CN113294579A

CN113294579A - Water route switches end cap and reverse water supply of constant temperature and switches structure

Info

Publication number: CN113294579A
Application number: CN202110672286.8A
Authority: CN
Inventors: 卢文荣; 张汉斌; 冯祥松
Original assignee: Pengwei Xiamen Industry Co ltd
Current assignee: Pengwei Xiamen Industry Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-08-24
Also published as: GB202208947D0; GB2609740A

Abstract

A waterway switching plug and a constant-temperature reverse water inlet switching structure are provided, wherein the waterway switching plug is a switching plug A and a switching plug B which are independent respectively, the switching plug A comprises an installation base and a circular plug block, the circular plug block is connected with the installation base, and a sealing ring is arranged on the periphery of the circular plug block; the switching plug B comprises an installation base and a circular plug block, the circular plug block is connected with the installation base through a small-diameter rod, the diameter of the small-diameter rod is smaller than that of the installation base, and at least one sealing ring is arranged on the periphery of the circular plug block; the diameter of the installation base is larger than or equal to that of the circular plugging block, the outer diameter sizes of the circular plugging blocks of the switching plug A and the switching plug B are the same, the water inlet directions of cold water and hot water can be easily changed by using the switching plug A and the switching plug B in an exchange mode, and the installation base does not need to be detached and installed again under the condition of wrong directions.

Description

Water route switches end cap and reverse water supply of constant temperature and switches structure

Technical Field

The invention relates to the field of bathrooms, in particular to a waterway switching plug and a constant-temperature reverse water inlet switching structure.

Background

In the existing bathroom products, some pre-buried cold and hot water pipes are respectively connected with a cold and hot water source, however, in the installation process, an installer may install the cold and hot water pipes reversely; or in some occasions, the original orientation of the cold and hot water sources is opposite to the orientation of the cold and hot water inlet holes of the valve core product, so that the cold and hot water pipes or the cold and hot water sources need to be disassembled and reinstalled, which is unrealistic in practical occasions and wastes manpower and financial resources.

In view of the above, the present inventors have made extensive studies on the above-mentioned drawbacks of the prior art, and have made this invention.

Disclosure of Invention

The invention aims to provide a waterway switching plug capable of switching the water inlet directions of cold water and hot water of a water mixing valve core at any time and a constant-temperature reverse water inlet switching structure.

In order to achieve the purpose, the scheme is that the waterway switching plug comprises two independent switching plugs which are respectively defined as a switching plug A and a switching plug B, wherein the switching plug A comprises an installation base and a circular plug block, the circular plug block is connected with the installation base, and a sealing ring is arranged on the periphery of the circular plug block; the switching plug B comprises an installation base and a circular plug block, the circular plug block is connected with the installation base through a small-diameter rod, the diameter of the small-diameter rod is smaller than that of the installation base, and at least one sealing ring is arranged on the periphery of the circular plug block; the diameter of the installation base is larger than or equal to that of the circular plugging block, and the outer diameters of the circular plugging blocks of the switching plug A and the switching plug B are the same.

Further, the installation bases of the switching plug A and the switching plug B are provided with external threads.

Furthermore, counterbores are formed in the top of the installation bases of the switching plug A and the switching plug B, and the counterbores are polygonal.

A constant-temperature reverse water inlet switching structure comprises a main body, wherein the main body comprises a first water inlet, a second water inlet and a water mixing valve core cavity, the water mixing valve core cavity is a through cavity communicated from front to back, the bottom of the valve core constant-temperature cavity is a mixed water outlet, a water mixing valve core is arranged in the water mixing valve core cavity, an opening structure is arranged in the water mixing valve core cavity and in a sealing mode at the corresponding position of a cold water inlet and a hot water inlet of the water mixing valve core and is respectively a cold water opening and a hot water opening, a water outlet of the water mixing valve core is communicated outwards through the mixed water outlet of the water mixing valve core cavity, a water path switching cavity is arranged between the first water inlet and the second water inlet and the water mixing valve core, a water inlet channel communicated with the first water inlet or the second water inlet and two water outlet channels are arranged in the water path switching cavity and are respectively communicated with the cold water inlet and the hot water inlet of the water mixing valve core in the water mixing valve core cavity, Conducting one by one; the water inlet channel is positioned between the two water outlet channels and is communicated with each other, the water inlet channel and the two water outlet channels form a communicating necking respectively, and the communicating necking is sequentially an upper communicating necking and a lower communicating necking, and the inner diameter of the upper communicating necking and the inner diameter of the lower communicating necking are the same as the outer diameter of the circular plugging blocks of the switching plug A and the switching plug B; the waterway switching plugs according to any one of claims are fixedly arranged in the two waterway switching cavities respectively, the circular plug of the switching plug A is plugged in the lower conduction necking in one waterway switching cavity, and the circular plug of the switching plug B is plugged in the upper conduction necking in the other waterway switching cavity.

