CN220249016U - 0-degree closed two-in and two-out valve core - Google Patents

Abstract

The utility model relates to a 0-degree closed two-in and two-out valve core, which comprises a valve shell, a valve handle, a rotor, a driving plate, a movable valve plate and a fixed valve plate, wherein the driving plate is restrained at the bottom of the rotor and can rotate and slide relative to the rotor, the movable valve plate is fixed at the bottom surface of the driving plate, and the fixed valve plate is fixed at the bottom in the valve shell; the method is characterized in that: the driving plate is provided with a limiting part, two circumferentially spaced inner bosses are arranged at the inner top of the valve casing, a limiting groove is formed between the two inner bosses, the movable valve plate can slide along with the driving plate in the closing water inlet direction only when the limiting part is aligned with the limiting groove, and the side part of the rotor is exposed out of the limiting part and is inserted into the limiting groove; when the driving plate rotates to a state that the limiting part and the limiting groove are dislocated, the limiting part is blocked by the inner boss, so that the movable valve plate cannot slide along with the driving plate in the closing water inlet direction. Only when the limiting part is aligned with the limiting groove, the movable valve plate can slide along with the driving plate in the closing water inlet direction, the limiting part is staggered with the limiting groove, and the limiting part is restrained by the inner boss so that the movable valve plate cannot slide along with the driving plate in the closing water inlet direction.

Description

0-degree closed two-in and two-out valve core

Technical Field

The utility model relates to a valve core of a faucet, in particular to a two-in and two-out valve core which has the functions of mixing water (controlling the opening and closing of a water inlet waterway and adjusting water temperature) and separating water (distributing a water outlet channel of water flow) and is closed at 0 degree.

Background

The valve core of the water tap can be divided into two main types according to functions, one type is a water mixing valve core which is used for controlling the opening and closing of a water inlet waterway of cold water and hot water and adjusting the water temperature, and the other types of water mixing valve cores can also adjust the water quantity. The other type is a water diversion valve core, which can control the water flow direction and a water outlet channel for distributing water flow. Because of the limitation of the functions of the two types of valve cores, in the bathroom industry, the two types of valve cores are often combined to realize the functions of water diversion and water temperature and flow regulation, so that not only is one valve core needed to be used, but also the two types of valve cores are simultaneously arranged in the faucet main body, so that the faucet main body has a complex structure, a huge volume, copper material waste and high processing difficulty. Such a faucet structure using two valve cores is disclosed in the chinese patent No. ZL201320478247.5, a shower faucet.

The water diversion valve core is divided into two water diversion ways (a shower head and a tap) and three water diversion ways (a shower head, a top shower and a tap) due to different spraying systems. There are also faucet valve cores which combine two valve core functions into one in the market at present, as in China patent application No. ZL201210101026.6, a kind of such a ceramic valve core is disclosed in "water diversion, mixing water integrated type multi-functional ceramic valve core", including body and base, there are driving levers, ceramic moving sheets fixed on driving plate and ceramic stationary sheets fixed on base from top to bottom in order in the body, the upper end of the driving lever stretches out the top of the body, the middle part locates in support, and pin joint with support through the fulcrum fixed on support, the support underpart has driving plates, the end of the driving lever connects with driving plate and drives the driving plate to slide along support in the direction of stirring of the driving lever, there are first, second water inlets and first, second water outlets separated each other on the base, there are first, second, third, four through-flow passages corresponding to it on the ceramic stationary sheets; the top end of the ceramic moving plate is sealed, the middle part of the bottom end is inwards sunken to form a mixed flow cavity for communicating the water inlet and the water outlet, and the end face of the bottom end is attached to the top of the ceramic static plate to form a switching surface for changing the water inlet and outlet flow directions and flow.

