CN219911822U - Water valve device with pressure relief function - Google Patents

Abstract

The utility model discloses a water valve device with a pressure relief function, which comprises a valve body, a valve core, a handle assembly and a pressure relief assembly, wherein a valve cavity is arranged in the valve body, the valve body is provided with a first water gap and a second water gap which are both communicated with the valve cavity, the valve core is movably arranged in the valve cavity, the handle assembly is rotatably arranged on the valve body, the handle assembly is connected with the valve core so as to drive the valve core to move in the valve cavity, the handle assembly is internally provided with the pressure relief channel, the pressure relief channel is communicated with the valve cavity, the handle assembly is provided with a pressure relief opening communicated with the pressure relief channel, the pressure relief assembly is arranged in the handle assembly and is positioned in the pressure relief channel, the pressure relief assembly enables the pressure relief channel to be communicated when the liquid pressure in the valve cavity is higher than a hydraulic threshold, and liquid is discharged from the pressure relief opening, wherein an included angle exists between the opening direction of the pressure relief opening and the rotating axial direction of the handle assembly.

Description

Water valve device with pressure relief function

Technical Field

The utility model relates to the technical field of valve equipment, in particular to a water valve device with a pressure relief function.

Background

The existing water valve device is used for being connected with a water pipe, and a user can drive an internal valve core to move through operating a handle assembly on the water valve device, so that the on-off state of a water delivery channel in the water valve device is switched.

In the operation process, the liquid pressure in the water valve device is possibly caused to change, the damage of the water valve is easily caused by overlarge liquid pressure or the valve core is not easily driven to move by a user, so that the pressure relief assembly is generally arranged on the valve body of the water valve device, when the liquid pressure is overlarge, the pressure relief assembly can partially relieve internal liquid so as to reduce the internal liquid pressure, then, the pressure relief assembly is arranged on the valve body, the whole volume of the water valve device is larger, and if the pressure relief assembly is arranged at other positions, the situation that the internal liquid is splashed to the user body when the internal liquid is discharged exists is temporarily not caused, and the problem can be solved.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the water valve device with the pressure relief function is space-saving and convenient and reliable to use.

According to an embodiment of the first aspect of the present utility model, a water valve device with a pressure relief function includes: the valve body is internally provided with a valve cavity, and is provided with a first water gap and a second water gap which are both communicated with the valve cavity; the valve core is movably arranged in the valve cavity; the handle assembly is rotationally arranged on the valve body and connected with the valve core so as to drive the valve core to move in the valve cavity, a pressure release channel is arranged in the handle assembly and communicated with the valve cavity, and a pressure release opening communicated with the pressure release channel is arranged in the handle assembly; the pressure relief assembly is arranged in the handle assembly and is positioned in the pressure relief channel, the pressure relief assembly blocks the pressure relief channel, and when the liquid pressure in the valve cavity is higher than a hydraulic threshold value, the pressure relief assembly enables the pressure relief channel to be conducted, and liquid is discharged from the pressure relief opening; wherein, there is the contained angle between the opening direction of pressure release mouth and the rotation axial of handle subassembly.

The water valve device with the pressure relief function has the following advantages:

according to the water valve device with the pressure relief function, the valve body can be connected with the water pipe through the first water port or the second water port, a user can drive the valve core to move in the valve cavity by utilizing the handle assembly, so that the size or the on-off of water flow in the valve cavity is adjusted, the pressure relief assembly is arranged in the handle assembly, the pressure relief assembly blocks the pressure relief channel under normal use, when the liquid pressure in the valve cavity is higher than a hydraulic threshold value, the pressure relief assembly enables the pressure relief channel to be conducted, liquid is discharged from the pressure relief opening, so that the liquid pressure in the valve cavity is relieved, the valve core is enabled to move stably, and in addition, under normal circumstances, the user rotates the handle assembly circumferentially, so that the user is generally located on the rotating shaft of the handle assembly, therefore, the design sets the opening direction of the pressure relief opening to be an included angle with the rotating shaft of the handle assembly, and therefore liquid can not be sprayed on the body of the user when the liquid is discharged from the pressure relief opening, the water valve device is reduced, the space is saved, and the use is convenient and reliable.

