CN108443564B - Water stop valve - Google Patents
Water stop valve Download PDFInfo
- Publication number
- CN108443564B CN108443564B CN201710052815.8A CN201710052815A CN108443564B CN 108443564 B CN108443564 B CN 108443564B CN 201710052815 A CN201710052815 A CN 201710052815A CN 108443564 B CN108443564 B CN 108443564B
- Authority
- CN
- China
- Prior art keywords
- water
- back pressure
- valve
- rod
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
- F16K31/28—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with two ore more floats actuating one valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Abstract
The invention discloses a water stop valve, wherein a water inlet channel and a water outlet channel are formed in a valve body, a water sealing surface is arranged between the water inlet channel and the water outlet channel, a cavity is formed in the valve body above the water sealing surface, and a mounting hole is formed in the valve body above the cavity; the middle part of the valve rod is vertically movably arranged in the mounting hole, the upper part of the valve rod extends out of the mounting hole and is connected with the driving mechanism, the driving mechanism drives the valve rod to vertically move, a back pressure hole is formed in the water shutoff plug, the lower part of the valve rod vertically moves to be inserted into the back pressure hole of the water shutoff plug, a water passing gap exists between the water shutoff plug and the cavity, a back pressure cavity is formed above the water shutoff plug, a sealing end face matched with the back pressure hole is formed on the valve rod, the valve rod moves upwards, the back pressure hole is opened by the sealing end face, the water inlet channel and the water outlet channel are communicated with each other for water inlet, the valve rod moves downwards together with the water shutoff plug to downwards move, the back pressure hole is blocked by the sealing end face, water flows into the back pressure cavity through the water gap, and the water pressure enables the water shutoff plug to seal the water shutoff surface. The invention can stop the water inlet valve from entering water in time.
Description
Technical Field
The invention relates to the technical field of water inlet valves, in particular to a water stop valve.
Background
In the prior art, the water intaking valve generally includes inlet tube, top cap, back pressure pad, swing arm, float bowl and stagnant water tank, and the lower extreme of inlet tube is installed on the delivery pipe of water tank, and the top cap is installed in the upper end of inlet tube, sets up back pressure hole on the top cap, and the middle section pivot of swing arm is established on the top cap, and the one end of swing arm is just to back pressure hole to install back pressure pad, the other end of swing arm is connected with the regulation pole of float bowl, and the float bowl is installed in stagnant water tank, and stagnant water tank installs on the inlet tube, is equipped with the sealing member of assurance water tightness between each component.
When the water-stopping tank is used, when the water level of the water-stopping tank is lowered, the floating barrel is lowered under the action of gravity, the swing arm is driven to deflect, the back pressure pad opens the back pressure hole, and water flows through the water inlet pipe, the top cover and the back pressure hole from the water supply pipe to enter the water tank, so that water inflow is realized. When the water level of the water stopping tank rises, the floating barrel rises under the action of buoyancy to drive the swing arm to deflect, so that the back pressure pad closes the back pressure hole again, the water stopping pad generates back pressure to expand, the water inlet is blocked, and water inflow is stopped.
Or the water inlet valve comprises a valve body, a valve cover, a water stopping pad, a first crank arm, a second crank arm, a control rod, a float bucket and a water stopping tank; the valve cover is arranged in the valve body and forms a water inlet cavity with the valve body, a water stop surface with a water inlet hole is formed in the water inlet cavity, the water inlet end of the water inlet cavity is communicated with the water inlet channel, and the water outlet end of the water inlet cavity is communicated with the water outlet channel; a water stop pad is arranged on the valve cover and is positioned on the water stop surface, water passing holes are formed in the water stop pad, and a back pressure cavity is formed between the water stop pad and the valve cover; a back pressure hole is formed on the valve cover, and the back pressure hole is communicated with the back pressure cavity and the outside; the second crank arm is pivoted on the valve cover through a second rotating shaft perpendicular to the valve cover, the second rotating shaft divides the second crank arm into a long arm and a short arm, the end part of the long arm is a free end, the end part of the fixed end of the first crank arm is pivoted on the valve cover through a first rotating shaft perpendicular to the valve cover, the free end of the first crank arm spans over the back pressure hole and is in sliding connection with the short arm of the second crank arm, and the first crank arm is provided with a back pressure pad opposite to the back pressure hole; the free end of the long arm is connected with a control rod arranged on a floating barrel, the floating barrel is arranged in a water stopping tank, and the water stopping tank is arranged on the valve body.
