CN217422281U - Explosion-proof water outlet control device - Google Patents

Abstract

The utility model discloses an explosion-proof water outlet control device, which comprises a valve body with a valve cavity, a valve core detachably arranged in the valve cavity and a base detachably and fixedly arranged in the valve cavity, wherein the base is provided with a water inlet cavity and a water outlet cavity, the valve body is provided with a water inlet channel communicated with the water inlet cavity and a water outlet channel communicated with the water outlet cavity, the valve core is provided with a communication channel communicated with the water inlet cavity and the water outlet cavity, the valve core can control the connection or disconnection of the water inlet cavity and the water outlet cavity, the cavity wall of the water inlet cavity is provided with a first pressure relief part, the pressure born by the first pressure relief part is smaller than the pressure born by a valve body and smaller than the pressure born by the valve core, so that when water in the water inlet cavity is frozen at low temperature, the first pressure relief part can be firstly broken, the water in the water inlet cavity can be discharged out of the valve cavity through the first pressure relief part, and the burst of the valve core or the valve body or a pipeline system connected with the valve body is avoided, the valve body or the valve core or the pipeline system connected with the valve body is not required to be replaced, the maintenance is convenient, and the maintenance cost is low.

Description

Explosion-proof water outlet control device

Technical Field

The utility model relates to a bathroom technical field especially relates to an explosion-proof play water control device.

Background

The water outlet control valve of the existing shower device generally comprises a valve body and a valve core, wherein the valve body is provided with a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are controlled to be communicated or disconnected by operating the valve core. In winter in the north or at low temperature, water in the water outlet control valve can freeze to lead to the volume increase, and then control valve frost crack, cause the valve body or case directly can't use, some even lead to the pipeline that is connected with water outlet control valve also frost crack, in case this kind of condition appears, the user just needs to ask professional to maintain, change valve body or inside case usually or need all change whole water outlet control valve, it is inconvenient to maintain, and the maintenance cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model provides an explosion-proof water outlet control device for solving the problems.

In order to achieve the above object, the utility model adopts the following technical scheme: an explosion-proof water outlet control device comprises a valve body with a valve cavity, a valve core detachably arranged in the valve cavity and a base detachably and fixedly arranged in the valve cavity, wherein the base is provided with a water inlet cavity and a water outlet cavity; after the first pressure relief position is broken, water in the water inlet cavity can be discharged out of the valve cavity through the first pressure relief position.

In a preferred embodiment, the cavity wall of the water outlet cavity is provided with a second pressure relief part, and the pressure which can be borne by the second pressure relief part is smaller than the pressure which can be borne by the valve body and smaller than the pressure which can be borne by the valve core; after the second pressure relief part is broken, water in the water outlet cavity can be discharged out of the valve cavity through the second pressure relief part.

In a preferred embodiment, the valve body includes a first body and a second body detachably connected to the first body, the second body and the first body enclose to form the valve chamber, the base is disposed in the first body, a bottom surface of the base abuts against the first body, and the second body is fixedly connected to the first body and presses the valve core against a top surface of the base.

In a preferred embodiment, the water inlet channel and the water outlet channel are both arranged on the first body, the water inlet cavity penetrates through the top surface and the bottom surface of the base, the water outlet cavity penetrates through the top surface and the bottom surface of the base, the water inlet channel is hermetically communicated with an inlet of the water inlet cavity, an outlet of the water inlet cavity can be hermetically communicated with an inlet of the communicating channel, an outlet of the communicating channel can be hermetically communicated with an inlet of the water outlet cavity, and an outlet of the water outlet cavity is hermetically communicated with the water outlet channel.

In a preferred embodiment, the base is provided with a plurality of water inlet cavities and a water outlet cavity, the number of the water inlet channels is matched with that of the water inlet cavities, each water inlet cavity is communicated with each water inlet channel in a one-to-one correspondence mode, the valve core can control the water outlet cavity to be communicated with any one or more of the water inlet cavities, or control the water outlet cavity to be not communicated with each water inlet cavity;

or the base is provided with a water inlet cavity and a plurality of water outlet cavities, the number of the water outlet channels is matched with that of the water outlet cavities, each water outlet cavity is communicated with each water outlet channel in a one-to-one correspondence manner, and the valve core can control the water inlet cavity to be communicated with each water outlet cavity in a switching manner or control the water inlet cavity to be not communicated with each water outlet cavity;

or the base is provided with a plurality of water inlet cavities and a plurality of water outlet cavities, the number of the water inlet channels is matched with that of the water inlet cavities, the number of the water outlet channels is matched with that of the water outlet cavities, the water inlet cavities are respectively communicated with the water inlet channels in a one-to-one correspondence manner, the water outlet cavities are respectively communicated with the water outlet channels in a one-to-one correspondence manner, the valve core can control any one or more water outlet cavities to be communicated with any one or more water inlet cavities, or control all the water outlet cavities to be not communicated with all the water inlet cavities.