The above patent can only realize the closing of the first water outlet and the second water outlet through the ceramic moving plate, or the selective passage of the first water outlet and the second water outlet, namely, only one water passage or no water passage exists in the first water outlet and the second water outlet. And the ceramic moving plate realizes the water diversion function through the selective conduction of the mixed flow cavity in the ceramic moving plate and the first water outlet and the second water outlet.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a reasonably compact 0-degree closed two-in and two-out valve core aiming at the current state of the art, the valve core can realize water mixing (controlling the opening and closing of a water inlet waterway and adjusting the water temperature) through the rotation of a valve handle, the swing of the valve handle can realize water diversion (distributing a water flow outlet channel), and the closing can only be realized when the valve handle is in the swing of 0-degree state.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a two-in two-out case that 0 degree was closed, includes valve casing, valve handle and installs rotor, driver plate, movable valve block and the fixed valve block in the valve casing, the driver plate restraint can rotate along with the rotor in the rotor bottom, and can slide relatively the rotor, the movable valve block is fixed in the bottom surface of driver plate, the fixed valve block is fixed in the bottom in the valve casing, the rotation of movable valve block is used for adjusting cold water, hot water mixing ratio, the slip of movable valve block is used for switching over different water outlet passage to and be used for closing the inflow; the method is characterized in that: the driving plate is provided with a limiting part, two circumferentially spaced inner bosses are arranged at the inner top of the valve casing, a limiting groove matched with the limiting part is formed between the two inner bosses, and the movable valve plate can slide along with the driving plate in the closing water inlet direction only when the limiting part is aligned with the limiting groove, and the side part of the rotor is exposed out of the limiting part and is inserted into the limiting groove; when the driving plate rotates to a state that the limiting part and the limiting groove are staggered, the limiting part is blocked by the inner boss, so that the movable valve plate cannot slide along with the driving plate in the closing water inlet direction.

As the concrete setting mode of the channel in the case, all be equipped with cold water passageway, hot water passageway, first play water passageway and the second play water passageway that the position corresponds on above-mentioned valve casing bottom and the fixed valve block, be equipped with the muddy water chamber in the valve block that moves, the rotation of moving the valve block can make mix the overlapping area of water chamber and cold water passageway and hot water passageway changes, the slip of moving the valve block can make mix the water chamber select with first play water passageway or second play water passageway intercommunication, the slip of moving the valve block can also decide and move the valve block shutoff whether cold water passageway and hot water passageway. Two water outlet channels are generally optimal, although more water outlet channels can be designed. The movable valve block blocks the cold water channel and the hot water channel, and at the moment, the first water outlet channel and the second water outlet channel are not provided with water, and the movable valve block is different from the traditional way of blocking the first water outlet channel and the second water outlet channel, so that the movable valve block is more beneficial to layout.

If the movable valve plate moves to the position of the second water outlet channel for water outlet, the area of the first water outlet channel for blocking is required to be larger, and in a limited layout space, the cross section of the first water outlet channel is required to be made small, so that the water outlet of the first water outlet channel is too small; or the covering surface of the movable valve plate is made large, which means that the valve core needs to be made large. Either way, it is defective.

To this current situation, further improve, be equipped with in the above-mentioned movable valve piece with mix the first water outlet and the second water outlet that mixes of water chamber intercommunication, first water outlet that mixes communicates with first water outlet channel all the time, the slip of movable valve piece can decide whether second water outlet and second water outlet channel communicate. The structure makes no matter which water outlet channel the movable valve plate moves to switch from, the first water outlet channel must have water flowing out, the purpose of switching the water outlet position is to switch the second water outlet channel to outlet water when the electromagnetic valve controlling the first water outlet channel to outlet water or not is damaged, in general, the electromagnetic valve is always in the closed position when damaged, at this moment, even if water enters the first water outlet channel, the first water outlet channel must be blocked when the second water outlet channel is out of water, so the water outlet area of the first water outlet channel can be made as large as possible under the condition of certain space, thereby ensuring that the water outlet amount is large.

Preferably, the movable valve plate is in a state of 0 degree middle position, and the water mixing cavity is communicated with the cold water channel and the first water outlet channel and is blocked with the hot water channel and the second water outlet channel; the movable valve plate slides from the middle position of 0 degrees to one side, the bottom surface of the movable valve plate can simultaneously block the cold water channel and the hot water channel, the cold water channel and the hot water channel are blocked with the water mixing cavity, and the limiting part is inserted into the limiting groove; the movable valve plate slides from the middle position of 0 degrees to the other side, the water mixing cavity is communicated with the cold water channel and the second water outlet channel and is blocked with the hot water channel, and the water mixing cavity is communicated with or blocked from the first water outlet channel. The valve core has three clear and definite working positions due to the arrangement, and the structure ensures that the valve core is in a full cold water state in the middle position state when the valve core is at the 0-degree position, namely cold water is discharged from the closing state to the opening state, so that scalding hands is avoided, and the use is safer.

