A waterway switching valve core and a constant temperature water inlet valve structure

Abstract

A water circuit switching valve core and a thermostatic water inlet valve structure, comprising a shell, an adjusting rod, a movable sleeve and a mounting seat, wherein a mounting hole groove is provided on the top of the shell, and two upper and lower water outlets are provided on the side wall, which are an upper water outlet and a lower water outlet respectively; the movable sleeve is located in the shell, and two sets of sealing rings are provided on the outer wall of the movable sleeve, and the spacing between the two sets of sealing rings is sufficient to block the upper water outlet and the lower water outlet, and the outer wall between the two sets of sealing rings is defined as a barrier wall; the adjusting rod is arranged in the mounting hole groove of the shell so as to be horizontally rotatable only, and the movable sleeve moves up and down as the adjusting rod rotates back and forth. During the up and down movement, the barrier wall outside the movable sleeve switches to block the upper water outlet or the lower water outlet of the shell to close the upper water outlet or the lower water outlet; the mounting seat is fixed under the shell, and a water inlet is provided on the mounting seat; when using this patent, there is no need to adjust the water inlet direction of cold and hot water, and only the water outlet direction of the water circuit switching valve core on both sides of the thermostatic water inlet valve structure needs to be quickly adjusted to quickly realize the reverse switching of the water circuit.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, and in particular to a waterway switching valve core and a constant temperature water inlet valve 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 thermostatic water inlet valve 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 object of the present invention is to provide a constant temperature reverse water inlet valve structure which can change the cold and hot water inlet directions of a water mixing valve core at any time.

[0005] To achieve the above-mentioned purpose, the specific method is as follows: a water circuit switching valve core, comprising a shell, an adjusting rod, a movable sleeve and a mounting seat, the shell being provided with a mounting hole groove on the top, and two upper and lower water outlets on the side wall, which are an upper water outlet and a lower water outlet respectively; the movable sleeve is located in the shell, and two groups of sealing rings are arranged on the outer wall of the movable sleeve, and the spacing between the two groups of sealing rings is sufficient to block the upper water outlet and the lower water outlet, and the outer wall between the two groups of sealing rings is defined as a barrier wall; the adjusting rod is arranged in the mounting hole groove of the shell so as to be horizontally rotatable only, and the movable sleeve moves up and down as the adjusting rod rotates back and forth, and during the up and down movement, the barrier wall outside the movable sleeve switches to block the upper water outlet or the lower water outlet of the shell to close the upper water outlet or the lower water outlet; the mounting seat is fixed under the shell, and a water inlet is arranged on the mounting seat.

[0006] Furthermore, a threaded section is provided at the front end of the adjusting rod; the movable sleeve is provided with an internal thread corresponding thereto, and the threaded section of the adjusting rod is screwed to the internal thread of the movable sleeve; the mounting seat is provided with two guide columns extending into the shell, and two guide grooves are provided at corresponding positions of the movable sleeve, and the two guide columns are respectively inserted into the corresponding guide grooves, and when the adjusting rod rotates, the screw drives the movable sleeve to move up or down along the guide columns in the shell.

[0007] Furthermore, a transverse reinforcement strip is provided at the top of the movable sleeve, an internal threaded hole is provided in the middle of the transverse reinforcement strip, and the threaded section of the adjusting rod is screwed into the internal threaded hole.

[0008] In some embodiments, a check valve is further provided, which is sealed at the water inlet of the mounting seat; a circle of convex edges is extended into the shell at the water inlet of the mounting seat to form a cavity, and the check valve is sealed in the cavity.

[0009] Furthermore, the adjusting rod includes a rotating part and a threaded section, an outward-expanding flange is provided between the rotating part and the threaded section, the diameter of the flange is larger than the diameter of the mounting hole slot of the shell, the rotating part of the adjusting rod extends from the inside of the shell to the outside of the mounting hole slot, the flange is pressed against the bottom of the mounting hole slot, and at the same time, the rotating part extends out of the shell and an annular groove is provided at the top end surface of the shell, and a retaining ring is clamped in the annular groove, so that the adjusting rod can rotate horizontally under force.

[0010] A countersunk hole is arranged on the top of the adjusting rod, and the countersunk hole is polygonal.