According to some embodiments of the utility model, the pressure relief vent is open in a direction radially co-directional with the rotational axis of the handle assembly.

According to some embodiments of the utility model, the handle assembly comprises a rotating seat and a handle member, the rotating seat is rotatably arranged on the valve body, the handle member is connected with the rotating seat, an included angle exists between the extending direction of the handle member and the rotating axial direction of the rotating seat, the pressure release channel is arranged in the rotating seat and the handle member, and the pressure release opening is positioned at the end part of the handle member, which is far away from the rotating seat.

According to some embodiments of the utility model, the pressure relief assembly is disposed within the handle member.

According to some embodiments of the utility model, the pressure relief assembly comprises a blocking piece and a resetting piece, the handle assembly is provided with a bump on the inner side wall of the pressure relief channel, the bump is provided with a transfer opening which is respectively communicated with the valve cavity and the pressure relief opening through the pressure relief channel, the resetting piece is arranged on the handle assembly, the resetting piece is connected with the blocking piece, the resetting piece drives the blocking piece to press against the bump to enable the transfer opening to be closed, and when the liquid pressure in the valve cavity is higher than a hydraulic threshold value, the liquid can drive the blocking piece to move away from the bump to enable the transfer opening to be opened.

According to some embodiments of the utility model, a rotation limiting structure is provided between the valve body and the handle assembly, the rotation limiting structure being used to constrain the range of rotation angles of the handle assembly relative to the valve body.

According to some embodiments of the utility model, the handle assembly is partially rotated and inserted into the valve body, the rotation limiting structure comprises a sliding block and an arc-shaped sliding groove, the arc-shaped sliding groove is circumferentially arranged on the outer side wall of the handle assembly along the rotation axis of the handle assembly, the sliding block is arranged on the inner side wall of the valve body, and the sliding block is slidably arranged in the arc-shaped sliding groove to restrict the rotation angle range of the handle assembly relative to the valve body.

According to some embodiments of the utility model, an elastic sealing ring is arranged between the outer side wall of the handle assembly and the inner side wall of the valve body, the sliding block comprises a stud, the stud penetrates through the valve body, one end of the stud protrudes out of the inner side wall of the valve body, and the elastic sealing ring is positioned in front of the sliding block in the penetrating direction.

According to some embodiments of the utility model, the valve body includes an upper valve housing and a lower valve housing, the first water port is disposed in the upper valve housing, the second water port, the handle assembly, and the valve spool are disposed in the lower valve housing, and the upper valve housing and the lower valve housing are detachably connected to define the valve chamber.

According to some embodiments of the utility model, a first mounting bump is disposed on an outer side wall of the upper valve casing, a second mounting bump is disposed on an outer side wall of the lower valve casing, a mounting groove is formed in a side surface of the first mounting bump, a nut is disposed in the mounting groove, a first mounting hole communicated with the mounting groove is formed in an end surface of the first mounting bump close to the second mounting bump, a second mounting hole penetrating through an upper end surface and a lower end surface is formed in the second mounting bump, and a bolt can sequentially penetrate through the second mounting hole and the first mounting hole and is connected with the nut so that the upper valve casing and the lower valve casing can be detachably connected.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of one embodiment of a water valve assembly of the present utility model;

FIG. 2 is a cross-sectional view of the internal structure of one embodiment of the water valve assembly of the present utility model;

FIG. 3 is a cross-sectional view of a rotation limiting structure;

fig. 4 is an exploded view of one embodiment of the water valve assembly of the present utility model.

Reference numerals:

a valve body 100; a valve chamber 110; a first nozzle 120; a second nozzle 130; an upper valve housing 140; a first mounting bump 141; a first mounting hole 142; a seating groove 143; a nut 144; a lower valve housing 150; a second mounting bump 151; a second mounting hole 152; a valve core 200; a handle assembly 300; a pressure relief channel 310; pressure relief vent 320; a rotating base 330; a handle member 340; a bump 350; a pressure relief assembly 400; a closure 410; a reset member 420; a rotation limiting structure 500; a slider 510; an arc chute 520; an elastic sealing ring 600.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically 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.

