Ball valve with liquid accumulation prevention function

Abstract

The utility model relates to the field of ball valves, in particular to a ball valve with a liquid accumulation prevention function. The valve comprises a valve body. The two sides of the valve body are each provided with a first channel allowing liquid to flow through. And a cavity is communicated between the channels I on the two sides. The valve ball is arranged in the cavity; a second channel allowing liquid to flow through is formed in the valve ball. The rotating assembly is arranged at the top end of the valve ball, drives the valve ball to rotate to open / close the ball valve and moves up and down. The liquid discharging assembly is arranged at the lower end of the valve ball and matched with the rotating assembly to discharge residual accumulated liquid in the cavity and the second channel. The rotating assembly drives the valve ball to rotate and move downwards, the blocked first liquid inlet and the blocked second liquid inlet are exposed, residual liquid in the second channel and the cavity is discharged in time, and the situation that the quality of liquid flowing next time is affected due to the fact that the liquid goes bad after being placed for a long time is avoided. In addition, it can be ensured that the accumulated liquid discharging operation does not affect quick closing of the ball valve.

Description

Technical Field

[0001] The utility model relates to the field of ball valves, in particular to a ball valve with a function of preventing liquid accumulation. Background Art

[0002] A ball valve is a commonly used type of ball valve used to control the flow of fluid in a pipeline. Its main feature is that there is a hole inside the ball, and the flow of fluid is controlled by rotating the ball, thereby achieving control of the fluid flow.

[0003] A Chinese patent document with authorization announcement number CN215445152U proposes a liquid accumulation prevention ball valve, which includes a ball valve body, the ball valve body has a valve core rotatably arranged in the ball valve body; the valve core has a medium flow channel; the outer wall of the valve core is penetrated by a drainage hole; the drainage hole is connected to the medium flow channel; the valve core is provided with a blocking rod penetrated by the drainage hole; a blocking piece is fixed to one end of the blocking rod facing the medium flow channel, and the blocking piece is used to block the drainage hole; a slide groove is opened in the hole wall of the drainage hole; a slider slidably connected to the slide groove is provided on the side wall of the blocking rod; a telescopic spring is provided in the slide groove to force the slider away from the medium flow channel.

[0004] In the above application, although the liquid in the medium flow channel can flow out of the through hole due to gravity, when draining the liquid, it is necessary to first pull the plug out of the through hole and then install the liquid storage tank on the outer wall of the ball valve body. The operation is complicated and time-consuming, and the ball valve cannot be closed quickly. Utility Model Content

[0005] In view of the problems existing in the background technology, a ball valve with a liquid accumulation prevention function is proposed.

[0006] The utility model proposes a ball valve with a function of preventing liquid accumulation, comprising a valve body; two sides of the valve body are respectively provided with a channel 1 for liquid circulation; a chamber is connected between the two side channels 1. A valve ball is arranged in the chamber; a channel 2 for liquid circulation is arranged in the valve ball. A rotating assembly is arranged at the top of the valve ball, driving the valve ball to rotate to open / close the ball valve and move up and down at the same time. A sealing member is arranged on both sides of the valve ball to block the channel 1 and the chamber. And a liquid discharge assembly is arranged at the lower end of the valve ball, cooperating with the rotating assembly to discharge the residual accumulated liquid in the chamber and the channel 2.

[0007] Preferably, the rotating assembly includes a fixed sleeve arranged at the top of the valve body; a fixed column is connected to the fixed sleeve; a rotating column is arranged at the top of the valve ball, which passes through the valve body and is slidably connected to the fixed sleeve; a handle is connected to the upper end of the rotating column, and an arc-shaped groove is opened on the side wall; the fixed column is slidably connected to the arc-shaped groove.

[0008] Preferably, the sealing member comprises a spring sheet arranged on an inner wall of the channel; a sealing ring which matches the shape of the outer surface of the valve ball is connected to a side of the spring sheet close to the valve ball.

