Constant temperature body anti-freezing structure

Abstract

The utility model discloses a constant temperature body anti -freezing structure relates to plumbing bathroom technical field, including the shell, and the both ends of shell are equipped with first valve body and second valve body, and the inside of shell is equipped with water channel, and water channel is located between first valve body and second valve body, and the outside circumferential side of water channel is equipped with buffer, and buffer has elastic member in, and the water in water channel can enter buffer, and when water freezes, can compress elastic member to absorb the stress of redundancy, protect water channel structure. Water channel is equipped with reinforcing pipe, and water can flow in reinforcing pipe, and when water freezes, reinforcing pipe can play the supporting role, avoid the stress of ice expansion and directly transfer to shell, can reduce the wall thickness of shell, improve the compactness of structure, can release more space for other functional module. Meanwhile, reinforcing pipe detachable installation can simplify structure and simplify production technology, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plumbing and sanitary ware technology, and in particular to a thermostatic antifreeze structure. Background Technology

[0002] In the showerhead product sector, the water system (including the inlet main pipe, hot and cold water mixing channel, and outlet branches) is made of plastic, making it prone to freezing and cracking in low-temperature environments due to the expansion of frozen water inside. This is especially true in stress-concentrated areas such as pipe corners, thin-walled sections, and joint connections, severely impacting product reliability. Existing antifreeze structures mainly rely on increasing the strength of the plastic material or thickening the water channel walls. However, the former leads to a significant increase in raw material costs, while the latter occupies internal space, limiting the layout flexibility of key components such as valve cores and filter modules, and hindering the development of miniaturized and multifunctional products. Therefore, there is an urgent need for a new antifreeze structure that balances antifreeze performance, cost control, and structural compactness. 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 a thermostatic antifreeze structure with a compact structure and improved antifreeze cracking performance.

[0004] A thermostat antifreeze structure according to an embodiment of the present invention includes: The outer casing has a first valve body and a second valve body at each end. The outer casing has a water channel located between the first valve body and the second valve body. A buffer is provided on the outer periphery of the water channel. The buffer has an elastic element inside. Water in the water channel can enter the buffer. When the water freezes, it can compress the elastic element. A detachable reinforcing pipe is provided inside the water channel. Water can flow in the reinforcing pipe.

[0005] A thermostatic antifreeze structure according to an embodiment of the present invention has at least the following beneficial effects: This embodiment includes an outer casing with a first valve body and a second valve body at each end. Inside the casing is a water channel located between the first and second valve bodies. A buffer is located on the outer periphery of the water channel, containing an elastic element. Water can enter the buffer, and when the water freezes, it compresses the elastic element, absorbing excess stress and protecting the water channel structure. A reinforcing pipe is installed inside the water channel, allowing water to flow within it. When the water freezes, the reinforcing pipe provides support, preventing the stress from ice expansion from being directly transmitted to the outer casing. This reduces the outer casing's wall thickness, improves structural compactness, and frees up more space for other functional modules. Furthermore, the reinforcing pipe is detachable, simplifying the structure and manufacturing process, and improving production efficiency.

[0006] According to some embodiments of the present invention, the outer peripheral wall of the reinforcing tube abuts against the inner peripheral wall of the waterway, and the peripheral wall of the reinforcing tube is provided with a through hole for connecting the reinforcing tube and the inner cavity of the buffer, so as to ensure that the reinforcing tube can support the waterway and that water can enter the inner cavity of the buffer.

[0007] According to some embodiments of the present invention, there is a gap between the outer peripheral wall of the reinforcing tube and the inner peripheral wall of the waterway, and the gap can connect the inner cavity of the reinforcing tube and the buffer.

[0008] According to some embodiments of the present invention, a support member is provided around the outer periphery of the reinforcing pipe, and the support member can abut against the inner peripheral wall of the waterway, thereby creating a gap between the outer peripheral wall of the reinforcing pipe and the inner peripheral wall of the waterway.

