CN210135290U - Floating ball valve and water tank - Google Patents

Abstract

The utility model provides a float valve and a water tank, relating to the technical field of valves and comprising a valve body, a first valve core and a first float ball; the bottom of the valve body is provided with a first liquid inlet, and the top of the valve body is provided with a first liquid outlet; the outer wall of the valve body is sleeved with a driving frame and an outer sleeve, and the outer sleeve is fixedly connected with the top of the valve body; the driving frame is positioned between the outer sleeve and the valve body, a first magnet is arranged in the first valve core, a second magnet capable of driving the first magnet to move along the axis direction of the valve body is arranged in the driving frame, and a hole for liquid flowing is formed between the first valve core and the valve body; a second liquid outlet is formed in the outer sleeve, and a first convex ring which can be in contact with the first valve core so as to seal the second liquid outlet is arranged in the outer sleeve; the first floating ball is connected with the driving frame and can drive the driving frame to move along the axial direction of the valve body. The technical effects of safety and stability are achieved.

Description

Floating ball valve and water tank

Technical Field

The utility model relates to the technical field of valves, particularly, relate to ball cock and water tank.

Background

Along with the improvement of living standard of people, the requirement of people on drinking water quality is continuously improved, and the prior bottled water drinking machine is gradually replaced by a water purifying device such as a water purifying machine or a wall-hung pipeline machine and the like; however, in the internal structure of the water purifier or the wall-mounted pipeline machine, the water tank, the water inlet control and the water level control are the key structures of the water purifier, and the structures of the water purifier on the existing market are generally as follows: an external water source is connected with a water inlet electromagnetic valve, the water outlet end of the electromagnetic valve is connected with a water storage tank, and an electronic floating ball is installed in the water storage tank to control the water level. Because the service life of the electromagnetic valve is limited, the machine performance is extremely unstable, and the potential safety hazard is serious.

Therefore, it is an important technical problem to be solved by those skilled in the art to provide a safe and stable float valve and water tank.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a floating ball valve and water tank to alleviate the technical problem that is unsafe unstable among the prior art.

The embodiment of the utility model provides a float valve, which comprises a valve body, a first valve core and a first float ball;

the bottom of the valve body is provided with a first liquid inlet, and the top of the valve body is provided with a first liquid outlet;

the outer wall of the valve body is sleeved with a driving frame and an outer sleeve, the driving frame is positioned between the outer sleeve and the valve body, and the outer sleeve is fixedly connected with the top of the valve body;

a first magnet is arranged in the first valve core, a second magnet capable of driving the first magnet to move along the axis direction of the valve body is arranged in the driving frame, and a hole for liquid flowing is formed between the first valve core and the valve body;

a second liquid outlet is formed in the outer sleeve, and a first convex ring which can be in contact with the first valve core so as to seal the second liquid outlet is arranged in the outer sleeve;

the first floating ball is connected with the driving frame, and the first floating ball can drive the driving frame to move along the axial direction of the valve body.

The embodiment of the present invention provides a first possible implementation manner, wherein the outer sleeve includes a fulcrum sleeve and an end cover;

the end cover is in threaded connection with the top of the valve body, the fulcrum sleeve is positioned below the end cover, the top of the fulcrum sleeve is abutted against the outer sleeve, the bottom of the fulcrum sleeve is abutted against the valve body, and a convex plate abutted against the fulcrum sleeve is arranged on the outer wall of the valve body;

the second liquid outlet is formed in the top of the end cover.

The embodiment of the present invention provides a second possible implementation manner, wherein the first floating ball is connected to the fulcrum sleeve through a lever;

the end, far away from the first floating ball, of the lever is provided with a first convex block, a groove matched with the first convex block is formed in the fulcrum sleeve, and the lever can rotate relative to the fulcrum sleeve by taking the axis of the first convex block as an axis.

The embodiment of the present invention provides a third possible implementation manner, wherein a second bump is further disposed on the lever, and the second bump is located between the first bump and the first floating ball;

the second lug can penetrate through the fulcrum sleeve to be connected with the driving frame, and a connecting seat matched with the second lug is arranged on the driving frame;

the fulcrum sleeve is provided with a long hole, and the length direction of the long hole is parallel to the axis of the valve body.

