Temperature limiting ring, temperature adjusting hand wheel and water outlet device
By designing an arc-shaped guide surface and an anti-rotation locking position on the temperature limiting ring, the problem of inconsistent rotational torque of the temperature limiting ring of the thermostatic faucet is solved, achieving smooth operation and safe temperature control.
Patent Information
- Application Number
- CN202520415376.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The temperature limiting ring of the existing thermostatic faucet has inconsistent rotational torque when resetting from high temperature to low temperature, resulting in an unsmooth and sticky user experience.
A temperature limiting ring is designed with first and second limiting bars on the end face. The inner side of the limiting bar is an arc-shaped guide surface. Combined with anti-rotation locking position and anti-rotation protrusion, the design of the pressing and rotation path of the safety lock ensures consistent torque and smooth operation.
It achieves stable torque value of the temperature limiting ring, smooth operation, prevents misoperation, avoids high temperature burns or low temperature freezing, and provides a variety of temperature options.
Smart Images
Figure CN223768236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water outlet equipment technology, and in particular to a temperature limiting ring, a temperature adjusting handwheel, and a water outlet device. Background Technology
[0002] Existing thermostatic faucets have a temperature limiting ring between the thermostatic valve core and the temperature adjustment handwheel. The temperature adjustment handwheel is equipped with a positioning pin. The rotation of the temperature adjustment handwheel causes the positioning pin to rotate on the outer ring track of the temperature limiting ring until it contacts the conventional limit block on the temperature limiting ring, thereby limiting the rotation of the temperature adjustment handwheel and thus limiting the water temperature to the appropriate temperature for bathing, which is generally 40℃.
[0003] Patent CN116624649A discloses an unlocking device, whose temperature limiting ring has the following problems in actual use: when resetting from high temperature to low temperature, the rotational torque changes inconsistently, the feel of rotation becomes heavier and heavier, and the user experience is not smooth and jammed. Utility Model Content
[0004] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a temperature-limiting ring.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] This utility model also proposes a temperature-adjusting handwheel with the aforementioned temperature-limiting ring.
[0007] This utility model also proposes a water outlet device having the aforementioned temperature limiting ring.
[0008] According to a first aspect embodiment of the present invention, a temperature limiting ring is provided with a first limiting strip and a second limiting strip along its circumference on the end face of the temperature limiting ring. The first limiting strip has a first anti-rotation surface at its head end. The head end of the first limiting strip is opposite to the head end of the second limiting strip and the two are separated to form an anti-rotation locking position. An anti-rotation protrusion is provided on the inner side of the head end of the second limiting strip. The inner side of the first limiting strip is a first guide surface, and the inner side of the second limiting strip is a second guide surface. Both the first guide surface and the second guide surface are arc-shaped, and the centers of both are located on the axis of the temperature limiting ring.
[0009] The temperature limiting ring according to the embodiment of this utility model has at least the following beneficial effects:
[0010] 1. The first and second guide surfaces of the temperature limiting ring of this utility model are concentric with the main body of the temperature limiting ring. The path completed by rotating the handle is a concentric circle. The torque value will not change during operation, and the operation is smooth.
[0011] 2. This utility model can be set with corresponding temperature limit requirements according to different needs. The path from the first anti-rotation surface to the anti-rotation locking position is from the low temperature zone to the suitable temperature zone. The path from the anti-rotation locking position to the anti-rotation protrusion is from the suitable temperature zone to the high temperature zone. Each temperature limit point from the low temperature zone to the high temperature zone has a foolproof design. That is, the limiting functions of the first anti-rotation surface and the anti-rotation locking position require pressing the safety lock to operate, so as to prevent accidental operation from causing high temperature burns or low temperature freezing sensation.
[0012] According to some embodiments of the present invention, the anti-rotation protrusion has a second anti-rotation surface, which is arranged radially along the temperature limiting ring.
[0013] According to some embodiments of the present invention, the end of the first limiting strip and the beginning of the second limiting strip are both flat surfaces, which are arranged radially along the temperature limiting ring.
[0014] According to some embodiments of the present invention, a stop block is provided on the end face of the temperature limiting ring. The stop block is located inside the temperature limiting ring and is opposite to the anti-rotation locking position. A passage is left between the stop block and the first guide surface and the second guide surface.
[0015] According to some embodiments of the present invention, in the circumferential direction of the temperature limiting ring, the maximum width L1 of the stop block is not greater than the width L2 of the anti-rotation locking position.
[0016] According to some embodiments of the present invention, a first oblique surface is formed on the side of the stop block near the first guide surface.
[0017] According to some embodiments of the present invention, a second oblique surface is formed on the side of the stop block near the second guide surface.
