Thermostatic valve element, thermostatic valve and faucet

Abstract

The utility model provides a thermostatic valve element, a thermostatic valve and a faucet, and relates to the technical field of faucets. The thermostatic valve element comprises a rotating piece, a first movable shaft, a second movable shaft, a first elastic piece and a thermosensitive element. The first movable shaft is connected to the rotating piece, the rotating piece can drive the first movable shaft to move in the preset direction when rotating, a first guide hole and a second guide hole which are communicated are formed in the first movable shaft, the second movable shaft is arranged in the first guide hole and the second guide hole in a sliding and penetrating mode, and the first elastic piece is located in the second guide hole. The thermosensitive element is connected to the end, away from the first guide hole, of the second movable shaft and can extend in the preset direction when the temperature rises or shorten in the preset direction when the temperature drops. According to the thermostatic valve element provided by the invention, based on the structure, the thermosensitive element has higher stability and smoothness in the extension or shortening process, and the conditions of shaking and jamming of the thermosensitive element are improved.

Description

Technical Field

[0001] The present application relates to the technical field of faucets, and in particular to a thermostatic valve core, a thermostatic valve and a faucet. Background Art

[0002] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art.

[0003] A thermostatic valve is a valve structure that mixes cold and hot water to produce a mixed water output. This solves the problem of fluctuating water temperatures and difficulty adjusting them during bathing due to rapid pressure and temperature changes. The core temperature control structure of the thermostatic valve is the thermostatic valve core. Based on the difference between the mixed water temperature and the set temperature, the thermostatic valve core uses the thermal expansion and contraction principle of the built-in thermistor to drive the flow rubber components to control the opening and closing of the cold and hot water inlets, maintaining a nearly constant temperature for the mixed water. However, the thermistor is prone to shaking and jamming during the process of extension and contraction, which can affect the normal operation of the thermostatic valve core. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a thermostatic valve core, a thermostatic valve and a faucet, aiming to solve the technical problem that the thermal sensitive element is prone to shaking and jamming during the use of the thermostatic valve core.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a thermostatic valve core, comprising:

[0007] rotating parts;

[0008] a first movable shaft connected to the rotating member, capable of driving the first movable shaft to move along a preset direction when the rotating member rotates, the preset direction being parallel to the axis of the rotating member, and having a first guide hole and a second guide hole in communication with each other provided on the first movable shaft;

[0009] A second movable shaft is slidably provided in the first guide hole and the second guide hole respectively;

[0010] a first elastic member, located in the second guide hole and connected to the first movable shaft and the second movable shaft respectively;

[0011] The thermal element is connected to one end of the second movable shaft away from the first guide hole, and can extend along the preset direction when the temperature rises or shorten along the preset direction when the temperature drops.

[0012] In one embodiment of the first aspect, the second movable shaft includes a shaft body portion and a connecting portion connected to each other, the shaft body portion is slidably inserted into the first guide hole, the connecting portion is slidably inserted into the second guide hole and connected to the thermal element, and the first elastic member is respectively connected to the connecting portion and the first movable shaft.

[0013] In one embodiment of the first aspect, a length of the first guide hole along the preset direction is smaller than a length of the shaft body along the preset direction.

[0014] In one embodiment of the first aspect, the orthographic projection shapes of the first guide hole, the second guide hole, the shaft body portion and the connecting portion on the projection plane are all circular, the projection plane is perpendicular to the preset direction, the diameter of the first guide hole is smaller than the diameter of the second guide hole, the diameter of the shaft body portion is smaller than the diameter of the connecting portion, the shaft body portion is loosely fitted with the first guide hole, and the connecting portion is loosely fitted with the second guide hole.

[0015] In one embodiment of the first aspect, the thermostatic valve core further includes a limiter connected to an end of the shaft portion away from the connecting portion;

[0016] When the second movable shaft moves to a preset position in a direction away from the rotating member, the limiting member abuts against the first movable shaft, and the direction away from the rotating member is parallel to the preset direction.

[0017] In one embodiment of the first aspect, an annular groove is provided on an outer circumference of an end of the shaft body away from the connecting portion, the limiting member is a snap ring engaged with the annular groove, and an avoidance groove communicating with the first guide hole is provided on an end of the first movable shaft away from the thermal element;

[0018] When the second movable shaft moves to a preset position in a direction away from the rotating member, the snap ring is received in the avoidance groove.

[0019] In one embodiment of the first aspect, a limiting step is formed at the connection between the first guide hole and the second guide hole, the first elastic member is a spring sleeved on the shaft body, the shaft body passes through the spring, and the spring abuts between the connection portion and the limiting step.

