A kind of anti-freezing crack waterway and water outlet device

Abstract

The utility model discloses an anti-freezing cracking waterway and a water outlet device, wherein an anti-freezing cracking waterway comprises a water-passing assembly, a fastener and an elastic member; the water-passing assembly comprises a waterway body made of plastic material; the waterway body is provided with a water flow channel, the waterway body is provided with a pressure relief hole connected to the water flow channel, and the fastener is fixed to the waterway body; the elastic member is placed between the fastener and the waterway body and is used to block the pressure relief hole, and the elastic member is suitable for elastic deformation to open the pressure relief hole when the hydraulic pressure in the waterway body is greater than a threshold value. The utility model provides an anti-freezing cracking waterway and a water outlet device, wherein the anti-freezing cracking waterway can effectively release the pressure generated by ice expansion, and avoid damage to the plastic waterway body and matching parts due to ice formation in cold weather. At the same time, the assembly is adaptable to narrow spaces and has a small working stroke.

Description

Technical Field

[0001] The utility model relates to the sub-technical field of water outlet devices, in particular to an anti-freezing cracking waterway and a water outlet device. Background Art

[0002] The climate in the northern region is cold, and the temperature often drops below zero in winter, which causes the water in the waterway pipe to freeze at low temperatures. Water freezing is a physical phenomenon, that is, water molecules will rearrange at low temperatures to form solid ice. In this process, the volume of water will expand, usually increasing by about 9%. This volume expansion will produce huge strain on the wall of the waterway pipe. For the waterway body made of plastic, its pressure bearing capacity is relatively limited. Under normal use, plastic pipes can withstand a certain internal pressure, but when ice appears inside the waterway, the pressure inside the waterway will increase sharply due to the expansion of the ice volume. This increased pressure far exceeds the normal pressure range of plastic pipes. Therefore, the main body of the plastic waterway is prone to cracking when it encounters ice. In addition, the plastic waterway body in the prior art generally lacks an effective protective structure. This means that when the internal pressure of the waterway accumulates to a certain extent, due to the lack of external support and protection, the main body of the waterway is easily cracked due to pressure, resulting in water leakage. This not only affects the normal operation of the waterway system, but also brings use risks and maintenance difficulties to users. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology, and to provide an anti-freezing cracking waterway and a water outlet device, which can effectively release the pressure generated by ice expansion, and prevent the plastic waterway body and matching parts from being damaged by ice in cold weather. At the same time, the assembly is suitable for narrow spaces and has a small working stroke.

[0004] To achieve the above objectives, each embodiment of the present invention adopts the following technical solutions but is not limited to the following solutions:

[0005] The first technical solution relates to an anti-freeze cracking water channel, comprising a water passing component, a fastener and an elastic component; the water passing component comprises a water channel body made of plastic; the water channel body is provided with a water flow channel, the water channel body is also provided with a pressure relief hole connected to the water flow channel, and the fastener is fixedly connected to the water channel body; the elastic component is placed between the fastener and the water channel body and is used to seal the pressure relief hole, and the elastic component is suitable for elastic deformation to open the pressure relief hole when the hydraulic pressure in the water channel body is greater than a threshold value.

[0006] The second technical solution is based on the first technical solution, wherein the hole wall of the pressure relief hole is provided with connecting ribs.

[0007] The third technical solution is based on the first technical solution, wherein the water-passing component further comprises at least one connecting piece, the connecting piece is provided with a threaded hole along the axial direction, and the outer edge surface of the connecting piece is provided with at least two annular protrusions along the axial direction, a gap is formed between the two annular protrusions, and the outer edge surface of the annular protrusion is toothed; the water channel body and the connecting piece inlay are integrally formed by injection molding so that the plastic enters the gap and the threaded hole is connected to the water flow channel.

[0008] The fourth technical solution is based on the third technical solution, wherein the number of the pressure relief holes is several, and the several pressure relief holes are circumferentially distributed along one of the threaded holes.

[0009] The fifth technical solution is based on the fourth technical solution, wherein the fastener is provided with a sealing groove suitable for installing an elastic member, and the elastic member is a sealing gasket made of rubber material suitable for sealing a plurality of the pressure relief holes.

[0010] The sixth technical solution is based on the fifth technical solution, wherein the fastener is threadedly connected to the water channel body.