[0011] A constant temperature water inlet valve structure, the main body of which comprises a first water inlet, a second water inlet, a mixing valve core cavity, and a mixed water outlet, wherein a mixing valve core is placed in the mixing valve core cavity, and an opening structure is sealed at the mixing valve core cavity and the cold and hot water inlets and water outlets of the mixing valve core inside the mixing valve core, which are respectively a cold water opening, a hot water opening and a mixing water opening, and the water outlet of the mixing valve core is connected to the mixed water outlet through the mixing water opening of the mixing valve core cavity, and a water path switching cavity is provided between the first water inlet and the mixing water valve core cavity and between the second water inlet and the mixing water valve core cavity, and the cavity wall of the water path switching cavity is provided with a hot water outlet. A water inlet channel and two water outlet channels are provided, the water inlet channels of the two water switching chambers are respectively connected to the corresponding first water inlet or second water inlet, and the two water outlet channels are respectively connected to the cold water opening and the hot water opening of the mixing valve core chamber; each of the two water switching chambers is provided with a water switching valve core as described in any one of claims 1 to 4, the upper water outlet and the lower water outlet of the water switching valve core are respectively connected to the two water outlet channels of the water switching chamber, and the barrier wall outside the movable sleeve is correspondingly located outside the upper water outlet or the lower water outlet as required; the water inlet of the water switching core mounting seat is connected to the water inlet channel of the water switching chamber.

[0012] Furthermore, the water inlet channel and the two water outlet channels in the water channel switching chamber are arranged in sequence from bottom to top.

[0013] Furthermore, the water channel switching chambers on both sides are arranged side by side with the mixing valve core chamber, and are symmetrically distributed on both sides of the mixing valve core chamber along the central axis of the mixing valve core chamber.

[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 valve cores on both sides of the product needs to be quickly adjusted to quickly realize the reverse switching of the water channel; in particular, only one water channel switching valve core needs to be used to quickly realize the positive connection or reverse connection of the cold and hot water with the cold and hot water inlets of the internal mixing valve core (constant temperature mixing valve core). Once the wrong direction is found, it is only necessary to change the barrier wall outside the movable sleeve of the water channel switching valve core to be located outside the upper water outlet or the lower water outlet of the shell to close the upper water outlet or the lower water outlet, so that the incoming cold and hot water can be reversed and flow into the mixing valve core (constant temperature mixing valve core) in the correct direction; therefore, it can avoid the loss of greater manpower and material resources due to installation errors and wrong cold and hot water directions. 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 exploded schematic diagram of an embodiment of this patent;

[0017] Figure 2 , 3 This is a cross-sectional schematic diagram of the water channel switching plug in this patent;

[0018] Figure 4 It is a schematic cross-sectional view of the main body of the thermostatic water inlet valve structure in this patent;

[0019] Figure 5 It is a schematic diagram of the cross-section of the assembled medium constant temperature water inlet valve in the case of a forward water path;

[0020] Figure 6 This is the overall assembly diagram of this patent;

[0021] Figure 7 This is a schematic cross-sectional view of the structure of the medium thermostatic water inlet valve after assembly when the cold and hot water sources are reversed in the first embodiment;

