Control handle structure of temperature regulating valve

Abstract

The utility model discloses a temperature adjusting valve control handle structure which comprises a faucet body, a connecting hole is formed in the faucet body, the temperature adjusting valve control handle structure further comprises a valve element capable of being matched with the connecting hole, a reducing sleeve capable of being axially fixed to the faucet body is arranged in the connecting hole in a matched mode, and the reducing sleeve is provided with a handle assembly in a matched mode. The handle assembly can rotate relative to the connecting sleeve, a gear is arranged on the periphery of a valve rod of the valve element, a tooth groove is formed in the handle assembly, and teeth of the gear can be inserted into the tooth groove so that rotation of the handle assembly can drive the valve rod to rotate. The width of the tooth grooves is larger than that of the teeth so that gaps can be formed between the teeth of the gear and the tooth grooves, the handle can be conveniently installed through the structure, and the appearance effect is not affected. Meanwhile, the technological process is simplified, material waste is reduced, and the overall production cost is reduced.

Description

Technical Field

[0001] This utility model relates to a thermostatic valve control handle structure, belonging to the technical field of faucet handle connection structure, and is preferably a thermostatic valve control structure. Background Technology

[0002] In existing straight-line faucets or faucets with a lip-shaped outer shell and handle coaxially, the main component is a thermostatic valve (or constant temperature valve). The handle and the valve core inside the water channel are fixed together by a coaxial rigid connection. This connection method has several problems in practical applications: mainly because the dimensional relationships between the water channel components, valve core, and outer shell are relatively long, and the parts are prone to deformation during production and assembly, the gap between the handle and the outer shell is uneven, which can easily lead to friction and misalignment. These problems not only affect assembly efficiency but also greatly reduce the aesthetic appearance of the faucet, making operation less smooth, and may even result in the handle not fitting the valve core. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a control handle structure for a temperature regulating valve.

[0004] This utility model is achieved through the following technical solution:

[0005] A thermostatic valve control handle structure includes a faucet body with a connection hole, and a valve core adapted to the connection hole. An adapter sleeve, axially fixed to the body, is fitted within the connection hole. A handle assembly is fitted onto the adapter sleeve and is rotatable relative to the connection sleeve. A gear is provided on the outer periphery of the valve stem of the valve core. The handle assembly has a toothed groove, and the teeth of the gear can be inserted into the toothed groove so that rotation of the handle assembly drives rotation of the valve stem. The width of the toothed groove is greater than the width of the tooth, creating a gap between the gear teeth and the toothed groove.

[0006] In this embodiment of the utility model, a gear sleeve is also included, on which the gear is disposed, and the gear sleeve can be connected to the valve stem via a locking screw.

[0007] In this embodiment of the invention, the width of the tooth groove is greater than twice the width of the tooth.

[0008] In this embodiment of the present invention, a first locking block is provided on the handle assembly, and a second locking block is provided on the inner circumference of the connecting sleeve. The first locking block can cooperate with the second locking block to restrict the axial movement of the handle and the connecting sleeve.

[0009] In this embodiment of the utility model, the handle assembly includes a knob and a fixing sleeve. The inner circumference of the knob is provided with a first connecting tooth, and the outer circumference of the fixing sleeve is provided with a second connecting tooth. The first connecting tooth can cooperate with the second connecting tooth to enable the knob to drive the fixing sleeve to rotate synchronously. The tooth groove is provided on the inner circumference of the fixing sleeve.

[0010] In this embodiment of the present invention, the first snap-fit ​​block is disposed on the outer periphery of the fixed sleeve, and the first snap-fit ​​block is also provided with a first guide surface, and the second snap-fit ​​block is provided with a second guide surface.

[0011] In this embodiment of the invention, the first snap-fit ​​block and the second connecting tooth are located at different axial positions on the outer periphery of the fixed sleeve.

[0012] In this embodiment of the utility model, the handle assembly further includes a bushing, which can be disposed on a fixed sleeve. A button is disposed inside the bushing, and the knob has an opening that can be adapted to the button. A stop bar is also connected to the button, and the stop bar can be inserted into the adapter sleeve. The adapter sleeve has an abutment part that can cooperate with the stop bar to limit the rotation angle of the knob.

[0013] In this embodiment of the utility model, the adapter sleeve is provided with a first arc-shaped surface and a second arc-shaped surface. The rotation of the knob can enable the stop bar to cooperate and connect with the first arc-shaped surface and the second arc-shaped surface. The radius of the first arc-shaped surface is smaller than the radius of the second arc-shaped surface. The abutting part is located between the first arc-shaped surface and the second arc-shaped surface.