[0020] In one embodiment of the first aspect, a first guiding slope is provided at one end of the first guiding hole close to the second guiding hole; and / or a second guiding slope is provided at one end of the second movable shaft away from the thermal element.

[0021] In a second aspect, an embodiment of the present application provides a thermostatic valve, comprising the thermostatic valve core described in any embodiment of the first aspect above.

[0022] In a third aspect, an embodiment of the present application provides a faucet comprising the thermostatic valve described in the embodiment of the second aspect above.

[0023] The beneficial effects of this application are as follows:

[0024] The thermostatic valve core provided by the present application has a first movable shaft provided with a first guide hole and a second guide hole communicating with each other, a second movable shaft slidingly passing through the first guide hole and the second guide hole, a thermosensitive element connected to the end of the second movable shaft away from the first guide hole, and a first elastic member connected to the first movable shaft and the second movable shaft, respectively, provided in the second guide hole. Thus, the first elastic member can relieve force, and the first guide hole and the second guide hole can guide the second movable shaft to slide relative to the first movable shaft, respectively. As a result, the thermosensitive element has greater stability and smoothness during extension or contraction, thereby improving its shaking and jamming, thereby enhancing the performance of the thermostatic valve core.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic structural diagram of a thermostatic valve core provided by an embodiment of the present application is shown;

[0028] Figure 2 Shown Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0029] Figure 3 A schematic diagram of a three-dimensional exploded structure of a thermostatic valve core provided in one embodiment of the present application is shown;

[0030] Figure 4 A schematic structural diagram of a first moving shaft provided by an embodiment of the present application from one perspective is shown;

[0031] Figure 5 Shown Figure 4 Schematic diagram of the cross-sectional structure at the middle BB;

[0032] Figure 6 A schematic structural diagram of a second movable shaft provided by an embodiment of the present application from one perspective is shown;

[0033] Figure 7 Shown Figure 6 Schematic diagram of the cross-sectional structure at CC in the middle.

[0034] Description of main component symbols:

[0035] 100-thermostatic valve core; 110-rotating part; 120-first moving shaft; 121-first guide hole; 122-second guide hole; 123-avoidance groove; 124-limiting step; 125-first guide slope; 130-second moving shaft; 131-shaft body; 1311-annular groove; 1312-second guide slope; 132-connecting part; 140-first elastic part; 150-thermal element; 160-limiting part; 170-housing; 171-cavity; 1711-cold water cavity; 1712-hot water cavity; 172-connecting hole; 173-water outlet; 174-cold water outlet; 175-hot water outlet; 180-flow rubber part; 181-water outlet; 190-second elastic part; X-preset direction. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present application in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0039] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] like Figure 1 As shown, in the first aspect, an embodiment of the present application provides a thermostatic valve core 100, which relates to the field of faucet technology and is mainly used in thermostatic valves to keep the temperature of the mixed water of the faucet in a basically constant state after being adjusted and set by the user.

[0042] Combine Figure 2 and Figure 5 As shown, the thermostatic valve core 100 provided in this embodiment includes: a rotating member 110 , a first movable shaft 120 , a second movable shaft 130 , a first elastic member 140 and a thermal element 150 .

[0043] In which, the first movable shaft 120 is connected to the rotating member 110. When the rotating member 110 rotates, it can drive the first movable shaft 120 to move along a preset direction X. The preset direction X is parallel to the axis of the rotating member 110. The first movable shaft 120 is provided with a first guide hole 121 and a second guide hole 122 that are connected to each other. The second movable shaft 130 is slidably provided in the first guide hole 121 and the second guide hole 122, respectively. The first elastic member 140 is located in the second guide hole 122 and is respectively connected to the first movable shaft 120 and the second movable shaft 130. The thermal element 150 is connected to the end of the second movable shaft 130 away from the first guide hole 121 and can extend along the preset direction X when the temperature increases or shorten along the preset direction X when the temperature decreases.

[0044] It should be noted that since the thermistor 150 is made of hot and cold sensing materials, it has the characteristics of thermal expansion and contraction, that is, when the water temperature of the mixed water is greater than the user-set value, the thermistor 150 will extend along the preset direction X, and when the water temperature of the mixed water is less than the set value, the thermistor 150 will shorten along the preset direction X.