[0022] Figure 8 This is a cross-sectional schematic diagram of the second embodiment when the cold and hot water inlets of the thermostatic water mixing valve core are reversed. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-3As shown, a waterway switching valve core 10 comprises a housing 1, an adjusting rod 2, a movable sleeve 3 and a mounting seat 36. The housing 1 is provided with a mounting hole groove 11 on the top, and the side wall is provided with two upper and lower water outlets, namely an upper water outlet 12 and a lower water outlet 13. In this embodiment, the upper water outlet 12 and the lower water outlet 13 are both arranged in a shape surrounding the side wall, so that the upper water outlet 12 and the lower water outlet 13 are annular water outlets; Figure 1-3 As shown, the movable sleeve 3 is located in the shell body 1, and two groups of sealing rings 32 are arranged at intervals on the outer wall of the movable sleeve 3. The distance between the two groups of sealing rings 32 is sufficient to seal the upper water outlet 12 alone, and is also sufficient to seal the lower water outlet 13 alone. The outer wall between the two groups of sealing rings 32 is defined as a barrier wall 33. In this embodiment, the distance between the two groups of sealing rings 32 is wider than the upper water outlet 12 and also wider than the lower water outlet 13; a transverse reinforcement strip 312 is provided on the top of the movable sleeve 3, and an internal threaded hole 313 is provided in the middle of the transverse reinforcement strip 312; the adjusting rod 2 includes a rotating portion 21 and a threaded section 22, and an outwardly expanded flange 23 is provided between the rotating portion 21 and the threaded section 22, and the diameter of the flange 23 is larger than the diameter of the mounting hole slot 11 of the shell body 1, and the mounting hole slot 11 is provided with an inwardly concave step edge inside the shell body 1, and the size of the inwardly concave step edge is the same as that of the adjusting rod 2. The flange 23 of the section rod 2 is adapted to each other, and the rotating part 21 of the adjusting rod 2 extends from the inside of the shell 1 to the outside of the mounting hole groove 11. The flange 23 is inserted into the concave step edge below the mounting hole groove 11 and fits against the mounting hole groove 11. At the same time, the rotating part 21 extends out of the shell 1 and is provided with an annular groove 14 at the top end surface of the shell 1. A snap ring 311 is snapped into the annular groove 14, so that the adjusting rod 2 can be horizontally rotated in the mounting hole groove 11 under force. Two sealing rings 211 are provided on the periphery of the rotating part 21 to ensure the water channel sealing effect; the threaded section 22 of the adjusting rod 2 is screwed into the internal threaded hole 313 of the movable sleeve 3; the mounting seat 36 is fixed below the shell 1, and a water inlet 37 is provided on the mounting seat 36. Two guide columns 38 extending into the shell 1 are provided on the mounting seat 36, and two guide grooves 35 are provided at the corresponding positions of the movable sleeve 3, such as Figure 1 As shown, the two guide posts 38 are respectively inserted into the corresponding guide grooves 35 of the movable sleeve 3. When the adjusting rod 2 rotates, the threaded section 22 drives the movable sleeve 3 to move up or down in the housing 1 along the guide posts 38. During the up or down movement, the barrier wall 33 outside the movable sleeve 3 switches to block the upper water outlet 12 or the lower water outlet 13 of the housing 1.

[0025] A convex edge 39 is provided at the water inlet 37 of the mounting seat 36 extending into the housing 1 to form a cavity 310. A check valve 4 is sealed in the cavity 310. Water flows from the water inlet 37 of the mounting seat 36 into the movable sleeve 3 through the check valve 4. The guide column 38 is located on the convex edge 39. A countersunk hole 24 is provided on the top of the adjusting rod 2. The countersunk hole 24 is polygonal. In this embodiment, the countersunk hole 24 is hexagonal. A hexagonal wrench 7 with the same cross-sectional shape is inserted into the countersunk hole 24. The two are adapted. By rotating the adjusting rod 2 with the hexagonal wrench 7, the adjusting rod 2 can control the upward and downward movement of the movable sleeve 3.

[0026] The water channel switching chambers 54 on both sides are arranged side by side with the mixing valve core chamber 50 , and are symmetrically distributed on both sides of the mixing valve core chamber 50 along the central axis of the mixing valve core chamber 50 .

[0027] like Figure 4-8 As shown, a thermostatic water inlet valve structure comprises a first water inlet 51, a second water inlet 52, a mixing water valve core cavity 50, and a mixed water outlet 53 on its main body 5, wherein a mixing water valve core is placed in the mixing water valve core cavity 50. In this embodiment, a more common thermostatic water mixing valve core 6 is adopted, and the mixing water valve core cavity 50 and the corresponding parts of the cold and hot water inlets 62 and the water outlet 63 of the thermostatic water mixing valve core 6 inside it are sealed with opening structures, which are respectively a cold water opening 501, a hot water opening 502 and a mixing water opening 503. The water outlet 63 of the thermostatic water mixing valve core 6 is connected to the mixed water outlet 53 through the mixing water opening of the mixing water valve core cavity 50. A water path switching cavity 54 is provided between the first water inlet 51 leading to the mixing water valve core cavity 50 and between the second water inlet 52 leading to the mixing water valve core cavity 50. A water inlet channel 541 and two water outlet channels are provided on the cavity wall of the water path switching cavity 54. 5421, 5422, the water inlet channel 541 and the two water outlet channels 5421, 5422 are arranged in sequence from bottom to top, the water inlet channels 541 of the two water path switching chambers 54 are connected with the corresponding first water inlet 51 or the second water inlet 52, and the water outlet channels 5421, 5422 are connected with the cold water opening 501 and the hot water opening 502 of the mixing valve core chamber 50 respectively; a water path switching valve core 10 is provided in each of the two water path switching chambers 54, the upper water outlet 12 of the water path switching valve core 10 is connected with the water outlet channel 5421 of the water path switching chamber 54, and the lower water outlet 13 is connected with the water outlet channel 5422 of the water path switching chamber 54, and the barrier wall 33 outside the movable sleeve 3 is located outside the upper water outlet 12 or the lower water outlet 13 as needed; the water inlet 37 of the water path switching core mounting seat 36 is connected with the water inlet channel 541 of the water path switching chamber 54.