[0014] In this embodiment of the utility model, a spring is provided between the button and the bushing; when the button is not pressed, the stop rod can be connected with the second arc-shaped surface; when the button is pressed, the stop rod can be connected with the first arc-shaped surface.

[0015] This utility model discloses a control handle structure for a temperature regulating valve, which has the following beneficial effects: The use of an adapter reduces the mutual influence between parts, improving assembly accuracy. Furthermore, the large-clearance fit design lowers the requirements for part machining accuracy, simplifies the production process, makes the assembly process smoother, reduces rework rates due to friction and misalignment, and significantly improves production efficiency. In addition, the simplified process flow reduces material waste and lowers overall production costs. The uniform gap between the handle and the housing results in a neat and aesthetically pleasing appearance, enhancing the product's market competitiveness. In summary, this utility model, through its innovative structural design, solves the problems of low assembly efficiency and poor aesthetics in existing technologies, demonstrating significant technological progress and practical value. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention. Figure 1 .

[0019] Figure 3 This is a cross-sectional view of the present invention. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the fit between the gear and rack of this utility model.

[0021] Figure 5 This is a schematic diagram of the handle assembly in this utility model.

[0022] Figure 6 This is a schematic diagram of the fixing sleeve in this utility model.

[0023] Figure 7 This is a schematic diagram of the toothed sleeve in this utility model. Detailed Implementation

[0024] 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 a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0028] 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.

[0029] Referring to the accompanying drawings, this utility model provides a thermostatic valve control handle structure, aiming to solve the problems of low assembly efficiency, poor appearance, and uneven gaps caused by existing thermostatic valve control handle structures. The thermostatic valve control handle structure of this utility model includes a faucet body 10, a connecting hole 11, an adapter sleeve 20, a handle assembly 30, and a valve core 40. The valve core can be a thermostatic valve core or a constant temperature valve core. The faucet body 10 is provided with a connecting hole 11, and an adapter sleeve 20 is fitted inside the connecting hole 11 to achieve axial fixation. After installation, the adapter sleeve no longer moves axially (A). The adapter sleeve 20 is fitted with a handle assembly 30, which can rotate relative to the adapter sleeve 20. Similarly, the handle gradually stops moving axially. A gear 42 is provided on the outer periphery of the valve stem 41 of the valve core 40, and a toothed groove 311 is provided on the handle assembly 30 at a corresponding position. The teeth of the gear 42 can be inserted into the toothed groove 311 to drive the valve stem 41 to rotate. Specifically, the gear 42 is mounted on an independent gear sleeve 43, which is fixedly connected to the valve stem 41 by a locking screw 44, thereby enhancing the connection strength between the gear 42 and the valve stem 41.

[0030] To reduce friction and wear between gear 42 and tooth groove 311, the width K1 of tooth groove 311 is designed to be greater than the tooth width K2 of gear 42, preferably more than twice the tooth width. This design creates a gap between gear 42 and tooth groove 311, and although this gap is relatively large, it ensures the meshing relationship between the two, thereby reducing the friction generated during rotation and improving the smoothness of operation and service life.

[0031] The handle assembly 30 is provided with a first locking block 312, and the inner circumference of the adapter sleeve 20 is provided with a second locking block 21, which can be a complete ring. The first locking block 312 and the second locking block 21 are connected by a mating joint to restrict the axial movement between the handle assembly 30 and the adapter sleeve 20. Specifically, the first locking block 312 and the second locking block 21 are respectively provided with a first guide surface 313 and a second guide surface 22. These guide surfaces guide the locking blocks to align correctly during assembly, ensuring the accuracy and reliability of the assembly. Assembly can also be performed in a flexible manner, similar to existing technology, and will not be described in detail here. The first locking block 312 and the second connecting tooth 314 are located at different axial positions on the outer circumference of the fixed sleeve 31, further enhancing the stability of the structure. The first locking block is closer to the valve core, and the second connecting tooth is closer to the handle assembly.

[0032] The handle assembly 30 consists of a knob 32 and a retaining sleeve 31. A first connecting tooth 321 is provided on the inner circumference of the knob 32, and a second connecting tooth 314 is provided on the outer circumference of the retaining sleeve 31. The first connecting tooth 321 and the second connecting tooth 314 mesh to achieve synchronous rotation. A tooth groove 311 is provided on the inner circumference of the retaining sleeve 31 for meshing with a gear 42. This design allows the rotation of the knob 32 to drive the retaining sleeve 31 to rotate synchronously, which in turn drives the valve stem 41 to rotate through the meshing of the gear 42 and the tooth groove 311, thereby achieving water temperature regulation.