The embodiment of the present invention provides a fourth possible implementation manner, wherein the float valve further comprises a water sealing pipe;

the water sealing pipe is in a convex shape, one end of the water sealing pipe with the smaller diameter can be inserted into the valve body, and a sealing ring is arranged between the outer wall of the water sealing pipe and the inner wall of the valve body;

the second liquid inlet is formed in the end, with the smaller diameter, of the water sealing pipe, a second convex ring capable of being abutted to the first valve core is further arranged at the bottom of the water sealing pipe, and the axis of the second convex ring coincides with the axis of the second liquid inlet.

In a fifth possible implementation manner provided by the embodiment of the present invention, the end of the water sealing pipe with a larger diameter is located between the end cover and the valve body;

and a sealing ring is arranged between the outer wall of the water sealing pipe and the inner wall of the end cover.

In a sixth possible implementation manner provided by the embodiment of the present invention, a second valve element is disposed in the water sealing pipe, and a top of the second valve element protrudes out of the end cover;

and an annular groove for placing a clamp spring is formed in the outer wall of the top of the second valve core, and the clamp spring is abutted to the top surface of the second liquid discharge port.

The embodiment of the utility model provides a seventh possible embodiment, wherein, above-mentioned ball valve still includes the second floater, the second floater ball is established the end cover outside, just the second floater pass through the jump ring with the second valve core is connected, the second floater can drive the second valve core is followed the axial displacement of valve body.

The embodiment of the utility model provides an eighth possible implementation, wherein, above-mentioned second floater is cyclic annular, just the second floater with there is annular space between the end cover.

The embodiment of the utility model provides a water tank, which comprises a tank body and a floating ball valve;

the floating ball valve is positioned inside the box body.

Has the advantages that:

the utility model provides a float ball valve, which comprises a valve body, a first valve core and a first float ball; the bottom of the valve body is provided with a first liquid inlet, and the top of the valve body is provided with a first liquid outlet; the outer wall of the valve body is sleeved with a driving frame and an outer sleeve, the driving frame is positioned between the outer sleeve and the valve body, and the outer sleeve is fixedly connected with the top of the valve body; a first magnet is arranged in the first valve core, a second magnet capable of driving the first magnet to move along the axis direction of the valve body is arranged in the driving frame, and a hole for liquid flowing is formed between the first valve core and the valve body; a second liquid outlet is formed in the outer sleeve, and a first convex ring which can be in contact with the first valve core so as to seal the second liquid outlet is arranged in the outer sleeve; the first floating ball is connected with the driving frame, and the first floating ball can drive the driving frame to move along the axial direction of the valve body.

When the water-saving valve is used, one end of the floating ball valve, which is provided with the first liquid inlet, is inserted into a water inlet at the bottom of the water tank, then water from an external water source enters the valve body from the first liquid inlet, then the water flows to the first liquid discharge port through the first valve core and further flows to the second liquid discharge port of the outer sleeve, and then the water flows out of the second liquid discharge port of the outer sleeve, namely flows into the water tank; when the water level in the water tank rises, can drive first floater and rise, first floater rises this moment and can drive the drive frame through the lever and rise along valve body axis direction, second magnet in the drive frame can drive first magnet in the first valve core and rise, when the water level in the water tank reachs the assigned height, first valve core can with first bulge loop butt, thereby seal the second leakage fluid dram on the overcoat, make rivers in the valve body can't flow into the water tank through the second leakage fluid dram, avoid the water in the water tank to spill over, thereby guarantee the safety and the stability of intaking in the water tank.

The embodiment of the utility model provides a water tank, which comprises a tank body and a floating ball valve; the floating ball valve is positioned in the box body. The water tank has the above-mentioned advantages compared to the prior art, and will not be described herein again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a float valve provided in an embodiment of the present invention;

fig. 2 is a top view of a float valve provided in an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 5 is a schematic structural diagram of a valve body in a float valve provided in an embodiment of the present invention;

FIG. 6 is a cross-sectional view of C-C of FIG. 5;

fig. 7 is a schematic structural diagram of a first valve element in a float valve provided in an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an end cap in a float valve according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an end cap of a float valve according to another view angle provided by an embodiment of the present invention;

fig. 10 is a cross-sectional view of an end cap of a float valve according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a water sealing pipe in a float valve provided in an embodiment of the present invention;

FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;

fig. 13 is a schematic structural view of the float valve according to the embodiment of the present invention after being installed in the box body;

fig. 14 is a top view of the float valve according to the embodiment of the present invention after being installed in the box body;

fig. 15 is a cross-sectional view of E-E in fig. 14.