[0028] The upper and lower positions of the movable sleeve 3 in the shell 1 are adjusted as needed to select the external barrier wall 33 of the movable sleeve 3 to be located outside the upper water outlet 12 or the lower water outlet 13. When the external barrier wall 33 of the movable sleeve 3 is located at the upper water outlet 12, the water outlet of the upper water outlet 12 is blocked, and the lower water outlet 13 is exposed, then the water in the movable sleeve 3 flows out from the lower water outlet 13; on the contrary, when the external barrier wall 33 of the movable sleeve 3 is located at the lower water outlet 13, the water outlet of the lower water outlet 13 is blocked, and the upper water outlet 12 is exposed, then the water in the movable sleeve 3 flows out from the upper water outlet 12.

[0029] Embodiment 1:

[0030] like Figure 5 As shown, under normal conditions, the left side of a thermostatic water inlet valve structure is the second water inlet 52, which corresponds to the hot water source; the right side is the first water inlet 51, which corresponds to the cold water source; in this embodiment, the cold water inlet 61 of the thermostatic water mixing valve core 6 is located at the top and communicated with the upper water outlet 12 of the waterway switching valve core 10 on both sides, and the hot water inlet 62 of the thermostatic water mixing valve core 6 is located at the bottom and communicated with the lower water outlet 13 of the waterway switching valve core 10 on both sides;

[0031] At this time, the movable sleeve 3 of the water circuit switching valve core 10 in the water circuit switching chamber 54 on the left is adjusted upward, so that the external barrier wall 33 is located at the upper water outlet 12. Since the upper and lower positions of the external barrier wall 33 are both provided with sealing rings 32, the two sealing rings 32 are tightly matched with the housing 1, effectively blocking the water from flowing out of the upper water outlet 12, and the hot water flows out from the lower water outlet 13 of the water circuit switching valve core 10 on the left, and then enters the hot water inlet 62 of the constant temperature mixing valve core 6 through the water outlet channel 5422; the water circuit on the right The movable sleeve 3 of the water circuit switching valve core 10 in the switching chamber 54 is adjusted downward so that the external barrier wall 33 is located at the lower water outlet 13, and the two sealing rings 32 block the water flow out of the lower water outlet 13. The cold water flows out from the upper water outlet 12 of the right water circuit switching valve core 10, and then enters the cold water inlet 61 of the constant temperature mixing water valve core 6 through the water outlet channel 5421; after the cold water and the hot water are mixed in the constant temperature mixing water valve core 6, they flow out to the mixed water outlet 53 of the main body 5 through the water outlet 63 of the constant temperature mixing water valve core 6.

[0032] If you encounter Figure 7 In the situation shown, the left side is the second water inlet 52, but the left side corresponds to the cold water source; the right side is the first water inlet 51, but the right side corresponds to the hot water source. If the movable sleeve 3 of the water channel switching valve core 10 in the two water channel switching chambers 54 is set in the manner described above, it will cause abnormal water flow in the constant temperature mixing valve core 6, that is, hot water will enter the cold water inlet 61 of the constant temperature mixing valve core 6, and cold water will enter the hot water inlet 62 of the constant temperature mixing valve core 6;

