe (41). The valve body (1) has symmetrical pre-drilled holes (42). One end of the fixed pipe (41) located outside the valve body (1) is fixedly connected to a water outlet pipe (43). The arc surface of the fixed pipe (41) is fixedly connected to two symmetrical fixed plates (44). One side of the fixed plate (44) is fixedly connected to a spring (45). The valve body (1) has a rectangular groove (46) corresponding to the fixed plate (44). The other end of the spring (45) is fixedly connected to the inner wall of the rectangular groove (46).

2. The ball valve for liquid flow control according to claim 1, characterized in that: The fixed tube (41) is fixedly connected to a pressing plate (410) at one end outside the valve body (1), and the surface of the pressing plate (410) is provided with anti-slip texture.

3. A ball valve for liquid flow control according to claim 1, characterized in that: The fixed tube (41) is fixedly connected to a circular plate (47) at one end inside the channel of the sphere (2), and a sealing ring (48) is fixedly connected to one side of the circular plate (47).

4. A ball valve for liquid flow control according to claim 3, characterized in that: The sphere (2) has a placement groove (49) inside, and the size of the placement groove (49) is adapted to the size of the circular plate (47).

5. A ball valve for liquid flow control according to claim 1, characterized in that: The bottom of the valve body (1) is provided with an auxiliary device (5). The auxiliary device (5) includes a protective frame (51). The protective frame (51) is fixedly connected to the bottom of the valve body (1). The fixing tube (41) is located inside the protective frame (51). A cover plate (52) is slidably connected to one side of the protective frame (51). A magnet (53) is fixedly connected to one end of the cover plate (52). The protective frame (51) is an iron frame.

6. A ball valve for liquid flow control according to claim 5, characterized in that: Two symmetrical sliding plates (55) are fixedly connected to one side of the cover plate (52). The protective frame (51) has a groove (56) corresponding to the sliding plate (55). The sliding plate (55) and the groove (56) are slidably adapted to each other.

7. A ball valve for liquid flow control according to claim 5, characterized in that: A handle (54) is fixedly connected to one end of the cover plate (52), and the handle (54) has a U-shaped cross section.

8. A ball valve for liquid flow control according to claim 5, characterized in that: The surface of the cover plate (52) is fixedly connected with a number of reinforcing ribs (57), and the number of reinforcing ribs (57) are linearly distributed.

Images