As shown in fig. 1-4, a water valve device with a pressure relief function according to an embodiment of the present utility model includes a valve body 100, a valve core 200, a handle assembly 300 and a pressure relief assembly 400, wherein the valve body 100 is provided with a valve cavity 110, the valve body 100 is provided with a first water port 120 and a second water port 130 both communicating with the valve cavity 110, the valve core 200 is movably disposed in the valve cavity 110, the handle assembly 300 is rotatably disposed on the valve body 100, and the handle assembly 300 is connected with the valve core 200 so as to drive the valve core 200 to move in the valve cavity 110, the handle assembly 300 is provided with a pressure relief channel 310, the pressure relief channel 310 is communicated with the valve cavity 110, the handle assembly 300 is provided with a pressure relief opening 320 communicating with the pressure relief channel 310, the pressure relief assembly 400 is disposed in the handle assembly 300 and is located in the pressure relief channel 310, the pressure relief assembly 400 enables the pressure relief channel 310 to be conducted, and liquid is discharged from the pressure relief opening 320 when the liquid pressure in the valve cavity 110 is higher than a hydraulic threshold, wherein an included angle exists between an opening direction of the pressure relief opening 320 and a rotation axis of the handle assembly 300.

As shown in fig. 1 and 2, the valve body 100 may have a tubular shape or other shapes, and the first and second water ports 120 and 130 may be respectively located at both ends of the valve body 100, and the first and second water ports 120 and 130 may be provided with an internal thread structure or an external thread structure to be connected with a water pipe.

As shown in fig. 2 and 4, the valve core 200 may be integrally disposed on the handle assembly 300, and a water through hole is disposed on the valve core 200, and when the water through hole is communicated with the valve cavity 110 during the rotation of the valve core 200 in the valve cavity 110, water flows from the first water hole 120 to the second water hole 130, and when the wall surface of the valve core 200 shields the flow passage of the valve cavity 110, water flows from the first water hole 120 to the second water hole 130. In some embodiments of the utility model, the cartridge 200 may also be connected separately to the handle assembly 300.

According to the water valve device with the pressure relief function, the valve body 100 can be connected with a water pipe through the first water port 120 or the second water port 130, a user can drive the valve core 200 to move in the valve cavity 110 by utilizing the handle assembly 300, so that the size or the on-off state of water flow in the valve cavity 110 can be adjusted, the pressure relief assembly 400 is arranged in the handle assembly 300, under normal use, the pressure relief assembly 400 blocks the pressure relief channel 310, when the liquid pressure in the valve cavity 110 is higher than a hydraulic threshold value, the pressure relief assembly 400 enables the pressure relief channel 310 to be conducted, and liquid is discharged from the pressure relief opening 320, so that the liquid pressure in the valve cavity 110 is relieved, the valve core 200 can move stably, and in general, the user circumferentially rotates the handle assembly 300, the user is generally positioned on the rotating shaft of the handle assembly 300, and therefore, the design sets the opening direction of the pressure relief opening 320 to be an included angle with the rotating shaft of the handle assembly 300, so that when the liquid is discharged from the pressure relief opening 320, the liquid can not be sprayed on the body of the user, the water valve is reduced, the volume of the device is saved, the space is saved, and the use is convenient and reliable.

In some embodiments of the present utility model, as shown in fig. 2, the opening direction of the pressure relief opening 320 is in the same radial direction as the rotation axis of the handle assembly 300, that is, the included angle between the opening direction of the pressure relief opening 320 and the rotation axis of the handle assembly 300 is 90 °, and of course, the included angle between the opening direction of the pressure relief opening 320 and the rotation axis of the handle assembly 300 may be 80 °, 120 ° or even 150 °, so that the opening direction of the pressure relief opening 320 is not easy to be opposite to the user, and the liquid is not sprayed onto the user during the drainage, which is convenient and reliable to use.

