CN210344390U - Pressure-resistant switch valve core - Google Patents

Abstract

The utility model discloses a withstand voltage switch case, including casing, handle, movable valve piece, fixed valve piece and base, seted up inhalant canal one and exhalant canal one, characterized by on the fixed valve piece: the movable valve plate is provided with a first communicating groove on the upper surface and/or the lower surface of the handle, the movable valve plate is also provided with a first communicating channel communicated with the first communicating groove and the lower surface of the movable valve plate, and the first communicating channel is correspondingly communicated with the first water inlet channel and the first water outlet channel respectively. The pressure-resistant switch valve core has good pressure resistance and can realize bidirectional pressure resistance.

Description

Pressure-resistant switch valve core

Technical Field

The utility model relates to a case, in particular to withstand voltage switch case.

Background

The switch valve core is a device for controlling water flow. The switch valve core generally uses ceramic valve block to control the rivers, and the valve block divide into and moves valve block and fixed valve block, and the laminating is sealed between two valve blocks, and fixed valve block circumference is fixed on the base, is provided with the water inlet channel and the play water passageway that run through fixed valve block on the fixed valve block, and fixed valve block and handle circumference are fixed and rotate along with the handle rotates. The lower surface of the movable valve plate is provided with a communicating groove, and when the movable valve plate is rotated, the communicating groove is communicated with the water inlet channel and the water outlet channel on the fixed valve plate, so that the flow is controlled.

As shown in the Chinese patent with the patent number of 201710190716.6, the communicating groove on the movable valve plate of the valve core is arranged on the lower surface of the movable valve plate, when the valve core is closed, the communicating groove is communicated with the water outlet channel and is not communicated with the water inlet channel, so that the water pressure in the water inlet channel can not act on the communicating channel, only acts on a small part of area of the movable valve plate just facing the water inlet channel, and the force for separating the movable valve plate from the fixed valve plate to be attached and sealed is small, so that the movable valve plate can bear higher water inlet pressure. The two-way synchronous switch throttling valve core has better pressure resistance only when water flow flows in the forward direction, namely the water flow enters from the water inlet channel and the water flow exits from the water outlet channel. When the valve is used, the water inlet channel and the water outlet channel can not be exchanged, and the pressure resistance when the valve core is closed when the water inlet channel and the water outlet channel feed water is poor. Under normal conditions, the movable valve plate is rotated counterclockwise to open the valve core, and the movable valve plate is rotated clockwise to close the valve core. In some water taps, such as the water tap disclosed in patent No. 201320194478.3, when the left inlet 13 of the valve body is connected to the hot water pipe and the right inlet is connected to the cold water pipe, the valve core cannot be used to control the water flow. The valve core has better pressure resistance only when water flow flows in the forward direction, and does not have better pressure resistance when the water flow flows in the reverse direction. When the water inlet channel and the water outlet channel are installed in the water faucet body, the water inlet channel and the water outlet channel in the water faucet body need to be distinguished, the use is inconvenient, and the applicable environment is limited. In addition, if the communicating groove on the movable valve plate and the water inlet channel and the water outlet channel on the fixed valve plate are designed to be in a state of being completely staggered when the valve core is closed, namely when the valve core is closed, the projection of the communicating groove on the fixed valve plate is not overlapped with the water inlet channel and the water outlet channel. This enables the valve body to have pressure resistance in both the forward and reverse directions, but at the same time, the flow areas of the water inlet passage and the water outlet passage become small, which affects the flow rate of the valve body.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a withstand voltage switch case, the throughflow is great, and just contrary two-way better pressure-resistant ability that all has is moved, and inlet channel and outlet channel can change wantonly and connect into water.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a withstand voltage switch case, includes casing, handle, movable valve piece, fixed valve piece and base, has seted up inhalant canal one and exhalant canal one on the fixed valve piece, characterized by: the movable valve plate is provided with a first communicating groove on the upper surface and/or the lower surface of the handle, the movable valve plate is also provided with a first communicating hole for communicating the first communicating groove with the lower surface of the movable valve plate, and the first communicating hole is correspondingly communicated with the first water inlet channel and the first water outlet channel respectively.

