Floating ball valve capable of adjusting water level

Abstract

The utility model discloses a floating ball valve capable of adjusting the water level, and relates to a pipeline valve which is applied to a water tank and used for assisting water inlet in the water tank, and the floating ball valve structurally comprises a valve, a pull rod, a floating ball and the like, and is mainly characterized in that a valve rod for opening and closing the valve is connected with one end of the pull rod; a length-adjustable pull rope is arranged between the other end of the pull rod and the floating ball to form flexible connection; therefore, the floating ball can drive the pull rod and control the valve rod to open and close the valve at the set highest water level and the set lowest water level through the pull rope with the adjustable length, particularly, the pull rope is in flexible connection, the valve cannot be opened and closed once the floating ball does not reach the highest water level or the lowest water level, and frequent opening and closing times of the valve are reduced. Impact damage to a pipe network system caused by a water hammer effect generated by frequent starting of the water pump is reduced, the service life of the water level floating ball valve is prolonged, and use energy consumption is reduced; meanwhile, the water level in the water tank can be flexibly adjusted to a proper highest water level and a proper lowest water level for water discharging and water feeding, and the use reliability is also ensured.

Description

Technical Field

[0001] The utility model relates to a float valve, in particular to a water level adjustable float valve. Background Art

[0002] At present, a water level float valve is usually provided in a water tank used for water storage. Its function is to automatically supply water to the water tank after the water in the water tank is used up. The structure of the water level float valve mainly includes a valve, a float, and a connecting rod connecting the valve and the float respectively. As the float rises or falls in the water tank, the connecting rod controls the opening and closing of the valve. Specifically, when the water level in the water tank reaches the highest water level, the float controls the valve to close through the connecting rod, and the system consumes the water stored in the water tank; when the water level in the water tank reaches the lowest water level, the float controls the valve to open through the connecting rod, and the water pump at the front end of the linkage system will start to supply water to the water tank until the water level in the water tank reaches the highest water level again and the valve is closed. This cycle can realize the normal operation of the water level float valve. However, since the connecting rod is a hard-connected component with an irrelevant length, the float cannot be used to set the maximum and minimum water levels in the water tank. Therefore, in actual use, it is found that the float will frequently open and close the valve before reaching the maximum or minimum water level. Excessive opening and closing of the valve will increase the impact damage to the pipe network system caused by the water hammer effect caused by frequent starting of the water pump, and affect the service life of the water level float valve and increase energy consumption. At the same time, if the water inlet in the water tank does not reach the appropriate maximum water level, the float will automatically close the valve, or if the water outlet in the water tank does not reach the appropriate minimum water level, the float will automatically open the valve, which also greatly affects the user's reliability. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an adjustable water level float valve which can adjust the water level, has low energy consumption, long service life and is reliable in use.

[0004] The technical problem of the utility model is achieved through the following technical solutions:

[0005] An adjustable water level float valve comprises a valve and a float. The valve is provided with a valve stem, which is connected to one end of a pull rod. A pull rope with adjustable length is provided between the other end of the pull rod and the float to form a soft connection. The float drives the pull rod and controls the valve stem to open and close the valve at the set maximum and minimum water levels through the pull rope with adjustable length.

[0006] The other end of the pull rod is provided with a threaded adjustment nut, and the end of the pull rope can be moved through the adjustment hole on the adjustment nut, and the adjustment nut is tightened or loosened relative to the other end of the pull rod, thereby locking or unlocking the connection between the end of the pull rope and the other end of the pull rod.

[0007] The adjusting nut is provided with an internal threaded hole, and a threaded connection is formed with the external threaded shaft at the other end of the pull rod through the internal threaded hole. The adjusting hole is arranged on the side of the adjusting nut and passes through it horizontally. The adjusting nut is tightened relative to the other end of the pull rod to press the end of the pull rope passing through the adjusting hole to form a lock. The adjusting nut is loosened relative to the other end of the pull rod to disengage from the end of the pull rope passing through the adjusting hole to form an unlocking.

[0008] A clamping nut is provided between the end of the pull rope and the float to form a fixed connection.

[0009] The valve includes a valve body, a ceramic valve core and a valve stem arranged in the valve body. One end of the valve stem is connected to the ceramic valve core, and the other end of the valve stem extends out of the valve body and connects to one end of the pull rod. The pull rod is driven to rotate and drives the valve stem to rotate synchronously, thereby controlling the ceramic valve core to open and close the valve.