[0009] Preferably, a through groove is provided at the lower end of the valve ball; the upper end of the through groove is connected to channel two, and the lower end is connected to the chamber; the drain assembly includes a drain pipe arranged at the bottom end of the valve body; the upper half of the drain pipe slides through the through groove, the top of the drain pipe is connected to a sealing pad that seals the top of the drain pipe, and a liquid inlet one is provided at the upper end of the side wall; when the rotating assembly drives the valve ball to rotate upward, the groove wall of channel one will block the liquid inlet one; when the rotating assembly drives the valve ball to rotate downward, the liquid inlet one is exposed and connected to channel two.

[0010] Preferably, a second liquid inlet is provided at the lower end of the side wall of the discharge pipe; a sealing plate is connected to the lower end of the valve ball; when the rotating component drives the valve ball to rotate upward, the sealing plate will block the second liquid inlet; when the rotating component drives the valve ball to rotate downward, the second liquid inlet is exposed and connected to the chamber.

[0011] Preferably, the lower end of the liquid discharge pipe is detachably threadedly connected with a liquid collecting bottle; the liquid collecting bottle is connected to the liquid discharge pipe.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The ball valve with anti-liquid accumulation function drives the arc-shaped slide groove on the rotating column to slide along the fixed column by rotating the handle, thereby driving the valve ball to rotate and move downward, thereby exposing the blocked liquid inlet 1 and liquid inlet 2, so that the residual liquid in channel 2 and chamber can be discharged in time along liquid inlet 1 and liquid inlet 2 respectively, to prevent the liquid from being left for too long and deteriorating, thereby affecting the liquid quality of the next circulating liquid, and also causing the liquid to freeze when the temperature is too low, thereby freezing the valve ball. In addition, the accumulated liquid can be discharged while closing the ball valve, without any unnecessary steps, ensuring that the operation of discharging the accumulated liquid does not affect the rapid closing of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the ball valve of the utility model in the open state;

[0017] Figure 4 This is a schematic diagram of the structure of the ball valve of the utility model in the closed state;

[0018] Figure 5 This is a schematic diagram of the structure of the liquid discharge component of the utility model.

[0019] Figure numerals: 1. valve body; 101. channel one; 102. chamber; 2. valve ball; 201. channel two; 3. rotating assembly; 31. fixed sleeve; 32. fixed column; 33. rotating column; 34. arc-shaped slide groove; 35. handle; 4. sealing member; 41. spring sheet; 42. sealing ring; 5. drain assembly; 51. through groove; 52. drain pipe; 53. sealing pad; 54. liquid inlet one; 55. liquid inlet two; 56. sealing plate; 57. liquid collecting bottle. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] like Figure 1-5 As shown, the utility model proposes a ball valve with a function of preventing liquid accumulation, including a valve body 1, a valve ball 2, a rotating assembly 3, a sealing member 4 and a drainage assembly 5. Channels 101 for liquid circulation are respectively provided on both sides of the valve body 1; a chamber 102 is connected between the channels 101 on both sides. The valve ball 2 is arranged in the chamber 102; a channel 201 for liquid circulation is provided in the valve ball 2. The rotating assembly 3 is arranged at the top of the valve ball 2, driving the valve ball 2 to rotate to open / close the ball valve and move up and down at the same time. The sealing members 4 are arranged on both sides of the valve ball 2 to block the channel 101 and the chamber 102. The drainage assembly 5 is arranged at the lower end of the valve ball 2, and cooperates with the rotating assembly 3 to discharge the residual accumulated liquid in the chamber 102 and the channel 2 201.

[0022] Further explanation, the rotating assembly 3 includes a fixed sleeve 31 disposed at the top of the valve body 1; a fixed column 32 is connected to the fixed sleeve 31; a rotating column 33 is disposed at the top of the valve ball 2 and penetrates the valve body 1 and is slidably connected to the fixed sleeve 31; a handle 35 is connected to the upper end of the rotating column 33, and an arc-shaped slide groove 34 is opened at the side wall; the fixed column 32 is slidably connected to the arc-shaped slide groove 34. The rotating assembly 3 can drive the valve ball 2 to rotate upward or downward, thereby opening or closing the ball valve.