[0011] The seventh technical solution is based on the first technical solution, wherein the water channel body includes a hot edge water channel and a cold edge water channel, the water flow component includes a thermostatic valve group and a switch water diversion valve group, the thermostatic valve group is arranged at one end of the water channel body close to the cold edge water channel, and the switch water diversion valve group is arranged at one end of the water channel body close to the hot edge water channel, the hot edge water channel is provided with a first water inlet connected to hot water, the cold edge water channel is provided with a second water inlet connected to cold water, the water channel body is provided with a first water outlet, a second water outlet and a third water outlet, the hot water from the first water inlet passes through the hot edge water channel and the cold water from the second water inlet passes through the cold edge water channel and is mixed at the thermostatic valve group to form mixed water and flows into the switch water diversion valve group, the switch water diversion valve group controls the flow direction of the mixed water and selects to connect to the first water outlet, the second water outlet or the third water outlet.

[0012] The eighth technical solution is based on the seventh technical solution, wherein the water channel body is composed of two sections of pipes, one section of the pipe is used to accommodate the constant temperature valve group, and the other section of the pipe is used to accommodate the switch water diversion valve group. The two sections of the pipe are connected by a double-channel sealing connection method and are fixedly connected by a secondary glue injection process.

[0013] The ninth technical solution is based on the eighth technical solution, wherein the first water outlet, the second water outlet and the third water outlet are configured in different water outlet modes.

[0014] The tenth technical solution is based on any one of the first to ninth technical solutions, wherein a water outlet device adopts the above-mentioned anti-freeze cracking waterway.

[0015] From the above description of the various embodiments of the present invention, it can be seen that, compared with the prior art, the various embodiments of the present invention have the following beneficial effects:

[0016] In the first technical solution and related embodiments, the anti-freeze cracking waterway uses a waterway body made of plastic material, which is not only light and durable, but also simplifies the installation and maintenance process. This plastic waterway has no heavy metal pollution, low cost, high production efficiency, and does not require post-processing. It has low thermal conductivity, effectively prevents scalding and reduces heat loss. The combination of the pressure relief hole and the elastic part can automatically release pressure by elastically deforming the elastic part to open the pressure relief hole when the hydraulic pressure in the waterway exceeds the threshold, prevent bursting, and ensure safe use. The elastic deformation of the elastic part can be completed in a small space, and the required working stroke is very small, so it is very suitable for use in environments with limited space. The fasteners stably fix the elastic parts to achieve reliable sealing and opening functions of the pressure relief hole, thereby protecting the waterway and its matching parts from freezing and cracking under extremely cold temperatures.

[0017] In the second technical solution and related embodiments, connecting ribs are installed on the hole wall of the pressure relief hole to enhance the structural strength of the pressure relief hole.

[0018] In the third technical solution and related embodiments, the inlay injection molding structure of the connector and the water channel body makes the connection between the two more secure and less prone to loosening or water leakage; on the other hand, the annular protrusion and toothed design enhance the stability and sealing of the connection and improve the overall performance of the water channel. A threaded hole is provided in the axial direction inside the connector to facilitate connection with other components.

[0019] In the fourth technical solution and related embodiments, the pressure relief holes are distributed along the circumference of the threaded holes, which can more effectively disperse the pressure in the waterway and further improve the safety and stability of the waterway.

[0020] In the fifth technical solution and related embodiments, the anti-freeze cracking waterway adopts a rubber sealing gasket and a sealing groove design on the fastener, which not only improves the sealing performance of the waterway, but also ensures the safety performance of the waterway under high pressure. The elastic member adopts a rubber sealing gasket, which is suitable for installation in the sealing groove and can fit tightly on the pressure relief hole to effectively achieve the blocking function.

[0021] In the sixth technical solution and related embodiments, a threaded connection is used between the fastener and the waterway body, which ensures a tight connection between the fastener and the waterway body, effectively preventing leakage caused by loosening or falling off, thereby improving the sealing performance of the waterway. The threaded connection has good stability and reliability, can withstand large external forces and vibrations, and ensures that the waterway can still maintain stable operation under complex environmental conditions. The use of threaded connection also facilitates the installation and removal of fasteners, making the maintenance and replacement of elastic parts simple and efficient.

[0022] In the seventh technical solution and related embodiments, constant temperature control and water flow distribution management are achieved by integrating the thermostatic valve group and the switch water distribution valve group in the water flow assembly. The setting of the thermostatic valve group allows the hot and cold water from the hot side water channel and the cold side water channel to mix inside it to form mixed water with a suitable temperature. The switch water distribution valve group effectively controls the flow direction of the mixed water. The user can choose to connect the first water outlet, the second water outlet or the third water outlet according to needs, thereby realizing flexible switching and distribution of different water use points.

