Frost crack prevention water mixer

Abstract

The frost crack prevention water mixer comprises a water mixing channel shell and a frost crack prevention mechanism, the water mixing channel shell is provided with a cold water inlet, a hot water inlet, a water mixing cavity, a pressure relief opening and a plurality of water outlets, and the cold water inlet, the hot water inlet, the pressure relief opening and the water outlets are all communicated with the water mixing cavity; the frost crack prevention mechanism comprises a fixing block, a diaphragm and an elastic piece, the fixing block and the diaphragm are fixedly connected to the pressure relief opening, the diaphragm seals the pressure relief opening, one end of the elastic piece abuts against the fixing block, the other end of the elastic piece is fixedly connected with a cushion block, and the elastic piece is used for driving the cushion block to move in the direction away from the fixing block so that the cushion block can abut against the diaphragm. According to the frost crack prevention water mixer, the expansion volume of ice can be absorbed, and the possibility that the water mixing channel shell and the valve are cracked and damaged is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bathroom accessories technology, and in particular to an antifreeze and crack-resistant mixing valve. Background Technology

[0002] A mixing valve is a common bathroom accessory, primarily used to mix cold and hot water, regulate water temperature, and distribute it to different water outlets. The mixing valve typically contains a certain amount of water. In cold winter conditions, this water gradually freezes. As the water freezes, it expands, exerting an outward pressure on the inner wall of the mixing valve. This can cause the mixing valve to crack and become unusable, affecting normal user experience. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an anti-freezing and cracking mixing device that can absorb the expansion volume of ice and reduce the possibility of cracking damage.

[0004] According to a first aspect of the present invention, an anti-freezing and cracking mixing device includes a mixing channel housing and an anti-freezing and cracking mechanism. The mixing channel housing is provided with a cold water inlet, a hot water inlet, a mixing chamber, a pressure relief port, and a plurality of outlets. The cold water inlet, the hot water inlet, the pressure relief port, and the outlets are all connected to the mixing chamber. The anti-freezing and cracking mechanism includes a fixing block, a diaphragm, and an elastic element. The fixing block and the diaphragm are both fixedly connected to the pressure relief port, and the diaphragm closes the pressure relief port. One end of the elastic element abuts against the fixing block, and the other end of the elastic element is fixedly connected to a pad. The elastic element is used to drive the pad to move away from the fixing block so that the pad abuts against the diaphragm.

[0005] According to the embodiments of this utility model, the anti-freezing and cracking mixing device has at least the following beneficial effects: The cold water inlet, hot water inlet, and outlet are all connected to the mixing chamber, allowing cold and hot water to enter the mixing chamber through the cold water inlet and hot water inlet respectively, facilitating water temperature adjustment. The adjusted water can be output through the outlet. The pressure relief port is connected to the mixing chamber, and the fixing block and diaphragm are both fixedly connected to the pressure relief port. The diaphragm seals the pressure relief port so that when the water in the mixing chamber freezes, the expansion volume of the ice can be released to the pressure relief port, allowing the diaphragm to abut against the pad and compress the elastic element, causing the diaphragm to move closer to the fixing block. This increases the volume of the pressure relief port, reducing the expansion pressure within the mixing chamber housing, lowering the possibility of cracking damage, and improving reliability.

[0006] According to some embodiments of the present invention, the anti-freezing and cracking mechanism further includes a connecting ring, which is threadedly connected to the pressure relief port to press the diaphragm against the bottom wall of the pressure relief port.

[0007] According to some embodiments of the present invention, the diaphragm is connected to a connecting seat, the connecting seat includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are fixedly connected, the first clamping plate is provided with a pressure strip, the second clamping plate is provided with a pressure groove, and the pressure strip can press the diaphragm into the pressure groove.

[0008] According to some embodiments of the present invention, the connecting seat is provided with an annular protrusion on the side away from the connecting ring, and the annular protrusion abuts against the bottom wall of the pressure relief port.

[0009] According to some embodiments of the present invention, the cold water inlet and the hot water inlet are arranged on the same side of the mixing channel housing, and the wall thickness of the mixing channel housing gradually increases towards the cold water inlet or the hot water inlet, and the pressure relief port is arranged on the side of the mixing channel housing near the cold water inlet or the hot water inlet.

[0010] According to some embodiments of the present invention, the fixing block is provided with a positioning groove, one end of the elastic member is located in the positioning groove, and the other end of the elastic member abuts against the diaphragm.

[0011] According to some embodiments of the present invention, the elastic element is configured as a compression spring, a positioning rod is provided in the middle of the positioning groove, and the elastic element is sleeved in the positioning rod.

[0012] According to some embodiments of the present invention, the sidewall and upper surface of the pad are connected by an arc transition.

