Temperature adjusting knob for thermostatic valve, thermostatic valve and water heater

Abstract

The utility model discloses a thermoregulation knob for a thermostatic valve, the thermostatic valve and a water heater, the thermoregulation knob for the thermostatic valve comprises: a temperature limiting ring, one end of which is used for being connected with a valve body of the thermostatic valve and the other end of which forms a temperature limiting part; the outer barrel is arranged on the outer side of the temperature limiting part in a sleeving manner; the temperature adjusting ring is fixedly arranged on the inner wall face, facing the side of the temperature limiting ring, of the outer barrel, a fixing sleeve is arranged on the temperature adjusting ring, and the fixing sleeve is configured to be used for being connected with a valve element of the thermostatic valve; the inner wall face of the temperature adjusting ring extends towards the fixing sleeve to form an extending part, and the extending part is connected with the fixing sleeve. The outer cylinder body and the temperature adjusting ring are of a split structure, the situation that reinforcing ribs are arranged on the outer cylinder body is avoided, the temperature adjusting ring can rotate from one side of the temperature limiting part to the other side of the temperature limiting part, a temperature adjusting interval which is large enough is guaranteed, and cost can be reduced easily.

Description

Technical Field

[0001] This utility model belongs to the field of water heater technology, and in particular relates to a temperature control knob for a thermostatic valve, a thermostatic valve, and a water heater. Background Technology

[0002] Currently, water heaters are common household appliances, categorized into electric water heaters, gas water heaters, heat pump water heaters, and solar water heaters. Electric water heaters are widely used due to their convenience. Among these, electric water heaters can be further classified by heating power into storage-type and instantaneous electric water heaters. Storage-type electric water heaters, equipped with a water tank, offer advantages such as large water output and stable water temperature, making them more popular among families.

[0003] In existing electric water heaters, thermostatic valves are typically used to control water temperature and achieve constant-temperature hot water output. However, the maximum rotation angle of the thermostatic valve's temperature control knob is limited due to the presence of internal reinforcing ribs in the injection-molded part, thus restricting the temperature adjustment range of the valve. If the temperature control knob is made of sheet metal, the internal reinforcing ribs are unnecessary, and while the rotation angle can be guaranteed, the production cost is higher. Therefore, how to design a technology that can ensure a sufficiently large temperature adjustment range for the temperature control knob while reducing costs is the technical problem that this utility model aims to solve. Utility Model Content

[0004] This utility model provides a temperature control knob for a thermostatic valve, a thermostatic valve, and a water heater, which can both ensure a sufficiently large temperature control range for the temperature control knob and reduce costs.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] In the first aspect, this utility model provides a temperature control knob for a thermostatic valve, comprising:

[0007] A temperature limiting ring, one end of which is used to connect to the valve body of a thermostatic valve, and the other end of which forms a temperature limiting section;

[0008] The outer cylinder is sleeved on the outside of the temperature limiting part;

[0009] A temperature regulating ring is fixedly disposed on the inner wall surface of the outer cylinder facing the temperature limiting ring. A fixing sleeve is provided on the temperature regulating ring, and the fixing sleeve is configured to connect with the valve core of the thermostatic valve. An extension portion is formed on the inner wall of the temperature regulating ring facing the fixing sleeve, and the extension portion is connected to the fixing sleeve.

[0010] In some embodiments of this application, an annular groove is formed on the inner wall surface of the outer cylinder end at a position corresponding to the temperature regulating ring, and the temperature regulating ring is disposed in the annular groove; an avoidance groove is formed on the inner wall surface of the outer cylinder at a position corresponding to the extension, and the avoidance groove is connected to the annular groove.

[0011] By setting an annular groove and a clearance groove on the inner wall of the outer cylinder, and connecting the clearance groove with the annular groove, it is easy to install the temperature regulating ring on the outer cylinder.

[0012] In some embodiments of this application, a protrusion is provided on the inner wall of the annular groove, and a groove is provided on the outer wall of the temperature regulating ring. The protrusion is inserted into the groove so that the temperature regulating ring is engaged with the outer cylinder.

[0013] By setting protrusions on the inner wall of the annular groove and grooves on the outer wall of the temperature regulating ring, the connection stability between the temperature regulating ring and the outer cylinder is improved, and relative rotation between the temperature regulating ring and the outer cylinder is avoided.