[0045] For example, the rotating member 110 is threadedly connected to the first movable shaft 120, thereby enabling the rotating member 110 to drive the first movable shaft 120 to move along the preset direction X when it rotates. Of course, the rotating member 110 may also be a gear, and the first movable shaft 120 may be provided with a plurality of teeth distributed along the preset direction X. The engagement of the gear with the plurality of teeth can also drive the first movable shaft 120 to move along the preset direction X. The implementation method of the rotating member 110 driving the first movable shaft 120 to move along the preset direction X is not specifically limited herein.

[0046] It is understood that in the thermostatic valve core 100 provided in this embodiment, since the first movable shaft 120 is provided with a first guide hole 121 and a second guide hole 122 that are connected to each other, the second movable shaft 130 is slidably inserted into the first guide hole 121 and the second guide hole 122, respectively, the thermosensitive element 150 is connected to the end of the second movable shaft 130 away from the first guide hole 121, and the second guide hole 122 is provided with a first elastic member 140 that is respectively connected to the first movable shaft 120 and the second movable shaft 130. In this way, the first elastic member 140 can play a force-relieving role, and the first guide hole 121 and the second guide hole 122 can respectively guide the second movable shaft 130 to slide relative to the first movable shaft 120. As a result, the thermosensitive element 150 has higher stability and smoothness during the extension or contraction process, improves its shaking and jamming, and thus improves the working performance of the thermostatic valve core 100.

[0047] like Figure 2 、 Figure 6 and Figure 7 As shown, in one embodiment, the second movable shaft 130 includes a shaft body portion 131 and a connecting portion 132 connected to each other, the shaft body portion 131 is slidably provided in the first guide hole 121, the connecting portion 132 is slidably provided in the second guide hole 122, and is connected to the thermistor 150, and the first elastic member 140 is connected to the connecting portion 132 and the first movable shaft 120 respectively.

[0048] It can be understood that the first guide hole 121 can guide the shaft body 131 to slide relative to the first movable shaft 120 along the preset direction X, and the second guide hole 122 can guide the connecting portion 132 to slide relative to the first movable shaft 120 along the preset direction X, so that the thermistor 150 has higher stability during the extension or shortening process, thereby improving its shaking situation.

[0049] like Figure 1 and Figure 2 As shown, further, the length of the first guide hole 121 along the preset direction X is less than the length of the shaft body 131 along the preset direction X. This not only provides a guiding function for the second movable shaft 130, but also improves the situation where the contact area between the shaft body 131 and the hole wall of the first guide hole 121 is too large, resulting in poor sliding, thereby making the thermal element 150 have higher smoothness and stability during the extension or contraction process.

[0050] like Figures 1 to 3 As shown, further, the orthographic projection shapes of the first guide hole 121, the second guide hole 122, the shaft body portion 131 and the connecting portion 132 on the projection plane are all circular, the projection plane is perpendicular to the preset direction X, the diameter of the first guide hole 121 is smaller than the diameter of the second guide hole 122, the diameter of the shaft body portion 131 is smaller than the diameter of the connecting portion 132, the shaft body portion 131 and the first guide hole 121 are clearance-fitted, and the connecting portion 132 and the second guide hole 122 are clearance-fitted, thereby enabling the shaft body portion 131 to slide in contact with the hole wall of the first guide hole 121, and the connecting portion 132 to slide in contact with the hole wall of the second guide hole 122, thereby enabling the thermistor 150 to have higher stability during the process of extension or shortening.

[0051] like Figure 1 and Figure 2 As shown, further, the thermostatic valve core 100 also includes a limit member 160, which is connected to one end of the shaft body 131 away from the connecting portion 132; when the second movable shaft 130 moves to a preset position in a direction away from the rotating member 110, the limit member 160 abuts against the first movable shaft 120, and the above-mentioned direction away from the rotating member 110 is parallel to the preset direction X.

[0052] It can be understood that the setting of the limiting member 160 can play a limiting role, that is, limit the distance that the second movable shaft 130 moves in the direction away from the rotating member 110.

[0053] like Figure 2 、 Figure 3 and Figure 6 As shown, further, an annular groove 1311 is provided on the outer peripheral side of the end of the shaft body 131 away from the connecting portion 132, the limiting member 160 is a retaining ring clamped at the annular groove 1311, and an avoidance groove 123 connected to the first guide hole 121 is provided at the end of the first movable shaft 120 away from the thermistor 150; when the second movable shaft 130 moves to a preset position in a direction away from the rotating member 110, the retaining ring is accommodated in the avoidance groove 123.

