A constant temperature reverse water inlet switching structure

Abstract

A water circuit switching plug and a constant temperature reverse water inlet switching structure, the water circuit switching plug is composed of a switching plug A and a switching plug B, respectively, the switching plug A comprises a mounting base and a circular block, the circular block is connected to the mounting base, and a sealing ring is provided on the outer periphery of the circular block; the switching plug B comprises a mounting base and a circular block, the circular block is connected to the mounting base via a thin diameter rod, the diameter of the thin diameter rod is smaller than the diameter of the mounting base, and at least one sealing ring is provided on the outer periphery of the circular block; the diameter of the mounting base is greater than or equal to the circular block, the outer diameters of the circular blocks of the switching plug A and the switching plug B are the same, the water inlet direction of cold and hot water can be easily changed by using the switching plug A and the switching plug B interchangeably, without the need to disassemble and reinstall in the event of a wrong direction.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, in particular to a water channel switching plug and a constant temperature reverse water inlet switching structure. Background Art

[0002] Among the existing bathroom products, some products have pre-buried cold and hot water pipes connected to the cold and hot water sources respectively. However, during the installation process, the installers may install the cold and hot water pipes in reverse; or in some occasions, the original direction of the cold and hot water sources is opposite to the direction of the cold and hot water inlet holes of the valve core product, resulting in the need to dismantle and reinstall the cold and hot water pipes or the cold and hot water sources, which is very unrealistic in actual situations and wastes manpower and financial resources.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Summary of the invention

[0004] The purpose of the present invention is to provide a water channel switching plug which can switch the cold and hot water inlet directions of a water mixing valve core at any time and a constant temperature reverse water inlet switching structure.

[0005] To achieve the above-mentioned purpose, the specific scheme is as follows: a water channel switching plug, comprising two independent switching plugs, respectively defined as switching plug A and switching plug B, wherein the switching plug A comprises a first mounting base and a first circular block, wherein the first circular block is connected to the first mounting base, and a first sealing ring is provided on the outer periphery of the first circular block; the switching plug B comprises a second mounting base and a second circular block, wherein the second circular block is connected to the second mounting base through a thin diameter rod, the diameter of the thin diameter rod is smaller than the diameter of the second mounting base, and at least one second sealing ring is provided on the outer periphery of the second circular block; the diameter of the second mounting base is greater than or equal to the second circular block, and the outer diameters of the first circular block and the first circular block of the switching plug A and the switching plug B are the same.

[0006] Furthermore, the first and second mounting bases of the switching plug A and the switching plug B are both provided with external threads.

[0007] Furthermore, the first and second mounting bases of the switching plug A and the switching plug B are provided with countersunk holes at the top, and the countersunk holes are polygonal.

[0008] A constant temperature reverse water inlet switching structure, the main body of which includes a first water inlet, a second water inlet, and a mixing valve core cavity, the mixing valve core cavity is a through cavity connected front to back, the bottom of the valve core constant temperature cavity is a mixed water outlet, wherein a mixing valve core is provided in the mixing valve core cavity, and the mixing valve core cavity and the cold and hot water inlets of the mixing valve core inside it are sealed with opening structures at corresponding positions, which are a cold water opening and a hot water opening respectively, and the water outlet of the mixing valve core is connected to the outside through the mixed water outlet of the mixing valve core cavity, a water path switching cavity is provided between the first water inlet and the second water inlet leading to the mixing valve core, the water path switching cavity is provided with a water inlet channel connected to the first water inlet or the second water inlet, and two water outlet channels, the two water outlet channels , are respectively connected one by one with the cold and hot water inlets of the mixing valve core in the mixing valve core cavity; the water inlet channel is located between the two water outlet channels and are connected to each other, and a conducting neck is formed between the water inlet channel and the two water outlet channels, respectively, which are an upper conducting neck and a lower conducting neck, respectively, and the inner diameters of the upper conducting neck and the lower conducting neck are the same, and are the same as the outer diameters of the first and second circular blocking blocks of the switching plug A and the switching plug B; the two water channel switching cavities are respectively fixed with the water channel switching plugs described in any one of claims 1 to 4, the first circular blocking block of the switching plug A blocks the lower conducting neck in one of the water channel switching cavities, and the second circular blocking block of the switching plug B blocks the upper conducting neck in the other water channel switching cavity.