In some embodiments of the present utility model, as shown in fig. 1, 2 and 4, the handle assembly 300 includes a rotating seat 330 and a handle member 340, the rotating seat 330 is rotatably disposed on the valve body 100, the handle member 340 is connected to the rotating seat 330, an included angle exists between an extending direction of the handle member 340 and a rotating axis direction of the rotating seat 330, a pressure release channel 310 is opened in the rotating seat 330 and the handle member 340, and the pressure release opening 320 is located at an end of the handle member 340 facing away from the rotating seat 330.

The rotating seat 330 is connected with the valve core 200, when the handle piece 340 drives the rotating seat 330 to rotate relative to the valve body 100, the rotating seat 330 drives the valve core 200 to rotate, the rotating seat 330 can be circular, square or in other irregular shapes, the handle piece 340 can be arranged on the side wall of the rotating seat 330, specifically, an included angle between the extending direction of the handle piece 340 and the rotating axial direction of the rotating seat 330 can be 90 degrees, or can be 80 degrees, 120 degrees or even 150 degrees, the pressure release channel 310 is communicated in the rotating seat 330 and the handle piece 340, when the rotating seat 330 is connected with the valve body 100, one end of the pressure release channel 310 is communicated with the valve cavity 110, and the other end of the pressure release channel 310 is communicated with the pressure release opening 320 at the end part of the handle piece 340, which is away from the rotating seat 330, so that the pressure release channel 310 and the pressure release assembly 400 are arranged in the inner space of the handle assembly 300 are reasonably utilized, and the volume of the water valve device is reduced.

In some embodiments of the present utility model, as shown in FIG. 2, the pressure relief assembly 400 may be disposed within the handle member 340, and the volume of the handle member 340 may be relatively increased to facilitate grasping by a user and to facilitate placement of the pressure relief assembly 400.

In some embodiments of the present utility model, as shown in fig. 2, the pressure relief assembly 400 includes a blocking member 410 and a reset member 420, the handle assembly 300 is provided with a bump 350 on an inner sidewall of the pressure relief channel 310, the bump 350 is provided with a transfer port that is respectively communicated with the valve cavity 110 and the pressure relief port 320 through the pressure relief channel 310, the reset member 420 is provided on the handle assembly 300, the reset member 420 is connected with the blocking member 410, the reset member 420 drives the blocking member 410 to press against the bump 350 so as to close the transfer port, and when the liquid pressure in the valve cavity 110 is higher than the hydraulic threshold, the liquid can drive the blocking member 410 to move away from the bump 350 so as to open the transfer port.

The reset piece 420 may be a spring, a rubber pad or a balancing weight, and the reset piece 420 applies force on the blocking piece, so as to drive the blocking piece to abut against the wall surface of the bump 350, the blocking piece blocks the middle rotating opening, specifically, the bump 350 may be a convex ring arranged on the inner side wall of the pressure release channel 310, the middle rotating opening is located in the middle of the convex ring, and the blocking piece abuts against the end wall of the convex ring.

As shown in fig. 2, when the pressure of the liquid in the valve chamber 110 is too high, the pressure of the liquid acting on the blocking member is larger than the pressure of the liquid acting on the blocking member by the restoring member 420, the blocking member moves away from the bump 350 to open the transfer port, the liquid flows out of the transfer port and then leaks from the pressure release port 320, the blocking member can be selected from conventional rubber or resin materials and made of a relatively flat end surface for pressing against the bump 350, so that the blocking member is relatively tight when blocked, and the liquid is prevented from passing through the transfer port.

In some embodiments of the present utility model, a rotation limiting structure 500 is provided between the valve body 100 and the handle assembly 300, the rotation limiting structure 500 is used to restrict a rotation angle range of the handle assembly 300 with respect to the valve body 100, so that the handle assembly 300 can be prevented from being excessively deflected with respect to the valve body 100, and a user can more easily know a rotation direction required to close, open or adjust a water flow by limiting a rotation position of the handle assembly 300.