Still further improve, the top surface of above-mentioned driver plate is equipped with the bellied guide table that makes progress, one side of guide table is located to spacing portion, the bottom of rotor be equipped with the guide groove of spacing portion matching, the guide table is arranged in the guide groove and can slide. The cooperation of guide table and guide groove ensures that the movable valve block slides along with the drive plate radial more steadily.

Further improvement, insert on the front and back wall of above-mentioned guide table and be equipped with the first post that the perisporium part revealed, insert on the front and back inner wall of guide groove and be equipped with the second post that the perisporium part revealed, first post needs to cross the second post, just can make the movable valve block follow the driver plate and get into to the opposite side position from one side position. The first column and the second column are partially dislocated, a certain force is required to enable the first column to pass through the second column, a certain hand feeling is achieved in the water channel outflow switching process by the structure, the first column enters the second column from one position, a certain force is required to drive the valve handle to achieve the purpose, and the operation hand feeling is good; in addition, the user is clearly instructed where the mode is switched.

As the preferable layout, the first water mixing outlet is arranged at the center of the bottom surface of the movable valve plate, the second water mixing outlet and the first water mixing outlet are separated by a blocking wall, and the blocking wall is positioned above the second water outlet channel to block the second water mixing outlet from being communicated with the second water outlet channel. The structure layout is favorable for the sliding and rotation of the movable valve plate to realize the position switching.

As an improvement, the driving plate is fixed at the top of the movable valve plate in a buckling manner, a first sealing piece is arranged between the driving plate and the movable valve plate, a concave cavity with an open top is arranged on the movable valve plate, and the bottom surface of the driving plate covers the open top of the concave cavity to form the water mixing cavity; the concave cavity with the top opening is arranged on the movable valve plate, so that the movable valve plate is more convenient to machine and shape, and the formation of the water mixing cavity is facilitated.

As a preferable layout, the first water outlet channel is positioned at the center, and the cold water channel, the hot water channel and the second water outlet channel are arranged around the periphery of the first water outlet channel; the structure layout is favorable for the sliding and rotation of the movable valve plate to realize the position switching. The middle part of valve handle is connected with the rotor through the round pin axle rotation, and the upper end of valve handle stretches out from the top of valve casing, and the lower extreme of valve handle inserts in the top cavity of driver plate. The structure enables the valve handle to not only drive the rotor, the driving plate and the movable valve plate to synchronously rotate, but also drive the driving plate and the movable valve plate to radially slide relative to the rotor and the fixed valve plate through the swing of the valve handle.

As an improvement, the side wall of the rotor is provided with a side-protruding limiting block, and the limiting block is positioned between the two inner protruding blocks so as to limit the rotation angle of the rotor. The structure limits the rotation angle of the rotor, and in one limit angle position, the limiting block is blocked and matched with one inner boss, and the cold water channel is completely communicated with the mixed water inlet; and at the other limit angle position, the limiting block is matched with the other inner boss, and the hot water channel is completely communicated with the mixed water inlet.

As an improvement, the valve casing is composed of an upper casing and a base in a clamping manner, the base forms the bottom of the valve casing, the fixed valve plates are clamped on the base, the two inner bosses are arranged on the periphery of the inner top wall of the casing, and a second sealing piece is arranged between the fixed valve plates and the base. The foregoing valve housing construction facilitates assembly of the components within the valve housing, which may also be a unitary member.