When the water level of the water stopping tank drops, the floating barrel drops under the action of gravity, the control rod is driven to drop, the second crank arm is driven to swing downwards, the first crank arm is driven to be far away from the back pressure Kong Baidong, the back pressure pad opens the back pressure hole, and water enters the water tank through the water inlet channel of the valve body, so that water inlet is realized. When the water level of the water stopping tank rises, the floating barrel rises under the action of buoyancy to drive the control rod to descend and drive the second crank arm to swing upwards, so that the first crank arm is driven to approach the back pressure Kong Baidong, the back pressure pad is enabled to close the back pressure hole again, the water stopping pad generates back pressure to deform and seal the water inlet hole on the water stopping surface, and water stopping is achieved.
The water inlet valve is provided with a water leakage hole at the bottom of the water stopping tank, and after the water level of the water discharged by the water stopping tank is reduced, water in the water stopping tank enters the water tank through the water leakage hole, so that the floating barrel loses buoyancy and is reduced under the action of gravity, the swing arm is driven to deflect, and the back pressure hole is opened, thereby realizing water inlet. However, the water tank is easy to fail and can not be closed after being used for a period of time, if the drain valve leaks, the water inlet valve continuously feeds water at the moment, and the water tank continuously leaks water, so that water resource waste is caused.
Disclosure of Invention
The invention aims to provide a water stop valve which can stop water from entering a water inlet valve in time and has longer service life.
To achieve the above object, the solution of the present invention is:
a water stop valve comprises a valve body, a valve rod, a water stop plug and a driving mechanism; a water inlet channel and a water outlet channel are formed in the valve body, a water sealing surface is arranged between the water inlet channel and the water outlet channel, and the water sealing surface is communicated with the water inlet channel and the water outlet channel; a cavity is formed in the valve body above the water sealing surface, and a mounting hole is formed in the valve body above the cavity; the middle part of the valve rod moves up and down and is hermetically installed in the installation hole, the upper part of the valve rod extends out of the installation hole and is connected with the driving mechanism, the driving mechanism drives the valve rod to move up and down, a back pressure hole is formed in the water blocking plug, the lower part of the valve rod moves up and down to be inserted into the back pressure hole of the water blocking plug, a water passing gap exists between the water blocking plug and the cavity, a back pressure cavity is formed in the water blocking plug, the water passing gap is communicated with the water inlet channel and the back pressure cavity, the back pressure cavity is communicated with the back pressure hole, the back pressure hole is communicated with the water outlet channel, a sealing end face matched with the back pressure hole is formed on the valve rod, the valve rod moves up, the back pressure hole is opened by the sealing end face, the water inlet channel and the water outlet channel are communicated with each other, the valve rod moves down with the water blocking plug, the back pressure hole is blocked by the water blocking plug, water flow enters the back pressure cavity through the water passing gap, and the water blocking plug further blocks the water blocking surface, and stops water.
Further, the lower part of the valve rod forms a necking section, and a back pressure hole of the water blocking plug is sleeved on the necking section of the valve rod.
Further, the length of the neck section is greater than the length of the back pressure hole.
Further, the sealing end face is a wedge face, and the upper end of the back pressure hole forms a sealing inclined face matched with the wedge face.
Further, a circle of raised ribs are formed on the sealing surface.
Further, the middle part of the valve rod is sleeved with a sealing piston, and the sealing piston is in sealing fit with the mounting hole of the valve body.
Further, the water blocking plug comprises an injection molding piece and a rubber piece, a containing cavity is formed in the injection molding piece, and the rubber piece is embedded and installed in the containing cavity of the injection molding piece.