[0014] In some embodiments of this application, the temperature control knob for the thermostatic valve further includes:

[0015] A temperature indicator is provided on the end face of the outer cylinder away from the temperature limiting ring. A temperature limiting mating part is formed on the temperature indicator, and the temperature limiting mating part is fixedly connected to the temperature limiting part.

[0016] By setting a temperature indicator, users can easily observe the distribution of high and low temperatures on the temperature control knob.

[0017] In some embodiments of this application, the temperature indicator has a retaining ring formed on the side facing the retaining sleeve, and the retaining ring is engaged with the retaining sleeve.

[0018] By forming a retaining ring on the side of the temperature indicator facing the retaining sleeve, and the retaining ring engaging with the retaining sleeve, the retaining sleeve provides support for the temperature indicator, thereby improving the installation strength of the temperature indicator.

[0019] In some embodiments of this application, a stop portion is formed in the middle of the fixing sleeve, and a mounting hole is formed on the stop portion. The mounting hole is configured to allow a fastener to pass through and to fix the fixing sleeve to the valve core.

[0020] By forming a stop in the middle of the fixed sleeve, and having a mounting hole in the stop, fasteners pass through the mounting hole to fix the fixed sleeve to the valve core, thereby fixing the temperature regulating ring and the valve core together. When the temperature regulating ring is rotated, the valve core rotates synchronously.

[0021] In some embodiments of this application, a limiting groove is formed on the inner wall surface of the fixing sleeve facing the valve core, the limiting groove is adapted to the outer wall surface of the valve core, and the limiting groove is configured to prevent the fixing sleeve from rotating relative to the valve core.

[0022] By forming a limiting groove on the inner wall surface of the fixed sleeve facing the valve core, and the limiting groove matching the outer wall surface of the valve core, it is beneficial to improve the connection strength between the fixed sleeve and the valve core, and avoid relative rotation between the fixed sleeve and the valve core. When the outer cylinder is rotated, the fixed sleeve and the valve core rotate synchronously to achieve temperature regulation.

[0023] In some embodiments of this application, a positioning hole is formed on the wall of the outer cylinder, and a receiving cavity is formed in the extension, the receiving cavity being connected to the positioning hole; a guide groove is formed on the side wall of the extension, the guide groove being connected to the receiving cavity;

[0024] The temperature control knob for the thermostatic valve also includes:

[0025] A high-temperature button passes through the positioning hole and extends into the receiving cavity; a limiting part is formed on the high-temperature button, and the limiting part passes through the guide groove;

[0026] An elastic element is disposed in the receiving cavity and elastically abuts against the high-temperature button and the extension;

[0027] The temperature limiting ring has a retaining ring formed on its end face. The retaining ring is configured to prevent the limiting part from turning towards the high temperature zone of the thermostatic valve. The limiting part is configured to prevent the high temperature button from disengaging from the extension. When the high temperature button is pressed, the limiting part slides along the guide groove to avoid the retaining ring.

[0028] By setting a high-temperature button and an elastic element, the limiting part passes through the guide groove on the extension part. A retaining ring is formed on the end face of the temperature limiting ring at a position corresponding to the high-temperature zone of the thermostatic valve. The retaining ring is used to prevent the limiting part from turning to the high-temperature zone of the thermostatic valve. In this way, when high-temperature water is needed, the high-temperature button needs to be pressed to make the limiting part avoid the retaining ring in order to achieve high-temperature water, thus avoiding user rotation operation errors and being scalded by hot water.

[0029] In a second aspect, the present invention provides a thermostatic valve, including a valve body and a valve core, and further including a temperature adjustment knob for the thermostatic valve as described in any one of the embodiments of the first aspect above, one end of the temperature limiting ring being connected to the valve body, and the fixing sleeve being connected to the valve core.

[0030] In a third aspect, the present invention provides a water heater, including a thermostatic valve as described in the second aspect embodiment above.