[0013] According to some embodiments of this utility model, the fixing block is threadedly connected to the inner wall of the pressure relief port.

[0014] 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

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a cross-sectional view of the antifreeze and crack-resistant mixing device according to an embodiment of the present utility model;

[0017] Figure 2 This is another cross-sectional view of the antifreeze and crack-resistant mixing device according to an embodiment of the present utility model;

[0018] Figure 3 for Figure 2 A magnified view of part A;

[0019] Figure 4 for Figure 3 A magnified view of section B.

[0020] Figure label:

[0021] Mixing channel housing 100, cold water inlet 110, hot water inlet 120, mixing chamber 130, pressure relief port 140, outlet 150;

[0022] Anti-freezing and cracking mechanism 200, fixing block 210, positioning groove 211, positioning rod 212, diaphragm 220, elastic element 230, pad block 231, connecting ring 240, connecting seat 250, first clamping plate 251, second clamping plate 252, pressure strip 253, pressure groove 254, annular protrusion 255. Detailed Implementation

[0023] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Understandably, referring to Figures 1 to 3The present invention relates to an anti-freezing and cracking mixing device, comprising a mixing channel housing 100 and an anti-freezing and cracking mechanism 200. The mixing channel housing 100 is provided with a cold water inlet 110, a hot water inlet 120, a mixing chamber 130, a pressure relief port 140, and several outlets 150. The cold water inlet 110, the hot water inlet 120, the pressure relief port 140, and the outlets 150 are all connected to the mixing chamber 130. The anti-freezing and cracking mechanism 200 includes a fixing block 2. 10. The diaphragm 220 and the elastic element 230, the fixing block 210 and the diaphragm 220 are all fixedly connected to the pressure relief port 140, and the diaphragm 220 closes the pressure relief port 140. One end of the elastic element 230 abuts against the fixing block 210, and the other end of the elastic element 230 is fixedly connected to the pad 231. The elastic element 230 is used to drive the pad 231 to move away from the fixing block 210 so that the pad 231 abuts against the diaphragm 220.

[0028] The cold water inlet 110, hot water inlet 120, and outlet 150 are all connected to the mixing chamber 130. Cold water and hot water can enter the mixing chamber 130 through the cold water inlet 110 and hot water inlet 120 respectively to facilitate water temperature adjustment. The adjusted water can be output through the outlet 150. The pressure relief port 140 is connected to the mixing chamber 130. The fixing block 210 and the diaphragm 220 are both fixedly connected to the pressure relief port 140, and the diaphragm 220 closes the pressure relief port 140. One end of the elastic element 230 abuts against the fixing block 210, and the other end is fixedly connected to the pad block 231, so that when the water in the mixing chamber 130 freezes, the expansion volume of the ice can be released to the pressure relief port 140, so that the diaphragm 220 can abut against the pad block 231 and compress the elastic element 230, so that the diaphragm 220 moves towards the fixing block 210, thereby increasing the volume of the pressure relief port 140, reducing the expansion pressure in the mixing channel housing 100, reducing the possibility of cracking damage, and improving reliability.

[0029] It should be noted that the pressure relief port 140 is connected to the mixing chamber 130, and the diaphragm 220 seals the pressure relief port 140 to prevent water from leaking out. When the water inside the mixing channel housing 100 freezes, the expansion volume of the ice can be released to the pressure relief port 140, allowing the diaphragm 220 to deform towards the fixed block 210. This compresses the elastic element 230 and absorbs the expansion pressure of the ice, reducing the pressure of the ice expansion volume on the mixing channel housing 100. This reduces the possibility of cracking damage to the mixing channel housing 100 and improves reliability. When the ice inside the mixing channel housing 100 melts, the elastic element 230 can push the pad 231 away from the fixed block 210, causing the diaphragm 220 to deform and reset away from the fixed block 210. This allows the diaphragm 220 to automatically reset, facilitating automatic absorption of the ice expansion volume next time without manual adjustment, thus improving ease of use.

[0030] Among them, the elastic element 230 can be a compression spring or a rubber or silicone component, etc., which are elastic elements and will not be described in detail here.

[0031] In addition, there are one or more pressure relief ports 140 and anti-freezing crack mechanisms 200. The pressure relief ports 140 and anti-freezing crack mechanisms 200 are in one-to-one correspondence. By setting multiple pressure relief ports 140 and multiple anti-freezing crack mechanisms 200, the pressure relief capacity can be enhanced, more ice expansion volume can be absorbed, and the possibility of cracking damage to the mixing channel shell 100 can be reduced.