[0033] Furthermore, the handle assembly 30 also includes a bushing 33, which is mounted on the fixed sleeve 31, preferably in a fixed installation, allowing for synchronous rotation, and a button 34 is provided therein. The knob 32 has an opening 322 adapted to the button 34, and the button 34 is connected to the abutment portion 23 inside the adapter sleeve 20 via a stop rod 22. Specifically, the adapter sleeve 20 has a first arc-shaped surface 24 and a second arc-shaped surface 25 inside. Rotation of the knob 32 causes the stop rod 22 to contact these two arc-shaped surfaces sequentially. The radius of the first arc-shaped surface 24 is smaller than the radius of the second arc-shaped surface 25, and the abutment portion 23 is located between them. The abutment portion is used to control the angle of valve stem rotation, thereby limiting the outlet water temperature. Only when the button is pressed can the stop rod move down to the first arc-shaped surface for rotation, achieving a higher outlet water temperature. The temperature at the abutment portion is a set temperature that will not cause scalding, such as 40°C.

[0034] A spring 35 is provided between the button 34 and the bushing 33. When the button 34 is not pressed, the spring 35 pushes the lever 22 towards the second arc-shaped surface 25, maintaining the normal water temperature. When the button 34 is pressed, the lever 22 is pushed towards the first arc-shaped surface 24, where the temperature is higher and may scald the user. Therefore, this abutment is used to create a temperature setting limit, allowing the lever and button to move radially synchronously. This elastic reset mechanism ensures the flexibility and reliability of the button 34 operation. In operation, the user can press the button 34 to change the position of the lever 22, thereby adjusting the rotation angle of the knob 32 to achieve different temperature settings. The first arc-shaped surface has a higher temperature. For example, when the user needs a higher water temperature, they can press the button 34 to bring the lever 22 into contact with the first arc-shaped surface 24. When the user releases the button 34, the spring 35 returns the lever 22 to the second arc-shaped surface 25, allowing for normal temperature adjustment. The two arc-shaped surfaces can be considered as two arc-shaped grooves.

[0035] The thermostatic valve control handle structure of this invention can significantly improve assembly efficiency in practical applications. Traditional thermostatic valve control handle structures, due to the rigid coaxial connection between the handle and the valve core, are prone to problems such as part deformation and uneven gaps during assembly, leading to low assembly efficiency. This invention solves these problems through the adapter sleeve 20 and flexible connection design. During assembly, the adapter sleeve 20 is first installed in the connecting hole 11 of the faucet body 10, ensuring that the adapter sleeve 20 is axially fixed to the faucet body 10. Then, the fixing sleeve 31 with toothed grooves 311 is inserted into the adapter sleeve 20. The axial movement between the fixing sleeve 31 and the adapter sleeve 20 is restricted by the engagement of the first locking block 312 and the second locking block 21. Next, the knob 32 is installed on the fixing sleeve 31. The engagement of the first connecting tooth 321 and the second connecting tooth 314 ensures that the knob 32 rotates synchronously with the fixing sleeve 31. Finally, the valve core 40 with gear 42 is inserted into the connection hole 11, and the gear sleeve 43 is fixedly connected to the valve stem 41 by the locking screw 44 to ensure a reliable connection between the gear 42 and the valve stem 41.

[0036] During use, the user can adjust the water temperature by rotating the knob 32. The rotation of the knob 32 drives the fixed sleeve 31 to rotate synchronously through the meshing of the first connecting tooth 321 and the second connecting tooth 314. This, in turn, drives the valve stem 41 to rotate through the meshing of the tooth groove 311 and the gear 42, thus adjusting the water temperature. Because the width of the tooth groove 311 is greater than the tooth width of the gear 42, the gap between them reduces friction and wear, making the rotation of the knob 32 smoother. Simultaneously, the cooperative design of the first locking block 312 and the second locking block 21 ensures a stable connection between the handle assembly 30 and the adapter sleeve 20, avoiding the risk of loosening or detachment.

[0037] To further improve the product's aesthetics and user experience, this invention features a mating structure between the baffle 22 and the arc-shaped surface. When the user does not press the button 34, the baffle 22 contacts the second arc-shaped surface 25, limiting the rotation angle of the knob 32, allowing for normal temperature adjustment. When the user requires a higher water temperature, pressing the button 34 brings the baffle 22 into contact with the first arc-shaped surface 24. This design not only enhances the product's appearance but also improves the user experience.

[0038] The thermostatic valve control handle structure of this invention is not only applicable to straight-sided faucets, but also to other faucets with a lip-shaped outer shell and a handle coaxially. For example, in a straight-sided faucet, the user can adjust the water temperature or flow by rotating the knob 32. The rotation of the knob 32 drives the valve stem 41 to rotate through the meshing of the gear 42 and the tooth groove 311. In faucets with lip-shaped outer shells, the uneven gap between the handle and the shell is more pronounced due to the lip design. This invention effectively solves this problem through the adapter sleeve 20 and flexible connection design, making the gap between the handle and the shell uniform, avoiding friction and misalignment, and improving the overall aesthetics and service life of the product.