Compared with the prior art, the utility model has the advantages that: the setting of spacing portion and spacing groove for only under spacing portion and spacing groove alignment state, move the valve block and just can slide along with the driver plate toward closing the direction of intaking, spacing portion exposes the rotor lateral part and inserts spacing groove outward, and when the driver plate rotates to spacing portion and spacing groove dislocation state down, spacing portion is restrained by interior boss and makes and move the valve block and can not slide along with the driver plate toward closing the direction of intaking. That is, the valve core can be closed only at the 0 degree position (the handle arranged on the valve handle is at the position where the handle does not deflect downwards in numerical value), and the user can recognize the closing state.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a second embodiment of the present utility model;

FIG. 3 is a longitudinal perspective view (0 degree middle first water outlet channel water outlet state) of an embodiment of the present utility model;

FIG. 4 is a cross-sectional view (0 degree middle first outlet channel water outlet state) in a transverse perspective of an embodiment of the present utility model;

FIG. 5 is a cross-sectional view (a movable valve plate rotated by an angle) in a transverse perspective in accordance with an embodiment of the present utility model;

FIG. 6 is a longitudinal perspective view (0 degree inlet closed state) of an embodiment of the present utility model;

FIG. 7 is a transverse perspective view (0 degree inlet closed state) of an embodiment of the present utility model;

FIG. 8 is a longitudinal perspective view (0 degree middle second water outlet channel water outlet state) of an embodiment of the present utility model;

FIG. 9 is a transverse perspective cross-sectional view (0 degree middle second water outlet channel water outlet state) of an embodiment of the present utility model;

FIG. 10 is a schematic diagram showing the cooperation of the movable valve plate and the fixed valve plate (full cold water state) according to the embodiment of the utility model;

FIG. 11 is a schematic diagram showing the cooperation of the movable valve plate and the fixed valve plate (mixed water state) according to the embodiment of the utility model;

FIG. 12 is a schematic diagram of the cooperation of the movable valve plate and the fixed valve plate (full hot water state) according to the embodiment of the utility model;

FIG. 13 is a schematic view showing the cooperation of the first and second columns (valve handle not swung) in an embodiment of the present utility model;

FIG. 14 is a perspective view of a rotor according to an embodiment of the present utility model;

fig. 15 is a schematic perspective view of a valve housing in an embodiment of the present utility model;

fig. 16 is an exploded perspective view.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-16, a preferred embodiment of a 0 degree shut-off two-in two-out spool is provided.

The utility model provides a two-in two-out case that 0 degree was closed, includes valve casing 1, valve handle 4 and installs rotor 2, driver plate 3, movable valve piece 5 and fixed valve piece 6 in the valve casing, and driver plate 3 restraint can rotate along with rotor 2 in rotor 2 bottom, and can slide relative rotor 2, and the middle part of valve handle 4 is connected with rotor 2 rotation through round pin axle 41, and the upper end of valve handle 4 stretches out from the top of valve casing 1, and the lower extreme of valve handle 4 inserts in the top cavity of driver plate 3.

The movable valve plate 5 is fixed on the bottom surface of the driving plate 3, the fixed valve plate 6 is fixed on the bottom in the valve casing 1, the rotation of the movable valve plate 5 is used for adjusting the mixing proportion of cold water and hot water, and the sliding of the movable valve plate 5 is used for switching different water outlet channels and closing water inlet. The valve casing 1 is provided with a cold water channel 7a, a hot water channel 7b, a first water outlet channel 7c and a second water outlet channel 7d which are corresponding in position on the bottom and the fixed valve plate 6, the movable valve plate 5 is internally provided with a water mixing cavity 51, the superposition area of the water mixing cavity 51 and the cold water channel 7a and the hot water channel 7b is changed by the rotation of the movable valve plate 5, the sliding of the movable valve plate 5 can enable the water mixing cavity 51 to be selectively communicated with the first water outlet channel 7c or the second water outlet channel 7d, and the sliding of the movable valve plate 5 can also determine whether the movable valve plate 5 seals the cold water channel 7a and the hot water channel 7 b.

The valve casing 1 comprises an upper casing 11 and a base 12 which are clamped, the base 12 forms the bottom of the valve casing 1, the fixed valve plate 6 is clamped on the base 12, two inner bosses are arranged on the periphery of the inner top wall of the casing, and a second sealing piece 9b is arranged between the fixed valve plate 6 and the base 12.