[0032] Understandably, referring to Figure 2 and Figure 3 The anti-freezing and cracking mechanism 200 also includes a connecting ring 240, which is threadedly connected to the pressure relief port 140 to press the diaphragm 220 against the bottom wall of the pressure relief port 140. The diaphragm 220 is arranged in the pressure relief port 140, and the connecting ring 240 is screwed into the pressure relief port 140 so that the connecting ring 240 can press the diaphragm 220 against the bottom wall of the pressure relief port 140, thus fixing the diaphragm 220 in the pressure relief port 140 and maintaining a seal between the diaphragm 220 and the pressure relief port 140, preventing water leakage from the pressure relief port 140 and improving the sealing performance of the distributor.

[0033] It should be noted that the pressure relief port 140 is a stepped hole, and the outer radial direction of the pressure relief port 140 gradually increases away from the mixing chamber 130. By arranging the diaphragm 220 in the pressure relief port 140 and screwing the connecting ring 240 into the pressure relief port 140, the connecting ring 240 can press the diaphragm 220 tightly against the bottom wall of the pressure relief port 140, thereby fixing the position of the diaphragm 220 and improving reliability.

[0034] Specifically, refer to Figures 2 to 4 The diaphragm 220 is connected to a connecting seat 250, which includes a first clamping plate 251 and a second clamping plate 252. The first clamping plate 251 and the second clamping plate 252 are fixedly connected. The first clamping plate 251 has a protruding pressure strip 253, and the second clamping plate 252 has a pressure groove 254. The pressure strip 253 can press the diaphragm 220 into the pressure groove 254. By arranging the diaphragm 220 between the first clamping plate 251 and the second clamping plate 252, the pressure strip 253 can press the diaphragm 220 into the pressure groove 254, thus stabilizing the diaphragm 220 in the connecting seat 250 and reducing the possibility of the diaphragm 220 falling off the connecting seat 250.

[0035] In addition, the connecting ring 240 can drive the connecting seat 250 to abut against the bottom wall of the pressure relief port 140, so that the connecting ring 240 can be stably placed in the pressure relief port 140, preventing the diaphragm 220 from wrinkling when the connecting ring 240 rotates, which helps to improve the sealing between the diaphragm 220 and the pressure relief port 140. Moreover, the connecting ring 240 can drive the pressure strip 253 to extend into the pressure groove 254, so that the diaphragm 220 can be stably placed between the pressure strip 253 and the pressure groove 254, and can make the connection between the diaphragm 220 and the connecting seat 250 tight, reducing the possibility of water leakage and improving the sealing performance.

[0036] It should be noted that the first clamping plate 251 and the second clamping plate 252 can be fixed together by means of adhesive, snap-fit ​​connection or other methods, which are not limited here.

[0037] Specifically, refer to Figure 2 and Figure 3 An annular protrusion 255 is provided on the side of the connecting seat 250 away from the connecting ring 240, and the annular protrusion 255 abuts against the bottom wall of the pressure relief port 140. By providing the annular protrusion 255 on the side of the connecting seat 250 away from the connecting ring 240, the annular protrusion 255 can abut against the bottom wall of the pressure relief port 140 when the connecting ring 240 is screwed into the pressure relief port 140, thereby enhancing the sealing between the connecting seat 250 and the pressure relief port 140, effectively preventing water leakage from the gap between the connecting seat 250 and the pressure relief port 140, and improving reliability.

[0038] The annular flange 255 can be an elastic component such as a rubber component or a silicone component, which allows the annular flange 255 to absorb the gap between the connecting seat 250 and the pressure relief port 140, thereby improving the sealing performance.

[0039] Understandably, referring to Figure 2 and Figure 3 The cold water inlet 110 and the hot water inlet 120 are arranged on the same side of the mixing channel housing 100, and the wall thickness of the mixing channel housing 100 gradually increases towards the cold water inlet 110 or the hot water inlet 120. The pressure relief port 140 is arranged on the side of the mixing channel housing 100 near the cold water inlet 110 or the hot water inlet 120. By setting the wall thickness of the mixing channel housing 100 to gradually decrease towards the cold water inlet 110 or the hot water inlet 120, the heat transfer path of the water inside the mixing channel housing 100 is gradually extended towards the cold water inlet 110 or the hot water inlet 120, thereby guiding the order of water freezing. By setting a pressure relief port 140 on the side of the mixing channel housing 100 near the cold water inlet 110 or the hot water inlet 120, the water at the pressure relief port 140 can freeze last, allowing more of the ice expansion volume to be released into the pressure relief port 140, thereby reducing the expansion pressure borne by the mixing channel housing 100, reducing the possibility of cracking damage to the mixing channel housing 100, and improving reliability.