[0031] Compared with the prior art, the advantages and positive effects of this utility model are as follows: By setting a temperature limiting ring, an outer cylinder, and a temperature adjusting ring, one end of the temperature limiting ring is used to connect with the valve body of the thermostatic valve, and the other end forms a temperature limiting part; the outer cylinder is sleeved on the outside of the temperature limiting part, and the temperature adjusting ring is set on the inner wall surface of the outer cylinder facing the temperature limiting ring. The temperature adjusting ring is provided with a fixing sleeve, which is used to connect with the valve core of the thermostatic valve. The temperature adjusting ring is connected to the fixing sleeve through an extension. When the outer cylinder is rotated, it will drive the temperature adjusting ring to rotate. The temperature adjusting ring drives the valve core to rotate through the fixing sleeve, thereby adjusting the temperature of the thermostatic valve. The outer cylinder and the temperature adjusting ring are separate structures, which avoids setting reinforcing ribs on the outer cylinder. The temperature adjusting ring can rotate from one side of the temperature limiting part to the other side of the temperature limiting part, ensuring a sufficiently large temperature adjustment range, and at the same time, it helps to reduce the manufacturing cost of the temperature adjusting knob. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 One of the structural schematic diagrams of an embodiment of the thermostatic valve provided by this utility model;

[0034] Figure 2 A second schematic diagram of the structure of an embodiment of the thermostatic valve provided by this utility model;

[0035] Figure 3 A third schematic diagram of the structure of an embodiment of the thermostatic valve provided by this utility model;

[0036] Figure 4 for Figure 3 Cross-sectional view along direction AA;

[0037] Figure 5 One of the structural schematic diagrams of the temperature control knob for a thermostatic valve provided by this utility model;

[0038] Figure 6 A schematic diagram of the internal structure of the temperature control knob for a thermostatic valve provided by this utility model;

[0039] Figure 7 A schematic diagram of the outer cylinder of the temperature control knob for a thermostatic valve provided by this utility model;

[0040] Figure 8 A schematic diagram of the temperature control ring of the temperature control knob for a thermostatic valve provided by this utility model;

[0041] Figure 9 A schematic diagram of the temperature limiting ring for the temperature control knob of the thermostatic valve provided by this utility model;

[0042] Figure 10 The second schematic diagram of the temperature control knob for a thermostatic valve provided by this utility model;

[0043] Figure 11 for Figure 10 Cross-sectional view along the BB direction;

[0044] Figure 12 One of the exploded views of the temperature control knob for a thermostatic valve provided by this utility model;

[0045] Figure 13 The second exploded view of the temperature control knob for the thermostatic valve provided by this utility model.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Temperature limiting ring; 11. Temperature limiting part; 12. Retaining ring;

[0048] 2. Outer cylinder; 21. Annular groove; 211. Protrusion; 22. Clearance groove; 23. Positioning hole;

[0049] 3. Temperature regulating ring; 31. Fixing sleeve; 311. Stop part; 3111. Mounting hole; 312. Limiting groove; 32. Extension part; 321. Receiving cavity; 322. Guide groove; 33. Groove part;

[0050] 4. Temperature indicator; 41. Temperature limiting mating part; 42. Retaining ring;

[0051] 5. High temperature button; 51. Limiting part;

[0052] 6. Elastic components;

[0053] 7. Concealment shield;

[0054] 8. Thermostatic valve; 81. Valve body; 82. Valve core. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0056] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0060] An electric water heater is a type of water heater that uses electricity as its primary energy source. The high-temperature heat generated after the power is turned on directly heats the water stored in the water heater to produce hot water.

[0061] Electric water heaters typically consist of a water tank, an electric heating element, and an electronic control board. The water tank has a storage cavity to store water to be heated. The electric heating element is inserted into the storage cavity of the water tank. The electronic control board is used to control the electric heating element to operate by turning the power on and off, so that the water in the tank is heated to the set temperature.

[0062] For the water tank of an electric water heater, the tank generally consists of an outer shell and an inner tank, with an insulation layer between them. The outer shell is usually made of plastic to meet the requirements of aesthetic and diverse designs; the inner tank can be made of metal or plastic, depending on the needs.

[0063] In addition, the insulation layer formed between the outer shell and the inner liner is commonly made of materials such as asbestos, sponge, foam plastic, and polyurethane foam. In conventional technology, foaming is usually used to form the insulation layer in order to achieve good insulation effect.

[0064] The water tank is also equipped with an inlet pipe and an outlet pipe. The inlet pipe is used to deliver cold water into the water storage cavity formed inside the water tank, while the hot water in the water storage cavity is output from the outlet pipe.

[0065] For electric heating components, electric heating methods such as electric heating wires, magnetic energy, or silicon tube heating can be used to heat the water stored in the water storage chamber.

[0066] The control board is used to receive detection signals from relevant sensors (such as water temperature sensors and flow sensors) and control the power supply to and from the electric heating components.