The driving plate 3 is provided with a limiting part 31, two circumferentially spaced inner bosses 1a are arranged at the inner top of the valve casing 1, a limiting groove 1b matched with the limiting part 31 is formed between the two inner bosses 1a, and the movable valve plate 5 can slide along with the driving plate 3 in the closing water inlet direction only when the limiting part 31 is aligned with the limiting groove 1b, and the side part of the rotor 2 is exposed out of the limiting part 31 and is inserted into the limiting groove 1b; when the driving plate 3 rotates to a state that the limiting part 31 and the limiting groove 1b are misplaced, the limiting part 31 is blocked by the inner boss 1a, so that the movable valve plate 5 cannot slide along with the driving plate 3 in the closing water inlet direction.

The movable valve plate 5 is internally provided with a first water mixing outlet 511 and a second water mixing outlet 512 which are communicated with the water mixing cavity 51, the first water mixing outlet 511 is always communicated with the first water outlet channel 7c, and the sliding of the movable valve plate 5 can determine whether the second water mixing outlet 512 is communicated with the second water outlet channel 7d or not. The first water mixing outlet 511 is arranged at the center of the bottom surface of the movable valve plate 5, the second water mixing outlet 512 is separated from the first water mixing outlet 511 by a blocking wall 52, and the blocking wall 52 is positioned above the second water outlet channel 7d to block the second water mixing outlet 512 from communicating with the second water outlet channel 7 d.

The movable valve plate 5 is in a 0-degree middle position state, and the water mixing cavity 51 is communicated with the cold water channel 7a and the first water outlet channel 7c and is blocked with the hot water channel 7b and the second water outlet channel 7 d; the movable valve plate 5 slides from the middle position of 0 degrees to one side, so that the bottom surface of the movable valve plate 5 simultaneously seals the cold water channel 7a and the hot water channel 7b, the cold water channel 7a and the hot water channel 7b are blocked from the water mixing cavity 51, and the limiting part 31 is inserted into the limiting groove 1b; the movable valve plate 5 slides from the middle position of 0 degree to the other side, the water mixing cavity 51 is communicated with the cold water channel 7a and the second water outlet channel 7d and is blocked from the hot water channel 7b, and the water mixing cavity 51 is communicated with or blocked from the first water outlet channel 7 c.

The top surface of driver plate 3 is equipped with bellied guide table 32 upwards, and one side of guide table 32 is located to spacing portion 31, rotor 2's bottom be equipped with spacing portion 31 matched guide groove 21, guide table 32 is arranged in guide groove 21 and can slide, inserts on the front and back wall of guide table 32 and is equipped with the first post 8a that the week wall part revealed, insert on the front and back inner wall of guide groove 21 and be equipped with the second post 8b that the week wall part revealed, first post 8a need cross second post 8b, just can make movable valve plate 5 follow driver plate 3 from one side position to the opposite side position.

The driving plate 3 is fixed at the top of the movable valve plate 5 in a buckling manner, a first sealing piece 9a is arranged between the driving plate 3 and the movable valve plate 5, a concave cavity with an open top is arranged on the movable valve plate 5, and the bottom surface of the driving plate 3 covers the open top of the concave cavity to form the water mixing cavity 51; the first water outlet channel 7c is centrally located, and the cold water channel 7a, the hot water channel 7b and the second water outlet channel 7d are arranged around the periphery of the first water outlet channel 7 c.

The side wall of the rotor 2 is provided with a side-protruding limiting block 22, and the limiting block 22 is positioned between the two inner bosses 1a so as to limit the rotation angle of the rotor 2.

The working principle and the working process of the 0-degree closed two-in and two-out valve core are as follows:

as shown in fig. 3, 4 and 10, in the state that the valve handle 4 does not swing back and forth and does not drive the dial 3 and the movable valve plate 5 to slide radially (i.e. the valve handle 4 does not rotate about the pin 41), the movable valve plate 5 is in a middle position state of 0 degrees, the water mixing cavity 51 is communicated with the cold water channel 7a and the first water outlet channel 7c and is blocked by the hot water channel 7b and the second water outlet channel 7d, cold water flows out from the first water outlet channel 7c after passing through the cold water channel 7a and the water mixing cavity 51, and the second water outlet channel 7d is in a full cold water state; as shown in fig. 5, 11 and 12, the rotation of the movable valve plate 5 can enable the water mixing cavity 51 to be communicated with the cold water channel 7a and/or the hot water channel 7b, that is, the rotation of the movable valve plate 5 adjusts the mixing proportion of cold water and hot water, so as to realize the adjustment of the water flow temperature.