[0009] Furthermore, the inner walls of the two water channel switching chambers are both provided with internal threads, and the switching plug A or the switching plug B is fixed in the water channel switching chamber by threaded connection.

[0010] Furthermore, the two water channel switching chambers are arranged side by side with the water mixing valve core chamber, and are symmetrically distributed on both sides of the water mixing valve core chamber along the central axis of the water mixing valve core chamber.

[0011] Furthermore, a water stop cavity is provided at the first water inlet and the second water inlet respectively, a check valve is provided in each water stop cavity, and a water outlet gap is provided on the wall of the water stop cavity, and the water outlet gap is connected to the water inlet channel of the corresponding water channel switching cavity.

[0012] Furthermore, the water-stopping cavity and the corresponding water-channel switching cavity are arranged side by side, and the water outlet notch of the cavity wall of the water-stopping cavity is directly and laterally connected to the water inlet channel of the corresponding water-channel switching cavity.

[0013] Furthermore, the water mixing valve core is a constant temperature water mixing valve core.

[0014] The advantages of this patent are: there is no need to adjust the water inlet direction of cold and hot water, only the water outlet direction of the water channel switching chamber on both sides of the product needs to be quickly adjusted to quickly realize the reverse switching of the water channel; in particular, once the direction error is found, only the switching plugs on both sides need to be exchanged, that is, the switching plug A and the switching plug B are exchanged, and the positive connection between the cold and hot water and the cold and hot water inlets of the internal mixing valve core (constant temperature mixing valve core) can be quickly realized; therefore, it can avoid the waste of extra manpower and material resources due to installation errors or limited on-site conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The detailed description given as non-limiting examples better explains what the invention consists of and how it can be implemented, and furthermore, refers to the accompanying drawings, in which:

[0016] Figure 1 This is an explosion diagram of an embodiment of the present patent;

[0017] Figure 2 This is a schematic diagram of the assembly of the embodiment of the present patent;

[0018] Figure 3 It is a top view of the main body in the embodiment of this patent;

[0019] Figure 4 for Figure 3 Schematic diagram of the cross section along AA;

[0020] Figure 5 for Figure 3 Schematic diagram of the cross section along BB;

[0021] Figure 6 for Figure 2 Schematic diagram from top view;

[0022] Figure 7 for Figure 2 Schematic diagram of top view;

[0023] Figure 8 for Figure 7 Schematic diagram of the cross section along CC;

[0024] Fig. 9 for Figure 7 Schematic diagram of the cross section along DD;

[0025] Fig.10 A schematic diagram of exchanging the switching plug A and the switching plug B;

[0026] Fig.11 for Fig.10 Cross-section diagram of the case Figure 1 ;

[0027] Fig.12 for Fig.10 Cross-section diagram of the case Figure 2 . DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1-12 As shown, a water channel switching plug comprises two independent switching plugs, which are defined as switching plug A and switching plug B respectively, wherein the switching plug A comprises a first mounting base 11 and a first circular blocking block 12, wherein the first circular blocking block 12 is connected to the first mounting base 11, and the outer periphery of the first circular blocking block 12 is provided with two convex edges to form an annular groove 122, and a first sealing ring 121 is embedded in the annular groove 122; the switching plug B comprises a second mounting base 21 and a second circular blocking block 22, wherein the second circular blocking block 22 is connected to the second mounting base 21 through a thin diameter rod 23, and the diameter of the thin diameter rod 23 is smaller than the diameter of the second mounting base 21, and the outer periphery of the second circular blocking block 22 is provided with two convex edges to form an annular groove 222, and a second sealing ring 221 is embedded in the annular groove 222; the outer diameters of the first and second circular blocking blocks 12 and 22 of the switching plug A and the switching plug B are the same.

[0030] The first and second mounting bases 11 and 21 of the switching plug A and the switching plug B are provided with external threads 13 and 24 .

[0031] The first and second mounting bases 11, 12 of the switching plug A and the switching plug B have countersunk holes 112, 212 at their tops 111, 211. The countersunk holes 112, 212 are polygonal, which are convenient for insertion and rotation by corresponding polygonal wrenches to achieve tightening and removal. In this embodiment, the countersunk holes 112, 212 are hexagonal and a hexagonal wrench is used.