Further, the driving mechanism comprises a swing rod, a compression spring, a connecting rod and a limiting piece; the middle section of the swing rod is pivoted on the valve body, one end of the swing rod is connected with a valve rod, and the valve rod moves up and down along with the swing of the swing rod; the other end of the swing rod is connected with one end of the connecting rod, one end of the compression spring is arranged in the valve body and abuts against the valve body, and the other end of the compression spring abuts against one end of the connecting rod of the swing rod to provide power for swing of the swing rod; the limiting piece is movably arranged on the valve body, the limiting piece limits the connecting rod to move, the limiting piece is pushed downwards to drive the limiting piece to release the limiting on the connecting rod, and the compression spring drives the swing rod to move downwards to drive the valve rod and the water blocking plug to move downwards.
Further, the limiting piece is movably installed in the valve body up and down, a spring is installed between the limiting piece and the valve body, and the limiting piece is pushed down to shift the limiting piece downwards to release the limit of the connecting rod.
Further, the valve body is provided with a mounting seat, a containing cavity is formed between the mounting seat and the valve body, the limiting piece is arranged in the containing cavity, a yielding hole is formed in the mounting seat, the middle part of the limiting piece is a limiting part, the lower part of the limiting piece is inserted into the yielding hole, and the diameter of the limiting part of the limiting piece is larger than that of the yielding hole; one end of the spring is abutted against the mounting seat, and the other end is abutted against the limiting part of the limiting piece.
Further, the upper end of the limiting piece is provided with a wedge-shaped part, the connecting rod is correspondingly provided with a slot, and the wedge-shaped part of the limiting piece is inserted into the slot of the connecting rod to limit the movement of the connecting rod.
Further, the swing rod is connected with the connecting rod by means of a buckle clamping groove structure.
Further, a clamping block is arranged on the swing rod, a clamping groove is arranged on the connecting rod, and the clamping block of the swing rod is clamped into the clamping groove of the connecting rod so that the swing rod is connected with the connecting rod.
Further, the connecting rod is radially connected with the swing rod.
After the scheme is adopted, when the water inlet valve leaks, the valve rod moves upwards, the back pressure hole is opened on the sealing end surface, and the water inlet channel and the water outlet channel are communicated with each other for water inlet; the valve rod moves downwards together with the water blocking plug, the sealing end face seals the back pressure hole, the water blocking plug seals the water blocking surface, water flows into the back pressure cavity through the water gap, the water pressure enables the water blocking plug to further seal the water blocking surface to stop water, and water inlet of the water inlet valve can be stopped in time.
Meanwhile, the water blocking surface is blocked by the water blocking plug, water flows into the back pressure cavity through the water gap, the water pressure enables the water blocking plug to further block the water blocking surface to stop water, the water blocking plug can be reused for a plurality of times, and the service life of the back pressure pad is longer than that of a back pressure pad in the prior art.
Drawings
FIG. 1 is an exploded perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the water inlet state of the present invention;
FIG. 3 is a schematic view of the structure of the water stop state of the present invention;
FIG. 4 is a cross-sectional view of the water intake state of the present invention;
FIG. 4a is an enlarged view of a portion of FIG. 4;
FIG. 5 is a sectional view showing a water stopping state of the present invention;
FIG. 5a is an enlarged view of a portion of FIG. 5;
FIG. 6 is a cross-sectional view of the magnetic attraction element of the invention in a separated state;
FIG. 6a is an enlarged view of a portion of FIG. 6;
FIG. 7 is a cross-sectional view showing the attracted state of the magnetic attraction member of the invention;
FIG. 8 is a schematic view of the internal structure of the present invention;
fig. 9 is a schematic view of the structure of the water leakage state of the present invention;
fig. 10 is a schematic view of the structure of the water tank of the present invention;
FIG. 11 is a cross-sectional view of the water tank of the present invention;
FIG. 12 is a schematic view of the assembly of the lever and float bowl of the present invention;
FIG. 13 is a schematic view of the lever and float bowl of the present invention;
fig. 14 is a sectional view of the lever and float bowl assembly of the present invention.