[0067] When the electric water heater is working, the electric control board controls the electric heating element to be powered on and heated. When the water temperature in the tank reaches the set value, the electric control board controls the electric heating element to be powered off.

[0068] In the first aspect, combining Figures 1 to 13 As shown, this embodiment of the present disclosure provides a temperature control knob for a thermostatic valve, which is mainly used to be installed on the thermostatic valve 8.

[0069] Among them, combined Figure 3 and Figure 5 As shown, the temperature control knob for the thermostatic valve includes a temperature limiting ring 1, an outer cylinder 2, and a temperature control ring 3.

[0070] The temperature limiting ring 1 has a cylindrical structure. One end of the temperature limiting ring 1 is used to fix it to the valve body 81 of the thermostatic valve 8. The other end of the temperature limiting ring 1 forms a temperature limiting part 11, which has a columnar structure.

[0071] The outer cylinder 2 is fitted on the outside of the temperature limiting part 11. The outer cylinder 2 is the part that the user directly contacts, and is mainly used by the user to rotate the entire temperature control knob.

[0072] To enhance the user's tactile experience, anti-slip protrusions are formed on the outer wall surface of the outer cylinder 2.

[0073] Combination Figure 4 As shown, the temperature regulating ring 3 is fixedly disposed on the inner wall surface of the outer cylinder 2 facing the temperature limiting ring 1. The temperature regulating ring 3 is provided with a fixing sleeve 31, which is configured to connect with the valve core 82 of the thermostatic valve 8. The inner wall of the temperature regulating ring 3 extends towards the fixing sleeve 31 to form an extension portion 32, which is connected to the fixing sleeve 31. The temperature regulating ring 3, the extension portion 32 and the fixing sleeve 31 are integrally formed structures.

[0074] For example, the retaining sleeve 31 is located at the center of the temperature regulating ring 3.

[0075] Specifically, by setting a temperature limiting ring 1, an outer cylinder 2, and a temperature regulating ring 3, one end of the temperature limiting ring 1 is used to connect to the valve body 81 of the thermostatic valve 8, and the other end forms a temperature limiting part 11; the outer cylinder 2 is sleeved on the outside of the temperature limiting part 11, and the temperature regulating ring 3 is set on the inner wall surface of the outer cylinder 2 facing the temperature limiting ring 1. The temperature regulating ring 3 is provided with a fixing sleeve 31, which is used to connect to the valve core 82 of the thermostatic valve 8. The temperature regulating ring 3 is connected to the fixing sleeve 31 through an extension part 32. When the outer cylinder 2 is rotated, the temperature regulating ring 3 will be driven to rotate. The temperature regulating ring 3 drives the valve core 82 to rotate through the fixing sleeve 31, thereby adjusting the temperature of the thermostatic valve 8. The outer cylinder 2 and the temperature regulating ring 3 are separate structures, which avoids setting reinforcing ribs on the outer cylinder 2. The temperature regulating ring 3 can rotate from one side of the temperature limiting part 11 to the other side of the temperature limiting part 11, ensuring a sufficiently large temperature adjustment range, and at the same time helping to reduce the manufacturing cost of the temperature regulating knob.

[0076] In some embodiments of this application, combined with Figure 7 As shown, an annular groove 21 is formed on the inner wall surface of the outer cylinder 2 at a position corresponding to the temperature regulating ring 3, and the temperature regulating ring 3 is disposed in the annular groove 21; an avoidance groove 22 is formed on the inner wall surface of the outer cylinder 2 at a position corresponding to the extension 32, the avoidance groove 22 is connected to the annular groove 21, and the avoidance groove 22 is adapted to the extension 32.

[0077] Specifically, an annular groove 21 and a clearance groove 22 are provided on the inner wall surface of the end of the outer cylinder 2. The clearance groove 22 is connected to the annular groove 21. The annular groove 21 corresponds to the temperature regulating ring 3, and the clearance groove 22 corresponds to the extension 32. In this way, during installation, the extension 32 is aligned with the clearance groove 22, and the temperature regulating ring 3 is aligned with the annular groove 21 for installation. The annular groove 21 and the clearance groove 22 can accommodate the temperature regulating ring 3, which makes it easy to install the temperature regulating ring 3 as a whole on the outer cylinder 2 and prevent the temperature regulating ring 3 from passing from one end of the outer cylinder 2 to the other end of the outer cylinder 2.