[0032] A constant temperature reverse water inlet switching structure, the main body 3 of which includes a first water inlet 31, a second water inlet 32, and a mixing valve core cavity 33, 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, wherein a mixing valve core is arranged in the mixing valve core cavity 33, and the mixing valve core in this embodiment uses a more commonly used constant temperature mixing valve core 4, which is fixed in the mixing valve core cavity 33 by a valve core pressure cap 44, and the mixing valve core cavity 33 and the cold and hot water inlets 42 of the constant temperature mixing valve core 4 inside it are connected. The corresponding positions are sealed with openings, which are a cold water opening and a hot water opening respectively. The water outlet 43 of the constant temperature mixing valve core 4 is communicated to the outside through the mixed water outlet 34 of the mixing valve core chamber 33. A water path switching chamber 5 is provided between the first water inlet 31 and the second water inlet 32 ​​leading to the constant temperature mixing valve core 4. The water path switching chamber 5 is provided with a water inlet channel 51 communicated with the first water inlet 31 or the second water inlet 32, and two water outlet channels 521 and 522, which are respectively an upper water outlet channel 521 and a lower water outlet channel 522. The water outlet channel 522, the upper water outlet channel 521 is connected to the cold water inlet 41 of the water mixing valve core chamber 33, and the lower water outlet channel 522 is connected to the hot water inlet 42 of the water mixing valve core chamber 33; the water inlet channel 51 is clamped between the two water outlet channels 521, 522 and are connected to each other, and a conducting neck is formed between the water inlet channel 51 and the two water outlet channels 521, 522, which are an upper conducting neck 53 and a lower conducting neck 54 respectively; the inner diameter of the upper conducting neck 53 is the same as that of the lower conducting neck 54, And the outer diameter size of the first and second circular blocking blocks 12 and 22 are the same as those of the switching plugs A and the switching plugs B. The above-mentioned water channel switching plugs are fixedly installed in the two water channel switching chambers 5. The water channel switching plugs select the use of switching plugs A or switching plugs B according to the directions of the cold and hot water channels. The first circular blocking block 12 of the switching plug A blocks the lower conductive neck in one of the water channel switching chambers 5, and the second circular blocking block 22 of the switching plug B blocks the upper conductive neck 53 in the other water channel switching chamber 5.

[0033] Internal threads 55 are provided on the inner walls of the two waterway switching chambers 5. The switching plug A or the switching plug B is fixed in the waterway switching chamber 5 by threaded connection, and the sealing effect is achieved by relying on the sealing rings 14 and 25.

[0034] The two water channel switching chambers 5 are arranged side by side with the water mixing valve core chamber 33 , and are symmetrically distributed on both sides of the water mixing valve core chamber 33 along the central axis 331 of the water mixing valve core chamber 33 .

[0035] A water stop chamber 6 is respectively provided at the first water inlet 31 and the second water inlet 32. The water stop chamber 6 and the corresponding water channel switching chamber 5 are arranged side by side. A water outlet gap 61 is provided on the wall of the water stop chamber 6. The water outlet gap 61 is directly and laterally connected with the water inlet channel 51 of the corresponding water channel switching chamber 5. A check valve 62 is provided in each of the water stop chambers 6.

[0036] like Figure 1-Figure 9 As shown, in the present embodiment, the upper water inlet of the thermostatic water mixing valve core 4 is the cold water inlet 41, and the lower water inlet is the hot water inlet 42. Under normal circumstances, the first water inlet 31 corresponds to the cold water source, and the second water inlet 32 ​​corresponds to the hot water source. Therefore, a switching plug A is placed in the water path switching chamber 5 corresponding to the first water inlet 31. The switching plug A is screwed with the internal thread 55 of the water path switching chamber 5 using the external thread 13 thereon, and its first circular blocking block 12 is just located at the lower conductive neck 54 and just blocks the lower conductive neck 54. In this case, the cold water entering the water inlet channel 51 from the first water inlet 31 flows from the upper conductive neck 53 to the upper water outlet channel 521 thereof to the cold water opening of the water mixing valve core chamber 33, and then flows into the cold water inlet 41 of the thermostatic water mixing valve core 4; at the same time, the water corresponding to the second water inlet 32 A switching plug B is placed in the water path switching chamber 5. The switching plug B is screwed with the internal thread 55 of the water path switching chamber 5 by using the external thread 24 thereon. Its second circular blocking block 22 is just located at the upper conductive neck 53 and just blocks the upper conductive neck 53. At this time, since the position corresponding to the water inlet channel 51 is the thin-diameter rod 23 of the switching plug B, the thin-diameter rod 23 will not block the water flow channel. Therefore, when hot water enters the water inlet channel 51 through the second water inlet 32, it will flow from the lower conductive neck 54 to the lower water outlet channel 522 to the hot water opening of the mixing water valve core chamber 33, and then flow into the hot water inlet 42 of the constant temperature mixing water valve core 4; after the cold and hot water are mixed in the constant temperature mixing water valve core 4, mixed warm water is formed, and then flows out from the water outlet 43 of the constant temperature mixing water valve core 4, and flows to the mixed water outlet 34 of the main body 3 through the mixed water opening of the mixing water valve core chamber 33.