[0054] It is understandable that the setting of the avoidance groove 123 can limit the radial movement of the retaining ring (radially perpendicular to the preset direction X), thereby increasing the stability of the second movable shaft 130 and making the thermal element 150 more stable during the extension or contraction process.

[0055] Of course, for the above embodiment, the limiting member 160 can also be a pin shaft, and a pin hole is provided on the outer peripheral side of the shaft body 131 at one end of the shaft body 131 away from the connecting portion 132. The pin shaft is passed through the pin hole and can abut against the first movable shaft 120. This structure can also limit the distance that the thermistor 150 moves in the direction away from the rotating member 110. No specific restriction is made on the type of the limiting member 160 here.

[0056] like Figure 2 、 Figure 4 and Figure 5 As shown, further, a limiting step 124 is formed at the connection between the first guide hole 121 and the second guide hole 122, and the first elastic member 140 is a spring arranged on the shaft body 131, and the shaft body 131 passes through the spring setting, and the spring abuts between the connection part 132 and the limiting step 124.

[0057] It can be understood that since the spring is sleeved on the shaft portion 131 and the shaft portion 131 passes through the spring, the length of the shaft portion 131 along the preset direction X is always greater than the length of the spring along the preset direction X. This enables the spring to have higher stability in the second guide hole 122, so as to better achieve the force release effect, thereby making the thermal element 150 have higher smoothness during the extension or shortening process.

[0058] Of course, for the above embodiment, the first elastic member 140 may also be a spring, which can also play the role of force release. No specific limitation is made to the type of the first elastic member 140 herein.

[0059] like Figure 5 and Figure 7 As shown, in one embodiment, a first guide slope 125 is provided at one end of the first guide hole 121 close to the second guide hole 122, or a second guide slope 1312 is provided at one end of the second movable shaft 130 away from the thermistor 150; or a first guide slope 125 is provided at one end of the first guide hole 121 close to the second guide hole 122, and a second guide slope 1312 is provided at one end of the second movable shaft 130 away from the thermistor 150.

[0060] It can be understood that the setting of the above-mentioned guide bevel can play a guiding role for the second movable shaft 130. In this way, when assembling the thermostatic valve core 100, it is easier to pass the second movable shaft 130 through the first guide hole 121 with the help of the guide bevel, thereby reducing the difficulty of assembling the second movable shaft 130.

[0061] like Figures 1 to 3 As shown, it should be noted that the thermostatic valve core 100 further includes a housing 170, a flow rubber member 180, and a second elastic member 190. The housing 170 has a cavity 171, and the first movable shaft 120 and the second movable shaft 130 are respectively located in the cavity 171. One end of the housing 170 along the preset direction X is provided with a connecting hole 172 that communicates with the cavity 171. The rotating member 110 is rotatably disposed through the connecting hole 172. The other end of the housing 170 along the preset direction X is provided with a water outlet 173 that communicates with the cavity 171. The thermal element 150 is respectively disposed through the cavity 171 and the water outlet 173. A cold water inlet 174 and a hot water inlet 175 are provided on the outer circumference of the housing 170. In the preset direction X, the hot water inlet 175 is located between the cold water inlet 174 and the water outlet 173. The flow rubber component 180 is located within the cavity 171 and connected to the thermal element 150. It divides the cavity 171 into a cold water chamber 1711 and a hot water chamber 1712. The cold water inlet 174 communicates with the cold water chamber 1711, while the hot water inlet 175 and the water outlet 173 each communicate with the hot water chamber 1712. The flow rubber component 180 is provided with a water outlet 181 that communicates with the cold water chamber 1711 and the hot water chamber 1712, respectively. The flow rubber component 180 is used to control the opening and closing of the cold water inlet 174 and the hot water inlet 175. A second elastic member 190 is located within the hot water chamber 1712 and is connected to the flow rubber component 180 and the housing 170, respectively.

[0062] For example, the second elastic member 190 may be a spring, a spring sheet, or other element capable of performing elastic reset, and no specific limitation is given herein.

[0063] Based on the above structure, the main working principle of the thermostatic valve core 100 provided in this embodiment is as follows:

[0064] Cold water enters the cold water chamber 1711 from the cold water inlet 174 , and hot water enters the hot water chamber 1712 from the hot water inlet 175 . Cold water enters the hot water chamber 1712 from the water outlet 181 and mixes with the cold water to form mixed water, which is then output from the water outlet 173 .

[0065] When the user rotates the rotating member 110 to drive the first movable shaft 120, the second movable shaft 130 and the thermal element 150 to move synchronously along the preset direction X to a certain position, the cold water inflow and the hot water inflow will be fixed, that is, the temperature of the mixed water is set.