Icon:

100-a valve body; 101-a first liquid inlet; 102-a first drain port; 103-convex plate; 110-a drive frame; 111-a second magnet; 112-a connecting seat; 120-fulcrum sleeve; 121-grooves; 122-elongated holes; 130-an end cap; 131-a second drain port; 132-a first male ring;

200-a first valve spool; 201-a first magnet; 210-a lever; 211 — a first bump; 212-a second bump;

300-a first float ball; 400-a second floating ball;

500-sealing the water pipe; 510-a second liquid inlet; 520-a second convex ring;

600-a second valve spool; 610-a clamp spring;

700-a gasket; 800-box body.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.

Referring to fig. 1 to 4, 7, and 13 to 15, an embodiment of the present invention provides a float valve, including a valve body 100, a first valve core 200, and a first float 300; the bottom of the valve body 100 is provided with a first liquid inlet 101, and the top is provided with a first liquid outlet 102; the outer wall of the valve body 100 is sleeved with a driving frame 110 and an outer sleeve, and the outer sleeve is fixedly connected with the top of the valve body 100; the driving frame 110 is positioned between the outer sleeve and the valve body 100, a first magnet 201 is arranged in the first valve core 200, a second magnet 111 capable of driving the first magnet 201 to move along the axis direction of the valve body 100 is arranged in the driving frame 110, and a hole for liquid flowing is formed between the first valve core 200 and the valve body 100; a second liquid outlet 131 is formed in the outer sleeve, and a first convex ring 132 which can be in contact with the first valve core 200 so as to seal the second liquid outlet 131 is arranged in the outer sleeve; the first floating ball 300 is connected to the driving frame 110, and the first floating ball 300 can drive the driving frame 110 to move along the axial direction of the valve body 100.

Referring to fig. 3 and 15, when in use, one end of the float valve, which is provided with the first liquid inlet 101, is inserted into a water inlet at the bottom of the water tank, then water from an external water source enters the valve body 100 from the first liquid inlet 101, then flows to the first liquid outlet 102 through the first valve core 200, further flows to the second liquid outlet 131 of the outer sleeve, and then flows out from the second liquid outlet 131 of the outer sleeve, namely flows into the water tank; when the water level in the water tank rises, can drive first floater 300 and rise, first floater 300 rises this moment and can drive the drive frame 110 through lever 210 and rise along the 100 axis directions of valve body, second magnet 111 in the drive frame 110 can drive first magnet 201 in the first case 200 and rise, when the water level in the water tank reachs the assigned height, first case 200 can with first bulge loop 132 butt, thereby second leakage fluid dram 131 to the overcoat seals, make rivers in the valve body 100 can't flow in the water tank through second leakage fluid dram 131, avoid the water in the water tank to spill over, thereby guarantee the safety and the stability of intaking in the water tank.

Specifically, the floating ball valve is clamped with the water tank, and the joint is sealed through the sealing ring, so that water leakage is avoided.

In the prior art, the control of the water tank is determined by the electromagnetic valve and the mechanical floating ball together, when the water level in the water tank reaches a certain height, the mechanical floating ball triggers the electromagnetic valve, then the electromagnetic valve closes the water inlet channel, but when the water flow is turbulent, the mechanical floating ball is easy to mistakenly touch the electromagnetic valve by the excited water flow, so that the electromagnetic valve is closed when the water level of the water tank is lower; moreover, the mechanical floating ball is increased along with the service time and is easy to break down, so that the floating ball cannot trigger the electromagnetic valve, and water in the water tank overflows.

Referring to fig. 3, in the float valve provided in this embodiment, through the lever principle, the first float ball 300 (the buoyancy of the water on the first float ball 300 and the height of the water driving the first float ball 300 to rise) drives the driving rack 110 to move upward, so as to drive the first valve element 200 to rise; when the water level reaches a predetermined position, the first valve element 200 is brought into contact with the first collar 132 of the outer sleeve by the first float ball 300, thereby sealing the second drain port 131. The opening and closing of the second liquid outlet 131 are controlled through the lever 210 principle, even if the flow rate of water is too high, the first floating ball 300 is impacted to the maximum height, so that the second liquid outlet 131 is sealed by the first valve core 200, after the water flow in the water tank is stable, the height of the first floating ball 300 is reduced, the first valve core 200 is reduced along with the reduction, and the second liquid outlet 131 is unblocked.