[0010] The ceramic valve core includes a static ceramic valve disc and a dynamic ceramic valve disc. The static ceramic valve disc is sealed and fixed in the valve body. The dynamic ceramic valve disc is installed on the valve stem and is driven by the valve stem to rotate relative to the static ceramic valve disc to form opening and closing.

[0011] The valve body is provided with a T-shaped water channel formed by connecting a horizontal water channel and a vertical water channel. One end of the horizontal water channel is provided with a sealed valve core body. The ceramic valve core and valve stem are both installed in the valve core body, and the valve stem rotates around the axis of the valve core body to form a seal.

[0012] A sealing gasket is provided between the static ceramic valve disc and the inner shoulder of the valve body.

[0013] Compared with the prior art, the present invention mainly connects the valve stem used for opening and closing the valve with one end of the pull rod, and a pull rope with adjustable length is provided between the other end of the pull rod and the float to form a soft connection; in this way, the float can drive the pull rod and control the valve stem to open and close the valve at the set maximum water level and minimum water level through the pull rope with adjustable length. In particular, the pull rope is a soft connection, and the valve cannot be opened and closed once the float does not reach the maximum water level or the minimum water level, thereby reducing the frequent opening and closing of the valve, reducing the impact damage to the pipe network system caused by the water hammer effect caused by frequent starting of the water pump, extending the service life of the water level float valve and reducing energy consumption; at the same time, the water level in the water tank can be flexibly adjusted to the appropriate maximum water level and minimum water level for draining and filling water, which also ensures the reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 This is a cross-sectional view of the pull rope passing through the adjusting nut.

[0016] Figure 3A cross-sectional view of the adjusting nut.

[0017] Figure 4 A cross-sectional view of the valve.

[0018] Figure 5 This is a state diagram of the highest water level and the lowest water level when the utility model is installed in a water tank. DETAILED DESCRIPTION

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown, 1. valve, 11. main body, 12. ceramic valve core, 121. static ceramic valve disc, 122. dynamic ceramic valve disc, 13. valve stem, 14. sealing gasket, 15. valve core body, 16. screw, 2. float, 3. pull rod, 4. adjusting nut, 41. internal threaded hole, 42. adjusting hole, 5. pull rope, 6. clamping nut.

[0021] An adjustable water level float valve, such as Figure 1 As shown, it relates to a pipeline valve used in a water tank to assist water inflow into the water tank. Its structure mainly consists of a valve 1, a pull rod 3, a pull rope 5 and a float 2.

[0022] Among them, the valve 1 includes a valve body 11, which is provided with a T-shaped water channel formed by connecting a horizontal water channel and a vertical water channel, and the left port of the horizontal water channel is set as the water inlet end, the right port is set as the installation end, and the lower port of the vertical water channel is set as the water outlet end. The right port of the horizontal water channel, that is, the installation end, is provided with a valve core body 15 that is threaded and sealed by an O-ring. The interior of the valve core body is axially penetrated and a ceramic valve core 12 and a valve stem 13 are installed.

[0023] The ceramic valve core 12 includes an inner static ceramic valve disc 121 and an outer dynamic ceramic valve disc 122. The static ceramic valve disc 121 is sealed and fixed in the valve body 11, that is, a sealing gasket 14 is provided between the static ceramic valve disc 121 and the inner shoulder of the valve body. The dynamic ceramic valve disc 122 is installed on the valve stem 13, and the valve stem can rotate around the axis of the valve core body 15 to form a sealed state. The dynamic ceramic valve disc 122 is driven by the valve stem 13 to rotate relative to the static ceramic valve disc 121 to form an opening and closing.

[0024] In this way, one end of the valve stem 13 is connected to the ceramic valve core 12, and the other end of the valve stem extends out of the installation end of the valve body 11 and is connected to one end of the pull rod 3. Figure 1 As shown, the two are fixed by screws 16, and a length-adjustable pull rope 5 is provided between the other end of the pull rod 3 and the float 2 to form a flexible connection.

[0025] The connection structure between the pull rope 5 and the other end of the pull rod 3 is as follows: Figure 2As shown, a threaded adjustment nut 4 is provided at the other end of the pull rod 3, that is, an internal threaded hole 41 is provided on the adjusting nut, and a threaded connection is formed with the external threaded shaft at the other end of the pull rod through the internal threaded hole. A transverse adjustment hole 42 is provided on the side of the adjusting nut 4, and the end of the pull rope 5 can move through the adjustment hole 42.

