Water tank floating ball valve with high and low liquid level control function

Abstract

The invention relates to a water tank floating ball valve with high and low liquid level control, which is composed of a floating ball, a control rod, a valve body and an elastic device, the floating ball is composed of a ball body, a guide rod, a pull-down device and a push-up device, the ball body is a closed geometry and provides buoyancy for the device, the guide rod slides in an upper guide ring and a lower guide ring, and the pull-down device is connected with the push-up device. The pull-down device makes contact with the upper guide ring after the floating ball descends to the set height, the floating ball continues to descend to drive the control rod to move downwards, the push-up device makes contact with the lower guide ring after the floating ball ascends to the set height, and the floating ball continues to ascend to drive the control rod to move upwards. The control rod is composed of a control rod body, a fulcrum, an upper guide ring and a lower guide ring, the inner diameter of the upper guide ring is larger than the outer diameter of the guide rod, and the inner diameter of the lower guide ring is larger than the outer diameter of the guide rod.

Description

Technical Field

[0001] The invention relates to the field of valves, in particular to a water tank ball valve, and more particularly to a water tank float valve with high and low liquid level control. Background Art

[0002] In the prior art, the water level of the water tank is mostly controlled by a float valve. When this method is used, the valve will open when the water level drops slightly, and the valve will automatically close again shortly after opening, causing the valve to open and close frequently, greatly affecting the service life of the valve. To solve this problem, high and low liquid level control needs to be adopted. At present, the high and low liquid level control of the water tank is basically achieved by a combination of electrical and mechanical methods. This type of method has a complex structure, high manufacturing cost, and also requires electrical energy. How to use a simple mechanical structure to achieve high and low liquid level control of the water tank is a key technical problem to be solved by the present invention. Summary of the invention

[0003] To this end, the technical problem to be solved by the present invention is to provide a water tank float valve with high and low liquid level control. When the liquid level rises to a set float valve closing water level, the float valve closes, and when the liquid level drops to a set float valve opening water level, the float valve opens.

[0004] In order to solve the above technical problems, the present invention provides a water tank float valve with high and low liquid level control, which is composed of a float, a control rod, a valve body, and an elastic device. The float is composed of a sphere, a guide rod, a pull-down device, and an upward push device. The sphere is a closed geometric body that provides buoyancy for the device. The guide rod slides in an upper guide ring and a lower guide ring. When the float drops to a set height, the pull-down device contacts the upper guide ring, and the float continues to drop, driving the control rod to move downward. When the float rises to a set height, the push-up device contacts the lower guide ring, and the float continues to rise, driving the control rod to move upward. The control rod is composed of a control rod body, a fulcrum, an upper guide ring, and a lower guide ring. The inner diameter of the upper guide ring is larger than the outer diameter of the guide rod, and the inner diameter of the lower guide ring is larger than the outer diameter of the guide rod.

[0005] Furthermore, the valve body is composed of a valve core, a water inlet, and a water outlet, and the valve core is controlled by a joystick to determine the switch state of the valve.

[0006] Furthermore, the elastic device is made of elastic material, and when the valve is in a closed state, the elastic force ensures that the valve is reliably closed, and when the valve is in an open state, the elastic force ensures that the valve is reliably opened.

[0007] Furthermore, the upper guide ring and the lower guide ring work together to keep the guide rod in a vertical state.

[0008] Compared with the prior art, the effect of the present invention is positive and obvious. The float moves up and down with the liquid level, and the float valve will not be activated unless the set liquid level is reached. High and low liquid level control is achieved with a simple method and at a relatively low cost. The upper and lower liquid level heights can be conveniently changed by changing the positions of the pull-down device and the push-up device on the guide rod. The elastic device ensures that the float valve is reliably in an open or closed state. The present invention has the advantages of novel design, simple structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0010] Figure 1 The utility model discloses a water tank float valve with high and low liquid level control.

[0011] Figure 2 The utility model discloses a float ball principle diagram of a water tank float ball valve with high and low liquid level control according to the present invention.

[0012] In the figure: 1, valve core, 2, water inlet, 3, water outlet, 4, elastic material, 5, fulcrum, 6, operating rod body, 7, lower guide ring, 8, upper guide ring, 9, ball, 10, guide rod, 11, push-up device, 12, pull-down device. DETAILED DESCRIPTION

[0013] like Figure 1 , Figure 2 As shown, a water tank float valve with high and low liquid level control of the present invention is composed of a float, a control rod, a valve body, and an elastic device. The float is composed of a ball 9, a guide rod 10, a pull-down device 12, and a push-up device 11. The ball 9 is a closed geometric body that provides buoyancy for the device. The guide rod 10 slides in the upper guide ring 8 and the lower guide ring 7. The pull-down device 12 contacts the upper guide ring 8 when the float drops to a set height, and the float continues to drop and drives the control rod to move downward. The push-up device 11 contacts the lower guide ring 7 when the float rises to a set height, and the float continues to rise and drives the control rod to move upward. The control rod is composed of a control rod body 6, a fulcrum 5, an upper guide ring 8, and a lower guide ring 7. The inner diameter of the upper guide ring 8 is larger than the outer diameter of the guide rod 10, and the inner diameter of the lower guide ring 7 is larger than the outer diameter of the guide rod 10.