[0078] Meanwhile, the clearance groove 22 can restrict the rotation of the temperature regulating ring 3 relative to the outer cylinder 2.

[0079] In some embodiments of this application, combined with Figure 12 and Figure 13 As shown, a protrusion 211 is provided on the inner wall of the annular groove 21, and a groove 33 is provided on the outer wall of the temperature regulating ring 3. The groove 33 is adapted to the protrusion 211, and the protrusion 211 is inserted into the groove 33 so that the temperature regulating ring 3 is engaged with the outer cylinder 2.

[0080] Specifically, by providing a protrusion 211 on the inner wall of the annular groove 21 and a groove 33 on the outer wall of the temperature regulating ring 3, after the temperature regulating ring 3 is installed on the outer cylinder 2, the protrusion 211 is inserted into the groove 33. The protrusion 211 and the groove 33 can prevent the temperature regulating ring 3 from rotating relative to the outer cylinder 2, which is beneficial to improving the connection stability between the temperature regulating ring 3 and the outer cylinder 2.

[0081] In some embodiments of this application, the temperature control knob for the thermostatic valve also includes a temperature indicator 4, on which a temperature limiting mating part 41 is formed, and the temperature limiting mating part 41 is fixedly connected to the temperature limiting part.

[0082] Combination Figure 5 and Figure 6 As shown, the temperature indicator 4 is disposed on the end face of the outer cylinder 2 away from the temperature limiting ring 1, and a temperature limiting mating part 41 is formed on the temperature indicator 4, which is fixedly connected to the temperature limiting part 11.

[0083] Specifically, by connecting the temperature indicator 4 to the temperature limiting part 11 via the temperature limiting fitting part 41, the temperature indicator 4 allows users to intuitively observe the positions of high and low temperatures. By forming a fixing ring 42 on the side of the temperature indicator 4 facing the fixing sleeve 31, and the fixing ring 42 engaging with the fixing sleeve 31, the fixing sleeve 31 provides support for the temperature indicator 4, reducing deformation caused by external forces and improving the installation strength of the temperature indicator 4.

[0084] In some embodiments of this application, a retaining ring 42 is formed on the side of the temperature indicator 4 facing the retaining sleeve 31, and the retaining ring 42 is engaged with the retaining sleeve 31.

[0085] Specifically, in order to make it easier for users to know the temperature value of the water outlet during use, the temperature indicator 4 is set with temperature scale values. Correspondingly, the outer cylinder 2 is set with indicator protrusions or indicator grooves (unmarked). Users can know the water outlet temperature by rotating the outer cylinder 2 according to the temperature scale values ​​on the temperature indicator 4.

[0086] Specifically, the temperature limiting fitting part 41 and the fixing ring 42 are located on the same side of the temperature indicator 4, and the fixing ring 42 is located at the center of the temperature indicator 4. Both the temperature limiting fitting part 41 and the temperature limiting part 11 are columnar structures, and the positions of the temperature limiting fitting part 41 and the temperature limiting part 11 correspond to each other. The end of the temperature limiting part 11 has a receiving hole, and the temperature limiting fitting part 41 is inserted into the receiving hole. In order to prevent the temperature indicator 4 from rotating relative to the temperature limiting ring 1, the receiving hole is adapted to the temperature limiting fitting part 41. In this way, the temperature indicator 4 is fixed by the relative position of the temperature limiting part 11 and the temperature limiting ring 1.

[0087] In some embodiments of this application, combined with Figure 11 As shown, a stop portion 311 is formed in the middle of the fixed sleeve 31, and a mounting hole 3111 is formed on the stop portion 311. The mounting hole 3111 is configured to allow a fastener to pass through and to fix the fixed sleeve 31 to the valve core 82.

[0088] Specifically, a stop portion 311 is formed in the middle of the fixed sleeve 31. The stop portion 311 has a plate-like structure and a mounting hole 3111 is formed on the stop portion 311. Fasteners pass through the mounting hole 3111 to fix the fixed sleeve 31 to the valve core 82, thereby fixing the temperature regulating ring 3 to the valve core 82 together. When the temperature regulating ring 3 is rotated, the valve core 82 rotates synchronously.

[0089] In some embodiments of this application, a limiting groove 312 is formed on the inner wall surface of the fixing sleeve 31 facing the valve core 82. The limiting groove 312 is adapted to the outer wall surface of the valve core 82 and is configured to prevent the fixing sleeve 31 from rotating relative to the valve core 82.