As shown in fig. 5, 8 and 12, in the state that the movable valve plate 5 is at the 0 degree middle position, the limiting part 31 can be aligned with the limiting groove 1b, the valve handle 4 drives the movable valve plate 5 to slide along with the driving plate 3 from the 0 degree middle position to one side, the limiting groove 1b can give way to the movement of the driving plate 3, the limiting part 31 is inserted into the limiting groove 1b, the blocking wall 52 of the movable valve plate 5 can simultaneously block the cold water channel 7a and the hot water channel 7b, and the cold water channel 7a and the hot water channel 7b are blocked with the water mixing cavity 51, so that the first water outlet channel 7c and the second water outlet channel 7d do not flow out, and the water flow is closed at the moment.

As shown in fig. 8 and 9, the valve handle 4 drives the movable valve plate 5 to slide along with the dial 3 from the middle position of 0 degree towards the other side, the bottom surface of the movable valve plate 5 is not blocked with the cold water channel 7a, the water mixing cavity 51 is communicated with the cold water channel 7a, the first water outlet channel 7c and the second water outlet channel 7d and blocked with the hot water channel 7b, cold water flows out in two paths, one path flows out from the first water outlet channel 7c after passing through the water mixing cavity 51, and the other path flows out from the second water outlet channel 7d after passing through the water mixing cavity 51, namely, the full cold water state is obtained; the rotation of the movable valve plate 5 can enable the water mixing cavity 51 to be communicated with the cold water channel 7a and/or the hot water channel 7b, namely, the rotation of the movable valve plate 5 adjusts the mixing proportion of cold water and hot water, so that the adjustment of the water flow temperature is realized.

It should be noted that, in the description of the present embodiment, the terms "front, rear", "left, right", "up, down", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in the specific orientation, and thus should not be construed as limiting the present utility model. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims (10)

1. The utility model provides a two-in two-out case that 0 degree was closed, includes valve casing (1), valve handle (4) and installs rotor (2) in the valve casing, driver plate (3), move valve block (5) and fixed valve block (6), driver plate (3) restraint can rotate along with rotor (2) in rotor (2) bottom, and can slide relative rotor (2), move valve block (5) and fix the bottom surface at driver plate (3), fixed valve block (6) are fixed in the bottom in valve casing (1), the rotation of moving valve block (5) is used for adjusting cold water, hot water mixing ratio, the slip of moving valve block (5) is used for switching different play water channels to and is used for closing the inflow; the method is characterized in that: the driving plate (3) is provided with a limiting part (31), two circumferentially spaced inner bosses (1 a) are arranged at the inner top of the valve casing (1), a limiting groove (1 b) matched with the limiting part (31) is formed between the two inner bosses (1 a), and the movable valve plate (5) can slide along the driving plate (3) in the closing water inlet direction only when the limiting part (31) is aligned with the limiting groove (1 b), and the side part of the rotor (2) is exposed out of the limiting part (31) and is inserted into the limiting groove (1 b); when the driving plate (3) rotates to a state that the limiting part (31) and the limiting groove (1 b) are dislocated, the limiting part (31) is blocked by the inner boss (1 a) so that the movable valve plate (5) cannot slide along with the driving plate (3) in the closing water inlet direction.

2. The 0 degree shut-off spool of claim 1, wherein: the valve is characterized in that a cold water channel (7 a), a hot water channel (7 b), a first water outlet channel (7 c) and a second water outlet channel (7 d) which correspond to each other in position are arranged at the bottom of the valve casing (1) and on the fixed valve plate (6), a water mixing cavity (51) is arranged in the movable valve plate (5), the rotation of the movable valve plate (5) can enable the overlapping area of the water mixing cavity (51) with the cold water channel (7 a) and the hot water channel (7 b) to change, the sliding of the movable valve plate (5) can enable the water mixing cavity (51) to be communicated with the first water outlet channel (7 c) or the second water outlet channel (7 d), and whether the movable valve plate (5) is blocked by the cold water channel (7 a) and the hot water channel (7 b) can be determined.