[0040] Understandably, referring to Figure 2 and Figure 3 The fixing block 210 has a positioning groove 211. One end of the elastic element 230 is located in the positioning groove 211, and the other end of the elastic element 230 abuts against the diaphragm 220. By opening the positioning groove 211 on the fixing block 210 and placing one end of the elastic element 230 in the positioning groove 211 and the other end abutting against the diaphragm 220, the position of the elastic element 230 is stabilized. This guides the elastic element 230 to compress or extend along the axial direction of the positioning groove 211, reducing the possibility of the elastic element 230 shifting. This allows the diaphragm 220 to be stably stressed, facilitating the stable absorption of ice expansion volume and improving the stability of pressure relief.

[0041] Specifically, refer to Figure 2 and Figure 3 The elastic element 230 is configured as a compression spring, and a positioning rod 212 is provided in the middle of the positioning groove 211, with the elastic element 230 sleeved in the positioning rod 212. By configuring the elastic element 230 as a compression spring and sleeved in the positioning rod 212, the position of the elastic element 230 is stabilized, effectively preventing instability such as bending, displacement, or twisting of the elastic element 230 during compression and reset. This allows the elastic element 230 to always extend and retract along the axial direction of the positioning groove 211, thereby more accurately exerting its elastic effect.

[0042] In addition, the pad 231 can abut against the end of the positioning rod 212, thereby limiting the degree of deformation of the diaphragm 220, preventing the diaphragm 220 from being damaged or torn due to excessive deformation, reducing the possibility of water leakage from the pressure relief port 140, and improving the reliability of the anti-freeze cracking mechanism 200.

[0043] Specifically, refer to Figure 2 and Figure 3 The sidewall and upper surface of the pad 231 are rounded. This reduces the possibility of the diaphragm 220 being scratched when it comes into contact with the pad 231, thus reducing the risk of damage to the diaphragm 220 and improving reliability.

[0044] Understandably, referring to Figure 2 and Figure 3 The fixing block 210 is threadedly connected to the inner wall of the pressure relief port 140. By setting the fixing block 210 to be threadedly connected to the inner wall of the pressure relief port 140, the fixing block 210 can move axially along the pressure relief port 140 when it is rotated. This allows for easy adjustment of the compression of the elastic element 230, which in turn allows for adjustment of the pressure relief sensitivity of the anti-freeze cracking mechanism 200, enabling the water distributor to better adapt to different operating environments and pressure conditions.

[0045] In addition, by setting the fixing block 210 to be threadedly connected to the pressure relief port 140, the fixing block 210 can be easily installed in the pressure relief port 140 without complicated tools and operating steps, which improves the convenience and efficiency of installation.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A freeze-proof mixing water heater, characterized by comprising: include: The mixing channel shell is provided with a cold water inlet, a hot water inlet, a mixing chamber, a pressure relief port, and several water outlets. The cold water inlet, the hot water inlet, the pressure relief port, and the water outlets are all connected to the mixing chamber. The anti-freezing and cracking mechanism includes a fixed block, a diaphragm, and an elastic element. The fixed block and the diaphragm are both fixedly connected to the pressure relief port, and the diaphragm closes the pressure relief port. One end of the elastic element abuts against the fixed block, and the other end of the elastic element is fixedly connected to a pad. The elastic element is used to drive the pad to move away from the fixed block so that the pad abuts against the diaphragm.

2. The freeze-proof mixing water heater according to claim 1, wherein The anti-freezing and cracking mechanism also includes a connecting ring, which is threaded to the pressure relief port to press the diaphragm against the bottom wall of the pressure relief port.

3. The freeze-proof mixing water heater according to claim 2, wherein The diaphragm is connected to a connecting seat, which includes a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are fixedly connected. The first clamping plate is provided with a pressure strip, and the second clamping plate is provided with a pressure groove. The pressure strip can press the diaphragm into the pressure groove.

4. The freeze-proof mixing water heater according to claim 3, wherein The connecting seat has an annular protrusion on the side away from the connecting ring, and the annular protrusion abuts against the bottom wall of the pressure relief port.

5. The freeze-proof mixing water heater according to claim 1, wherein The cold water inlet and the hot water inlet are arranged on the same side of the mixing channel housing, and the wall thickness of the mixing channel housing gradually increases towards the cold water inlet or the hot water inlet. The pressure relief port is arranged on the side of the mixing channel housing near the cold water inlet or the hot water inlet.

6. The freeze-proof hydronic mixer of claim 1, wherein The fixing block has a positioning groove, one end of the elastic element is located in the positioning groove, and the other end of the elastic element abuts against the diaphragm.

7. The freeze-proof hydronic mixer of claim 6, wherein The elastic element is configured as a compression spring, and a positioning rod is provided in the middle of the positioning groove, with the elastic element sleeved in the positioning rod.

8. The freeze-proof hydronic mixer of claim 1, wherein The sidewall and upper surface of the pad are connected by a rounded transition.

9. The freeze-proof hydronic mixer of claim 1, wherein, The fixing block is threadedly connected to the inner wall of the pressure relief port.

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