Referring to fig. 5 and 6, when the first floating ball 300 moves upward, the lever 210 can drive the driving rack 110 to move upward. When no water is in the water tank, the bottom of the first floating ball 300 is in contact with the bottom of the water tank, and at the moment, the first liquid outlet 102 and the second liquid outlet 131 are both smooth, so that water from an external water source can enter the valve body 100 through the first liquid inlet 101, then is discharged into the shell through the first liquid outlet 102, and then is discharged into the tank body 800 through the second liquid outlet 131.

Referring to fig. 4, 8-10, in an alternative version of this embodiment, the outer sleeve includes a fulcrum sleeve 120 and an end cap 130; the end cover 130 is in threaded connection with the top of the valve body 100, the fulcrum sleeve 120 is positioned below the end cover 130, the top of the fulcrum sleeve 120 is abutted with the outer sleeve, the bottom of the fulcrum sleeve 120 is abutted with the valve body 100, and the outer wall of the valve body 100 is provided with a convex plate 103 abutted with the fulcrum sleeve 120; a second drain port 131 is opened at the top of the end cap 130.

Specifically, the outer sleeve is divided into a fulcrum sleeve 120 and an end cover 130, the fulcrum sleeve 120 is fixed through the threaded connection of the end cover 130 and the valve body 100, and through the arrangement, the assembly of the floating ball valve by workers is facilitated.

During assembly, the fulcrum sleeve 120 is sleeved outside the valve body 100, the driving frame 110 is sleeved inside the valve body 100, the driving frame 110 is located between the fulcrum sleeve 120 and the valve body 100 at the moment, the first valve element 200 is inserted into the valve body 100, the end cover 130 is sleeved at last, the end cover 130 is connected with the valve body 100 through threads, and the fulcrum sleeve 120 is fixed through the end cover 130.

In an alternative of the present embodiment, the first floating ball 300 is connected with the fulcrum sleeve 120 through the lever 210; one end of the lever 210, which is far away from the first floating ball 300, is provided with a first protruding block 211, the fulcrum sleeve 120 is provided with a groove 121 matched with the first protruding block 211, and the lever 210 can rotate relative to the fulcrum sleeve 120 by taking the axis of the first protruding block 211 as an axis.

In an alternative of this embodiment, a second protrusion 212 is further disposed on the lever 210, and the second protrusion 212 is located between the first protrusion 211 and the first floating ball 300; the second bump 212 can penetrate through the fulcrum sleeve 120 to be connected with the driving frame 110, and the driving frame 110 is provided with a connecting seat 112 matched with the second bump 212; the fulcrum sleeve 120 is provided with a long hole 122, and the extending direction of the long hole 122 is parallel to the axis of the valve body 100.

Specifically, a first bump 211 and a second bump 212 are arranged on the lever 210, one end of the lever 210 is connected with the first floating ball 300, and the second bump 212 is located between the first bump 211 and the first floating ball 300; when the lever 210 is mounted on the band valve body 100, the first protrusion 211 is fitted into the groove 121 of the fulcrum sleeve 120, and the second protrusion 212 is fitted into the coupling seat 112 of the driving bracket 110. When the first floating ball 300 rises along the axial direction of the valve body 100 under the action of water flow, the lever 210 can rotate by using the joint of the first protrusion 211 and the groove 121 as a rotating shaft, so that the second protrusion 212 can rise along with the lever 210, and further the driving rack 110 connected with the second protrusion 212 is driven to rise, and meanwhile, the driving rack 110 drives the first valve element 200 to move upwards. When the water level in the tank 800 reaches a predetermined height, the first float ball 300 rises to abut against the first valve element 200 and the first protruding ring 132, so that water cannot flow into the tank 800 from the valve body 100, and the water in the tank 800 is prevented from overflowing the water tank due to the high water level.

The dimension of the connecting base 112 on the driving rack 110 along the radial direction of the valve body 100 is larger than the dimension of the second projection 212 along the radial direction of the valve body 100, so that the second projection 212 can drive the connecting base 112 to move upwards along the axis of the valve body 100 when the lever 210 rotates.

The fulcrum sleeve 120 is provided with a long hole 122, and the size of the long hole 122 along the radial direction of the valve body 100 is larger than the size of the second protrusion 212 along the radial direction of the valve body 100, so that the second protrusion 212 can drive the connecting seat 112 to move upwards along the axis of the valve body 100 when the lever 210 rotates.