[0026] Therefore, by tightening the operating adjusting nut 4 relative to the other end of the pull rod 3, the end of the pull rope 5 passing through the adjusting hole 42 can be compressed, thereby locking the connection between the end of the pull rope and the other end of the pull rod; by loosening the operating adjusting nut 4 relative to the other end of the pull rod 3, it can be disengaged from the end of the pull rope 5 passing through the adjusting hole 42, thereby unlocking the connection between the end of the pull rope and the other end of the pull rod. At this time, the distance between the float 2 and the other end of the pull rod 3 can be adjusted by pulling the length of the pull rope end passing through the adjusting hole 42, that is, the float 2 can set the appropriate maximum water level and minimum water level through the length-adjustable pull rope 5, and the end of the pull rope away from the pull rod 3 is fixedly connected to the float 2 by the clamping nut 6.

[0027] The float of the utility model is as follows Figure 5 As shown, the pull rope 5 with adjustable length can be used to drive the pull rod 3 to rotate according to the set maximum water level and minimum water level, and then synchronously drive the valve stem 13 to rotate to open and close the valve 1. In particular, the pull rope 5 is a soft connection. Once the float 2 has not reached the maximum water level or the minimum water level, the valve cannot be opened and closed, which reduces the frequent opening and closing times of the valve 1, reduces the impact damage to the pipe network system caused by the water hammer effect caused by frequent starting of the water pump, extends the service life of the water level float valve and reduces energy consumption; at the same time, the water level in the water tank can be flexibly adjusted to the appropriate maximum water level and minimum water level for draining and filling water, which also ensures the reliability of use.

[0028] The above description is only a specific embodiment of the present invention. Those skilled in the art should understand that any structural design equivalent to this embodiment should be included in the protection scope of the present invention.

Claims

1. An adjustable water level float valve, comprising a valve (1) and a float (2), wherein the valve (1) is provided with a valve stem (13), characterized in that The valve stem (13) is connected to one end of the pull rod (3), and a length-adjustable pull rope (5) is provided between the other end of the pull rod (3) and the float (2) to form a soft connection, and the float (2) drives the pull rod (3) and controls the valve stem (13) to open and close the valve at the set maximum water level and minimum water level through the length-adjustable pull rope (5); the other end of the pull rod (3) is provided with a threaded adjustment nut (4), the end of the pull rope (5) is movable through the adjustment hole (42) on the adjustment nut (4), and the adjustment nut (4) is tightened or loosened relative to the other end of the pull rod (3), thereby locking or unlocking the connection between the end of the pull rope (5) and the other end of the pull rod (3).

2. The adjustable water level float valve according to claim 1, characterized in that The adjusting nut (4) is provided with an internal threaded hole (41), and is threadedly connected to the external threaded shaft at the other end of the pull rod (3) through the internal threaded hole. The adjusting hole (42) is provided on the side of the adjusting nut (4) and passes through it transversely. The adjusting nut (4) is tightened relative to the other end of the pull rod (3) to press the end of the pull rope (5) passing through the adjusting hole (42) to form a lock. The adjusting nut (4) is loosened relative to the other end of the pull rod (3) to disengage from the end of the pull rope (5) passing through the adjusting hole (42) to form an unlocking.

3. The adjustable water level float valve according to claim 1, characterized in that A clamping nut (6) is provided between the end of the pull rope (5) and the float (2) to form a fixed connection.

4. The adjustable water level float valve according to claim 1, characterized in that The valve (1) comprises a valve body (11), a ceramic valve core (12) and a valve stem (13) arranged in the valve body, one end of the valve stem is connected to the ceramic valve core (12), and the other end of the valve stem extends out of the valve body and is connected to one end of a pull rod (3), and the pull rod is driven to rotate and drive the valve stem (13) to rotate synchronously, thereby controlling the ceramic valve core (12) to open and close the valve (1).

5. The adjustable water level float valve according to claim 4, characterized in that The ceramic valve core (12) comprises a static ceramic valve disc (121) and a dynamic ceramic valve disc (122). The static ceramic valve disc (121) is sealed and fixed in the valve body (11), and the dynamic ceramic valve disc (122) is installed on the valve stem (13) and is driven by the valve stem to rotate relative to the static ceramic valve disc (121) to form opening and closing.

6. The adjustable water level float valve according to claim 4, characterized in that The valve body (11) is provided with a T-shaped water channel formed by connecting a horizontal water channel and a vertical water channel. A valve core body (15) is provided at one end of the horizontal water channel. The ceramic valve core (12) and the valve stem (13) are both installed in the valve core body (15), and the valve stem (13) rotates around the axis of the valve core body (15) to form a seal.

7. The adjustable water level float valve according to claim 5, characterized in that A sealing gasket (14) is provided between the static ceramic valve disc (121) and the inner shoulder of the valve body (11).

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