In a preferred embodiment, the valve core comprises a fixed part fixed relative to the valve body and a movable part rotatably arranged on the fixed part, the movable part is provided with a valve rod, the valve rod extends out of the valve cavity for driving, and the movable part is rotated to control the connection or disconnection of the water inlet cavity and the water outlet cavity;

or the valve core is rotatably arranged in the valve cavity and provided with a valve rod, the valve rod extends out of the valve cavity to be driven, and the valve core is rotated to control the connection or disconnection of the water inlet cavity and the water outlet cavity.

In a preferred embodiment, the wall thickness of the first pressure relief portion is smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve core, and/or the internal stress of the first pressure relief portion is larger than the internal stress of the valve body and larger than the internal stress of the valve core, and/or the strength of the material of the base is smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve core, so that the pressure that the first pressure relief portion can bear is smaller than the pressure that the valve body can bear and smaller than the pressure that the valve core can bear.

In a preferred embodiment, the internal stress at the first pressure relief is increased by providing a surface with a certain radian and/or a sharp corner formed between at least two surfaces at the first pressure relief.

In a preferred embodiment, the wall thickness of the second pressure relief portion is smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve element, and/or the internal stress of the second pressure relief portion is larger than the internal stress of the valve body and larger than the internal stress of the valve element, and/or the strength of the material of the base is smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve element, so that the pressure that the second pressure relief portion can bear is smaller than the pressure that the valve body can bear and smaller than the pressure that the valve element can bear.

In a preferred embodiment, the internal stress at the second pressure relief is increased by providing a surface with a certain curvature and/or a sharp corner formed between at least two surfaces at the second pressure relief.

In a preferred embodiment, the wall thickness of the second pressure relief part is smaller than the wall thickness of the cavity wall at other positions of the water outlet cavity.

In a preferred embodiment, the wall thickness of the first pressure relief part is smaller than the wall thickness of the cavity wall at other positions of the water inlet cavity.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model has the advantages of simple integral structure, through detachably fixed mounting has the base in the valve pocket, the base have with the intake antrum of inhalant canal intercommunication and with the play water cavity of exhalant canal intercommunication, the chamber wall of intake antrum has first pressure release department, the pressure that first pressure release department can bear is less than the pressure that the valve body can bear just is less than the pressure that the case can bear for in-process when the water in the inhalant canal freezes at low temperature, first pressure release department can break earlier, first pressure release department breaks the back, the water in the inhalant canal can be through first pressure release department discharge outside the valve pocket, avoid case or valve body or the pipe-line system who is connected with the valve body to burst, only need during the maintenance to change the base can, need not to change valve body or case or the pipe-line system who is connected with the valve body, easy maintenance, and cost of maintenance is low.

2. The utility model discloses a set up second pressure release department on the chamber wall that goes out the water cavity, the pressure that second pressure release department can bear is less than the pressure that valve body can bear and be less than the pressure that the case can bear for in-process that the water in the play water cavity freezes at low temperature, second pressure release department can break earlier, second pressure release department breaks the back, the water in the play water cavity can be followed outside second pressure release department discharge valve pocket, avoid case or valve body or the pipe-line system who is connected with the valve body to burst, only need during the maintenance pull down the base and change can, need not to change valve body or case or the pipe-line system who is connected with the valve body, and easy maintenance, and cost of maintenance is low.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the explosion-proof water outlet control device of the present invention is not limited to the embodiment.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is a first cross-sectional view (an arrow in the figure shows a flow direction of a pressure-released water flow in a water cavity) of a first embodiment of the present invention;

fig. 3 is a second cross-sectional view of the first embodiment of the present invention;

fig. 4 is a third cross-sectional view (the arrow in the figure indicates the flow direction of the pressure-relieved water flow in the water inlet cavity) of the first embodiment of the invention;

fig. 5 is an exploded schematic view of a first embodiment of the present invention;

fig. 6 is a sectional view of a valve cartridge according to a first embodiment of the present invention;

fig. 7 is a schematic perspective view (from top to bottom) of a base according to a first embodiment of the present invention;

fig. 8 is a schematic perspective view (from bottom to top) of a second embodiment of the present invention;

fig. 9 is a third schematic perspective view (viewed from bottom to top) of the base according to the first embodiment of the present invention.