Description of the reference numerals
Inlet channel 11 of valve body 1
Sealing surface 13 ribs 131
Mounting hole 15 of cavity 14
Back pressure chamber 16 mounting seat 17
Relief hole 171 valve rod 2
Sealing end face 22 of sealing piston 21
Necking segment 23 water plug 3
Sealing slope 311 of back pressure hole 31
Injection molding 32 rubber 33
Driving mechanism 4 pendulum rod 41
Clamping block 411 compresses spring 42
Connecting rod 43 clamping groove 431
First magnetic attraction element 441 of limiting piece 44
Inlet 511 of outer tank 51
Leak-proof water tank 53 of inner water tank 52
Outer float 61 of water channel 531
Ball head 611 inner float barrel 62
Plug 621 ball head 622
Second magnetic attraction element 631 of leak-proof float barrel 63
Bar 7 slot 71
And a slot 72.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 14, a water stop valve according to the present invention includes a valve body 1, a valve rod 2, a water blocking plug 3 and a driving mechanism 4.
The valve body is internally provided with a water inlet channel 11 and a water outlet channel 12, a water sealing surface 13 is arranged between the water inlet channel 11 and the water outlet channel 12, and the water sealing surface 13 is communicated with the water inlet channel 11 and the water outlet channel 12. A cavity 14 is formed in the valve body 1 above the water blocking surface 13, and a mounting hole 15 is formed in the valve body 1 above the cavity 14.
The middle part of the valve rod 2 moves up and down and is arranged in the mounting hole 15 in a sealing way, a sealing piston 21 can be sleeved at the middle part of the valve rod 2, and the sealing piston 21 is in sealing fit with the mounting hole 15 of the valve body 1. The upper part of the valve rod 2 extends out of the mounting hole 15 to be connected with the driving mechanism 4, and the driving mechanism 4 drives the valve rod 2 to move up and down. The back pressure hole 31 is formed in the water plug 3, the lower part of the valve rod 2 moves up and down to be inserted into the back pressure hole 31 of the water plug 3, and a gap is reserved between the lower part of the valve rod 2 and the side wall of the back pressure hole 31.
The water shutoff plug 3 is arranged in the cavity 14, a water gap exists between the water shutoff plug 3 and the cavity 14, the back pressure cavity 16 is formed above the water shutoff plug 3, the water gap is communicated with the water inlet channel 11 and the back pressure cavity 16, the back pressure cavity 16 is communicated with the back pressure hole 31, the back pressure hole 31 is communicated with the water outlet channel 12, the valve rod 2 is provided with a sealing end face 22 matched with the back pressure hole 31, the valve rod 2 moves upwards, the sealing end face 22 opens the back pressure hole 31, the water inlet channel 11 and the water outlet channel 12 are communicated with water inlet, the valve rod 2 moves downwards together with the water shutoff plug 3, the sealing end face 22 seals the back pressure hole 31, the water shutoff plug 3 seals the water shutoff surface 13, water flows into the back pressure cavity 16 through the water gap, and the water pressure enables the water shutoff plug 3 to further seal the water shutoff surface 13 to form back pressure to stop water.
In order to ensure that the water blocking plug 3 and the water blocking surface 13 are well sealed, a circle of raised ribs 131 are formed on the water blocking surface 13. In this embodiment, the lower part of the valve rod 2 is provided with a necking section 23, and the back pressure hole 31 of the water shutoff plug 3 is sleeved on the necking section 23 of the valve rod 2. The length of the neck section 23 is preferably greater than the length of the back pressure hole 31. The sealing end surface 22 is a wedge surface, and the upper end of the back pressure hole 31 forms a sealing inclined surface 311 matched with the wedge surface, so that the sealing performance is better. The water blocking plug 3 may be integrally formed, in this embodiment, as shown in fig. 1, the water blocking plug 3 is composed of an injection molding member 32 and a rubber member 33, a receiving cavity is formed in the injection molding member 32, and the rubber member 33 is embedded in the receiving cavity of the injection molding member 32.