[0018] According to some embodiments of the present invention, in the radial direction of the temperature limiting ring, the width of the second anti-rotation surface is L3, and the radial width of the end face of the temperature limiting ring is L4, where L3 ≥ L4 / 2.
[0019] The temperature-regulating handwheel according to a second aspect of the present invention includes the temperature-limiting ring.
[0020] The water outlet device according to a third aspect embodiment of the present invention includes the temperature limiting ring or the temperature adjusting handwheel.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is an overall structural diagram of the first embodiment of the present utility model;
[0024] Figure 2 This is an operation path diagram of the first embodiment of this utility model;
[0025] Figure 3 This is an overall structural diagram of the second embodiment of the present utility model;
[0026] Figure 4 This is a diagram showing the operation path from low temperature to high temperature according to the second embodiment of this utility model;
[0027] Figure 5 This is the operation path diagram from high temperature to low temperature in the second embodiment of this utility model.
[0028] Reference numerals: First limiting strip 100, first anti-rotation surface 110, first guide surface 120, second limiting strip 200, second guide surface 210, anti-rotation locking position 300, anti-rotation protrusion 400, second anti-rotation surface 410, stop block 500, first oblique cut surface 510, second oblique cut surface 520. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0030] Reference Figure 1-2 A temperature limiting ring is provided with a first limiting strip 100 and a second limiting strip 200 along its circumference on its end face. The first limiting strip 100 has a straight first anti-rotation surface 110 at its beginning end. The end of the first limiting strip 100 is opposite to the beginning of the second limiting strip 200 and is separated from it to form an anti-rotation locking position 300. An anti-rotation protrusion 400 is provided on the inner side of the end of the second limiting strip 200. The inner side of the first limiting strip 100 is a first guide surface 120, and the inner side of the second limiting strip 200 is a second guide surface 210. Both the first guide surface 120 and the second guide surface 210 are arc-shaped, and their centers are located on the axis of the temperature limiting ring. It should be noted that the term "inner side" mentioned in this article refers to the side closer to the center of the temperature limiting ring. In addition, multiple limiting bars such as the third and fourth limiting bars can be set on the temperature limiting ring. Adjacent limiting bars are separated by anti-rotation clamps 300, which allows users to choose more stopping positions and provide more diverse outlet water temperatures.
[0031] Working principle: such as Figure 2 As shown, (1) Operation path from low temperature to suitable temperature: rotate the handle to complete path a → press the safety lock and rotate to path b → release the safety lock and rotate to complete path b → the safety lock automatically jumps to the anti-rotation position 300. (2) Operation path from suitable temperature to high temperature: press the safety lock and rotate to path c → release the safety lock and continue rotating to complete path c → stop at the anti-rotation protrusion 400. (3) Operation path from high temperature to suitable temperature: rotate the handle to complete path c → the safety lock automatically jumps to the anti-rotation position 300. (4) Operation path from suitable temperature to low temperature: press the safety lock and rotate to path b → release the safety lock and continue rotating to complete path b → the safety lock automatically jumps to the first anti-rotation surface 110 → rotate the handle to complete path a → stop at the anti-rotation protrusion 400.
[0032] In some embodiments of this utility model, the anti-rotation protrusion 400 has a second anti-rotation surface 410, which is arranged radially along the temperature limiting ring. The second anti-rotation surface 410 is perpendicular to the second guide surface 210, ensuring that the load-bearing torque strength of the second anti-rotation surface 410 is large enough to prevent slippage during strong rotation.
[0033] In some embodiments of this utility model, the end of the first limiting strip 100 and the beginning of the second limiting strip 200 are both flat surfaces, which are arranged radially along the temperature limiting ring. The two sides of the anti-rotation locking position 300 are flat surfaces, which facilitates the entry and exit of the positioning pin and also ensures that the anti-rotation locking position 300 has sufficient torque bearing capacity and will not slip during strong rotation.
[0034] In some embodiments of this utility model, reference is made to Figure 3-5 A stop 500 is provided on the end face of the temperature limiting ring. The stop 500 is located inside the temperature limiting ring and opposite the anti-rotation locking position 300. Passageways are provided between the stop 500 and both the first guide surface 120 and the second guide surface 210. The stop 500 is provided to prevent accidental operation when the safety lock is pressed, which could cause the operation to exceed the anti-rotation locking position 300 and directly enter the high-temperature zone. The operating path from low temperature to high temperature (e.g., Figure 4 As shown): Rotate the handle to complete path a → Press the safety lock to complete path b → Rotate the handle to complete path c → Release the safety lock to complete path d → Press the safety lock to complete path e → Rotate the handle to complete path f. Operating path from high temperature to low temperature (e.g.) Figure 5 As shown): Rotate the handle to complete path g → Press the safety lock with the handle to complete path h → Rotate the handle to complete path j → Rotate the handle to complete path k.