The reference numerals are explained below:

1-valve body, 11-first body, 111-water inlet channel, 112-water outlet channel, 12-second body, 13-valve cavity, 2-valve core, 21-fixed part, 211-shell, 2111-inner cavity, 2112-first through hole, 2113-second through hole, 212-fixed valve plate, 2121-first water through hole, 2122-second water through hole, 22-movable part, 221-movable valve plate, 2211-third water through hole, 222-valve rod, 3-base, 31-water inlet cavity, 311-first pressure relief part, 32-water outlet cavity, 321-second pressure relief part, 33-second positioning column, 34-first positioning hole and a-sharp corner.

Detailed Description

Example one

Referring to fig. 1 to 9, an explosion-proof water outlet control device of the present embodiment includes a valve body 1 having a valve cavity 13, a valve core 2 detachably mounted in the valve cavity 13, and a base 3 detachably and fixedly mounted in the valve cavity 13, the base 3 having a water inlet cavity 31 and a water outlet cavity 32, the valve body 1 having a water inlet channel 111 communicated with the water inlet cavity 31 and a water outlet channel 112 communicated with the water outlet cavity 32, the valve core 2 having a communication channel capable of communicating the water inlet cavity 31 with the water outlet cavity 32, the valve core 2 being capable of controlling the connection or disconnection of the water inlet cavity 31 and the water outlet cavity 32, the valve core 2 partially extending out of the valve cavity 13 for driving, the cavity wall of the water inlet cavity 31 having a first pressure relief portion 311, the first pressure relief portion 311 being capable of bearing a pressure smaller than the valve body 1 and smaller than the valve core 2 (i.e. the first pressure relief portion 311 being capable of bearing a pressure smaller than the valve body 1, the pressure which can be borne by the first pressure relief part 311 is less than that of the valve core 2); after the first pressure relief part 311 is broken, the water in the water inlet cavity 31 can be discharged out of the valve cavity 13 through the first pressure relief part 311; when the explosion-proof water outlet control device of the present embodiment is turned off (i.e., the inlet chamber 31 and the outlet chamber 32 are disconnected), the inlet chamber 31 may store water due to the connection with the water source. The whole structure of the embodiment is simple, the base 3 is fixedly installed in the valve cavity 13 in a detachable manner, the base 3 is provided with the water inlet cavity 31 communicated with the water inlet channel 111 and the water outlet cavity 32 communicated with the water outlet channel 112, the cavity wall of the water inlet cavity 31 is provided with the first pressure relief part 311, the pressure borne by the first pressure relief part 311 is smaller than the pressure borne by the valve body 1 and the pressure borne by the valve core 2, so that in the process that water stored in the water inlet cavity 31 is frozen at a low temperature, the first pressure relief part 311 can be firstly broken, after the first pressure relief part 311 is broken, the water in the water inlet cavity 31 can be discharged out of the valve cavity from the broken first pressure relief part 311, the valve core 2 or the valve body 1 or a pipeline system connected with the valve body 1 is prevented from bursting, so that the base 3 only needs to be detached and replaced during maintenance, the valve body 1 or the valve core 2 does not need to be replaced, the maintenance is convenient, and the maintenance cost is low.

Specifically, in this embodiment, the wall thickness of the first relief portion 311 is smaller than the wall thickness of the valve body 1 and smaller than the wall thickness of the valve core 2, the internal stress of the first relief portion 311 is greater than the internal stress of the valve body 1 and greater than the internal stress of the valve core 2, and the strength of the material of the base 3 is smaller than the strength of the material of the valve body 1 and smaller than the strength of the material of the valve core 2, so that the pressure that the first relief portion 311 can bear is smaller than the pressure that the valve body 1 can bear and smaller than the pressure that the valve core 2 can bear; the present embodiment increases the internal stress of the first relief pressure 311 by providing a surface having a certain curvature at the first relief pressure 311, and increases the internal stress of the first relief pressure 311 by providing a sharp angle a formed by at least two surfaces therebetween; the wall thickness of the first pressure relief part 311 is smaller than the wall thickness of the cavity walls at other positions of the water inlet cavity 31, the water inlet channel 111 is communicated with a water source, and the water outlet channel 112 is communicated with a downstream pipeline. In other embodiments, the pressure that can be borne by the first relief 311 can be set to be less than the pressure that can be borne by the valve body 1 and less than the pressure that can be borne by the valve core 2 as follows: the wall thickness of the first pressure relief part is smaller than that of the valve body and smaller than that of the valve core, and the strength of the base is smaller than that of the valve body and smaller than that of the valve core; or the internal stress at the first pressure relief part is larger than the internal stress of the valve body and larger than the internal stress of the valve core, and the strength of the material of the base is smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve core; or the wall thickness of the first pressure relief part is only set to be smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve core; or the internal stress at the first pressure relief part is only set to be larger than the internal stress of the valve body and larger than the internal stress of the valve core; or the strength of the material of the base is only set to be smaller than that of the material of the valve body and smaller than that of the material of the valve core; or the wall thickness of the first pressure relief part can be smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve core, and the internal stress of the first pressure relief part is larger than the internal stress of the valve body and larger than the internal stress of the valve core. By adopting the mode, the pressure born by the first pressure relief part can be smaller than the pressure born by the valve body and smaller than the pressure born by the valve core, and the specific implementation mode can be selected according to the actual situation.

Referring to fig. 2 to fig. 9, in the present embodiment, the cavity wall of the water outlet cavity 32 has a second pressure relief portion 321, and the pressure that can be borne by the second pressure relief portion 321 is less than the pressure that can be borne by the valve body 1 and less than the pressure that can be borne by the valve core 2; when a control valve (not shown in the figures) for controlling the on-off of the water path is further disposed in the downstream pipeline of the water outlet channel 112, even if the explosion-proof water outlet control device is closed (i.e. the water inlet chamber 31 and the water outlet chamber 32 are disconnected), water will be stored in the water outlet channel 112 and the water outlet chamber 32, when the water is frozen, the second pressure relief portion 321 will be broken, and after the second pressure relief portion 321 is broken, the water in the water outlet chamber 32 can be discharged out of the valve chamber 13 through the second pressure relief portion 311. This embodiment is through setting up second pressure release department 321 on the chamber wall of play water cavity 32, and the pressure that second pressure release department 321 can bear is less than the pressure that valve body 1 can bear and be less than the pressure that case 2 can bear for under the condition that has water to deposit in a water cavity 32, deposit the in-process that becomes ice at low temperature, second pressure release department 321 can break earlier, second pressure release department 321 breaks the back, go out the water in the water cavity 32 and can follow outside second pressure release department 321 discharge valve pocket 13, avoid case 2 or valve body 1 to burst, it can only to need to pull down and change base 3 during the maintenance, need not to change valve body 1 or case 2, easy maintenance, and cost of maintenance is low. It should be noted that if the water path downstream of the water outlet channel 112 is not provided with a control valve, and the water in the water outlet channel 112 can be discharged, the water outlet chamber 32 does not need to be provided with the second pressure relief portion 321. The utility model discloses a go out water cavity 32 and also be provided with pressure release department (second pressure release department 321) for explosion-proof play water controlling means's service environment is more nimble, both can be used in the pipeline system that the low reaches water route of outlet channel 112 was provided with the control valve, also can be used in the pipeline system that the low reaches water route of outlet channel 112 did not set up the control valve.

Referring to fig. 1 to 5, in this embodiment, the valve body 1 includes a first body 11 and a second body 12 detachably connected to the first body 11, the second body 12 and the first body 11 enclose to form a valve cavity 13, the base 3 is disposed in the first body 11, a bottom surface of the base 3 abuts against the first body 11, and when the second body 12 is fixedly connected to the first body 11, the second body 12 presses the valve core 2 against a top surface of the base 3, so as to detachably mount the valve core 2 and the base 3 in the valve cavity 13. In this embodiment, the first body 11 and the second body 12 are specifically connected by threads; a second positioning structure is arranged between the base 3 and the first body 11, and the base 3 and the first body 11 are circumferentially and relatively fixed through the second positioning structure, and the second positioning structure specifically comprises a second positioning column 33 arranged on the bottom surface of the base 3 and a second positioning groove (not shown in the figure) which is arranged on the bottom wall of the valve cavity 13 and is in clamping fit with the second positioning column 33.

Referring to fig. 1 to 5, in the present embodiment, the water inlet channel 111 and the water outlet channel 112 are both disposed on the first body 11, the water inlet cavity 31 penetrates through the top surface and the bottom surface of the base 3, the water outlet cavity 32 penetrates through the top surface and the bottom surface of the base 3, the water inlet channel 111 is in sealed communication with the inlet of the water inlet cavity 31, the outlet of the water inlet cavity 31 can be in sealed communication with the inlet of the communication channel, the outlet of the communication channel can be in sealed communication with the inlet of the water outlet cavity 32, and the outlet of the water outlet cavity 32 is in sealed communication with the water outlet channel 112.

Referring to fig. 6, in the present embodiment, the valve core 2 includes a fixed portion 21 fixed relative to the valve body 1 and a movable portion 22 rotatably disposed on the fixed portion 21, the movable portion 22 has a valve stem 222, the valve stem 222 extends out of the valve cavity 13 for driving, and the valve stem 222 is configured to be driven manually or electrically by rotating the movable portion 22 to control the connection or disconnection between the water inlet cavity 31 and the water outlet cavity 32.

Specifically, in this embodiment, the fixing portion 21 includes a housing 211 having an inner cavity 2111 and a fixed valve plate 212 fixedly disposed in the inner cavity 2111, the movable portion 22 includes a movable valve plate 221 rotatably disposed in the inner cavity 2111 and the valve rod 222, one end of the valve rod 222 extends into the inner cavity 2111 to be rotationally linked and matched with the movable valve plate 221, the other end of the valve rod 222 extends out of the valve cavity to be driven, the valve rod 222 presses the movable valve plate 221 against the fixed valve plate 212, the fixed valve plate 212 abuts against a bottom wall of the housing 211, the bottom wall of the housing 211 is provided with a first through hole 2112 hermetically connected to an outlet of the water inlet cavity 31 and a second through hole 2113 hermetically connected to an inlet of the water outlet cavity, the fixed valve plate 212 is provided with a first through hole 2121 hermetically connected to the first through hole 2112 and a second through hole 2122 hermetically connected to the second through hole 2113, the movable valve plate 221 is provided with a third through hole 2211, and the valve rod 222 drives the movable valve plate 221 to rotate to hermetically connect the third through hole 2211 to hermetically connect the first through hole 2121 and the second through hole 2212 to the first through hole and the second through hole 2112 31 and the water outlet chamber 32 or the movable valve plate 221 disconnects the first water through hole 2121 and the second water through hole 2122 to further disconnect the water inlet chamber 31 and the water outlet chamber 32. In this embodiment, the water flowing out of the water inlet cavity 31 sequentially passes through the first through hole 2112 of the bottom wall of the housing 211, the first water through hole 2121 of the fixed valve plate 212, the third water through hole 2211 of the movable valve plate 221, the second water through hole 2122 of the fixed valve plate 212 and the second through hole 2113 of the bottom wall of the housing 211 and then flows into the water outlet cavity 32, that is, the first through hole 2112 of the bottom wall of the housing 211, the first water through hole 2121 of the fixed valve plate 212, the third water through hole 2211 of the movable valve plate 221, the second water through hole 2122 of the fixed valve plate 212 and the second through hole 2113 of the bottom wall of the housing 211 form a communication channel on the valve core 2, which can communicate the water inlet cavity 31 and the water outlet cavity 32.

In this embodiment, a first positioning structure is disposed between the fixing portion 21 and the base 3, and the fixing portion 21 and the base 3 are circumferentially and relatively fixed by the first positioning structure, and the second positioning structure specifically includes a first positioning hole 34 disposed on the top surface of the base 3 and a first positioning post (not shown in the figure) disposed on the bottom wall of the housing 211 and capable of being engaged with the first positioning hole 34. In other embodiments, it can also be set as: the whole valve core is rotatably arranged in the valve cavity, the valve core is provided with a valve rod, the valve rod extends out of the valve cavity to be driven, the communicating channel is controlled to be communicated through rotating the valve core, so that the water inlet cavity and the water outlet cavity are communicated, or the communicating channel is controlled to be disconnected, so that the water inlet cavity and the water outlet cavity are disconnected.

In this embodiment, first body 11 and wall body fixed connection, this embodiment owing to set up first pressure release department 311 through the chamber wall at intake antrum 31 and set up second pressure release department 321 at the chamber wall of play water cavity 32 and can avoid valve body 1 to break, so only need during the maintenance with second body 12 follow first body 11 pull down and change base 3 can, need not to pound the wall and change first body 11, greatly reduced cost of maintenance, it is more convenient to maintain. In other embodiments, the whole valve body may be exposed (i.e., the valve body is not fixedly connected to the wall).

Referring to fig. 2 to 9, in the present embodiment, the base 3 has a plurality of water inlet cavities 31 and a water outlet cavity 32, the number of the water inlet channels 111 matches the number of the water inlet cavities 31, each water inlet cavity 31 is respectively communicated with each water inlet channel 111 in a one-to-one correspondence, and the valve core 2 can control the water outlet cavity 32 to be communicated with any one or more of the water inlet cavities 31, or control the water outlet cavity 32 to be not communicated with each water inlet cavity 31. In the present embodiment, a plurality means two or more.

Specifically, in this embodiment, the base 3 has two water inlet chambers 31 and one water outlet chamber 32, the valve body 1 is provided with two water inlet passages 111 and one water outlet passage 112, one of the water inlet passages 111 is connected to a cold water source, the other water inlet passage 111 is connected to a hot water source, the water outlet chamber 32 is controlled by the rotary valve core 2 to be connected to any one of the two water inlet chambers 31 or to be simultaneously connected to the two water inlet chambers 31 or to be not connected to each water inlet chamber 31, and when the water outlet chamber 32 is simultaneously connected to the two water inlet chambers 31, cold water and hot water are mixed in the connecting passages and then flow into the water outlet chamber 32.

Referring to fig. 4, in the embodiment, after the first pressure relief portion 311 is frozen and cracked, water in the water inlet chamber 31 can be discharged out of the valve cavity 13 through the first pressure relief portion 311, the gap between the valve body 1 and the base 3, and the gap between the valve core 2 and the valve body 1 in sequence, so that after the first pressure relief portion 311 is broken, water in the water inlet chamber 31 can be discharged out of the valve cavity 13 through the first pressure relief portion 311. In other embodiments, it can also be set as: the water in the water inlet cavity can be discharged out of the valve cavity through the first pressure relief part, the gap between the valve body and the base, the gap between the valve core and the valve body and the gap between the first body and the second body in sequence; or, the water in the water inlet cavity can sequentially pass through the first pressure relief position, the gap between the valve body and the base and the gap between the first body and the second body to be discharged out of the valve cavity, and after the first pressure relief position 311 is broken, the water in the water inlet cavity 31 can be discharged out of the valve cavity 13 through the first pressure relief position 311, and the pressure relief path from the specific first pressure relief position 311 to the outside of the valve cavity 13 is not limited to this.

Referring to fig. 3 and fig. 7 to 9, in the present embodiment, a wall thickness of the second pressure relief portion 321 is smaller than a wall thickness of the valve body 1 and smaller than a wall thickness of the valve element 2, an internal stress of the second pressure relief portion 321 is larger than an internal stress of the valve body 1 and larger than an internal stress of the valve element 2, and a strength of a material of the base 3 is smaller than a strength of a material of the valve body 1 and smaller than a strength of a material of the valve element 2, so that a pressure that the second pressure relief portion 321 can bear is smaller than a pressure that the valve body 1 can bear and smaller than a pressure that the valve element 2 can bear, in the present embodiment, the internal stress of the second pressure relief portion 321 is increased by providing a sharp corner a formed between at least two surfaces at the second pressure relief portion 321; the wall thickness of the second relief 321 is less than the wall thickness of the lumen wall elsewhere in the outlet lumen 32. In other embodiments, the pressure that can be borne by the second pressure relief portion 321 is less than that of the valve body 1 and less than that of the valve core 2 in the following manner: the wall thickness of the second pressure relief part is smaller than that of the valve body and smaller than that of the valve core, and the strength of the base is smaller than that of the valve body and smaller than that of the valve core; or the internal stress at the second pressure relief part is larger than the internal stress of the valve body and larger than the internal stress of the valve core, and the strength of the material of the base is smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve core; or the wall thickness of the second pressure relief part can be smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve core, and the internal stress of the second pressure relief part is larger than the internal stress of the valve body and larger than the internal stress of the valve core; or the wall thickness of the second pressure relief part is only set to be smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve core; or the internal stress at the second pressure relief part is only set to be larger than the internal stress of the valve body and larger than the internal stress of the valve core; alternatively, the strength of the material of the base is set to be smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve element. By adopting the above manner, the pressure that can be borne by the second pressure relief portion 321 is smaller than the pressure that can be borne by the valve body 1 and smaller than the pressure that can be borne by the valve element 2, and the specific implementation mode can be selected according to the actual situation.

Referring to fig. 2, in the present embodiment, water in the water outlet chamber 32 can be discharged out of the valve chamber 13 through the second pressure relief portion 321, the gap between the valve body 1 and the base 3, and the gap between the valve core 2 and the valve body 1 in sequence, so that after the second pressure relief portion 321 is broken, water in the water outlet chamber 32 can be discharged out of the valve chamber 13 through the second pressure relief portion 321. In other embodiments, it can also be set as: the water in the water outlet cavity can be discharged out of the valve cavity sequentially through the second pressure relief position, the gap between the valve body and the base, the gap between the valve core and the valve body and the gap between the first body and the second body; or, the water in the water outlet cavity can be discharged out of the valve cavity through the second pressure relief part, the gap between the valve body and the base and the gap between the first body and the second body in sequence, and after the second pressure relief part 321 is broken, the water in the water outlet cavity 32 can be discharged out of the valve cavity 13 through the second pressure relief part 321, and the specific pressure relief path from the second pressure relief part 321 to the outside of the valve cavity 13 is not limited to this.

In this embodiment, the base 3 is made of plastic such as PPO or POM, the valve body 1 is made of PPA or glass fiber modified material of PPA, and the valve body 2 is made of PPS or PA66 or glass fiber modified material of PA66, but the specific embodiment is not limited thereto.

In other embodiments, it may be configured to increase the internal stress at the first pressure relief portion only by providing a surface with a certain curvature at the first pressure relief portion; or to increase the internal stress at the first pressure relief merely by providing a sharp corner at the first pressure relief formed between at least two faces. Of course, the internal stress at the first relief pressure can be increased by other conventional methods, including but not limited to, the method from the structure of the product or the molding process of the product, which are not listed here.

In other embodiments, the second pressure relief part can be provided with a surface with a certain radian and a sharp corner formed by at least two surfaces to increase the internal stress of the second pressure relief part; or arranged to increase the internal stress at the second pressure relief by providing a curved surface at the second pressure relief. Of course, the increase of the internal stress at the second pressure relief can also be performed in other conventional manners that can cause the increase of the internal stress, including but not limited to, the configuration of the product or the forming process of the product, etc., which are not listed here.

It should be noted that 1 or more first pressure relief points may be provided, and likewise, 1 or more second pressure relief points may be provided.

EXAMPLE two (not shown)

The present embodiment is substantially the same as the first embodiment, and the difference is only that:

in this embodiment, the base has a intake antrum and a plurality of play water cavity, and the quantity of outlet channel matches with the quantity of play water cavity, and each goes out the water cavity and communicates with each outlet channel one-to-one respectively, and the case has the passageway that overflows that can communicate intake antrum and play water cavity, and the case can control the intake antrum to switch and communicate each play water cavity, or control the intake antrum and each play water cavity and all not communicate.

In this embodiment, the structures and principles of the remaining portions not described are consistent with the embodiment, and are not described herein again.

EXAMPLE III (not shown)

The present embodiment is substantially the same as the first embodiment, and the differences are only that:

in this embodiment, the base has a plurality of intake antrums and a plurality of play water cavity, and the quantity of inlet channel matches with the quantity of intake antrum, and the quantity of play water channel matches with the quantity of play water cavity, and each intake antrum communicates with each inlet channel one-to-one respectively, and each goes out the water cavity and communicates with each play water channel one-to-one respectively, and the case can control arbitrary one or more play water cavity and arbitrary one or more intercommunication in the intake antrum, or control each play water cavity and each intake antrum not to communicate.

In this embodiment, the structures and principles of the remaining parts not described are consistent with the embodiment, and are not described herein again.

In other embodiments, it can also be set as: the base is provided with a water inlet cavity and a water outlet cavity, and the water inlet cavity is controlled to be communicated or disconnected with the water outlet cavity by rotating the valve core; alternatively, the base has a plurality of inlet chambers and a plurality of outlet chambers. It should be noted that the number of the water inlet cavities and the water outlet cavities arranged on the base can be designed according to actual needs.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has a simple structure, the valve cavity is detachably and fixedly provided with the base, the base is provided with a water inlet cavity communicated with the water inlet channel and a water outlet cavity communicated with the water outlet channel, the cavity wall of the water inlet cavity is provided with a first pressure relief part, the pressure born by the first pressure relief part is smaller than the pressure born by the valve body and smaller than the pressure born by the valve core, when the water in the water inlet cavity is frozen at low temperature, the first pressure relief part can be firstly broken, and after the first pressure relief part is broken, the water in the water inlet cavity can be discharged out of the valve cavity through the first pressure relief position, so that the valve core or the valve body or a pipeline system connected with the valve body is prevented from bursting, the valve body or the valve core or the pipeline system connected with the valve body is not required to be replaced, the maintenance is convenient, and the maintenance cost is low.

The above embodiments are only used to further explain the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification of the technical entity of the present invention to the above embodiments all fall into the protection scope of the technical solution of the present invention.

Claims (12)

1. An explosion-proof water outlet control device is characterized by comprising a valve body with a valve cavity, a valve core detachably arranged in the valve cavity and a base detachably and fixedly arranged in the valve cavity, wherein the base is provided with a water inlet cavity and a water outlet cavity; after the first pressure relief position is broken, water in the water inlet cavity can be discharged out of the valve cavity through the first pressure relief position.

2. The explosion-proof water outlet control device according to claim 1, wherein the wall of the water outlet chamber has a second pressure relief point, and the pressure that can be borne by the second pressure relief point is smaller than the pressure that can be borne by the valve body and smaller than the pressure that can be borne by the valve core; after the second pressure relief part is broken, water in the water outlet cavity can be discharged out of the valve cavity through the second pressure relief part.

3. The explosion-proof water outlet control device according to claim 1, wherein the valve body comprises a first body and a second body detachably connected with the first body, the second body and the first body enclose to form the valve chamber, the base is arranged in the first body, the bottom surface of the base abuts against the first body, and the second body is fixedly connected with the first body to press the valve core against the top surface of the base.

4. The explosion-proof water outlet control device according to claim 3, wherein the water inlet channel and the water outlet channel are both disposed on the first body, the water inlet cavity penetrates through the top surface and the bottom surface of the base, the water outlet cavity penetrates through the top surface and the bottom surface of the base, the water inlet channel is in sealed communication with the inlet of the water inlet cavity, the outlet of the water inlet cavity is in sealed communication with the inlet of the communication channel, the outlet of the communication channel is in sealed communication with the inlet of the water outlet cavity, and the outlet of the water outlet cavity is in sealed communication with the water outlet channel.

5. The explosion-proof water outlet control device as claimed in claim 1, wherein the base has a plurality of water inlet cavities and a water outlet cavity, the number of the water inlet channels matches with the number of the water inlet cavities, each water inlet cavity is communicated with each water inlet channel in a one-to-one correspondence, the valve core can control the water outlet cavity to be communicated with any one or more of the water inlet cavities, or control the water outlet cavity to be not communicated with each water inlet cavity;

or the base is provided with a water inlet cavity and a plurality of water outlet cavities, the number of the water outlet channels is matched with that of the water outlet cavities, each water outlet cavity is communicated with each water outlet channel in a one-to-one correspondence manner, and the valve core can control the water inlet cavity to be communicated with each water outlet cavity in a switching manner or control the water inlet cavity to be not communicated with each water outlet cavity;

or the base is provided with a plurality of water inlet cavities and a plurality of water outlet cavities, the number of the water inlet channels is matched with that of the water inlet cavities, the number of the water outlet channels is matched with that of the water outlet cavities, the water inlet cavities are respectively communicated with the water inlet channels in a one-to-one correspondence manner, the water outlet cavities are respectively communicated with the water outlet channels in a one-to-one correspondence manner, the valve core can control any one or more water outlet cavities to be communicated with any one or more water inlet cavities, or control all the water outlet cavities to be not communicated with all the water inlet cavities.

6. The explosion-proof water outlet control device according to any one of claims 1 to 5, wherein the valve core comprises a fixed part fixed relative to the valve body and a movable part rotatably arranged on the fixed part, the movable part is provided with a valve rod, the valve rod extends out of the valve cavity for driving, and the movable part is rotated to control the connection or disconnection of the water inlet cavity and the water outlet cavity;

or the valve core is rotatably arranged in the valve cavity and provided with a valve rod, the valve rod extends out of the valve cavity to be driven, and the valve core is rotated to control the connection or disconnection of the water inlet cavity and the water outlet cavity.

7. The explosion-proof water outlet control device according to claim 1, wherein the wall thickness of the first pressure relief portion is smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve element, and/or the internal stress of the first pressure relief portion is larger than the internal stress of the valve body and larger than the internal stress of the valve element, and/or the strength of the material of the base is smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve element, so that the pressure that the first pressure relief portion can bear is smaller than the pressure that the valve body can bear and smaller than the pressure that the valve element can bear.

8. The explosion-proof effluent control means of claim 7 wherein the internal stress at said first pressure relief location is increased by providing said first pressure relief location with a surface having an arc and/or a sharp corner formed between at least two surfaces.

9. The explosion-proof water outlet control device according to claim 2, wherein the wall thickness of the second pressure relief portion is smaller than the wall thickness of the valve body and smaller than the wall thickness of the valve element, and/or the internal stress of the second pressure relief portion is larger than the internal stress of the valve body and larger than the internal stress of the valve element, and/or the strength of the material of the base is smaller than the strength of the material of the valve body and smaller than the strength of the material of the valve element, so that the pressure that the second pressure relief portion can bear is smaller than the pressure that the valve body can bear and smaller than the pressure that the valve element can bear.

10. The explosion-proof effluent control device of claim 9 wherein the internal stress at the second pressure relief location is increased by providing a surface with an arc and/or by a sharp angle formed between at least two surfaces at the second pressure relief location.

11. The explosion-proof water outlet control device of claim 2, wherein the wall thickness at the second pressure relief is smaller than the wall thickness of the wall at other positions of the water outlet cavity.

12. The explosion-proof water outlet control device of claim 1, wherein the wall thickness at the first pressure relief is less than the wall thickness of the chamber wall at other locations of the inlet chamber.

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