[0009] According to some embodiments of the present invention, the outer peripheral wall of the reinforcing pipe is provided with a plurality of spaced support members, which are arranged around the circumference of the reinforcing pipe so that water can flow along the length of the waterway in the gaps.

[0010] According to some embodiments of the present invention, the outer casing is provided with a first water inlet and a second water inlet, and the first water inlet and the second water inlet are respectively provided with a first channel and a second channel between them and the first valve body.

[0011] According to some embodiments of the present invention, the buffer includes an elastic element and a movable element. The movable element is located on the side near the reinforcing tube and can move within the inner cavity of the buffer. When water freezes, it can push the movable element to move, thereby compressing the elastic element.

[0012] According to some embodiments of this utility model, the reinforcing tube is made of metal.

[0013] According to some embodiments of the present invention, the outer shell is provided with a water outlet, and there is a water outlet channel connecting the two between the water outlet and the second valve body.

[0014] According to some embodiments of this utility model, water can enter the first valve body from the first inlet and the second inlet, and water can enter the second valve body from the first valve body through the water channel, thereby realizing the function of mixing hot and cold water.

[0015] 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

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a first cross-sectional view of a thermostatic antifreeze structure in an embodiment of this utility model; Figure 2 for Figure 1 A magnified view of A in the middle; Figure 3 for Figure 1 A magnified view of B in the middle; Figure 4 This is a second cross-sectional view of a thermostatic antifreeze structure in an embodiment of this utility model; Figure 5 This is a third cross-sectional view of a thermostatic antifreeze structure in an embodiment of this utility model; Figure 6 for Figure 5 A magnified view of C.

[0017] Figure label: 100 outer casing; 101 first valve body; 102 second valve body; 103 water channel; 104 reinforcing pipe; 105 support member; 106 gap; 107 first water inlet; 108 second water inlet; 109 first channel; 110 second channel; 111 water outlet; 112 water outlet channel; 113 buffer member; 114 through hole; Buffer 120; elastic element 121; movable element 122; inner cavity 123; sealing ring 124. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Reference Figure 1 This invention discloses a thermostatic antifreeze structure, primarily used in plumbing and sanitary ware products such as shower heads and mixing valves. It aims to solve the problem of existing plastic water circuits cracking due to internal water freezing and expansion in low-temperature environments. The structure includes an outer shell, with a first valve body and a second valve body at each end. Inside the shell is at least one water channel located between the first and second valve bodies, used for the flow of hot and cold water or mixed water. A buffer is provided on the outer periphery of the water channel, containing an elastic element. Water can enter the buffer, and when the water freezes, it compresses the elastic element, absorbing excess stress and protecting the water channel structure. A reinforcing pipe is provided inside the water channel, allowing water to flow within it. When the water freezes, the reinforcing pipe provides support, preventing the stress from freezing and expansion from being directly transmitted to the outer shell. This reduces the shell's wall thickness, improves structural compactness, and frees up more space for other functional modules. Furthermore, the reinforcing pipe is detachable, simplifying the structure and manufacturing process, and improving production efficiency.

[0023] Specifically, refer to Figure 2 The buffer 120 includes a movable element 122 and an elastic element 121, which are located within the inner cavity 123 of the buffer 120. The movable element 122 is located near the reinforcing tube 104 and is typically a piston or diaphragm that can move along the inner cavity 123. The elastic element 121 is a coil spring, one end of which is fixed to the inner end wall of the buffer 120, and the other end is connected to the movable element 122. When the water in the waterway 103 freezes and expands, the pressure is transmitted to the inner cavity 123 of the buffer 120 through the through hole 114 or the gap 106, pushing the movable element 122 to move, thereby compressing the elastic element 121, thus absorbing and releasing part of the expansion stress and preventing the outer shell 100 or the waterway 103 from rupturing due to excessive pressure. Once the pressure exceeds the set threshold, the movable part 122 continues to move, increasing the volume of the inner cavity 123, thereby temporarily storing some water or releasing pressure. When the ice melts and the pressure drops, the elastic part 121 returns to its original state, pushing the movable part 122 back to its original position, and the buffer 120 returns to a sealed state. Furthermore, a sealing ring 124 is provided on the outer periphery of the movable part 122, and the sealing ring 124 abuts against the inner peripheral wall of the inner cavity 123, thereby preventing water leakage.