The driving mechanism 4 comprises a swing rod 41, a compression spring 42, a connecting rod 43 and a limiting piece 44; the middle section of the swing rod 41 is pivoted on the valve body 1, one end of the swing rod 41 is connected with the valve rod 2, and the valve rod 2 moves up and down along with the swing of the swing rod 41. The other end of the swing rod 2 is connected with one end of a connecting rod 43, one end of a compression spring 42 is arranged in the valve body 1 and abuts against the valve body 1, and the other end of the compression spring 42 abuts against one end of the connecting rod 43 of the swing rod 41 to provide power for swing of the swing rod 2.
The limiting piece 44 is movably arranged on the valve body 1, the limiting piece 44 limits the connecting rod 43 to move, the limiting piece 44 is pushed down to drive the limiting piece 44 to release the limitation on the connecting rod 43, and the compression spring 42 drives the swing rod 41 to move downwards to drive the valve rod 2 and the water shutoff plug 3 to move downwards.
In this embodiment, the limiting member 44 is movably installed in the valve body 1 up and down, a spring (not labeled in the figure) is installed between the limiting member 44 and the valve body 1, and the limiting member 44 is pushed down to move downward to release the limitation of the connecting rod 43.
The method comprises the following steps: the valve body 1 is provided with a mounting seat 17, a containing cavity is formed between the mounting seat 17 and the valve body 1, a limiting piece 44 is arranged in the containing cavity, a yielding hole 171 is formed in the mounting seat 17, the middle part of the limiting piece 44 is a limiting part, the lower part of the limiting piece 44 is inserted into the yielding hole 171, and the diameter of the limiting part of the limiting piece 44 is larger than that of the yielding hole 171; one end of the spring abuts against the mounting seat 17, and the other end abuts against the limiting portion of the limiting member 44.
The upper end of the limiting piece 44 is provided with a wedge-shaped part, the connecting rod 43 is correspondingly provided with a slot, and the wedge-shaped part of the limiting piece 44 is inserted into the slot of the connecting rod 43 to limit the movement of the connecting rod 43. The swing link 41 is connected with the connecting rod 43 by means of a snap-in slot structure. Preferably, the swing link 41 is provided with a clamping block 411, and the connecting rod 43 is provided with a clamping groove 431, and the clamping block 411 of the swing link 41 is clamped into the clamping groove 431 of the connecting rod 43 to connect the swing link 41 with the connecting rod 43. In this embodiment, the link 43 is radially connected to the swing link 41.
When the water inlet valve leaks, the pressing and stirring limiting piece 44 drives the limiting piece 44 to release the limit of the connecting rod 43, the compression spring 42 drives the swing rod 41 to move downwards, the linkage valve rod 2 and the water blocking plug 3 move downwards, the sealing end face 22 seals the back pressure hole 31, the water blocking plug 3 seals the water blocking surface 13, water flows into the back pressure cavity 16 through the water gap, the water pressure enables the water blocking plug 3 to further seal the water blocking surface 13 to form back pressure so as to stop water, and when the water tank leaks, the water inlet valve is stopped in time, and water resources are saved.
The driving mechanism 4 can also be of the existing structure, for example, the valve comprises a swing rod and a float, the middle section of the swing rod is pivoted on the valve body 1, one end of the swing rod is connected with the valve rod 2, the other end of the swing rod is connected with the float, and the swing rod swings along with the up-and-down movement of the float and the up-and-down movement of the valve rod 2.
The invention also comprises an outer water tank 51, an inner water tank 52, a leakage-proof water tank 53, an outer float 61, an inner float 62, a leakage-proof float 63 and a lever 7.
The outer water tank 51 is mounted on the valve body 1, the bottom of the outer water tank 51 is provided with a water inlet 511, as shown in fig. 10 and 11, the inner water tank 52 is provided in the outer water tank 51, the height of the inner water tank 52 is lower than that of the outer water tank 51, and water overflows from the outer water tank 51 to the inner water tank 52.