Further, two water routes switch intracavity wall and all are equipped with the internal thread, switch end cap A or switch end cap B and all be fixed in the water route through the screw thread spiro union and switch the intracavity.

Further, two water routes switch the chamber and set up side by side with mixing water case chamber, and along the axis symmetric distribution in mixing the both sides in water case chamber.

Further, first water inlet and second water inlet department are equipped with stagnant water chamber respectively, set up a check valve in the stagnant water intracavity respectively, stagnant water chamber wall sets up a water outlet gap, and this water outlet gap switches the inhalant canal intercommunication in chamber with the water route that corresponds.

Further, stagnant water chamber and the water route that corresponds switch the chamber and set up side by side, and the direct horizontal switch-on of water inlet channel in stagnant water chamber wall's play water breach and the water route that corresponds switches the chamber.

Further, the water mixing valve core is a constant-temperature water mixing valve core.

The advantage of this patent lies in: the water inlet direction of cold water and hot water is not required to be adjusted, and the reverse switching of the water paths can be quickly realized only by quickly adjusting the water outlet direction of the water path switching cavities at the two sides of the product; particularly, once the direction is wrong, the switching plugs at two sides are only needed to be used in an exchange mode, namely the switching plug A and the switching plug B are used in an exchange mode, and the forward communication of cold and hot water with cold and hot water inlets of an internal water mixing valve core (constant-temperature water mixing valve core) can be quickly realized; thereby avoiding the waste of manpower and material resources due to installation errors or limited field conditions.

Drawings

The detailed description, given as a non-limiting example, better explains what the invention includes and can be implemented, and moreover, refers to the accompanying drawings, in which:

FIG. 1 is an exploded view of an embodiment of the present patent;

FIG. 2 is an assembled view of the embodiment of the present patent;

FIG. 3 is a top view of the body in this patent embodiment;

FIG. 4 is a schematic cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic bottom view of FIG. 2;

FIG. 7 is a top view of FIG. 2;

FIG. 8 is a schematic cross-sectional view taken along C-C of FIG. 7;

FIG. 9 is a schematic cross-sectional view taken along D-D of FIG. 7;

fig. 10 is a schematic diagram of an exchange switching plug a and a switching plug B;

FIG. 11 is a first cross-sectional view of the case of FIG. 10;

fig. 12 is a second schematic sectional view of the case of fig. 10.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 to 12, a waterway switching plug includes two independent switching plugs, respectively defined as a switching plug a and a switching plug B, where the switching plug a includes a mounting base 11 and a circular plug 12, the circular plug 12 is connected to the mounting base 11, two convex edges are formed on the periphery of the circular plug 12 to form an annular groove 122, and a sealing ring 121 is embedded in the annular groove 122; the switching plug B comprises a mounting base 21 and a circular plug 22, the circular plug 22 is connected with the mounting base 21 through a small-diameter rod 23, the diameter of the small-diameter rod 23 is smaller than that of the mounting base 21, two convex edges are arranged on the periphery of the circular plug 22 to form an annular groove 222, and a sealing ring 221 is embedded in the annular groove 222; the outer diameters of the

circular plugging blocks

12 and 22 of the switching plug A and the switching plug B are the same.

And the

installation bases

11 and 21 of the switching plug A and the switching plug B are provided with

external threads

13 and 24.

Counterbores

112 and 212 are formed in the

top portions

111 and 211 of the installation bases 11 of the switching plug A and the switching plug B, the

counterbores

112 and 212 are polygonal, so that screwing and dismounting can be achieved through inserting and rotating of corresponding polygonal wrenches, in the embodiment, the

counterbores

112 and 212 are hexagonal, and hexagonal wrenches are adopted.