Through the technical scheme, when the valve core is in a closed state, the first water inlet channel and the first water outlet channel are in abutting seal with the lower surface of the movable valve plate and are not communicated with any communicating channel, the water inlet pressure is only applied to the lower surface of the movable valve plate, which is just opposite to the cross section of the water inlet channel, the stress area on the movable valve plate is small, and the force far away from the fixed valve plate is small, so that the valve core has good pressure resistance and can bear high water pressure. When the relative position of the movable valve plate and the fixed valve plate is changed, and the pair of water inlet channels I on the movable valve plate are respectively communicated with the water inlet channel I and the water inlet channel II, inlet water enters the communicating groove I on the upper surface of the movable valve plate and/or the lower surface of the handle through the communicating hole I and then enters the fixed valve plate again through the communicating hole I to discharge water. When the valve core is closed, the first water inlet channel and the first water outlet channel are not communicated with the first communication hole, so that the valve core can feed water from the first water inlet channel and the first water outlet channel and can feed water from the first water outlet channel and the first water inlet channel and the first water outlet channel, and the valve core has better pressure resistance no matter the water is fed from the first water inlet channel or the first water outlet channel. Meanwhile, when the valve core is closed, the communicating groove does not need to be completely staggered with the water inlet channel and the water outlet channel, the flow areas of the water inlet channel and the water outlet channel can be well ensured, and the flow capacity of the valve core is ensured.

The pair of communicating holes are correspondingly communicated with the first water inlet channel and the second water outlet channel, namely when the movable valve plate moves to the communicating position, the two communicating channels are respectively provided with parts which are overlapped with the first communicating holes and the second communicating holes, so that water in the first water inlet channel can enter one communicating hole, and water in the second communicating hole can enter the first water outlet channel.

Preferably, the fixed valve plate is further provided with a water inlet channel II and a water outlet channel II, the water inlet channel II and the water outlet channel II are located on the same side of the fixed valve plate, the water inlet channel I and the water outlet channel I are located on the other side of the fixed valve plate, the upper surface of the movable valve plate and/or the lower surface of the handle are/is further provided with a communicating groove II, a sealing ring is arranged on the outer side of the communicating groove I and/or the outer side of the communicating groove II, the communicating groove II is communicated with the lower surface of the movable valve plate through a pair of communicating holes II, and the communicating.

Through the technical scheme, the two water paths can be controlled simultaneously by the arrangement of the water inlet channel II and the water outlet channel II. The setting of corresponding sealing washer can be sealed between moving valve upper surface and the handle lower surface, prevents to take place to cross water between two water routes.

In addition, the number of the water inlet channels and the water outlet channels can be increased according to the needs, for example, a third water inlet channel, a third water outlet channel, a fourth water inlet channel, a fourth water outlet channel and the like are arranged. When setting up a plurality of inhalant canal, the adjacent setting of same group inhalant canal to avoid taking place to interfere between the intercommunication groove of moving valve upper surface.

Preferably, the first communication holes are located at two ends of the first communication groove, and the second communication holes are located at two ends of the second communication groove.

Through the technical scheme, the first communication hole is formed in the two ends of the first communication groove, so that the length of the communication channel is shortest, the pressure area between the movable valve plate and the handle is reduced when the communication is performed, the force in the opposite direction between the movable valve plate and the handle is reduced, the pressure resistance during communication is improved, and when the blockage occurs on the water outlet side during communication, the movable valve plate and the handle on the two sides of the communication groove are large in pressure area, so that the sealing failure between the movable valve plate and the handle is caused.

Preferably, the first communication groove and/or the second communication groove are in a runway shape or an arc shape.

Preferably, the movable valve plate is arranged on the fixed valve plate in a sliding manner; or the movable valve plate rotates on the fixed valve plate along the axis of the movable valve plate, and the first water inlet channel are symmetrical about the center of the fixed valve plate; or the movable valve plate rotates on the fixed valve plate along the axis of the fixed valve plate, and the first water inlet channel and the second water inlet channel are adjacently arranged.

Through the technical scheme, the movable valve plate can slide along one direction on the fixed valve plate to cut off or conduct the water inlet channel, the water outlet channel and the pair of communication channels.

The corresponding movable valve plate can also rotate on the fixed valve plate along the axis of the fixed valve plate, so that the water inlet channel, the water outlet channel and the pair of communication channels are cut off or communicated.