[0090] Specifically, by forming a limiting groove 312 on the inner wall surface of the fixed sleeve 31 facing the valve core 82, the limiting groove 312 is adapted to the outer wall surface of the valve core 82, which helps to improve the connection strength between the fixed sleeve 31 and the valve core 82 and avoids relative rotation between the fixed sleeve 31 and the valve core 82. When the outer cylinder 2 is rotated, the outer cylinder 2 drives the fixed sleeve 31 to rotate synchronously, and the fixed sleeve 31 drives the valve core 82 to rotate synchronously, thereby realizing the temperature regulation of the thermostatic valve 8.

[0091] In some embodiments of this application, a limiting groove 312 is formed on the inner wall surface of the fixing sleeve 31 facing the valve core 82. The limiting groove 312 is adapted to the outer wall surface of the valve core 82 and is configured to prevent the fixing sleeve 31 from rotating relative to the valve core 82.

[0092] By forming a limiting groove 312 on the inner wall surface of the fixed sleeve 31 facing the valve core 82, the limiting groove 312 is adapted to the outer wall surface of the valve core 82, which helps to improve the connection strength between the fixed sleeve 31 and the valve core 82 and avoids relative rotation between the fixed sleeve 31 and the valve core 82. When the outer cylinder 2 is rotated, the fixed sleeve 31 and the valve core 82 rotate synchronously to achieve temperature regulation.

[0093] In some embodiments of this application, combined with Figure 8 As shown, a positioning hole 23 is formed on the wall of the outer cylinder 2, and a receiving cavity 321 is formed in the extension 32, which is connected to the positioning hole 23; a guide groove 322 is formed on the side wall of the extension 32, the length direction of the guide groove 322 is consistent with the length direction of the high temperature button 5, and the guide groove 322 is connected to the receiving cavity 321; the temperature adjustment knob for the thermostatic valve also includes the high temperature button 5 and the elastic element 6.

[0094] The high-temperature button 5 passes through the positioning hole 23 and extends into the receiving cavity 321; a limiting part 51 is formed on the high-temperature button 5, and the limiting part 51 passes through the guide groove 322.

[0095] The elastic element 6 is disposed in the receiving cavity 321 and elastically abuts against the high temperature button 5 and the extension 32.

[0096] Among them, combined Figure 9 , Figure 10 and Figure 11 As shown, a retaining ring 12 is formed on the end face of the temperature limiting ring 1 at a position corresponding to the high temperature zone of the thermostatic valve. The retaining ring 12 is configured to prevent the limiting part 51 from turning to the high temperature zone of the thermostatic valve. The limiting part 51 is configured to prevent the high temperature button 5 from disengaging from the extension part 32. When the high temperature button 5 is pressed, the limiting part 51 slides along the guide groove 322 to avoid the retaining ring 12.

[0097] Specifically, when a user needs hot water, the high temperature button 5 needs to be pressed so that the limiting part 51 slides inward along the guide groove 322, so that the limiting part 51 avoids the retaining ring 12. After rotating the outer cylinder 2, the limiting part 51 enters the inner area of ​​the retaining ring 12, so that hot water can be dispensed. This prevents the user from accidentally setting the water temperature to high temperature due to operation error and being scalded by hot water.

[0098] In some embodiments of this application, the limiting part 51 and the high temperature button 5 can be an integral structure or a separate structure.

[0099] For example, the limiting part 51 and the high temperature button 5 are independent components, and a guide hole is formed on the high temperature button 5 at a position corresponding to the guide groove 322.

[0100] The limiting part 51 has a rod-shaped structure. The limiting part 51 passes through the guide hole and the guide groove 322 and extends out of the extension part 32. There is a gap between the limiting part 51 and the end face of the temperature limiting ring 1.

[0101] Specifically, the positioning hole 23 is not limited to a round hole or a square hole.

[0102] In a second aspect, the disclosed embodiment provides a thermostatic valve 8, which is used to be installed on the outlet pipe of the water tank of an electric water heater to achieve the purpose of constant temperature water output.

[0103] The thermostatic valve 8 includes a valve body 81, a valve core 82, and a temperature control knob for the thermostatic valve as described in any of the embodiments of the first aspect above. One end of the temperature limiting ring 1 is connected to the valve body 81, and the fixing sleeve 31 is connected to the valve core 82.