In some embodiments of the present utility model, as shown in fig. 3, the handle assembly 300 is partially rotated through the valve body 100, the rotation limiting structure 500 includes a slider 510 and an arc chute 520, the arc chute 520 is circumferentially disposed on the outer sidewall of the handle assembly 300 along the rotation axis of the handle assembly 300, the slider 510 is disposed on the inner sidewall of the valve body 100, and the slider 510 is slidably disposed in the arc chute 520 to limit the rotation angle range of the handle assembly 300 relative to the valve body 100.

The end of the arc chute 520 can limit the sliding of the slider 510, so as to plan the rotation angle range of the handle assembly 300 relative to the valve body 100, and the arc chute has a simple structure and smooth movement.

In some embodiments of the present utility model, as shown in fig. 2, an elastic sealing ring 600 is disposed between an outer sidewall of the handle assembly 300 and an inner sidewall of the valve body 100, the slider 510 includes a stud, the stud is disposed through the valve body 100 and one end of the stud protrudes from the inner sidewall of the valve body 100, and the elastic sealing ring 600 is located in front of the slider 510 in the penetrating direction.

The elastic sealing ring 600 can be made of rubber or elastic resin, and because the elastic sealing ring 600 is located in front of the sliding block 510 in the penetrating direction, the elastic sealing ring 600 is firstly blocked for the liquid in the valve cavity 110, so that the liquid is not easy to flow out from between the outer side wall of the handle assembly 300 and the inner side wall of the valve body 100, the stud can penetrate from the outer side wall of the valve body 100, the stud is connected with the valve body 100 through a threaded structure, one end of the stud protrudes out of the inner side wall of the valve body 100 to form the sliding block 510, and the stud can also serve as a connecting part of the handle assembly 300 and the valve body 100, so that the handle assembly 300 is limited to be separated from the valve body 100, and the disassembly and the assembly are simple and convenient.

In some embodiments of the present utility model, the valve body 100 includes an upper valve housing 140 and a lower valve housing 150, the first water port 120 is disposed in the upper valve housing 140, and the second water port 130, the handle assembly 300, and the valve cartridge 200 are disposed in the lower valve housing 150, and the upper valve housing 140 and the lower valve housing 150 are detachably coupled to define the valve chamber 110.

The upper valve housing 140 may be pre-installed in a water heater, a washing machine, a water purifier, etc., and in the subsequent installation process, a worker connects the lower valve housing 150 with the upper valve housing 140 according to actual conditions, so that the use is flexible and convenient, and in particular, a flow sensor, etc. may be further provided on the upper valve housing 140.

In some embodiments of the present utility model, as shown in fig. 3 and 4, a first mounting protrusion 141 is provided on an outer sidewall of the upper valve housing 140, a second mounting protrusion 151 is provided on an outer sidewall of the lower valve housing 150, a seating groove 143 is provided at a side surface of the first mounting protrusion 141, a nut 144 is provided in the seating groove 143, a first mounting hole 142 communicating with the seating groove 143 is provided at an end surface of the first mounting protrusion 141 adjacent to the second mounting protrusion 151, a second mounting hole 152 penetrating through upper and lower end surfaces is provided at the second mounting protrusion 151, and a bolt can sequentially pass through the second mounting hole 152 and the first mounting hole 142 and be coupled with the nut 144 to detachably couple the upper valve housing 140 and the lower valve housing 150.

The valve port of the upper valve housing 140 and the valve port of the lower valve housing 150 are butted with each other to define the valve cavity 110, and the first mounting protrusion 141 and the second mounting protrusion 151 are respectively two and are respectively positioned at both sides after the valve port of the upper valve housing 140 and the valve port of the lower valve housing 150 are butted with each other, when mounting, the nut 144 is firstly arranged in the mounting groove 143, then the bolt can sequentially pass through the second mounting hole 152 and the first mounting hole 142, the bolt is connected with the nut 144, and a user can apply force to the nut 144 at the notch of the mounting groove 143 to fix, thereby being convenient to mount and dismount, and being simple and convenient to use.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A water valve device with pressure relief function, comprising:

the valve body is internally provided with a valve cavity, and is provided with a first water gap and a second water gap which are both communicated with the valve cavity;

the valve core is movably arranged in the valve cavity;