[0039] In practical use, users can select different temperature adjustment modes as needed. For example, when a user needs to make regular temperature adjustments, they can leave button 34 unpressed. In this case, lever 22 contacts the second arc-shaped surface 25, and knob 32 rotates at a larger angle, allowing the user to quickly adjust the water temperature. This multi-mode adjustment design enables the temperature control handle structure of this utility model to meet the needs of different users, improving the product's applicability and market competitiveness.

[0040] In summary, the thermostatic valve control handle structure of this utility model, through the adapter sleeve 20 and flexible connection design, solves the problem of part deformation caused by excessively long dimensional chains in traditional structures, significantly improving assembly efficiency. The clearance design between gear 42 and tooth groove 311 reduces friction and wear, improving the smoothness of operation and service life. The uniform gap between the handle and the outer shell avoids the friction and misalignment problems in traditional structures, improving the product's appearance quality. The cooperation between the stop lever 22 and the arc-shaped surface enables precise control of the rotation angle of the knob 32, meeting users' refined needs for water temperature or flow adjustment. The design of snap-fit ​​blocks, guide surfaces, and locking screws enhances the stability and reliability of the overall structure, avoiding the risk of loosening and falling off. The thermostatic valve control handle structure of this utility model has wide applicability and good market prospects in practical applications.

[0041] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A thermostatic valve control handle structure, comprising a faucet body having a connection hole, and a valve core adapted to the connection hole, characterized in that, An adapter sleeve that can be axially fixed to the main body is fitted inside the connecting hole. A handle assembly is fitted inside the adapter sleeve. The handle assembly can rotate relative to the connecting sleeve. A gear is provided on the outer periphery of the valve stem of the valve core. A tooth groove is provided on the handle assembly. The teeth of the gear can be inserted into the tooth groove so that the rotation of the handle assembly can drive the valve stem to rotate. The width of the tooth groove is greater than the width of the tooth so that a gap is formed between the gear tooth and the tooth groove.

2. The temperature control valve control handle structure according to claim 1, characterized in that, It also includes a gear sleeve, on which the gear is mounted, and the gear sleeve can be connected to the valve stem via a locking screw.

3. The temperature control valve control handle structure according to claim 2, characterized in that, The width of the tooth groove is greater than twice the width of the tooth.

4. A temperature control valve control handle structure according to any one of claims 1-3, characterized in that, The handle assembly is provided with a first locking block, and the inner circumference of the connecting sleeve is provided with a second locking block. The first locking block can cooperate with the second locking block to restrict the axial movement of the handle and the connecting sleeve.

5. The temperature control valve control handle structure according to claim 4, characterized in that, The handle assembly includes a knob and a retaining sleeve. The inner circumference of the knob is provided with a first connecting tooth, and the outer circumference of the retaining sleeve is provided with a second connecting tooth. The first connecting tooth can engage with the second connecting tooth so that the knob can drive the retaining sleeve to rotate synchronously. The tooth groove is provided on the inner circumference of the retaining sleeve.

6. The temperature control valve control handle structure according to claim 5, characterized in that, The first snap-fit ​​block is disposed on the outer periphery of the fixed sleeve, and the first snap-fit ​​block is also provided with a first guide surface, and the second snap-fit ​​block is provided with a second guide surface.

7. The temperature control valve control handle structure according to claim 6, characterized in that, The first snap-fit ​​block and the second connecting tooth are located at different axial positions on the outer periphery of the fixed sleeve.

8. A temperature control valve control handle structure according to any one of claims 5-7, characterized in that, The handle assembly also includes a bushing that can be mounted on a fixed sleeve. A button is fitted inside the bushing. The knob has an opening that can be adapted to the button. A stop bar is also connected to the button. The stop bar can be inserted into an adapter sleeve. The adapter sleeve has an abutment that can cooperate with the stop bar to limit the rotation angle of the knob.

9. The temperature control valve control handle structure according to claim 8, characterized in that, The adapter sleeve is provided with a first arc-shaped surface and a second arc-shaped surface. The rotation of the knob can enable the stop bar to engage with the first arc-shaped surface and the second arc-shaped surface. The radius of the first arc-shaped surface is smaller than the radius of the second arc-shaped surface. The abutting part is located between the first arc-shaped surface and the second arc-shaped surface.

10. The temperature control valve control handle structure according to claim 9, characterized in that, A spring is provided between the button and the bushing; when the button is not pressed, the stop rod can be connected with the second arc-shaped surface, and when the button is pressed, the stop rod can be connected with the first arc-shaped surface.

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