[0033] In this case, due to the reasonable configuration of the present invention, it is only necessary to Figure 6-7 As shown, a hexagonal wrench 7 is inserted into the countersunk hole 24 of the adjusting rod 2, and the adjusting rod 2 is rotated by the hexagonal wrench 7 to adjust the direction of the movable sleeve 3 in each water channel switching valve core:

[0034] like Figure 7 As shown, the movable sleeve 3 of the water path switching valve core 10 in the water path switching chamber 54 on the left is adjusted downward, so that the external barrier wall 33 is located at the lower water outlet 13 to block the water flow out of the lower water outlet 13, and the cold water on the left flows out from the upper water outlet 12 of the left water path switching valve core 10, and then enters the cold water inlet 61 of the constant temperature mixing water valve core 6; the movable sleeve 3 of the water path switching valve core 10 in the water path switching chamber 54 on the right is adjusted upward, so that the external barrier wall 33 is located at the upper water outlet 12 to block the water flow out of the upper water outlet 12, and the hot water on the right flows out from the lower water outlet 13 of the right water path switching valve core 10, and then enters the hot water inlet 62 of the constant temperature mixing water valve core 6; after the cold water and the hot water are mixed in the constant temperature mixing water valve core 6, they flow out to the mixed water outlet 53 of the main body 5 through the water outlet 63 of the constant temperature mixing water valve core 6; as shown Figure 7 As shown in FIG. 5 , a switch valve core 8 is provided on the mixed water outlet 53 , and the valve core switch 8 is used to control the water outlet.

[0035] Embodiment 2:

[0036] like Figure 8 As shown, the left side is the second water inlet 52, and the left side corresponds to the hot water source; the right side is the first water inlet 51, and the right side corresponds to the cold water source; in this embodiment, the hot water inlet 62 of the thermostatic water mixing valve core 6 is located at the top and communicated with the upper water outlet 12 of the waterway switching valve core 10 on both sides, and the cold water inlet 61 of the thermostatic water mixing valve core 6 is located at the bottom and communicated with the lower water outlet 13 of the waterway switching valve core 10 on both sides;

[0037] At this time, it is only necessary to adjust the movable sleeve 3 in the water circuit switching valve core 10 and change the water outlet direction of the water circuit switching valve cores 10 on both sides. The water circuits of the cold and hot water can be easily changed without refitting the cold and hot water sources or reinstalling the constant temperature water inlet valve structure, thereby ensuring that the water flows entering the cold water inlet 61 and the hot water inlet 62 of the constant temperature mixing water valve core 6 are correctly configured.

[0038] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "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.

[0040] 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 directly connected or indirectly connected 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.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[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 thermostatic water inlet valve structure, characterized in that: The main body (5) comprises a first water inlet (51), a second water inlet (52), a water mixing valve core cavity (50), and a mixed water outlet (53), wherein a water mixing valve core (6) is placed in the water mixing valve core cavity (50), and an opening structure is sealed at the corresponding positions of the cold and hot water inlets (61, 62) and the water outlet (63) of the water mixing valve core (6) inside the water mixing valve core cavity (50), which are respectively a cold water opening (501), a hot water opening (502) and a mixed water opening (503), and the water outlet (63) of the water mixing valve core (6) is connected to the mixed water outlet (53) through the mixed water opening (503) of the water mixing valve core cavity (50), and the characteristic is that: the first water inlet (51) leads to the mixing water valve core cavity (50) between A water circuit switching chamber (54) is provided between the first water inlet (51) and the second water inlet (52) leading to the water mixing valve core chamber (50); a water inlet channel (541) and two water outlet channels (5421, 5422) are provided on the chamber wall of the water circuit switching chamber (54); the water inlet channels (541) of the two water circuit switching chambers (54) are respectively connected to the corresponding first water inlet (51) or the second water inlet (52); the two water outlet channels (5421, 5422) are respectively connected to the cold water opening (501) and the hot water opening (502) of the water mixing valve core chamber (50); a water circuit switching valve core (10) is provided in each of the two water circuit switching chambers (54), comprising a housing (1), an adjusting rod (2), a movable sleeve (3) and a mounting seat (36 ), the shell (1) is provided with a mounting hole groove (11) on the top, and the side wall is provided with two upper and lower water outlets, namely an upper water outlet (12) and a lower water outlet (13); the movable sleeve (3) is located in the shell (1), and two sets of sealing rings (32) are arranged on the outer wall of the movable sleeve (3), and the spacing between the two sets of sealing rings (32) is sufficient to block the upper water outlet (12) and the lower water outlet (13), and the outer wall between the two sets of sealing rings (32) is defined as a barrier wall (33); the adjusting rod (2) is arranged in the mounting hole groove (11) of the shell (1) so as to be rotatable only horizontally, and the movable sleeve (3) moves up and down as the adjusting rod (2) rotates back and forth, and the barrier wall (33) outside the movable sleeve (3) moves in the process of moving up and down. 3) switchably blocks the upper water outlet (12) or the lower water outlet (13) of the shell (1) to close the upper water outlet (12) or the lower water outlet (13); the mounting seat (36) is fixed below the shell (1), and the mounting seat (36) is provided with a water inlet (37); the upper water outlet (12) and the lower water outlet (13) of the water circuit switching valve core (10) are respectively connected to the two water outlet channels (5421, 5422) of the water circuit switching chamber (54), and the blocking wall (33) outside the movable sleeve (3) is correspondingly located outside the upper water outlet (12) or the lower water outlet (13) as required; the water inlet (37) of the water circuit switching core mounting seat (36) is connected to the water inlet channel (541) of the water circuit switching chamber (54).