[0066] When the temperature of the mixed water is greater than the set value, the thermal sensitive element 150 is heated to extend and drive the flow rubber piece 180 to move away from the rotating piece 110, so that the cold water inflow is increased and the hot water inflow is reduced, and then the temperature of the mixed water is reduced to the set value again; when the temperature of the mixed water is less than the set value, the thermal sensitive element 150 is cooled to shorten and drive the flow rubber piece 180 to move close to the rotating piece 110, so that the cold water inflow is reduced and the hot water inflow is increased, and then the temperature of the mixed water is increased to the set value again.

[0067] In the second aspect, the embodiments of the present application provide a thermostatic valve, which comprises the thermostatic valve core 100 in any of the embodiments of the first aspect.

[0068] It should be noted that the faucet can be a bathroom faucet, a sink faucet, a water purifier faucet, etc., and the type of the faucet is not specifically limited herein.

[0069] It can be understood that, since the thermostatic valve provided by the embodiments has the thermostatic valve core 100 in any of the embodiments of the first aspect, the thermostatic valve core 100 has all the beneficial effects, which will not be described herein.

[0070] In the third aspect, the embodiments of the present application provide a faucet, which comprises the thermostatic valve in any of the embodiments of the second aspect.

[0071] It can be understood that, since the faucet provided by the embodiments has the thermostatic valve in any of the embodiments of the second aspect, the thermostatic valve has all the beneficial effects, which will not be described herein.

[0072] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A thermostatic valve core, characterized in that: include: rotating parts; a first movable shaft connected to the rotating member, capable of driving the first movable shaft to move along a preset direction when the rotating member rotates, the preset direction being parallel to the axis of the rotating member, and having a first guide hole and a second guide hole in communication with each other provided on the first movable shaft; A second movable shaft is slidably provided in the first guide hole and the second guide hole respectively; a first elastic member, located in the second guide hole and connected to the first movable shaft and the second movable shaft respectively; The thermal element is connected to one end of the second movable shaft away from the first guide hole, and can extend along the preset direction when the temperature rises or shorten along the preset direction when the temperature drops.

2. The thermostatic valve core according to claim 1, characterized in that The second movable shaft includes a shaft body portion and a connecting portion connected to each other, the shaft body portion is slidably inserted into the first guide hole, the connecting portion is slidably inserted into the second guide hole and is connected to the thermistor, and the first elastic member is connected to the connecting portion and the first movable shaft respectively.

3. The thermostatic valve core according to claim 2, characterized in that: The length of the first guide hole along the preset direction is smaller than the length of the shaft body along the preset direction.

4. The thermostatic valve core according to claim 2, characterized in that: The orthographic projection shapes of the first guide hole, the second guide hole, the shaft body and the connecting part on the projection plane are all circular, the projection plane is perpendicular to the preset direction, the diameter of the first guide hole is smaller than the diameter of the second guide hole, the diameter of the shaft body is smaller than the diameter of the connecting part, the shaft body is loosely fitted with the first guide hole, and the connecting part is loosely fitted with the second guide hole.

5. The thermostatic valve core according to claim 2, characterized in that: The thermostatic valve core further includes a limiter connected to an end of the shaft portion away from the connecting portion; When the second movable shaft moves to a preset position in a direction away from the rotating member, the limiting member abuts against the first movable shaft, and the direction away from the rotating member is parallel to the preset direction.

6. The thermostatic valve core according to claim 5, characterized in that An annular groove is provided on the outer circumference of one end of the shaft body away from the connecting portion, the limiting member is a snap ring engaged with the annular groove, and an avoidance groove communicating with the first guide hole is provided on one end of the first movable shaft away from the thermal element; When the second movable shaft moves to a preset position in a direction away from the rotating member, the snap ring is received in the avoidance groove.

7. The thermostatic valve core according to claim 2, characterized in that: A limiting step is formed at the connection between the first guide hole and the second guide hole. The first elastic member is a spring sleeved on the shaft body. The shaft body passes through the spring, and the spring abuts between the connection portion and the limiting step.

8. The thermostatic valve core according to any one of claims 1 to 7, characterized in that: A first guiding slope is provided at one end of the first guiding hole close to the second guiding hole; and / or a second guiding slope is provided at one end of the second movable shaft away from the thermal element.

9. A thermostatic valve, characterized in that: The invention comprises the thermostatic valve core according to any one of claims 1 to 8.

10. A faucet, characterized in that: Including the thermostatic valve according to claim 9.

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