[0024] Understandably, the reinforcing pipe 104 is installed in the water channel 103 in a detachable manner, allowing water to flow inside. The reinforcing pipe 104 is typically made of a metal material, such as stainless steel, which has high mechanical strength and pressure resistance. When the water in the water channel 103 freezes and expands, the reinforcing pipe 104 effectively supports the inner wall of the water channel 103, dispersing the stress generated by the ice expansion and preventing stress concentration that could cause the outer casing 100 to crack. Simultaneously, because the reinforcing pipe 104 undertakes part of the structural support function, the wall thickness of the outer casing 100 can be appropriately reduced, thereby improving the overall structural compactness and leaving more space for the arrangement of other internal functional modules such as valve cores and filters.

[0025] Reference Figure 5 and Figure 6 In some embodiments, the outer peripheral wall of the reinforcing tube 104 directly abuts against the inner peripheral wall of the water channel 103, with the two fitting tightly together. In this case, to allow water in the water channel 103 to enter the buffer 120, a through hole 114 is provided on the peripheral wall of the reinforcing tube 104. The through hole 114 can connect the interior of the reinforcing tube 104 with the inner cavity 123 of the buffer 120, ensuring that the expansion pressure of water or ice can be transmitted to the buffer 120.

[0026] In other implementations, such as Figures 1 to 3 As shown, a certain gap 106 is maintained between the outer peripheral wall of the reinforcing pipe 104 and the inner peripheral wall of the waterway 103. This gap 106 not only facilitates water flow but also helps to evenly transmit water pressure to the buffer 120. The existence of the gap 106 ensures that the reinforcing pipe 104 does not completely block the waterway 103, thus guaranteeing smooth water flow and facilitating the release of pressure during ice expansion.

[0027] To ensure stable installation of the reinforcing pipe 104 in the waterway 103, while maintaining the uniformity of the gap 106, a surrounding support 105 can be provided around the outer periphery of the reinforcing pipe 104. (Refer to...) Figure 3 The support member 105 can be an annular flange or a segmented retaining strip, with its outer edge abutting against the inner peripheral wall of the waterway 103, thereby forming a stable gap 106 between the outer peripheral wall of the reinforcing pipe 104 and the inner peripheral wall of the waterway 103. Furthermore, the support member 105 has a segmented structure, and multiple support members 105 can be arranged at intervals along the axial direction of the reinforcing pipe 104 and evenly distributed around the circumference of the reinforcing pipe 104. This ensures the stable positioning of the reinforcing pipe 104 and allows water to flow along the length of the waterway 103 within the gap 106, avoiding localized blockages.

[0028] Reference Figure 4It is understood that the outer casing 100 is also provided with a first water inlet 107 and a second water inlet 108, which are used to connect cold water and hot water, respectively. The first water inlet 107 is connected to the first valve body 101 through a first channel 109, and the second water inlet 108 is connected to the first valve body 101 through a second channel 110. After the cold water and hot water enter the first valve body 101, the water flow rate of the first channel 109 and the second channel 110 is adjusted by the first valve body 101 to mix or regulate the flow, and then the water flows into the second valve body 102 through the water channel 103.

[0029] Understandably, the second valve body 102 is used to control the water flow rate. The housing 100 also has a water outlet 111, which is connected to the second valve body 102 via a water outlet channel 112. To enhance the overall structure's freeze resistance, a buffer element 113 can be installed inside the water outlet channel 112. The buffer element 113 is typically made of an elastic material, such as rubber or silicone, which can further absorb expansion stress when the water freezes, protecting the water outlet channel 112 from damage.