[0037] In actual application, such a situation may be encountered: the first water inlet 31 corresponds to a hot water source, and the second water inlet 32 ​​corresponds to a cold water source. At this time, if the switching plugs A and B in the two waterway switching chambers 5 are set in the manner described above, it will cause abnormal water flow in the thermostatic water mixing valve core 4, causing hot water to enter the cold water inlet 41 of the thermostatic water mixing valve core 4 and cold water to enter the hot water inlet 42 of the thermostatic water mixing valve core 4;

[0038] In this case, due to the reasonable setting of the present invention, without the need for re-disassembly and re-installation, it is only necessary to take out the switching plug A and the switching plug B from the original waterway switching cavity 5 and replace them in the other party's waterway switching cavity 5. Fig.10 As shown, at this time, the first circular block 12 of the switching plug A is just located at the lower conductive neck 54 and just blocks the lower conductive neck 54. In this case, Figure 11-12As shown, the cold water entering the water inlet channel 51 from the second water inlet 32 ​​flows from the upper conductive neck 53 to the upper water outlet channel 521 thereof to the cold water opening of the water mixing valve core chamber 33, and then flows into the cold water inlet 41 of the thermostatic water mixing valve core 4; at the same time, a switching plug B is placed in the water circuit switching chamber 5 corresponding to the first water inlet 31, and the switching plug B is screwed with the internal thread 55 of the water circuit switching chamber 5 by using the external thread 24 thereon, and the second circular block 22 is just located at the upper conductive neck 53, And it just blocks the upper conductive neck 53. At this time, when hot water enters the water inlet channel 51 through the first water inlet 31, it will flow from the lower conductive neck 54 to the lower water outlet channel 522 to the hot water opening of the mixing water valve core chamber 33, and then flow into the hot water inlet 42 of the constant temperature mixing water valve core 4; after the cold and hot water are mixed in the constant temperature mixing water valve core 4, mixed warm water is formed, and then flows out from the water outlet 43 of the constant temperature mixing water valve core 4, and flows through the mixed water opening of the mixing water valve core chamber 33 to the mixed water outlet 34 of the main body 3.

[0039] As described above, it is only necessary to exchange the switching plugs in the two water path switching chambers 5 so that the water flow in the water path switching chambers 5 is redirected. This allows the water paths of the hot and cold water to be easily changed without refitting the hot and cold water sources or reinstalling the constant temperature reverse water inlet switching structure, thereby ensuring that the water flows into the cold water inlet 41 and the hot water inlet 42 of the constant temperature mixing valve core 4 are in the right direction.