the handle assembly is rotationally arranged on the valve body and connected with the valve core so as to drive the valve core to move in the valve cavity, a pressure release channel is arranged in the handle assembly and communicated with the valve cavity, and a pressure release opening communicated with the pressure release channel is arranged in the handle assembly;

the pressure relief assembly is arranged in the handle assembly and is positioned in the pressure relief channel, the pressure relief assembly blocks the pressure relief channel, and when the liquid pressure in the valve cavity is higher than a hydraulic threshold value, the pressure relief assembly enables the pressure relief channel to be conducted, and liquid is discharged from the pressure relief opening;

wherein, there is the contained angle between the opening direction of pressure release mouth and the rotation axial of handle subassembly.

2. The water valve device with pressure relief function according to claim 1, wherein: the opening direction of the pressure relief opening is in the same radial direction as the rotating shaft of the handle assembly.

3. The water valve device with pressure relief function according to claim 1, wherein: the handle assembly comprises a rotating seat and a handle piece, the rotating seat is rotationally arranged on the valve body, the handle piece is connected with the rotating seat, an included angle exists between the extending direction of the handle piece and the rotating axial direction of the rotating seat, the pressure release channel is formed in the rotating seat and the handle piece, and the pressure release opening is formed in the end portion of the handle piece, which is away from the rotating seat.

4. A water valve assembly with pressure relief as defined in claim 3, wherein: the pressure relief assembly is disposed within the handle member.

5. The water valve device with pressure relief function according to claim 1, wherein: the pressure relief assembly comprises a plugging piece and a reset piece, wherein the handle assembly is provided with a protruding block on the inner side wall of the pressure relief channel, the protruding block is provided with a transfer opening which is respectively communicated with the valve cavity and the pressure relief opening through the pressure relief channel, the reset piece is arranged on the handle assembly and connected with the plugging piece, the reset piece drives the plugging piece to prop against the protruding block so that the transfer opening is closed, and when the liquid pressure in the valve cavity is higher than a hydraulic threshold value, liquid can drive the plugging piece to deviate from the protruding block so that the transfer opening is opened.

6. The water valve device with pressure relief function according to claim 1, wherein: and a rotation limiting structure is arranged between the valve body and the handle assembly and is used for limiting the rotation angle range of the handle assembly relative to the valve body.

7. The water valve assembly with pressure relief function of claim 6, wherein: the handle assembly is partially rotated and penetrates through the valve body, the rotation limiting structure comprises a sliding block and an arc sliding groove, the arc sliding groove is circumferentially arranged on the outer side wall of the handle assembly along the rotation axis of the handle assembly, the sliding block is arranged on the inner side wall of the valve body, and the sliding block is slidably arranged in the arc sliding groove to restrain the handle assembly relative to the rotation angle range of the valve body.

8. The water valve assembly with pressure relief function of claim 7, wherein: an elastic sealing ring is arranged between the outer side wall of the handle assembly and the inner side wall of the valve body, the sliding block comprises a stud, the stud penetrates through the valve body, one end of the stud protrudes out of the inner side wall of the valve body, and in the penetrating direction, the elastic sealing ring is located in front of the sliding block.

9. The water valve device with pressure relief function according to claim 1, wherein: the valve body comprises an upper valve casing and a lower valve casing, the first water gap is formed in the upper valve casing, the second water gap, the handle assembly and the valve core are all arranged in the lower valve casing, and the upper valve casing and the lower valve casing are detachably connected to define the valve cavity.

10. The water valve assembly with pressure relief function of claim 9, wherein: be provided with first installation lug on the lateral wall of last valve casing, be provided with the second installation lug on the lateral wall of lower valve casing, the mounting groove has been seted up to the side of first installation lug, be provided with the nut in the mounting groove, first installation lug is close to the terminal surface of second installation lug is provided with the intercommunication the first mounting hole of mounting groove, be provided with the second mounting hole that runs through up-and-down terminal surface on the second installation lug, the bolt can pass in proper order the second mounting hole with first mounting hole and with the nut is connected so that go up valve casing with lower valve casing detachably connects.