When the movable valve plate rotates along the axis of the fixed valve plate, the first water inlet channel and the second water inlet channel can be symmetrically arranged about the axis of the fixed valve plate, and the corresponding first water outlet channel and the corresponding second water outlet channel are also symmetrically arranged about the axis of the fixed valve plate, so that the first water inlet channel, the first water outlet channel, the second water inlet channel and the second water outlet channel can be simultaneously communicated when the movable valve plate rotates.

The corresponding water inlet channel I and the water inlet channel II can also be arranged adjacently, so that the communication hole I can also be communicated with the water inlet channel I and the water inlet channel II, and the water feeding function is realized. When the valve core is connected with the thermostatic valve core and the solar water heater, the first water inlet channel can be communicated with the cold water inlet pipe, the first water outlet channel can be connected with the cold water inlet of the thermostatic valve core, the second water inlet channel can be connected with the solar water heater, the second water outlet channel can be connected with the hot water inlet of the thermostatic valve core, and when the first water inlet channel is communicated with the second water inlet channel, high-pressure water in the cold water supply pipeline can enter from the first water inlet channel and then flows out from the second water inlet channel into a water tower connected with the solar water heater, so that water supply is realized for the water tower.

Preferably, the inner side of the shell is provided with a positioning groove, and the upper end surface or the side surface of the handle is provided with a positioning piece.

Through the technical scheme, the relative positions of the movable valve plate and the fixed valve plate can be accurately positioned by the positioning grooves and the positioning pieces, so that the water inlet channel and the water outlet channel are accurately communicated with the corresponding communication channels.

Preferably, the number of the clamping grooves is three, and the clamping grooves correspond to closing, communicating and water feeding states respectively.

Through the technical scheme, the valve core is more accurately controlled and more convenient to use.

Preferably, the handle and the base are provided with clamping blocks, and the movable valve plate and the fixed valve plate are provided with clamping grooves matched with the clamping blocks.

Through the technical scheme, the positions of the movable valve plate and the fixed valve plate can be accurately determined, meanwhile, the torque can be well transmitted, and the relative movement or rotation of the movable valve plate and the fixed valve plate is realized.

Preferably, a sealing element is arranged between the fixed valve plate and the base, and the sealing element is arranged on the lower section of the base.

Through above-mentioned technical scheme, the setting of sealing member can improve the sealed effect between fixed valve piece and the base, the sealed effect of base and tap valve core chamber bottom surface.

Compared with the prior art, the beneficial effects of the utility model are that: the first communicating groove is formed in the upper surface of the movable valve plate and/or the lower surface of the handle, so that the problem that when the valve core is in a closed state, the water inlet channel or the water outlet channel and the communicating groove are in a communicated state is avoided, and the problem that a large pressure bearing area is generated between the movable valve plate and the fixed valve plate or between the movable valve plate and the handle to influence the integral pressure bearing capacity of the valve core is avoided.

Drawings

FIG. 1 is an exploded view of the first embodiment;

FIG. 2 is a perspective view of the movable valve plate according to the first embodiment;

FIG. 3 is a perspective view of the lower surface of the handle in accordance with one embodiment;

FIG. 4 is a perspective view of a fixed valve plate according to an embodiment;

FIG. 5 is a schematic view showing the position of the movable valve plate overlapping with the fixed valve plate when the valve element is in the closed state according to the first embodiment;

FIG. 6 is a schematic view showing the overlapping position of the movable valve plate and the fixed valve plate when the valve element is in the communicating state according to the first embodiment;

FIG. 7 is a schematic view of an inner side structure of the housing according to the first embodiment;

FIG. 8 is a perspective view of a fixed valve plate according to the second embodiment;

FIG. 9 is a schematic view showing the overlapping position of the movable valve plate and the fixed valve plate when the valve element is in the closed state according to the second embodiment;

FIG. 10 is a schematic view showing the overlapping position of the movable valve plate and the fixed valve plate when the valve element is in the closed state according to the second embodiment;

FIG. 11 is a schematic view showing the overlapping position of the movable valve plate and the fixed valve plate when the valve core is in the closed state according to the second embodiment.

Reference numerals: 1. a housing; 2. a handle; 3. a movable valve plate; 4. a fixed valve plate; 5. a base; 6. a first water inlet channel; 7. a first water outlet channel; 8. a first communicating groove; 9. a first communication hole; 10. a water inlet channel II; 11. a second water outlet channel; 12. a second communicating groove; 13. a seal ring; 14. a second communication hole; 15. a positioning member; 16. positioning a groove; 17. a clamping block; 18. a card slot; 19. a seal member; 20. sealing the groove.