Referring to fig. 3-4 and 11-12, in an alternative embodiment, the float valve further includes a water seal pipe 500; the water sealing pipe 500 is in a shape of a Chinese character 'tu', one end of the water sealing pipe 500 with a thinner diameter can be inserted into the valve body 100, and a sealing ring is arranged between the outer wall of the water sealing pipe 500 and the inner wall of the valve body 100; the second liquid inlet 510 is opened at the bottom of the water sealing pipe 500, a second convex ring 520 capable of abutting against the first valve core 200 is further arranged at the bottom of the water sealing pipe 500, and the axis of the second convex ring 520 coincides with the axis of the second liquid inlet 510.

In the alternative of this embodiment, the end with the larger diameter of the water seal pipe 500 is located between the outer sleeve and the valve body 100; a sealing ring is arranged between the outer wall of the water sealing pipe 500 and the inner wall of the outer sleeve.

In the alternative of this embodiment, a second valve core 600 is disposed in the water sealing pipe 500, and the top of the second valve core 600 is connected to the second liquid outlet 131 through a snap spring 610; the outer wall of the second valve core 600 is provided with a ring groove for placing the clamp spring 610, and the clamp spring 610 is abutted to the top surface of the second liquid discharge port 131.

In the optional scheme of this embodiment, the float valve further includes a second float ball 400, the second float ball is disposed outside the housing, and the second float ball 400 is connected to the second valve core 600 through a snap spring 610, and the second float ball 400 can drive the second valve core 600 to move along the axis of the valve body 100.

In an alternative embodiment, the second float ball 400 is annular, and an annular space exists between the second float ball 400 and the outer sleeve.

In order to improve the water stopping capability of the float valve, a water sealing pipe 500 is inserted into the first liquid outlet 102 of the valve body 100, a part of the water sealing pipe 500 is positioned inside the valve body 100, the other part of the water sealing pipe 500 is positioned outside the valve body 100, and the part of the water sealing pipe 500 positioned inside the valve body 100 is hermetically connected with the valve body 100 through a sealing ring, so that water flow inside the valve body 100 cannot flow out from an annulus between the valve body 100 and the water sealing pipe 500. And the part of the water sealing pipe 500 positioned outside the valve body 100 is connected with the end cover 130 in a sealing way, so that the water flow inside the valve body 100 can not flow out from the annular space between the end cover 130 and the water sealing pipe 500. With this arrangement, the water in the valve body 100 can only flow into the water sealing pipe 500 and then is discharged from the second liquid discharge port 131 formed in the end cap 130.

And, be provided with second valve core 600 in the water-sealed pipe 500 to the top of second valve core 600 passes second leakage fluid dram 131 and is connected with second floater 400, and second floater 400 cover is fixed and is set up at second valve core 600 top, and has annular space between second floater 400 and the end cover 130, guarantees that rivers can flow to the box 800 through second leakage fluid dram 131. When the water flow in the box body 800 rises, when the first valve core 200 driven by the first floating ball 300 cannot seal the water sealing pipe 500, the water flow can continuously flow into the water sealing pipe 500, so that the water flow flows into the box body 800 through the second liquid discharge port 131, the second floating ball 400 can be influenced by the water level to rise at the moment, then the second floating ball 400 can drive the second valve core 600 in the water sealing pipe 500 to rise, when the water level reaches the designated height, the second valve core 600 can be abutted against the first convex ring 132 in the end cover 130 (outer cover) under the drive of the second floating ball 400, so that the second liquid discharge port 131 is sealed.

It should be noted that, when the water sealing pipe 500 is disposed in the valve body 100, the first valve core 200 abuts against the second convex ring 520 at the bottom of the water sealing pipe 500, so as to seal the water sealing pipe 500, and the water flow in the valve body 100 cannot enter the water sealing pipe 500.

Wherein, an annular space is arranged between the second valve core 600 and the second liquid discharge port 131, so that water flows out from the second liquid discharge port 131.

In an alternative of the present embodiment, the first spool 200 and the second spool 600 are each provided with a packing 700. When the water sealing pipe 500 is not arranged in the valve body 100, the first valve core 200 and the first convex ring 132 together perform the sealing operation on the valve body 100 through the sealing gasket 700. When the water sealing pipe 500 is arranged in the valve body 100, the first valve core 200 and the second convex ring 520 better complete the sealing operation of the water sealing pipe 500 through the sealing gasket 700, and the second valve core 600 completes the sealing operation of the second liquid outlet 131 through the sealing gasket 700.