The lever 7 is pivoted on the valve body 1, one end of the lever 7 is provided with an outer floating barrel 61, the outer floating barrel 61 is arranged in the outer water tank 51, the other end of the lever 7 is provided with an inner floating barrel 62, the inner floating barrel 62 is arranged in the inner water tank 52, and the lower end of the inner floating barrel 62 is provided with a plug 621.
In this embodiment, as shown in fig. 12 to 14, cylindrical slots 71 are formed at two ends of the lever 7, a relief groove 72 is formed at the bottom of the slot 71, and balls 611 and 622 are connected to the outer float 61 and the inner float 62, respectively, and the balls 611 and 622 are clamped into the cylindrical slots 71 and are mounted at two ends of the lever 7, respectively.
The leakage-proof water tank 53 is installed on the valve body 1, the leakage-proof water tank 53 is communicated with the inner water tank 52 by means of the water passage 531, and the lever 7 swings to cause the plug 621 to seal the water passage 531 or to open the water passage 621. The anti-leakage floating barrel 63 is arranged in the anti-leakage water tank 53, the anti-leakage floating barrel 63 is connected with the limiting piece 44 in a linkage way, the limiting piece 44 is driven to release the limitation of the connecting rod 43 by rising of the anti-leakage floating barrel 63, the swing rod 41 is driven to move downwards by the compression spring 42, the valve rod 2 and the water shutoff plug 3 are driven to move downwards, the back pressure hole 31 is plugged by the sealing end face 22, the water shutoff plug 3 plugs the water shutoff surface 13, water flows into the back pressure cavity 16 through a water gap, and the water pressure enables the water shutoff plug 3 to further plug the water shutoff surface 13 to form back pressure to stop water.
The first magnetic attraction element 441 is installed in the limiting member 44, specifically: the first magnetic element 441 is installed at the lower part of the limiting piece 44, and the second magnetic element 631 which is mutually attracted with the first magnetic element 441 is installed at the upper end of the leak-proof float bowl 63; the anti-leakage floating barrel 63 rises to enable the second magnetic attraction element 631 to attract the first magnetic attraction element 441 to drive the limiting piece 44 to move downwards to release the limitation of the connecting rod 43.
When the water inlet valve normally feeds water, the water enters the outer water tank from a water inlet hole at the bottom of the outer water tank, the water level of the outer water tank rises to enable an outer floating barrel arranged in the outer water tank to rise, the lever is driven to swing to drive an inner floating barrel arranged in the inner water tank to descend in a linkage manner, and a plug arranged at the lower end of the inner floating barrel plugs a water channel which is connected with the inner water tank and communicated with the leakage-proof water tank; as the water level of the outer water tank continues to rise, water overflows into the inner water tank; at this time, the water in the inner water tank cannot enter the leakage-proof water tank, the leakage-proof floating barrel arranged in the leakage-proof water tank does not act (does not float up), the control valve opens the water inlet channel of the valve body, and the water inlet valve normally feeds water.