2. A thermostatic water inlet valve structure as claimed in claim 1, characterized in that: The front end of the adjusting rod (2) is provided with a threaded section (22); the movable sleeve (3) is provided with an internal thread corresponding thereto, and the threaded section (22) of the adjusting rod (2) is screwed to the internal thread of the movable sleeve (3); the mounting seat (36) is provided with two guide columns (38) extending into the shell (1), and the movable sleeve (3) is provided with two guide grooves (35) at corresponding positions, and the two guide columns (38) are respectively inserted into the corresponding guide grooves (35), and when the adjusting rod (2) rotates, the screwing drives the movable sleeve (3) to move up or down in the shell (1) along the guide columns (38).

3. A thermostatic water inlet valve structure as claimed in claim 1, characterized in that: A transverse reinforcement strip (312) is provided at the top of the movable sleeve (3), an internal threaded hole (313) is provided in the middle of the transverse reinforcement strip (312), and the threaded section (22) of the adjustment rod (2) is screwed into the internal threaded hole (313).

4. A thermostatic water inlet valve structure as claimed in claim 1, characterized in that: A check valve (4) is also provided, which is sealingly arranged at the water inlet (37) of the mounting seat (36).

5. A thermostatic water inlet valve structure as claimed in claim 4, characterized in that: A convex edge (39) is provided at the water inlet (37) of the mounting seat (36) and extends into the housing (1) to form a cavity (310), and the check valve (4) is sealed in the cavity (310).

6. A thermostatic water inlet valve structure as claimed in claim 2, characterized in that: The adjusting rod (2) comprises a rotating portion (21) and a threaded section (22); an outwardly expanded flange (23) is provided between the rotating portion (21) and the threaded section (22); the diameter of the flange (23) is larger than the diameter of the mounting hole slot (11) of the housing (1); the rotating portion (21) of the adjusting rod (2) extends from the housing (1) to the outside of the mounting hole slot (11); the flange (23) abuts against the bottom of the mounting hole slot (11); the rotating portion (21) extends out of the housing (1) and an annular groove (14) is provided at the top end surface of the housing (1); a snap ring (311) is snapped into the annular groove (14), so that the adjusting rod (2) can only rotate horizontally when subjected to force.

7. A thermostatic water inlet valve structure as claimed in claim 1, characterized in that: The top of the adjusting rod (2) is provided with a countersunk hole (24), and the countersunk hole (24) is polygonal.

8. A thermostatic water inlet valve structure as claimed in claim 7, characterized in that: A water inlet channel (541) and two water outlet channels (5422, 5421) in the water channel switching chamber (54) are arranged in sequence from bottom to top.

9. A thermostatic water inlet valve structure as claimed in claim 1, characterized in that: The water channel switching chambers (54) on both sides are arranged side by side with the mixing valve core chamber (50), and are symmetrically distributed on both sides of the mixing valve core chamber (50) along the central axis of the mixing valve core chamber (50).

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