[0023] Further, the sealing member 4 includes a spring sheet 41 disposed on the inner wall of the channel 101; a sealing ring 42 that matches the shape of the outer surface of the valve ball 2 is connected to the side of the spring sheet 41 close to the valve ball 2. When the ball valve is closed, the remaining liquid in the channel 101 will squeeze the spring sheet 41, thereby pressing the sealing ring 42 on the outer surface of the valve ball 2, thereby blocking the channel 101 and the chamber 102, and preventing the liquid from flowing between the channels 101 on both sides through the chamber 102.

[0024] To further illustrate, a through groove 51 is provided at the lower end of the valve ball 2; the upper end of the through groove 51 is connected to the channel 2 201, and the lower end is connected to the chamber 102; the discharge component 5 includes a discharge pipe 52 arranged at the bottom end of the valve body 1; the upper half of the discharge pipe 52 slides through the through groove 51, and the top of the discharge pipe 52 is connected to a sealing pad 53 for sealing the top of the discharge pipe 52, and a liquid inlet 54 is provided at the upper end of the side wall; when the rotating component 3 drives the valve ball 2 to rotate and move upward, the groove wall of the channel 101 will block the liquid inlet 54; when the rotating component 3 drives the valve ball 2 to rotate and move downward, the liquid inlet 54 is exposed and connected to the channel 2 201. When the ball valve is closed, a small amount of liquid will remain in the second channel 201. If it is not discharged in time, the liquid may deteriorate and affect the quality of the liquid when it circulates next time. When the temperature is too low, the liquid may freeze and damage the valve ball. Therefore, the residual liquid in the second channel 201 can be discharged from the liquid inlet 1 54 to avoid the above-mentioned adverse situation.

[0025] Embodiment 2

[0026] like Figure 3-5 As shown, the utility model proposes a ball valve with anti-liquid accumulation function. Compared with the first embodiment, the present embodiment further includes: a second liquid inlet 55 is provided at the lower end of the side wall of the liquid discharge pipe 52; a blocking plate 56 is connected to the lower end of the valve ball 2; when the rotating assembly 3 drives the valve ball 2 to rotate upward, the blocking plate 56 blocks the second liquid inlet 55; when the rotating assembly 3 drives the valve ball 2 to rotate downward, the second liquid inlet 55 is exposed and communicated with the chamber 102. The residual liquid in the chamber 102 is discharged from the second liquid inlet 55 to prevent the liquid from accumulating in the chamber 102 and deteriorating or freezing.

[0027] Further, the lower end of the drain pipe 52 is detachably threadedly connected with a liquid collecting bottle 57, which is connected to the drain pipe 52. The discharged accumulated liquid can be collected to prevent the liquid from flowing around, and the liquid collecting bottle 57 can be removed to pour out the liquid after the liquid is full.

[0028] The working principle of the utility model is as follows: when closing the ball valve, the handle 35 is rotated to drive the arc-shaped slide groove 34 provided on the rotating column 33 to slide along the fixed column 32, thereby driving the valve ball 2 to rotate and move downward, so that the second channel 201 is not connected with the first channel 101. At this time, the spring sheet 41 will be squeezed by the liquid in the first channel 101, so that the sealing ring 42 is pressed against the outer surface of the valve ball 2, blocking the connection between the first channel 101 and the chamber 102. At the same time, the valve ball 2 rotates and moves downward, exposing the blocked liquid inlet 1 54 and the second liquid inlet 55, so that the residual liquid in the second channel 201 is discharged along the liquid inlet 1 54, and the residual liquid in the chamber 102 is discharged along the liquid inlet 2 55, and is collected in the liquid collecting bottle 57. The accumulated liquid is discharged in time to prevent the liquid from being stored in the second channel 201 and the chamber 102 for a long time, which may cause the liquid to deteriorate due to long-term storage, thereby affecting the quality of the liquid to be circulated next time, and may also cause the liquid to freeze when the temperature is too low, thereby freezing the valve ball. In addition, the accumulated liquid can be discharged while closing the ball valve without any unnecessary steps, which can ensure that the operation of discharging the accumulated liquid does not affect the rapid closing of the ball valve.