[0104] Since the temperature control knob for the thermostatic valve includes any of the above embodiments, it has all of its beneficial effects, which will not be repeated here.

[0105] In a third aspect, embodiments of this disclosure provide a water heater, including the thermostatic valve 8 as described in the second aspect embodiment above. To improve the aesthetic appearance of the water heater, [the following is combined with...] Figure 1 and Figure 2 As shown, the thermostatic valve 8 has a concealed cover 7 on its outer side. Since it includes the thermostatic valve 8 in the second aspect embodiment described above, it possesses all the beneficial effects of the thermostatic valve 8 in the above embodiments, which will not be repeated here.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A temperature control knob for a thermostatic valve, characterized in that, include: A temperature limiting ring, one end of which is used to connect to the valve body of a thermostatic valve, and the other end of which forms a temperature limiting section; The outer cylinder is sleeved on the outside of the temperature limiting part; A temperature regulating ring is fixedly disposed on the inner wall surface of the outer cylinder facing the temperature limiting ring. A fixing sleeve is provided on the temperature regulating ring, and the fixing sleeve is configured to connect with the valve core of the thermostatic valve. An extension portion is formed on the inner wall of the temperature regulating ring facing the fixing sleeve, and the extension portion is connected to the fixing sleeve.

2. The temperature control knob for a thermostatic valve according to claim 1, characterized in that, An annular groove is formed on the inner wall surface of the outer cylinder end at a position corresponding to the temperature regulating ring, and the temperature regulating ring is disposed in the annular groove; an avoidance groove is formed on the inner wall surface of the outer cylinder at a position corresponding to the extension, and the avoidance groove is connected to the annular groove.

3. The temperature control knob for a thermostatic valve according to claim 2, characterized in that, The inner wall of the annular groove is provided with a protrusion, and the outer wall of the temperature regulating ring is provided with a groove. The protrusion is inserted into the groove so that the temperature regulating ring is engaged with the outer cylinder.

4. The temperature control knob for a thermostatic valve according to claim 1, characterized in that, The temperature control knob for the thermostatic valve also includes: A temperature indicator is provided on the end face of the outer cylinder away from the temperature limiting ring. A temperature limiting mating part is formed on the temperature indicator, and the temperature limiting mating part is fixedly connected to the temperature limiting part.

5. The temperature control knob for a thermostatic valve according to claim 4, characterized in that, The temperature indicator has a retaining ring on the side facing the retaining sleeve, and the retaining ring is engaged with the retaining sleeve.

6. The temperature control knob for a thermostatic valve according to claim 1, characterized in that, A stop portion is formed in the middle of the fixed sleeve, and a mounting hole is formed on the stop portion. The mounting hole is configured to allow a fastener to pass through and to fix the fixed sleeve to the valve core.

7. The temperature control knob for a thermostatic valve according to claim 1, characterized in that, A limiting groove is formed on the inner wall surface of the fixed sleeve facing the valve core. The limiting groove is adapted to the outer wall surface of the valve core and is configured to prevent the fixed sleeve from rotating relative to the valve core.

8. The temperature control knob for a thermostatic valve according to claim 1, characterized in that, A positioning hole is formed on the wall of the outer cylinder, and a receiving cavity is formed in the extension, the receiving cavity being connected to the positioning hole; a guide groove is formed on the side wall of the extension, the guide groove being connected to the receiving cavity; The temperature control knob for the thermostatic valve also includes: A high-temperature button passes through the positioning hole and extends into the receiving cavity; a limiting part is formed on the high-temperature button, and the limiting part passes through the guide groove; An elastic element is disposed in the receiving cavity and elastically abuts against the high-temperature button and the extension; The temperature limiting ring has a retaining ring formed on its end face. The retaining ring is configured to prevent the limiting part from turning towards the high temperature zone of the thermostatic valve. The limiting part is configured to prevent the high temperature button from disengaging from the extension. When the high temperature button is pressed, the limiting part slides along the guide groove to avoid the retaining ring.

9. A thermostatic valve, comprising a valve body and a valve core, characterized in that, It also includes a temperature control knob for a thermostatic valve as described in any one of claims 1 to 8, wherein one end of the temperature limiting ring is connected to the valve body, and the fixing sleeve is connected to the valve core.

10. A water heater, characterized in that, Including the thermostatic valve as described in claim 9 above.

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