As shown in fig. 13-15, an embodiment of the present invention provides a water tank, including a tank body 800 and a float valve; the float valve is located inside the box 800.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A float valve, comprising: the valve comprises a valve body (100), a first valve core (200) and a first floating ball (300);

a first liquid inlet (101) is formed in the bottom of the valve body (100), and a first liquid outlet (102) is formed in the top of the valve body;

the outer wall of the valve body (100) is sleeved with a driving frame (110) and an outer sleeve, the driving frame (110) is positioned between the outer sleeve and the valve body (100), and the outer sleeve is fixedly connected with the top of the valve body (100);

a first magnet (201) is arranged in the first valve core (200), a second magnet (111) capable of driving the first magnet (201) to move along the axis direction of the valve body (100) is arranged in the driving frame (110), and a hole for liquid flowing is formed between the first valve core (200) and the valve body (100);

a second liquid outlet (131) is formed in the outer sleeve, and a first convex ring (132) which can be in contact with the first valve core (200) so as to seal the second liquid outlet (131) is arranged in the outer sleeve;

the first floating ball (300) is connected with the driving frame (110), and the first floating ball (300) can drive the driving frame (110) to move along the axial direction of the valve body (100).

2. The float valve of claim 1 wherein said outer sleeve includes a fulcrum sleeve (120) and an end cap (130);

the end cover (130) is in threaded connection with the top of the valve body (100), the fulcrum sleeve (120) is located below the end cover (130), the top of the fulcrum sleeve (120) is abutted to the outer sleeve, a convex plate (103) is arranged on the outer wall of the valve body (100), and the bottom of the fulcrum sleeve (120) is abutted to the convex plate (103);

the second liquid outlet (131) is formed in the top of the end cover (130).

3. The float valve of claim 2, wherein said first float (300) is connected to said fulcrum sleeve (120) by a lever (210);

one end, away from the first floating ball (300), of the lever (210) is provided with a first protruding block (211), a groove (121) matched with the first protruding block (211) is formed in the fulcrum sleeve (120), and the lever (210) can rotate relative to the fulcrum sleeve (120) by taking the center line of the groove (121) as a rotating shaft.

4. The float valve according to claim 3, wherein a second cam (212) is further provided on the lever (210), the second cam (212) being located between the first cam (211) and the first float (300);

the second bump (212) can penetrate through the fulcrum sleeve (120) to be connected with the driving frame (110), and a connecting seat (112) matched with the second bump (212) is arranged on the driving frame (110);

the fulcrum sleeve (120) is provided with a long hole (122), and the length direction of the long hole (122) is parallel to the axis of the valve body (100).

5. The float valve of claim 2 further comprising a water shut-off line (500);

the water sealing pipe (500) is in a convex shape, one end of the water sealing pipe (500) with the smaller diameter can be inserted into the valve body (100), and a sealing ring is arranged between the outer wall of the water sealing pipe (500) and the inner wall of the valve body (100);

the second liquid inlet (510) is formed in the end, with the smaller diameter, of the water sealing pipe (500), a second convex ring (520) capable of being abutted to the first valve core (200) is further arranged at the bottom of the water sealing pipe (500), and the axis of the second convex ring (520) is overlapped with the axis of the second liquid inlet (510).

6. The float valve of claim 5, wherein the larger diameter end of the water-seal pipe (500) is located between the end cap (130) and the valve body (100);

and a sealing ring is arranged between the outer wall of the water sealing pipe (500) and the inner wall of the end cover (130).

7. The float valve according to claim 5, characterized in that a second valve core (600) is arranged in the water sealing pipe (500), and the top of the second valve core (600) protrudes out of the end cover (130); second liquid outlet

The outer wall at the top of the second valve core (600) is provided with a ring groove for placing a clamp spring (610), and the clamp spring (610) is abutted to the top surface of the second liquid discharge port (131).

8. The float valve according to claim 7, further comprising a second float ball (400), wherein the second float ball (400) is sleeved outside the end cap (130), and the second float ball (400) is connected to the second valve core (600) through a snap spring (610), and the second float ball (400) can drive the second valve core (600) to move along the axial direction of the valve body (100).

9. The float valve of claim 8, wherein the second float ball (400) is annular and an annular space exists between the second float ball (400) and the end cap (130).

10. A cistern comprising a body (800) and a float valve as claimed in any one of claims 1 to 9;

the float valve is positioned inside the box body (800).

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