Detailed Description

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

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Embodiment one, a pressure-resistant switch valve core,

a pressure-resistant switch valve core comprises a shell 1, a handle 2, a movable valve plate 3, a fixed valve plate 4 and a base 5. Handle 2, movable valve piece 3, fixed valve piece 4 are installed between casing 1 and base 5, and 1 top surface of casing is worn out to 2 upper ends of handle, and 3 upper end edges of movable valve piece are provided with draw-in groove 18, and 2 lower extreme edges of handle are provided with fixture block 17, and fixture block 17 is gone into in the draw-in groove 18 to it is fixed to make circumference between movable valve piece 3 and the handle 2. The edge of the lower end of the fixed valve plate 4 is also provided with a clamping groove 18, the base 5 is provided with a clamping block 17, and the clamping block 17 on the base 5 is clamped into the clamping groove 18 of the fixed valve plate 4, so that the fixed valve plate 4 and the base 5 are circumferentially fixed. Meanwhile, the base 5 is fixedly connected with the shell 1 through a buckle. When the upper end of the handle 2 is rotated, the handle 2 drives the movable valve plate 3 to rotate along the center of the fixed valve plate 4, so that the movable valve plate 3 and the fixed valve plate 4 rotate relatively to change the relative position. In order to improve the sealing effect, a sealing element 19 is arranged between the fixed valve plate 4 and the base 5, and the sealing element 19 is also arranged on the lower surface of the base 5. A plurality of water inlet holes and water outlet holes are formed on the base 5 corresponding to the water inlet channels and the water outlet channels on the fixed valve plate 4.

The fixed valve plate 4 is provided with a first water inlet channel 6, a second water inlet channel 10, a first water outlet channel 7 and a second water outlet channel 11, and the first water inlet channel 6, the second water inlet channel 10, the first water outlet channel 7 and the second water outlet channel 11 penetrate through the fixed valve plate 4 along the thickness direction of the fixed valve plate 4. The cross-sectional shapes of the water inlet channel and the water outlet channel are not limited, and a circular shape is adopted in the embodiment. The upper surface of the movable valve plate 3 is provided with a first communicating groove 8 and a second communicating groove 12. And a pair of first communication holes 9 and a pair of second communication holes 14 are respectively arranged at the two ends of the first communication groove 8 and the second communication groove 12. The two first communication holes 9 are respectively positioned at two ends of the first communication groove 8 and penetrate through the movable valve plate 3 along the thickness direction of the movable valve plate 3, and the first communication holes 9 are communicated with the first communication groove 8 and the lower surface of the movable valve plate 3. The second communication hole 14 is also provided in the same manner so as to communicate the second communication groove 12 with the lower surface of the movable valve plate 3.

When the movable valve plate 3 is rotated, the positions of the first communication hole 9 and the second communication hole 14 are changed simultaneously. When the first communication hole 9 is communicated with the first water inlet channel 6 and the first water outlet channel 7, the two first communication holes 9 are respectively superposed on the first water inlet channel 6 and the first water outlet channel 7, water can flow into the first communication groove 8 from the first water inlet channel 6 through the first communication channel, then flow downwards from the first communication hole 9 at the other end of the first communication groove 8, enter the first water outlet channel 7, and finally flow out from the first water outlet channel 7. At this time, the two communication holes 14 are also overlapped with the inlet channel 10 and the outlet channel 11, so that the second branch water channel is communicated.

The handle 2 can also be provided with a first communication groove 8 and a second communication groove 12, the first communication groove 8 on the handle 2 is superposed with the first communication groove 8 on the movable valve plate 3, and the second communication groove 12 on the handle 2 is superposed with the second communication groove 12 on the movable valve plate 3. And sealing rings 13 are also arranged on the outer sides of the first communication groove 8 and the second communication groove 12 on the handle 2, and sealing rings 13 are arranged in the sealing rings 13. The setting of sealing washer 13 can guarantee to keep better encapsulated situation between 3 upper surfaces of movable valve block and the 2 lower surfaces of handle, prevents to take place to leak between movable valve block 3 and the handle 2, prevents to take place to cross water simultaneously between two water routes. When the valve core is closed, the communicating groove I8 does not need to be completely staggered with the water inlet channel I and the water outlet channel I, so that the flow areas of the water inlet channel I6 and the water outlet channel I7 can be well ensured, and the flow capacity of the valve core is ensured. Correspondingly, the second communication groove 12 does not need to be completely staggered with the second water inlet channel 10 and the second water outlet channel 11, the flow areas of the second water inlet channel 10 and the second water outlet channel 11 can be well ensured, and the flow capacity of the valve core is ensured.

A positioning part 15 mounting hole is formed in the side surface of the handle 2, the positioning part 15 is mounted in the positioning part 15 mounting hole, and a spring is further mounted in the positioning part 15 mounting hole. The inner wall of the shell 1 is provided with at least two positioning grooves 16, and the positioning grooves 16 are used for determining the position of the movable valve plate 3, so that the position of the closed state and the position of the completely opened state of the movable valve plate 3 are determined, and the movable valve plate is convenient to use.

As shown in fig. 5, the dashed dotted lines are used to indicate the corresponding positions of the first water inlet channel 6, the first water outlet channel 7, the second water inlet channel 10 and the second water outlet channel 11 on the fixed valve plate 4, and at this time, the valve core is in a closed state. The two communication holes I9 and the two communication holes II 14 are not communicated with the water inlet channel I6, the water inlet channel II 10, the water outlet channel I7 and the water outlet channel II 11. As shown in fig. 6, after the movable valve plate 3 rotates counterclockwise by a certain angle, one communication hole one 9 coincides with the water inlet channel one 6, the other communication hole one 9 coincides with the water outlet channel one 7, water enters the communication groove one 8 from the water inlet channel one 6 through the communication hole one 9, and then flows out from the communication hole one 9 and the water outlet channel one 7 on the other side of the communication groove one 8, so that the communication between the water inlet channel one 6 and the water outlet channel one 7 is realized. And the corresponding one of the second communication holes 14 is overlapped with the second water inlet channel 10, the other one of the second communication holes 14 is overlapped with the second water outlet channel 11, water flows into the second communication groove 12 from the second water inlet channel 10 through the one of the second communication holes 14, and then flows out from the second communication hole 14 on the other side of the second communication groove 12 and the second water outlet channel 11, so that the second water inlet channel 10 is communicated with the second water outlet channel 11.

In addition, it should be noted that although the channel on the lower right side is the first water inlet channel 6 and the channel on the upper right side is the first water outlet channel 7 as shown in fig. 4, the water inlet pipeline and the first water outlet channel 7 may be connected during actual use, so as to achieve the same switching function. Similarly, although the channel marked on the upper left side in fig. 4 is the water inlet channel two 10, and the channel marked on the lower left side is the water outlet channel two 11, in the actual use process, the water inlet pipeline can be communicated with the water outlet channel two 11, and the water outlet pipeline can be communicated with the water inlet channel two 10.

Second embodiment, a pressure-resistant switch valve core with water feeding function

Referring to fig. 4 and 8, the difference between the second embodiment and the first embodiment is that in the second embodiment, the first water inlet channel 6 is located at the lower right side of the fixed valve plate 4, the first water outlet channel 7 is located at the upper right side of the fixed valve plate 4, the second water inlet channel 10 is located at the lower left side of the fixed valve plate 4, the second water outlet channel 11 is located at the upper left side of the fixed valve plate 4, and the first water inlet channel 6 and the water inlet through hole are adjacently arranged.

As shown in fig. 10, when the switch valve core is in the closed state, the two communication holes one 9 and the two communication holes two 14 are not communicated with the water inlet channel one 6, the water inlet channel two 10, the water outlet channel one 7 and the water outlet channel two 11. As shown in fig. 11, after the movable valve plate 3 rotates counterclockwise by a certain angle, one communication hole one 9 coincides with the water inlet channel one 6, and the other communication hole one 9 coincides with the water outlet channel one 7, so as to communicate the water inlet channel one 6 with the water outlet channel one 7. Meanwhile, one of the second communication holes 14 is overlapped and communicated with the second water inlet channel 10, and the other communication hole is overlapped and communicated with the second water outlet channel 11.

In addition, when needs realized the function of watering, movable valve piece 3 clockwise rotation certain angle for intercommunication groove one 8 is in inhalant canal one 6 and inhalant canal two 10 tops, two intercommunicating pores one 9 at intercommunication groove one 8 both ends take place the coincidence with inhalant canal one 6 and inhalant canal two 10 simultaneously, thereby switch on inhalant canal one 6 and inhalant canal two 10, make the water under high pressure in inhalant canal one 6 can flow to inhalant canal two 10 through intercommunication groove one 8, enter into the water tower of solar water heater at last, realize the function of watering.

In the third embodiment, a pressure-resistant switch valve core,

the difference between the third embodiment and the first embodiment is that in the third embodiment, the handle 2 is a swing-type handle 2, and when the swing-type handle 2 swings, the movable valve plate 3 is driven to slide on the upper surface of the fixed valve plate 4, so that the communication hole I9 and the communication hole II 14 on the movable valve plate 3 are communicated with and disconnected from the water inlet channel I6, the water outlet channel I7, the water inlet channel II 10 and the water outlet channel II 11 on the fixed valve plate 4.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims (9)

1. The utility model provides a withstand voltage switch case, includes casing (1), handle (2), moves valve block (3), decides valve block (4) and base (5), has seted up water inlet channel (6) and water outlet channel (7) on deciding valve block (4), characterized by: the upper surface of the movable valve plate (3) and/or the lower surface of the handle (2) are/is provided with a first communicating groove (8), the movable valve plate (3) is further provided with a pair of first communicating holes (9) for communicating the first communicating groove (8) with the lower surface of the movable valve plate (3), and the pair of first communicating holes (9) are respectively and correspondingly communicated with a first water inlet channel (6) and a first water outlet channel (7).

2. A pressure-resistant switch valve cartridge as defined in claim 1, wherein: the fixed valve plate (4) is further provided with a water inlet channel II (10) and a water outlet channel II (11), the water inlet channel II (10) and the water outlet channel II (11) are located on the same side of the fixed valve plate (4), the water inlet channel I (6) and the water outlet channel I (7) are located on the other side of the fixed valve plate (4), the upper surface of the movable valve plate (3) and/or the lower surface of the handle (2) are further provided with a communicating groove II (12), the outer sides of the communicating groove I (8) and/or the communicating groove II (12) are provided with sealing rings (13), the communicating groove II (12) is communicated with the lower surface of the movable valve plate (3) through a pair of communicating holes II (14), and the communicating holes II (14) are respectively and correspondingly communicated with the water inlet channel II.

3. A pressure-resistant switch valve cartridge according to claim 1 or 2, wherein: the first communication holes (9) are respectively arranged at two ends of the first communication groove (8), and the second communication holes (14) are respectively arranged at two ends of the second communication groove (12).

4. A pressure-resistant switch valve cartridge as defined in claim 3, wherein: the first communication groove (8) and/or the second communication groove (12) are in a runway shape or an arc shape.

5. A pressure-resistant switch valve cartridge as defined in claim 1, wherein: the movable valve plate (3) is arranged on the fixed valve plate (4) in a sliding manner; or the movable valve plate (3) rotates on the fixed valve plate (4) along the axis of the fixed valve plate, and the water inlet channel I (6) and the water inlet channel II (10) are symmetrical about the center of the fixed valve plate (4); or the movable valve plate (3) rotates on the fixed valve plate (4) along the axis of the fixed valve plate, and the first water inlet channel (6) and the second water inlet channel (10) are arranged adjacently.

6. A pressure-resistant switch valve cartridge as defined in claim 5, wherein: a positioning groove (16) is arranged on the inner side of the shell (1), and a positioning piece (15) is arranged on the upper end surface or the side surface of the handle (2).

7. A pressure-resistant switch valve cartridge as defined in claim 6, wherein: the number of the clamping grooves (18) is three, and the clamping grooves respectively correspond to the closing, the communication and the water feeding states of the valve core.

8. A pressure-resistant switch valve cartridge as defined in claim 7, wherein: clamping blocks (17) are arranged on the handle (2) and the base (5), and clamping grooves (18) matched with the clamping blocks (17) are arranged on the movable valve plate (3) and the fixed valve plate (4).

9. A pressure-resistant switch valve cartridge as defined in claim 1, wherein: a sealing element (19) is arranged between the fixed valve plate (4) and the base (5), and the sealing element (19) is arranged on the lower surface of the base (5).

Images