When water leaks, the water level of the outer water tank gradually drops, an outer floating barrel arranged in the outer water tank descends, and the lever is driven to swing to drive an inner floating barrel arranged in the inner water tank to ascend, so that a plug arranged at the lower end of the inner floating barrel opens a water passing channel which is connected with the inner water tank and the leak-proof water tank; the water of inner water tank gets into leak protection water tank, and the leak protection float bowl action (come-up) of arranging in the leak protection water tank, and leak protection float bowl rises and makes the second magnetism inhale the component and adsorb the first magnetism and inhale the component and drive the locating part and move down the restriction of release to the connecting rod, and compression spring drives the pendulum rod and move down, and interlock valve rod and water shutoff stopper move down, and the back pressure hole is sealed to the terminal surface shutoff, and the shutoff surface, rivers get into the backpressure chamber through the water gap, and the water pressure makes the shutoff further shutoff surface form back pressure and stagnant water.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. A water stop valve, characterized in that: comprises a valve body, a valve rod, a water blocking plug and a driving mechanism; a water inlet channel and a water outlet channel are formed in the valve body, a water sealing surface is arranged between the water inlet channel and the water outlet channel, and the water sealing surface is communicated with the water inlet channel and the water outlet channel; a cavity is formed in the valve body above the water sealing surface, and a mounting hole is formed in the valve body above the cavity; the middle part of the valve rod moves up and down and is hermetically installed in the installation hole, the sealing piston is sleeved at the middle part of the valve rod and is in sealing fit with the installation hole of the valve body, the upper part of the valve rod extends out of the installation hole and is connected with the driving mechanism, the driving mechanism drives the valve rod to move up and down, a back pressure hole is formed in the water blocking plug, the lower part of the valve rod moves up and down and is inserted into the back pressure hole of the water blocking plug, a water passing gap exists between the water blocking plug and the cavity, the water blocking plug forms a back pressure cavity, the water passing gap is communicated with the water inlet channel and the back pressure cavity, the back pressure cavity is communicated with the back pressure hole, the back pressure hole is communicated with the water outlet channel, a sealing end face matched with the back pressure hole is formed on the valve rod, the valve rod moves up, the back pressure hole is opened by the sealing end face, the water inlet channel and the water outlet channel are communicated with the water inlet, the valve rod moves down with the water blocking plug, the back pressure hole is blocked by the sealing end face, the water blocking plug blocks the water surface, and the water flow enters the back pressure cavity through the water gap to further block the water blocking surface; the driving mechanism comprises a swing rod, a compression spring, a connecting rod and a limiting piece; the middle section of the swing rod is pivoted on the valve body, one end of the swing rod is connected with a valve rod, and the valve rod moves up and down along with the swing of the swing rod; the other end of the swing rod is connected with one end of the connecting rod, the compression spring is arranged in the valve body, one end of the compression spring is propped against the valve body, and the other end of the compression spring is propped against the end of the swing rod connected with the connecting rod to provide power for swing of the swing rod; the limiting piece is movably arranged on the valve body, the limiting piece limits the connecting rod to move, the limiting piece is pushed downwards to drive the limiting piece to release the limiting on the connecting rod, and the compression spring drives the swing rod to move downwards to drive the valve rod and the water blocking plug to move downwards.
2. A water stop valve as claimed in claim 1, wherein: the lower part of the valve rod forms a necking section, and a back pressure hole of the water blocking plug is sleeved on the necking section of the valve rod.
3. A water stop valve as claimed in claim 1, wherein: the sealing end face is a wedge-shaped face, and the upper end of the back pressure hole forms a sealing inclined face matched with the wedge-shaped face.
4. A water stop valve as claimed in claim 1, wherein: the limiting piece is movably installed in the valve body up and down, a spring is installed between the limiting piece and the valve body, and the limiting piece is pushed down to shift downwards to release the limit of the connecting rod.
5. A water stop valve as defined in claim 4, wherein: the valve body is provided with a mounting seat, a containing cavity is formed between the mounting seat and the valve body, a limiting piece is arranged in the containing cavity, a yielding hole is formed in the mounting seat, the middle part of the limiting piece is a limiting part, the lower part of the limiting piece is inserted into the yielding hole, and the diameter of the limiting part of the limiting piece is larger than that of the yielding hole; one end of the spring is abutted against the mounting seat, and the other end is abutted against the limiting part of the limiting piece.
6. A water stop valve as claimed in claim 1, wherein: the upper end of the limiting piece is provided with a wedge-shaped part, the connecting rod is correspondingly provided with a slot, and the wedge-shaped part of the limiting piece is inserted into the slot of the connecting rod to limit the movement of the connecting rod.
7. A water stop valve as claimed in claim 1, wherein: the swing rod is connected with the connecting rod by means of a buckle clamping groove structure.