[0014] Furthermore, the valve body is composed of a valve core 1, a water inlet 2, and a water outlet 3. The valve core 1 is controlled by a joystick to determine the switch state of the valve.

[0015] Furthermore, the elastic device is made of elastic material 4, and when the valve is in a closed state, the elastic force ensures that the valve is reliably closed, and when the valve is in an open state, the elastic force ensures that the valve is reliably opened.

[0016] Furthermore, the upper guide ring 8 and the lower guide ring 7 work together to keep the guide rod 10 in a vertical state.

[0017] Before using the float valve of the present invention, the guide rod is first inserted into the upper and lower guide rings, and the positions of the pull-down device and the push-up device on the guide rod are determined according to the set water level requirement. When the water level in the water tank rises, the float moves upward. After reaching the set water level, the push-up device pushes the lower guide ring, so that the control rod rotates around the fulcrum, the valve is closed, and the elastic device generates an upward rotation torque, so that the float valve can be reliably closed. When the water level in the water tank drops, the float moves downward. After reaching the set water level, the pull-down device pulls the upper guide ring, so that the control rod rotates around the fulcrum, the valve is opened, and the elastic device generates a downward rotation torque, so that the float valve is fully opened.

[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that as long as the dual liquid level control of the float is adopted, other structural forms are also within the protection scope of the present invention. The sphere is a preferred method. As long as a geometrically enclosed space is adopted, other structural forms are also within the protection scope of the present invention.

Claims

1. A water tank float valve with high and low liquid level control, consisting of a float, a control rod, a valve body, and an elastic device, characterized in that: The float is composed of a sphere (9), a guide rod (10), a pull-down device (12), and an upward push device (11). The sphere (9) is a closed geometric body that provides buoyancy for the device. The guide rod (10) slides in an upper guide ring (8) and a lower guide ring (7). When the float descends to a set height, the pull-down device (12) contacts the upper guide ring (8). The float continues to descend and drives the control rod to move downward. When the float rises to a set height, the push-up device (11) contacts the lower guide ring (7). The float continues to rise and drives the control rod to move upward. The control rod is composed of a control rod body (6), a fulcrum (5), an upper guide ring (8), and a lower guide ring (7). The inner diameter of the upper guide ring (8) is larger than the outer diameter of the guide rod (10), and the inner diameter of the lower guide ring (7) is larger than the outer diameter of the guide rod (10). A water tank float valve with high and low liquid level control, comprising a float, a control rod, a valve body and an elastic device, characterized in that: the float comprises a sphere (9), a guide rod (10), a pull-down device (12) and an upward push device (11); the sphere (9) is a closed geometric body, providing buoyancy for the device; the guide rod (10) slides in an upper guide ring (8) and a lower guide ring (7); the pull-down device (12) contacts the upper guide ring (8) when the float drops to a set height, and the float continues to drop, driving the control rod to move downward; the upward push device (11) contacts the lower guide ring (7) when the float rises to a set height, and the float continues to rise, driving the control rod to move upward; the control rod comprises a control rod body (6), a fulcrum (5), an upper guide ring (8) and a lower guide ring (7); the inner diameter of the upper guide ring (8) is larger than the outer diameter of the guide rod (10); and the inner diameter of the lower guide ring (7) is larger than the outer diameter of the guide rod (10).

2. A water tank float valve with high and low liquid level control as claimed in claim 1, characterized in that: The valve body is composed of a valve core (1), a water inlet (2), and a water outlet (3); the valve core (1) is controlled by a joystick to determine the on / off state of the valve.

3. A water tank float valve with high and low liquid level control as claimed in claim 1, characterized in that: The elastic device is made of an elastic material (4) and ensures that the valve is reliably closed under the action of the elastic force when the valve is in a closed state, and ensures that the valve is reliably opened under the action of the elastic force when the valve is in an open state.

4. A water tank float valve with high and low liquid level control as claimed in claim 1, characterized in that: The upper guide ring (8) and the lower guide ring (7) work together to place the guide rod (10) in a vertical state.

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