[0029] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A ball valve with anti-liquid accumulation function, characterized in that: include A valve body (1); channels (101) for liquid circulation are respectively provided on both sides of the valve body (1); a chamber (102) is connected between the channels (101) on both sides; A valve ball (2) is arranged in the chamber (102); a second channel (201) for liquid circulation is provided in the valve ball (2); A rotating assembly (3) is arranged at the top of the valve ball (2) and drives the valve ball (2) to rotate to open / close the ball valve and move up and down at the same time; Sealing members (4) are arranged on both sides of the valve ball (2) to block the first channel (101) and the chamber (102); And a liquid discharge component (5) is arranged at the lower end of the valve ball (2) and cooperates with the rotating component (3) to discharge the residual accumulated liquid in the chamber (102) and the second channel (201).

2. A ball valve with anti-liquid accumulation function according to claim 1, characterized in that: The rotating assembly (3) comprises a fixed sleeve (31) arranged at the top end of the valve body (1); a fixed column (32) is connected to the fixed sleeve (31); a rotating column (33) is arranged at the top end of the valve ball (2), which passes through the valve body (1) and is slidably connected to the fixed sleeve (31); a handle (35) is connected to the upper end of the rotating column (33), and an arc-shaped sliding groove (34) is opened on the side wall; the fixed column (32) is slidably connected to the arc-shaped sliding groove (34).

3. A ball valve with anti-liquid accumulation function according to claim 1, characterized in that: The sealing member (4) comprises a spring sheet (41) arranged on the inner wall of the first channel (101); a sealing ring (42) which is in conformity with the outer surface of the valve ball (2) is connected to the side of the spring sheet (41) close to the valve ball (2).

4. A ball valve with anti-liquid accumulation function according to claim 2, characterized in that: A through groove (51) is provided at the lower end of the valve ball (2); the upper end of the through groove (51) is communicated with the second channel (201), and the lower end is communicated with the chamber (102); the liquid discharge component (5) comprises a liquid discharge pipe (52) arranged at the bottom end of the valve body (1); the upper half of the liquid discharge pipe (52) slides through the through groove (51), the top end of the liquid discharge pipe (52) is connected to a sealing pad (53) for sealing the top end of the liquid discharge pipe (52), and a liquid inlet port 1 (54) is provided at the upper end of the side wall; when the rotating component (3) drives the valve ball (2) to rotate upward, the groove wall of the first channel (101) will block the liquid inlet port 1 (54); when the rotating component (3) drives the valve ball (2) to rotate downward, the liquid inlet port 1 (54) is exposed and communicated with the second channel (201).

5. A ball valve with anti-liquid accumulation function according to claim 4, characterized in that: A second liquid inlet (55) is provided at the lower end of the side wall of the liquid discharge pipe (52); a sealing plate (56) is connected to the lower end of the valve ball (2); when the rotating assembly (3) drives the valve ball (2) to rotate upward, the sealing plate (56) blocks the second liquid inlet (55); when the rotating assembly (3) drives the valve ball (2) to rotate downward, the second liquid inlet (55) is exposed and communicates with the chamber (102).

6. A ball valve with anti-liquid accumulation function according to claim 5, characterized in that: The lower end of the liquid discharge pipe (52) is detachably threadedly connected to a liquid collecting bottle (57); the liquid collecting bottle (57) is in communication with the liquid discharge pipe (52).

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