[0035] In some embodiments of this invention, the maximum width L1 of the stop block 500 in the circumferential direction of the temperature limiting ring is not greater than the width L2 of the anti-rotation locking position 300. When the positioning pin of the safety lock stops at the stop block 500, releasing the safety lock allows the positioning pin to slide directly into the anti-rotation locking position 300.
[0036] In some embodiments of this utility model, a first oblique surface 510 is formed on the side of the stop block 500 near the first guide surface 120. The first oblique surface 510 has a guiding function, and when the safety lock is released, the positioning pin slides directly into the anti-rotation locking position 300 through the first oblique surface 510.
[0037] In some embodiments of this utility model, a second oblique surface 520 is formed on the side of the stop block 500 near the second guide surface 210. The second oblique surface 520 has a clearance function, so that when the handle is rotated from high temperature to low temperature, the positioning pin will not be blocked by the stop block 500 when it slides into the anti-rotation lock 300, ensuring smooth operation.
[0038] In some embodiments of this utility model, the width of the second anti-rotation surface 410 in the radial direction of the temperature limiting ring is L3, and the radial width of the end face of the temperature limiting ring is L4, where L3 ≥ L4 / 2. The radial width of the second anti-rotation surface 410 is large enough to ensure that the second anti-rotation surface has sufficient torque-bearing capacity, preventing it from directly passing over the anti-rotation protrusion and entering the low-temperature zone when the handle is turned forcefully.
[0039] A temperature-regulating handwheel includes the aforementioned temperature-limiting ring. Specifically, the temperature-regulating handwheel also includes a safety lock assembly, which includes a positioning pin and a spring abutting against the positioning pin. Rotation of the temperature-regulating handwheel causes the positioning pin to move on the end face of the temperature-limiting ring, and the specific movement process has been described in detail above.
[0040] A water outlet device includes the aforementioned temperature limiting ring or the aforementioned temperature adjusting handwheel.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A temperature limited ring, characterized in that, The end surface of the temperature-limiting ring is provided with a first limiting strip (100) and a second limiting strip (200) along the circumference thereof, the leading end of the first limiting strip (100) is formed with a first rotation-stopping surface (110), the trailing end of the first limiting strip (100) is opposite to the leading end of the second limiting strip (200), and the two are spaced apart to form a rotation-stopping stop (300), the inner side of the trailing end of the second limiting strip (200) is provided with a rotation-stopping protrusion (400), the inner side surface of the first limiting strip (100) is a first guide surface (120), the inner side surface of the second limiting strip (200) is a second guide surface (210), the first guide surface (120) and the second guide surface (210) are both circular arcs, and the centers of the two are located on the axis of the temperature-limiting ring.
2. The temperature limited heater of claim 1, wherein, The rotation-stopping protrusion (400) is provided with a second rotation-stopping surface (410) along the radial direction of the temperature-limiting ring.
3. The temperature limited heater of claim 1, wherein, The trailing end of the first limiting strip (100) and the leading end of the second limiting strip (200) are both flat surfaces, which are arranged along the radial direction of the temperature-limiting ring.
4. The temperature limited heater of claim 1, wherein, The end surface of the temperature-limiting ring is provided with a stop block (500), which is located on the inner side of the temperature-limiting ring and opposite to the rotation-stopping stop (300), and a passageway is left between the stop block (500) and the first guide surface (120) and the second guide surface (210).
5. The temperature limited heater of claim 4, wherein, In the circumferential direction of the temperature-limiting ring, the maximum width L1 of the stop block (500) is not greater than the width L2 of the rotation-stopping stop (300).
6. The temperature limited heater of claim 5, wherein, The side of the stop block (500) close to the first guide surface (120) is formed with a first beveled surface (510).
7. The temperature limited heater of claim 5, wherein, The side of the stop block (500) close to the second guide surface (210) is formed with a second beveled surface (520).
8. The temperature limited heater of claim 2, wherein, In the radial direction of the temperature-limiting ring, the width of the second rotation-stopping surface (410) is L3, and the radial width of the end surface of the temperature-limiting ring is L4, L3≥L4 / 2.
9. A temperature regulating handwheel characterized by, The temperature-limiting ring of any one of claims 1-8.
10. A water outlet device characterized by comprising: The temperature-limiting ring of any one of claims 1-8 or the temperature-adjusting hand wheel of claim 9.