[0030] Understandably, cold water and hot water enter the first valve body 101 through the first inlet 107 and the second inlet 108, respectively, via the first channel 109 and the second channel 110. After mixing within the first valve body 101, the water flows into the water channel 103. The water then flows through the inside of the reinforcing pipe 104 or through the gap 106 into the second valve body 102, and finally flows out through the outlet channel 112 and the outlet 111 to the outside of the outer casing 100. In low-temperature environments, if residual water in the water path freezes, the stress generated by the expansion of the ice is first borne by the reinforcing pipe 104, preventing the outer casing 100 from being directly stressed. At the same time, part of the pressure is transmitted to the buffer 120 through the through hole 114 or the gap 106, pushing the moving part 122 to compress the elastic part 121, thus achieving pressure buffering and release. The entire process requires no external intervention; the structure responds automatically, effectively preventing freezing and cracking.

[0031] This invention achieves a dual antifreeze mechanism of "rigid support" and "elastic buffer" through the synergistic effect of the reinforcing tube 104 and the buffer 120, which can significantly improve the reliability of the product in low-temperature environments. At the same time, due to the more compact structure, the wall thickness of the outer shell 100 can be optimized, and the production cost and process difficulty are also significantly reduced, making it particularly suitable for the current development trend of miniaturization and multi-functionality of bathroom products.

[0032] 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 thermostatic antifreeze structure, characterized in that, include: The outer casing has a first valve body and a second valve body at each end. The outer casing has a water channel located between the first valve body and the second valve body. A buffer is provided on the outer periphery of the water channel. The buffer has an elastic element inside. Water in the water channel can enter the buffer. When the water freezes, it can compress the elastic element. A detachable reinforcing pipe is provided inside the water channel, and water can flow in the reinforcing pipe.

2. The thermostatic antifreeze structure according to claim 1, characterized in that, The outer peripheral wall of the reinforcing tube abuts against the inner peripheral wall of the waterway, and the peripheral wall of the reinforcing tube is provided with a through hole for connecting the reinforcing tube with the inner cavity of the buffer.

3. The thermostatic antifreeze structure according to claim 1, characterized in that, There is a gap between the outer peripheral wall of the reinforcing tube and the inner peripheral wall of the waterway, and the gap can connect the reinforcing tube with the inner cavity of the buffer.

4. The thermostatic antifreeze structure according to claim 1, characterized in that, The reinforcing pipe is provided with a surrounding support member, which can abut against the inner peripheral wall of the waterway, thereby creating a gap between the outer peripheral wall of the reinforcing pipe and the inner peripheral wall of the waterway.

5. The thermostatic antifreeze structure according to claim 4, characterized in that, The outer peripheral wall of the reinforcing tube is provided with a plurality of spaced-apart support members, which are arranged around the circumference of the reinforcing tube.

6. The thermostatic antifreeze structure according to claim 1, characterized in that, The outer casing is provided with a first water inlet and a second water inlet, and the first water inlet and the second water inlet are respectively connected to the first valve body through a first channel and a second channel.

7. The thermostatic antifreeze structure according to claim 1, characterized in that, The buffer includes the elastic element and the movable element, the movable element being located on the side near the reinforcing tube, and the movable element being movable within the inner cavity of the buffer.

8. The thermostatic antifreeze structure according to claim 1, characterized in that, The reinforcing tube is made of metal.

9. The thermostatic antifreeze structure according to claim 1, characterized in that, The outer casing is provided with a water outlet, and there is a water outlet channel connecting the water outlet and the second valve body.

10. A thermostatic antifreeze structure according to claim 6, characterized in that, Water can enter the first valve body from the first inlet and the second inlet, and water can enter the second valve body from the first valve body through the water passage.

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