[0040] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0043] The above embodiments and illustrations do not limit the product form and style of the present invention. Any appropriate changes and modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A constant temperature reverse water inlet switching structure, wherein the main body (3) comprises a first water inlet (31), a second water inlet (32), and a water mixing valve core cavity (33), wherein the water mixing valve core cavity (33) is a through cavity that is connected from front to back, and the bottom of the valve core constant temperature cavity is a mixed water outlet (34), wherein a water mixing valve core (4) is provided in the water mixing valve core cavity (33), and an opening structure is sealed at positions corresponding to the cold and hot water inlets (41, 42) of the water mixing valve core (4) inside the water mixing valve core cavity (33), which are a cold water opening (35) and a hot water opening (36), respectively, and the water outlet (43) of the water mixing valve core (4) is connected to the outside through the mixed water outlet (34) of the water mixing valve core cavity (33), characterized in that: A water path switching chamber (5) is provided between the first water inlet (31) and the second water inlet (32) leading to the water mixing valve core (4); the water path switching chamber (5) is provided with a water inlet channel (51) communicating with the first water inlet (31) or the second water inlet (32), and two water outlet channels (521, 522); the two water outlet channels (521, 522) are respectively communicated with the cold water inlet (41, 42) and the hot water inlet (42, 42) of the water mixing valve core (4) in the water mixing valve core chamber (33); the two water path switching chambers (5) are respectively provided with water path switching plugs; the water path switching chamber (5) is provided with a water path switching plug ... The switching plug comprises two independent switching plugs, which are defined as switching plug A and switching plug B respectively. The switching plug A comprises a first mounting base (11) and a first circular blocking block (12). The first circular blocking block (12) is connected to the first mounting base (11). A first sealing ring (121) is provided on the outer periphery of the first circular blocking block (12). The switching plug B comprises a second mounting base (21) and a second circular blocking block (22). The second circular blocking block (22) is connected to the second mounting base (21) via a thin-diameter rod (23). The diameter of the thin-diameter rod (23) is smaller than the diameter of the second mounting base (21); at least one second sealing ring (221) is provided on the outer periphery of the second circular block (22); the diameter of the second mounting base (21) is greater than or equal to the second circular block (22); the outer diameters of the first circular block (12) and the second circular block (22) of the switching plug A and the switching plug B are the same; the water inlet channel (51) is located between the two water outlet channels (521, 522) and are connected to each other; and a connection is formed between the water inlet channel (51) and the two water outlet channels (521, 522). The constrictions (53, 54) are respectively an upper conductive constriction (53) and a lower conductive constriction (54); the inner diameters of the upper conductive constriction (53) and the lower conductive constriction (54) are the same, and are the same as the outer diameters of the first circular block (12) and the second circular block (22) of the switching plug A and the switching plug B; the first circular block (12) of the switching plug A blocks the lower conductive constriction (54) in one of the waterway switching chambers (5), and the circular block (22) of the switching plug B blocks the upper conductive constriction (53) in the other waterway switching chamber (5).

2. A constant temperature reverse water inlet switching structure as claimed in claim 1, characterized in that: The first mounting base (11) and the second mounting base (21) of the switching plug A and the switching plug B are both provided with external threads (13, 24).

3. A constant temperature reverse water inlet switching structure as claimed in claim 1, characterized in that: The first mounting base (11) and the second mounting base (21) of the switching plug A and the switching plug B are provided with countersunk holes (112, 212) at their tops (111, 211), and the countersunk holes (112, 212) are polygonal.

4. A constant temperature reverse water inlet switching structure as claimed in claim 1, characterized in that: The inner walls of the two water channel switching chambers (5) are both provided with internal threads (55), and the switching plug A or the switching plug B is fixed in the water channel switching chamber (5) by threaded connection.

5. A constant temperature reverse water inlet switching structure as claimed in claim 1, characterized in that: The two water channel switching chambers are arranged side by side with the water mixing valve core chamber, and are symmetrically distributed on both sides of the water mixing valve core chamber along the central axis of the water mixing valve core chamber.

6. A constant temperature reverse water inlet switching structure as claimed in claim 1, characterized in that: A water stop cavity (6) is provided at the first water inlet (31) and the second water inlet (32), respectively. A check valve (62) is provided in each of the water stop cavities (6). A water outlet notch (61) is provided on the cavity wall of the water stop cavity (6), and the water outlet notch (61) is communicated with a water inlet channel (51) of the corresponding water channel switching cavity (5).

7. A constant temperature reverse water inlet switching structure as claimed in claim 6, characterized in that: The water-stop chamber (6) and the corresponding waterway switching chamber (5) are arranged side by side, and the water outlet notch (61) of the chamber wall of the water-stop chamber (6) is directly and transversely connected to the water inlet channel (51) of the corresponding waterway switching chamber (5).

8. A constant temperature reverse water inlet switching structure as claimed in claim 1, characterized in that: The water mixing valve core is a constant temperature water mixing valve core (4).

Images