A constant-temperature reverse water inlet switching structure comprises a main body 3 which is provided with a first water inlet 31, a second water inlet 32 and a mixing valve core cavity 33, wherein the mixing valve core cavity 33 is a through cavity, the bottom of the valve core constant-temperature cavity 33 is a mixed water outlet 34, a mixing valve core is arranged in the mixing valve core cavity 33, the mixing valve core in the embodiment adopts a common constant-temperature mixing valve core 4 and is fixed in the mixing valve core cavity 33 through a valve core pressure cap 44, openings are sealed at the corresponding positions of the mixing valve core cavity 33 and a cold water inlet 42 and a hot water inlet 42 of the constant-temperature mixing valve core 4 in the mixing valve core cavity, the openings are respectively a cold water opening and a hot water opening, a water outlet 43 of the constant-temperature mixing valve core 4 is conducted outwards through the mixed water outlet 34 of the mixing valve core cavity 33, a water path switching cavity 5 is arranged between the first water inlet 31 and the second water inlet 32 and the constant-temperature mixing valve core 4, and a water inlet channel 51 which is conducted with the first water inlet 31 or the second water inlet 32 is arranged in the water path switching cavity 5, the two

water outlet channels

521 and 522 are respectively an upper water outlet channel 521 and a lower water outlet channel 522, the upper water outlet channel 521 is communicated with the cold water inlet 41 of the water mixing valve core cavity 33, and the lower water outlet channel 522 is communicated with the hot water inlet 42 of the water mixing valve core cavity 33; the water inlet channel 51 is clamped between the two

water outlet channels

521 and 522 and is communicated with each other, and the water inlet channel 51 and the two

water outlet channels

521 and 522 respectively form a communicating necking which is an upper communicating necking 53 and a lower communicating necking 54 in sequence; the inner diameter of the upper conduction necking 53 is the same as the inner diameter of the lower conduction necking 54, and the inner diameter of the

circular blocks

12 and 22 of the switching plug A and the switching plug B is the same as the outer diameter of the

circular blocks

12 and 22 of the switching plug A and the switching plug B, the waterway switching plugs are fixedly arranged in the two waterway switching cavities 5, the waterway switching plugs select the switching plug A or the switching plug B according to the trends of cold and hot water routes, the circular block 12 of the switching plug A is blocked by the lower conduction necking in one waterway switching cavity 5, and the circular block 22 of the switching plug B is blocked by the upper conduction necking 53 in the other waterway switching cavity 5.

Two water routes switch chamber 5 inner wall top all is equipped with internal thread 55, switch end cap A or switch end cap B and all be fixed in the water route switches the chamber 5 in through the screw thread spiro union, rely on sealing

washer

14, 25 to realize sealed effect simultaneously.

The two waterway switching cavities 5 are arranged side by side with the mixing spool cavity 33, and are symmetrically distributed on two sides of the mixing spool cavity 33 along the central axis 331 of the mixing spool cavity 33.

The first water inlet 31 and the second water inlet 32 are respectively provided with a water stopping cavity 6, the water stopping cavity 6 and the corresponding waterway switching cavity 5 are arranged side by side, the cavity wall of the water stopping cavity 6 is provided with a water outlet notch 61, and the water outlet notch 61 is directly and transversely communicated with the water inlet channel 51 of the corresponding waterway switching cavity 5; a check valve 62 is arranged in each water-stop cavity 6.

As shown in fig. 1 to 9, in the present embodiment, the upper water inlet of the thermostatic mixing valve core 4 is a cold water inlet 41, and the lower water inlet is a hot water inlet 42, under normal conditions, a cold water source is corresponding to the first water inlet 31, and a hot water source is corresponding to the second water inlet 32, therefore, a switching plug a is placed in the waterway switching cavity 5 corresponding to the first water inlet 31, the switching plug a is screwed with an internal thread 55 of the waterway switching cavity 5 by using an external thread 13 thereon, and a circular plug 12 thereof is just located at a lower conduction neck 54 and just blocks the lower conduction neck 54, under this condition, cold water entering the water inlet channel 51 from the first water inlet 31 flows from the upper conduction neck 53 to a cold water opening of the water outlet channel 521 on the water inlet channel to the mixing valve core cavity 33, and then flows into the cold water inlet 41 of the thermostatic mixing valve core 4; meanwhile, a switching choke plug B is arranged in the waterway switching cavity 5 corresponding to the second water inlet 32, the switching choke plug B is screwed with the internal thread 55 of the waterway switching cavity 5 by using the external thread 24 on the switching choke plug B, the circular blocking block 22 is just positioned on the upper conducting neck 53 and just blocks the upper conducting neck 53, at this time, because the position corresponding to the water inlet channel 51 is the thin-diameter rod 23 of the switching choke plug B, the thin-diameter rod 23 cannot block the water flow channel, when hot water enters the water inlet channel 51 through the second water inlet 32, the hot water flows from the lower conducting neck 54 to the lower water outlet channel 522 thereof to the hot water opening of the water mixing valve core cavity 33, and further flows into the hot water inlet 42 of the constant-temperature water mixing valve core 4; after the cold water and the hot water are mixed in the thermostatic mixing valve core 4, mixed warm water is formed, and then flows out from the water outlet 43 of the thermostatic mixing valve core 4 and flows to the mixed water outlet 34 of the main body 3 through the mixed water opening of the mixing valve core cavity 33.

In practical applications, such situations are encountered: a hot water source corresponds to the first water inlet 31, and a cold water source corresponds to the second water inlet 32, at this time, if the switching plug a and the switching plug B in the two waterway switching cavities 5 are arranged in the manner described above, the water flow in the thermostatic mixing valve element 4 is abnormal, so that hot water enters the cold water inlet 41 of the thermostatic mixing valve element 4, and cold water enters the hot water inlet 42 of the thermostatic mixing valve element 4;

in this case, due to the reasonable arrangement of the present invention, under the condition that the installation does not need to be disassembled again, only the switching plug a and the switching plug B need to be taken out from the original waterway switching cavity 5, and put into the waterway switching cavity 5 of the other party in an exchange manner, as shown in fig. 10, at this time, the circular plug 12 of the switching plug a is just positioned in the lower conducting neck 54 and just blocks the lower conducting neck 54, and in this case, as shown in fig. 11-12, the cold water entering the water inlet channel 51 from the second water inlet 32 flows from the upper conducting neck 53 to the cold water opening of the water mixing valve core cavity 33 through the upper water outlet channel 521, and then flows into the cold water inlet 41 of the thermostatic valve core 4; meanwhile, a switching plug B is arranged in the waterway switching cavity 5 corresponding to the first water inlet 31, the switching plug B is screwed with an internal thread 55 of the waterway switching cavity 5 by using an external thread 24 on the switching plug B, and the circular blocking block 22 is just positioned on the upper conduction necking 53 and just blocks the upper conduction necking 53, at this time, when hot water enters the water inlet channel 51 through the first water inlet 31, the hot water flows from the lower conduction necking 54 to the lower water outlet channel 522 of the lower conduction necking to the hot water opening of the water mixing valve core cavity 33, and then flows into the hot water inlet 42 of the constant-temperature water mixing valve core 4; after the cold water and the hot water are mixed in the thermostatic mixing valve core 4, mixed warm water is formed, and then flows out from the water outlet 43 of the thermostatic mixing valve core 4 and flows to the mixed water outlet 34 of the main body 3 through the mixed water opening of the mixing valve core cavity 33.

As described above, only the switching plugs in the two waterway switching chambers 5 need to be exchanged, so that the water flows in the waterway switching chambers 5 are all changed in direction, and the waterway for changing the hot and cold water can be changed lightly without refitting the cold and hot water source and reinstalling the constant-temperature reverse water inlet switching structure, thereby ensuring that the water flows entering the cold water inlet 41 and the hot water inlet 42 of the constant-temperature water mixing valve core 4 are normal

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes and modifications may be made by one of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a water route switches end cap which characterized in that: the switching plug comprises two independent switching plugs which are respectively defined as a switching plug A and a switching plug B, the switching plug A comprises an installation base (11) and a circular plug block (12), the circular plug block (12) is connected with the installation base (11), and a sealing ring (121) is arranged on the periphery of the circular plug block (12); the switching plug B comprises a mounting base (21) and a circular plug (22), the circular plug (22) is connected with the mounting base (21) through a small-diameter rod (23), the diameter of the small-diameter rod (23) is smaller than that of the mounting base (21), and at least one sealing ring (221) is arranged on the periphery of the circular plug (22); the diameter of the installation base (21) is larger than or equal to that of the circular plugging block (22), and the outer diameters of the circular plugging blocks (12,22) of the switching plug A and the circular plugging blocks (22) of the switching plug B are the same.

2. The waterway switching plug of claim 1, wherein: and the installation bases (11, 21) of the switching plug A and the switching plug B are both provided with external threads (13, 24).

3. The waterway switching plug of claim 1, wherein: counterbores (112,212) are formed in the top portions (111, 211) of the installation bases (11, 21) of the switching plug A and the switching plug B, and the counterbores (112,212) are polygonal.

4. The utility model provides a reverse switching structure that intakes of constant temperature, contains first water inlet (31), second water inlet (32), mixes water valve core chamber (33) on its main part (3), it leads to the chamber to mix water valve core chamber (33) for one back, and the bottom in case constant temperature chamber is for mixing water export (34), wherein is equipped with in mixing water valve core chamber (33) mixes water valve core (4), mixes water valve core chamber (33) and the cold of its inside water mixing valve core (4), hot water inlet (41, 42) correspond the position and seal and be provided with open structure, are cold water opening (35) and hot water opening (36) respectively, the mixed water export (34) of delivery port (43) through mixing water valve core chamber (33) of water mixing valve core chamber (4) outwards switch on its characterized in that: a water path switching cavity (5) is arranged between the first water inlet (31) and the second water inlet (32) to the water mixing valve core (4), a water inlet channel (51) communicated with the first water inlet (31) or the second water inlet (32) and two water outlet channels (521, 522) are arranged in the water path switching cavity (5), and the two water outlet channels (521, 522) are respectively communicated with cold and hot water inlets (41, 42) of the water mixing valve core (4) in the water mixing valve core cavity (33) one by one; the water inlet channel (51) is positioned between the two water outlet channels (521, 522) and is communicated with each other, the water inlet channel (51) and the two water outlet channels (521, 522) are respectively provided with a communicating necking (53, 54), an upper communicating necking (53) and a lower communicating necking (54) are sequentially arranged, the inner diameter of the upper communicating necking (53) is the same as that of the lower communicating necking (54), and the inner diameter of the upper communicating necking is the same as that of the circular plugging blocks (12,22) of the switching plug A and that of the lower communicating necking (54); the waterway switching plug according to any one of claims 1 to 3 is fixedly arranged in each of the two waterway switching cavities (5), the circular plug (12) of the switching plug A is plugged in the lower conduction necking (54) in one waterway switching cavity (5), and the circular plug (22) of the switching plug B is plugged in the upper conduction necking (53) in the other waterway switching cavity (5).

5. A constant temperature reverse water inlet switching structure as claimed in claim 4, wherein: two water routes switch chamber (5) inner wall and all are equipped with internal thread (55), switch end cap A or switch end cap B and all be fixed in water route switch chamber (5) through the screw thread spiro union.

6. A constant temperature reverse water inlet switching structure as claimed in claim 4, wherein: two water routes switch the chamber and set up side by side with mixing water case chamber, and along the axis symmetric distribution in mixing the both sides in water case chamber.

7. A constant temperature reverse water inlet switching structure as claimed in claim 4, wherein: first water inlet (31) and second water inlet (32) punishment do not are equipped with stagnant water chamber (6), set up a check valve (62) in stagnant water chamber (6) respectively, stagnant water chamber (6) chamber wall sets up a water breach (61), and this water breach (61) and the inhalant canal (51) intercommunication in corresponding water route switching chamber (5) are gone out.

8. A constant temperature reverse water inlet switching structure as claimed in claim 7, wherein: stagnant water chamber (6) and the waterway switching chamber (5) that corresponds set up side by side, and the inhalant canal (51) that goes out water breach (61) and the waterway switching chamber (5) that corresponds in stagnant water chamber (6) chamber wall directly transversely switches on.

9. A constant temperature reverse water inlet switching structure as claimed in claim 1, wherein: the water mixing valve core is a constant-temperature water mixing valve core (4).