3. The 0 degree shut-off spool of claim 2, wherein: the movable valve plate (5) is internally provided with a first water mixing outlet (511) and a second water mixing outlet (512) which are communicated with the water mixing cavity (51), the first water mixing outlet (511) is always communicated with the first water outlet channel (7 c), and the sliding of the movable valve plate (5) can determine whether the second water mixing outlet (512) is communicated with the second water outlet channel (7 d).

4. A 0 degree closed two-in two-out spool as in claim 3, wherein: the movable valve plate (5) is in a 0-degree middle position state, and the water mixing cavity (51) is communicated with the cold water channel (7 a) and the first water outlet channel (7 c) and is blocked with the hot water channel (7 b) and the second water outlet channel (7 d);

the movable valve plate (5) slides from the middle position of 0 degree to one side, so that the bottom surface of the movable valve plate (5) can simultaneously block the cold water channel (7 a) and the hot water channel (7 b), the cold water channel (7 a) and the hot water channel (7 b) are blocked from the water mixing cavity (51), and the limiting part (31) is inserted into the limiting groove (1 b);

the movable valve plate (5) slides from the middle position of 0 degree to the other side, the water mixing cavity (51) is communicated with the cold water channel (7 a) and the second water outlet channel (7 d) and is blocked with the hot water channel (7 b), and the water mixing cavity (51) is communicated with or blocked with the first water outlet channel (7 c).

5. The 0 degree shut-off spool of claim 1, wherein: the top surface of driver plate (3) is equipped with bellied guide table (32) upwards, one side of guide table (32) is located to spacing portion (31), the bottom of rotor (2) be equipped with guide groove (21) that spacing portion (31) match, guide table (32) are arranged in guide groove (21) and can slide.

6. The 0 degree closed two-in two-out spool of claim 5, wherein: first post (8 a) that circumference wall portion revealed is inserted on the front and back wall of guide table (32), insert on the front and back inner wall of guide recess (21) and be equipped with second post (8 b) that circumference wall portion revealed, first post (8 a) need pass second post (8 b) just can make movable valve block (5) follow driver plate (3) from one side position to the opposite side position.

7. The 0 degree closed two-in two-out spool of claim 4, wherein: the first water mixing outlet (511) is arranged at the center of the bottom surface of the movable valve plate (5), the second water mixing outlet (512) is separated from the first water mixing outlet (511) through a blocking wall (52), and the blocking wall (52) is positioned above the second water outlet channel (7 d) to block the second water mixing outlet (512) from being communicated with the second water outlet channel (7 d).

8. The 0 degree closed two-in two-out spool of claim 7, wherein: the driving plate (3) is fixed at the top of the movable valve plate (5) in a buckling manner, a first sealing piece (9 a) is arranged between the driving plate (3) and the movable valve plate (5), a concave cavity with an open top is arranged on the movable valve plate (5), and the bottom surface of the driving plate (3) covers the open top of the concave cavity to form the water mixing cavity (51); the first water outlet channel (7 c) is positioned at the center, and the cold water channel (7 a), the hot water channel (7 b) and the second water outlet channel (7 d) are arranged around the periphery of the first water outlet channel (7 c); the middle part of valve handle (4) is connected with rotor (2) through round pin axle (41) rotation, and the upper end of valve handle (4) stretches out from the top of valve casing (1), and the lower extreme of valve handle (4) inserts in the top cavity of driver plate (3).

9. The 0 degree shut-off spool of claim 1, wherein: the side wall of the rotor (2) is provided with a side-protruding limiting block (22), and the limiting block (22) is positioned between the two inner bosses (1 a) so as to limit the rotation angle of the rotor (2).

10. The 0 degree shut-off spool of claim 1, wherein: the valve casing (1) comprises an upper casing (11) and a base (12) which are connected in a clamping mode, the base (12) forms the bottom of the valve casing (1), the fixed valve plate (6) is connected to the base (12) in a clamping mode, two inner bosses are arranged on the periphery of the inner top wall of the casing, and a second sealing piece (9 b) is arranged between the fixed valve plate (6) and the base (12).