8. A water stop valve as defined in claim 7, wherein: the swing rod is provided with a clamping block, the connecting rod is provided with a clamping groove, and the clamping block of the swing rod is clamped into the clamping groove of the connecting rod to enable the swing rod to be connected with the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052815.8A CN108443564B (en) | 2017-01-24 | 2017-01-24 | Water stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052815.8A CN108443564B (en) | 2017-01-24 | 2017-01-24 | Water stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108443564A CN108443564A (en) | 2018-08-24 |
| CN108443564B true CN108443564B (en) | 2023-09-26 |
Family
ID=63190500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052815.8A Active CN108443564B (en) | 2017-01-24 | 2017-01-24 | Water stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443564B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020237654A1 (en) * | 2019-05-31 | 2020-12-03 | 厦门立业卫浴工业有限公司 | Anti-siphon toilet water tank water inlet valve |
| CN110117978A (en) * | 2019-05-31 | 2019-08-13 | 厦门立业卫浴工业有限公司 | A kind of toilet water tank water inlet valve |
| CN110106948A (en) * | 2019-05-31 | 2019-08-09 | 厦门立业卫浴工业有限公司 | A kind of anti-siphonic closet tank intake valve of water |
| WO2020237656A1 (en) * | 2019-05-31 | 2020-12-03 | 厦门立业卫浴工业有限公司 | Water inlet valve for closestool water tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937690Y (en) * | 2006-04-16 | 2007-08-22 | 中山市贝斯特卫浴工业有限公司 | Water intake valve with protection cover |
| WO2009141518A2 (en) * | 2008-05-05 | 2009-11-26 | Hubert Nicolas Magar | Device for detecting leaks and cutting off the water supply to the cistern of a toilet |
| CN205841783U (en) * | 2016-07-18 | 2016-12-28 | 开平市朗盛卫浴有限公司 | A kind of pressing type spool |
| CN206522514U (en) * | 2017-01-24 | 2017-09-26 | 厦门立业卫浴工业有限公司 | A kind of water check valve |
-
2017
- 2017-01-24 CN CN201710052815.8A patent/CN108443564B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937690Y (en) * | 2006-04-16 | 2007-08-22 | 中山市贝斯特卫浴工业有限公司 | Water intake valve with protection cover |
| WO2009141518A2 (en) * | 2008-05-05 | 2009-11-26 | Hubert Nicolas Magar | Device for detecting leaks and cutting off the water supply to the cistern of a toilet |
| CN205841783U (en) * | 2016-07-18 | 2016-12-28 | 开平市朗盛卫浴有限公司 | A kind of pressing type spool |
| CN206522514U (en) * | 2017-01-24 | 2017-09-26 | 厦门立业卫浴工业有限公司 | A kind of water check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108443564A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108443564B (en) | Water stop valve | |
| CN209975657U (en) | Integrated intelligent toilet without water tank and with vacuum breaker electromagnetic valve flushing device | |
| CN110345284B (en) | Check valve | |
| KR20220008297A (en) | all plastic latex pump | |
| CN108825803A (en) | It is discharged valve arrangement and the humidifier including it | |
| CN200989478Y (en) | Antileakage stop valve | |
| CN108825804B (en) | Water outlet valve structure and humidifier comprising same | |
| CN206522513U (en) | A kind of water intaking valve leakage-proof apparatus | |
| US10920406B2 (en) | Leak-proof device for water inlet valve | |
| CN108426086B (en) | Water leakage preventing device of water inlet valve | |
| CN203892634U (en) | Spherical check valve | |
| CN204805632U (en) | One -way valve | |
| CN206522514U (en) | A kind of water check valve | |
| CN208831763U (en) | It is discharged valve arrangement and the humidifier including it | |
| US10920903B2 (en) | Water stop valve | |
| CN201228808Y (en) | Ball-cock | |
| CN209196175U (en) | A kind of novel overflow device | |
| CN211779013U (en) | Large-diameter water control valve | |
| CN210688575U (en) | Upper water adding humidifier | |
| CN203420333U (en) | Dripping time control device | |
| CN216519870U (en) | Electromagnetic valve | |
| CN215172253U (en) | Stop valve with more stable performance | |
| CN210134493U (en) | Water inlet device with water guide structure | |
| CN211779304U (en) | Water level control valve | |
| CN106104002A (en) | Blow-out preventing lock valve assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |