CN110630771A

CN110630771A - Water valve

Info

Publication number: CN110630771A
Application number: CN201810653851.4A
Authority: CN
Inventors: 周小伟; 王俊杰; 邓冬
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2018-06-22
Filing date: 2018-06-22
Publication date: 2019-12-31

Abstract

The present invention provides a water valve comprising: the valve body is provided with an accommodating cavity, and the valve body is also provided with a water inlet pipe and a water outlet pipe which are communicated with the accommodating cavity; at least one part of the valve core is arranged in the containing cavity and can rotate, and an overflowing through hole for communicating the water inlet pipe and the water outlet pipe is formed in the valve core; a part of the water inlet pipe and/or the water outlet pipe extends into the accommodating cavity to form a mounting pipe section; and the axial first end of the sealing ring is sleeved on the mounting pipe section, and the end surface of the axial second end of the sealing ring is adaptive to the valve core. The invention solves the problem that in the prior art, because the arrangement mode of the sealing ring between the valve body and the valve core of the water valve is unreasonable, the sealing failure between the valve body and the valve core is easy to cause, the leakage of the water valve occurs, or the water valve cannot be completely closed, and the working stability of the water valve is influenced.

Description

Water valve

Technical Field

The invention relates to the technical field of cooling of a heat management system of a vehicle, in particular to structural improvement of a water valve.

Background

In a vehicle thermal management system, it is generally necessary to cool and dissipate heat generated by heat generating components such as a battery, a motor, an electronic control module, and a heater core of a vehicle using a refrigerant circulating through a cooling pipe.

Since different heat generating components generate different amounts of heat, in order to reasonably control the temperatures of the different heat generating components, the flow rate of the refrigerant flowing through the cooling pipelines of the different heat generating components needs to be accurately controlled.

The sealing ring between the valve body and the valve core of the existing water valve is unreasonable in arrangement mode, and the valve core is easy to be stressed to move in position in the rotating process, so that the sealing failure between the valve body and the valve core is caused, the water valve is leaked, or the water valve cannot be completely closed, and the working stability of the water valve is seriously influenced.

Disclosure of Invention

The invention mainly aims to provide a water valve, which aims to solve the problem that in the prior art, because a sealing ring between a valve body and a valve core of the water valve is unreasonable in arrangement mode, the sealing between the valve body and the valve core is easy to fail, so that the water valve leaks or cannot be completely closed, and the working stability of the water valve is influenced.

To achieve the above object, the present invention provides a water valve comprising: the valve body is provided with an accommodating cavity, and the valve body is also provided with a water inlet pipe and a water outlet pipe which are communicated with the accommodating cavity; at least one part of the valve core is arranged in the containing cavity and can rotate, and an overflowing through hole for communicating the water inlet pipe and the water outlet pipe is formed in the valve core; a part of the water inlet pipe and/or the water outlet pipe extends into the accommodating cavity to form a mounting pipe section; and the axial first end of the sealing ring is sleeved on the mounting pipe section, and the end surface of the axial second end of the sealing ring is adaptive to the valve core.

Furthermore, the water valve still includes the stationary blade, and the stationary blade setting is holding the intracavity and is connected with the internal face that holds the chamber, has seted up the pilot hole on the stationary blade, set up the ring groove with the pore wall joint of pilot hole on the outer wall of sealing ring, and the sealing ring passes through ring groove and stationary blade assembly.

Furthermore, two clamping grooves symmetrically arranged on two axial sides of the installation pipe section are formed in the inner wall surface of the accommodating cavity, the fixing piece comprises an assembly plate section and two bending plate sections respectively connected with two ends of the assembly plate section, the assembly holes are formed in the assembly plate section, and the two bending plate sections are clamped in the two clamping grooves in a one-to-one correspondence mode.

Further, the outer diameter of the mounting tube section is gradually reduced toward the valve element.

Further, the installation pipe section is one, and the installation pipe section is formed by a part of the water inlet pipe extending into the accommodating cavity.

Furthermore, the water valve also comprises a driving mechanism for driving the valve core to rotate, the valve body comprises a main valve body and an installation valve body which are connected, wherein the main valve body is provided with a containing cavity, the installation valve body is provided with an installation cavity, the driving mechanism is arranged in the installation cavity, the valve core comprises a valve core body and a valve core driving rod, the valve core body is arranged in the containing cavity, the overflowing through hole is arranged on the valve core body, the first end of the valve core driving rod is connected with the valve core body, and the second end of the valve core driving rod extends into the installation cavity and is connected with the driving mechanism.

Further, actuating mechanism includes main gear structure, and main gear structure includes connecting cylinder and toothed disc, and the toothed disc is connected with the outer wall of connecting cylinder, and the connecting cylinder cover is established on the case actuating lever, and wherein, the protrusion is provided with a plurality of spacing fixture blocks on the section of thick bamboo inner wall of connecting cylinder, forms the breach space between a plurality of spacing fixture blocks, and the case actuating lever stretches into in the breach space and with a plurality of spacing fixture block joint to make the case actuating lever rotate along with main gear structure synchronization under the drive of connecting cylinder.

Furthermore, the water valve also comprises two sealing glands and sealing rings, wherein the sealing glands are sleeved on the connecting cylinder, one sealing gland is positioned between the upper wall surface of the gear disc and the upper wall surface of the installation cavity, the other sealing gland is positioned between the lower wall surface of the gear disc and the lower wall surface of the installation cavity, and two sealing rings are respectively arranged on two axial sides of each sealing gland.

Furthermore, the valve body installation comprises an upper valve body installation cover and a lower valve body installation cover which are detachably connected, an installation cavity is formed between the upper valve body installation cover and the lower valve body installation cover, the driving mechanism further comprises a motor and a gear set, the motor is in driving connection with the input end of the gear set, and the output end of the gear set is meshed with the gear disc.

Furthermore, a positioning hole and a limiting groove are formed in the end face, away from one end of the valve core driving rod, of the valve core body, the limiting grooves are multiple, the limiting grooves are arranged at intervals around the circumferential direction of the positioning hole, the main valve body comprises a main valve body box and a main valve body cover, the main valve body cover is arranged on the main valve body box, a positioning column and a limiting table are arranged on the main valve body cover, the orientation of the positioning column protrudes towards the containing cavity and is spaced from the containing cavity, the positioning column extends into the positioning hole, and the limiting table selectively extends into one limiting groove.

By applying the technical scheme of the invention, a part of the water inlet pipe and/or the water outlet pipe extends into the containing cavity of the valve body to form the mounting pipe section, the axial first end of the sealing ring is sleeved on the mounting pipe section, and the end face of the axial second end of the sealing ring is fittingly attached to the valve core.

The installation mode of the sealing ring can effectively reduce the leakage amount of the valve core when the valve core rotates to control the opening or closing of the water valve, and the installation pipe section can effectively limit the sealing ring, so that the sealing ring is prevented from shifting under the action of the rotary friction force of the valve core in the rotation process of the valve core, the end face of the axial second end of the sealing ring is always attached to the outer wall surface of the valve core, liquid is effectively prevented from leaking from the joint of the sealing ring and the valve core, the sealing reliability between the valve body and the valve core is improved, the leakage of the water valve is avoided, the flow of the water valve can be accurately controlled, the water valve can be stably closed, and the working stability of the water valve is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a schematic structural view of a water valve according to an alternative embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating the internal construction of the water valve of FIG. 1;

FIG. 3 is a schematic diagram illustrating an assembled relationship of a valve element and a main valve body of the water valve of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the main valve body housing of the water valve of FIG. 3 with an inlet pipe and an outlet pipe;

FIG. 5 is a schematic diagram illustrating a configuration of a cartridge of the water valve of FIG. 1;

FIG. 6 shows a schematic view of the sealing ring of the water valve of FIG. 1;

FIG. 7 shows a schematic cross-sectional view of the seal ring of FIG. 6;

FIG. 8 is a schematic cross-sectional view of the main gear structure of the water valve of FIG. 1 fitted with a gland and seal ring;

FIG. 9 shows a front cross-sectional view of FIG. 8;

FIG. 10 shows a schematic view of the securing plate of the water valve of FIG. 1;

FIG. 11 is a schematic diagram illustrating the positioning of the drive mechanism of the water valve of FIG. 1 within the lower cover of the mounting valve body;

fig. 12 shows a schematic view of the main valve body cap of the water valve of fig. 1 with a positioning post and a stop.

Wherein the figures include the following reference numerals:

10. a valve body; 101. a main valve body; 102. installing a valve body; 103. installing an upper cover of the valve body; 104. installing a lower cover of the valve body; 105. a main valve body case; 106. a main valve body cover; 11. an accommodating chamber; 12. a water inlet pipe; 13. a water outlet pipe; 14. a clamping groove; 15. a mounting cavity; 16. a positioning column; 17. a limiting table; 20. a valve core; 21. an overcurrent through hole; 22. a valve core body; 23. a valve core driving rod; 24. positioning holes; 25. a limiting groove; 30. installing a pipe section; 40. a seal ring; 41. an annular neck; 50. a fixing sheet; 51. an assembly hole; 52. assembling the plate sections; 53. bending the plate section; 60. a drive mechanism; 61. a main gear structure; 611. a connecting cylinder; 612. a gear plate; 613. a limiting clamping block; 614. a gap space; 62. a motor; 63. a gear set; 70. a sealing gland; 80. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a water valve, aiming at solving the problem that in the prior art, because a sealing ring between a valve body and a valve core of the water valve is unreasonable in arrangement mode, the sealing between the valve body and the valve core is easy to lose efficacy, so that the water valve leaks or cannot be completely closed, and the working stability of the water valve is affected.

As shown in fig. 1 to 7, the water valve includes a valve body 10, a valve core 20 and a sealing ring 40, the valve body 10 has a containing cavity 11, the valve body 10 is further provided with a water inlet pipe 12 and a water outlet pipe 13 communicated with the containing cavity 11, at least a part of the valve core 20 is arranged in the containing cavity 11 and can rotate, the valve core 20 is provided with a through-flow hole 21 for communicating the water inlet pipe 12 and the water outlet pipe 13, a part of the water inlet pipe 12 and/or the water outlet pipe 13 extends into the containing cavity 11 to form an installation pipe section 30, an axial first end of the sealing ring 40 is sleeved on the installation pipe section 30, and an end face of an axial second end of the sealing ring 40 is fittingly.

Because a part of the water inlet pipe 12 and/or the water outlet pipe 13 extends into the accommodating cavity 11 of the valve body 10 to form the installation pipe section 30, the axial first end of the sealing ring 40 is sleeved on the installation pipe section 30, and the end surface of the axial second end of the sealing ring 40 is fittingly attached to the valve core 20.

The installation mode of the sealing ring 40 can effectively reduce the leakage amount of the valve core 20 when rotating to control the opening or closing of the water valve, because the installation pipe section 30 can effectively limit the sealing ring 40, the sealing ring 40 is prevented from shifting under the action of the rotating friction force of the valve core 20 in the rotating process of the valve core 20, the end face of the axial second end of the sealing ring 40 is always attached to the outer wall surface of the valve core 20, the leakage of liquid from the joint of the sealing ring 40 and the valve core 20 is effectively prevented, the sealing reliability between the valve body 10 and the valve core 20 is improved, the leakage of the water valve is avoided, the flow of the water valve can be accurately controlled, the water valve can be stably closed, and the working stability of the water valve is improved.

As shown in fig. 2, 3 and 10, in order to further improve the stability of the sealing ring 40 installed in the accommodating cavity 11, the water valve further includes a fixing piece 50, the fixing piece 50 is disposed in the accommodating cavity 11 and connected to the inner wall surface of the accommodating cavity 11, an assembly hole 51 is formed in the fixing piece 50, an annular clamping groove 41 clamped with the hole wall of the assembly hole 51 is formed in the outer wall surface of the sealing ring 40, and the sealing ring 40 is assembled with the fixing piece 50 through the annular clamping groove 41. Like this, thereby sealing ring 40 makes sealing ring 40 and stationary blade 50 joint steadily through the pore wall of ring groove 41 cladding pilot hole 51 to through the location to stationary blade 50, just can realize spacing to sealing ring 40.

As shown in fig. 4, the inner wall surface of the accommodating cavity 11 is provided with two clamping grooves 14 symmetrically arranged on both axial sides of the mounting pipe section 30, and the fixing piece 50 includes an assembling plate section 52 and two bent plate sections 53 respectively connected to both ends of the assembling plate section 52, wherein the assembling hole 51 is formed on the assembling plate section 52, and the two bent plate sections 53 are clamped in the two clamping grooves 14 in a one-to-one correspondence manner. In this way, the bent plate section 53 is clamped in the clamping groove 14, and the shape of the bent plate section 53 is the same as the shape adaptability of the clamping groove 14, and the groove wall of the clamping groove 14 can stop the bent plate section 53, so that the axial movement of the fixing plate 50 along the assembling hole 51 and the circumferential rotation around the assembling hole 51 are further limited.

As shown in fig. 4, the outer diameter of the installation tube section 30 is gradually reduced toward the valve cartridge 20. Thus, the mounting pipe section 30 is formed in a tapered cylindrical shape, which facilitates the installation of the sealing ring 40 on the mounting pipe section 30.

In the illustrated alternative embodiment of the present application, the installation pipe section 30 is one, and the installation pipe section 30 is formed by a portion of the inlet pipe 12 protruding into the receiving chamber 11. In this way, the installation pipe section 30 and the sealing ring 40 are arranged at the water inlet end of the water valve, namely, the position where leakage is most likely to occur, so that leakage of the water valve is avoided, the water valve is ensured to accurately control flow, and excessive rotation resistance of the valve core 20 caused by excessive sealing rings 40 can be avoided, so that the water valve can be smoothly opened or closed.

Of course, in an alternative embodiment of the present application, not shown, the mounting tube segment 30 may also be formed by the portion of the outlet pipe 13 that protrudes into the housing chamber 11; or two installation pipe sections 30 are provided, the two installation pipe sections 30 are respectively formed by the parts of the water inlet pipe 12 and the water outlet pipe 13 extending into the accommodating cavity 11, and each installation pipe section 30 is provided with a sealing ring 40.

As shown in fig. 1, 2, 3, 5 and 11, the water valve further includes a driving mechanism 60 for driving the valve plug 20 to rotate, the valve body 10 includes a main valve body 101 and an installation valve body 102 connected to each other, wherein the main valve body 101 has an accommodation cavity 11, the installation valve body 102 has an installation cavity 15, the driving mechanism 60 is disposed in the installation cavity 15, the valve plug 20 includes a valve plug body 22 and a valve plug driving rod 23, the valve plug body 22 is disposed in the accommodation cavity 11, an overflowing through hole 21 is formed in the valve plug body 22, a first end of the valve plug driving rod 23 is connected to the valve plug body 22, and a second end of the valve plug driving rod 23 extends into the installation cavity 15 and is connected to the driving mechanism 60. Like this, hold chamber 11 and installation cavity 15 and keep apart the setting, further avoided holding the liquid in the chamber 11 and entering into installation cavity 15 and influence the normal work of the components and parts in installation cavity 15, ensured that actuating mechanism 60 can drive actuating mechanism 60 steadily and rotate to smoothly realize opening or closing of water valve.

As shown in fig. 8 and 9, the driving mechanism 60 includes a main gear structure 61, the main gear structure 61 includes a connecting cylinder 611 and a gear plate 612, the gear plate 612 is connected to an outer wall surface of the connecting cylinder 611, the connecting cylinder 611 is sleeved on the valve core driving rod 23, wherein a plurality of limiting blocks 613 protrude from an inner wall of the connecting cylinder 611, a gap space 614 is formed between the limiting blocks 613, and the valve core driving rod 23 extends into the gap space 614 and is engaged with the limiting blocks 613, so that the valve core driving rod 23 is driven by the connecting cylinder 611 to rotate synchronously with the main gear structure 61.

As shown in fig. 8 and 9, in order to further prevent liquid outside the accommodating cavity 11 and the water valve from entering the mounting cavity 15, the water valve further includes two sealing glands 70 and sealing rings 80, wherein the sealing glands 70 are sleeved on the connecting cylinder 611, one sealing gland 70 is located between the gear disk 612 and the upper wall surface of the mounting cavity 15, the other sealing gland 70 is located between the gear disk 612 and the lower wall surface of the mounting cavity 15, and two axial sides of each sealing gland 70 are respectively provided with one sealing ring 80.

Optionally, the seal ring 80 is an O-ring seal.

As shown in fig. 1, 2 and 11, the mounting valve body 102 includes a mounting valve body upper cover 103 and a mounting valve body lower cover 104 which are detachably connected, a mounting cavity 15 is formed between the mounting valve body upper cover 103 and the mounting valve body lower cover 104, the driving mechanism 60 further includes a motor 62 and a gear set 63, wherein the motor 62 is in driving connection with an input end of the gear set 63, and an output end of the gear set 63 is meshed with the gear disc 612. The upper valve body cover 103 and the lower valve body cover 104 are detachably connected to facilitate maintenance and replacement of the components in the mounting cavity 15, and the motor 62 and gear set 63 are provided to further ensure stable rotation of the main gear structure 61.

Alternatively, the motor 62 is a dc motor.

As shown in fig. 5 and 12, a positioning hole 24 and a plurality of limiting grooves 25 are provided on an end surface of the valve body 22 away from one end of the valve driving rod 23, the plurality of limiting grooves 25 are provided at intervals around the circumference of the positioning hole 24, the main valve body 101 includes a main valve body case 105 and a main valve body cover 106 covering the main valve body case 105, and the main valve body cover 106 is provided with a positioning post 16 and a limiting table 17 protruding toward the accommodating chamber 11 and spaced apart from each other, wherein the positioning post 16 extends into the positioning hole 24, and the limiting table 17 selectively extends into one of the limiting grooves 25. Thus, the positioning column 16 extends into the positioning hole 24, so that the main valve body cover 106 plays a role in guiding the rotation of the valve core 20, and when the valve core 20 rotates, the limiting groove 25 can also stop the limiting table 17, so that the radian of the limiting groove 25 determines the rotation angle of the valve core 20. Optionally, the radian of the arc-shaped limiting groove 25 is greater than or equal to 60 degrees and less than or equal to 180 degrees.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water valve, comprising:

the valve body (10), the said valve body (10) holds the cavity (11), still there are inlet pipes (12) and outlet pipes (13) communicated with said cavity (11) on the said valve body (10);

at least one part of the valve core (20) is arranged in the accommodating cavity (11) and can rotate, and an overflowing through hole (21) for communicating the water inlet pipe (12) with the water outlet pipe (13) is formed in the valve core (20);

a part of the water inlet pipe (12) and/or the water outlet pipe (13) extends into the accommodating cavity (11) to form a mounting pipe section (30);

the first axial end of the sealing ring (40) is sleeved on the mounting pipe section (30), and the end face of the second axial end of the sealing ring (40) is fittingly attached to the valve core (20).

2. The water valve according to claim 1, further comprising a fixing piece (50), wherein the fixing piece (50) is arranged in the accommodating cavity (11) and connected with the inner wall surface of the accommodating cavity (11), an assembly hole (51) is formed in the fixing piece (50), an annular clamping groove (41) clamped with the wall surface of the assembly hole (51) is formed in the outer wall surface of the sealing ring (40), and the sealing ring (40) is assembled with the fixing piece (50) through the annular clamping groove (41).

3. The water valve as claimed in claim 2, wherein the inner wall surface of the accommodating cavity (11) is provided with two clamping grooves (14) symmetrically arranged on two axial sides of the mounting pipe section (30), the fixing piece (50) comprises an assembling plate section (52) and two bent plate sections (53) respectively connected with two ends of the assembling plate section (52), wherein the assembling hole (51) is formed in the assembling plate section (52), and the two bent plate sections (53) are clamped in the two clamping grooves (14) in a one-to-one correspondence manner.

4. The water valve of claim 1, wherein the outer diameter of the mounting tube segment (30) tapers toward the valve element (20).

5. Water valve according to any of claims 1-4, wherein the mounting tube section (30) is one and the mounting tube section (30) is formed by the part of the inlet tube (12) that protrudes into the receiving chamber (11).

6. The water valve of claim 1, further comprising a drive mechanism (60) for driving rotation of the valve element (20), the valve body (10) comprises a main valve body (101) and a mounting valve body (102) which are connected, wherein the main valve body (101) has the receiving chamber (11), the mounting valve body (102) has a mounting chamber (15), the driving mechanism (60) is arranged in the mounting cavity (15), the valve core (20) comprises a valve core body (22) and a valve core driving rod (23), the valve core body (22) is arranged in the accommodating cavity (11), the overflowing through hole (21) is arranged on the valve core body (22), the first end of the valve core driving rod (23) is connected with the valve core body (22), the second end of the valve core driving rod (23) extends into the installation cavity (15) and is connected with the driving mechanism (60).

7. The water valve according to claim 6, wherein the driving mechanism (60) comprises a main gear structure (61), the main gear structure (61) comprises a connecting cylinder (611) and a gear plate (612), the gear plate (612) is connected with an outer wall surface of the connecting cylinder (611), the connecting cylinder (611) is sleeved on the valve core driving rod (23), wherein a plurality of limiting blocks (613) are convexly arranged on an inner wall of the connecting cylinder (611), a gap space (614) is formed between the limiting blocks (613), and the valve core driving rod (23) extends into the gap space (614) and is clamped with the limiting blocks (613), so that the valve core driving rod (23) is driven by the connecting cylinder (611) to rotate synchronously with the main gear structure (61).

8. The water valve as claimed in claim 7, further comprising two sealing glands (70) and sealing rings (80), wherein the sealing glands (70) are sleeved on the connecting cylinder (611), one sealing gland (70) is located between the gear disc (612) and the upper wall surface of the installation cavity (15), the other sealing gland (70) is located between the gear disc (612) and the lower wall surface of the installation cavity (15), and one sealing ring (80) is respectively arranged on two axial sides of each sealing gland (70).

9. The water valve of claim 7, wherein the mounting valve body (102) comprises a mounting valve body upper cover (103) and a mounting valve body lower cover (104) that are detachably connected, the mounting cavity (15) is formed between the mounting valve body upper cover (103) and the mounting valve body lower cover (104), and the driving mechanism (60) further comprises a motor (62) and a gear set (63), wherein the motor (62) is in driving connection with an input end of the gear set (63), and an output end of the gear set (63) is engaged with the gear disc (612).

10. The water valve according to claim 6, wherein an end surface of the valve element body (22) away from the end of the valve element driving rod (23) is provided with a positioning hole (24) and a plurality of limiting grooves (25), the plurality of limiting grooves (25) are arranged at intervals around the circumference of the positioning hole (24), the main valve body (101) comprises a main valve body box (105) and a main valve body cover (106) covering the main valve body box (105), the main valve body cover (106) is provided with a positioning column (16) and a limiting platform (17) which protrude towards the accommodating cavity (11) and are spaced apart from each other, wherein the positioning column (16) extends into the positioning hole (24), and the limiting platform (17) selectively extends into one of the limiting grooves (25).