[0023] In the eighth technical solution and related embodiments, the water channel body is designed as two sections of pipes, one section is used to accommodate the thermostatic valve group, and the other section is used to accommodate the switch water diversion valve group. Since the water channel body adopts the molding process of the injection mold, considering the demoulding requirements of the mold, it is unrealistic to directly manufacture the water channel body containing two cavities of the thermostatic valve and the switch water diversion valve, because there is a problem that the undercut cannot be demoulded smoothly. Therefore, a double-channel sealing connection method is adopted at the connection of the two sections of the pipe, and it is fixed by a secondary injection process. This design not only solves the problem of mold demoulding, but also ensures the stability and sealing of the connection between the two sections of the pipe. The dual protection of double-channel sealing and secondary injection effectively prevents the leakage or seepage problems that may occur at the connection of the water channel body, and improves the reliability and durability of the water channel body. In addition, the combination of this double-channel sealing connection and the secondary injection process further enhances the structural strength of the entire water channel. This enables the water channel body to withstand greater pressure and external forces, and is not easy to deform or damage, thereby ensuring the stable operation and use of the water channel body.

[0024] In the ninth technical solution and related embodiments, the first water outlet, the second water outlet and the third water outlet are configured as different water outlet modes, including bathtub water outlet, connection to a shower head or a spray gun and other water outlet modes. Specifically, the first water outlet is configured as a bathtub water outlet, which can be directly connected to the water supply system of the bathtub to provide users with a comfortable bathing experience. The second water outlet is configured as a handheld shower outlet, which can be easily connected to a handheld shower head to provide users with a flexible bathing method. The third water outlet is configured as an overhead shower outlet, providing users with another bathing option. The overhead shower outlet can cover a larger range, bringing a more comprehensive and comfortable bathing experience. By configuring three different water outlets for bathtub water outlet, handheld shower outlet and overhead shower outlet, the bathing needs of users in different scenarios are met, and the overall user experience is improved.

[0025] In the tenth technical solution and related embodiments, the water outlet device has anti-freeze cracking performance due to the anti-freeze cracking water channel design. In an extremely low temperature environment, the water channel body can effectively prevent the bursting problem caused by ice, ensuring the stability and safety of the device. The water outlet device uses a plastic water channel body that is not only light and durable, but also has low thermal conductivity, effectively preventing scalding and reducing heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is an explosion diagram of the anti-freeze cracking waterway of the embodiment;

[0028] Figure 2 It is the assembly diagram of the anti-freeze cracking waterway of the embodiment;

[0029] Figure 3 This is a schematic diagram of the water outlet of the anti-freeze cracking waterway in the embodiment;

[0030] Figure 4 for Figure 3 AA section view;

[0031] Figure 5 for Figure 4 Enlarged view of point B - schematic diagram of elastic member blocking the pressure relief hole;

[0032] Figure 6 for Figure 4 Enlarged view of point B - schematic diagram of the elastic member elastically deforming to open the pressure relief hole;

[0033] Figure 7 is a schematic diagram of a fastener and an elastic member;

[0034] Figure 8 A schematic diagram of the connector.

[0035] Description of main reference numerals:

[0036] Water channel body 1; thermostatic valve group 2; switch water distribution valve group 3; fastener 4; elastic member 5; connector 6; hot water 7; cold water 8; mixed water 9; pressure relief hole 10; hot side water channel 11; cold side water channel 12; first water inlet 13; second water inlet 14; first water outlet 15; second water outlet 16; third water outlet 17; double-channel seal 18; secondary glue injection 19; thermostatic valve 21; thermostatic valve gland 22; switch water distribution valve 31; switch water distribution valve gland 32; sealing groove 41; annular protrusion 61; interval 62; threaded hole 63. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0038] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0039] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0040] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0041] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0042] See also Figures 1 to 8 ,like Figure 1 As shown, an anti-freezing and cracking water channel includes a water passing component, a fastener 4 and an elastic member 5.

[0043] Water-passing components, such as Figures 1 to 3 and Figure 8 As shown, it includes a water channel body 1, a connecting piece 6, a thermostatic valve group 2 and a switch water distribution valve group 3.

[0044] Waterway body 1, such as Figures 1 to 3As shown, it is made of plastic material, and the water channel body 1 is provided with a water flow channel, such as Figure 4 As shown, the water channel body 1 includes a hot side water channel 11 and a cold side water channel 12. The hot side water channel 11 is provided with a first water inlet 13 connected to the hot water 7, and the cold side water channel 12 is provided with a second water inlet 14 connected to the cold water 8. Specifically, the first water inlet 13 is located in the hot side water channel 11, and the second water inlet 14 is located in the cold side water channel 12. Figure 3 As shown, the water channel body 1 is provided with a first water outlet 15, a second water outlet 16 and a third water outlet 17. The first water outlet 15, the second water outlet 16 and the third water outlet 17 are configured as different water outlet modes, including bathtub water outlet, connection shower or spray gun and other water outlet modes. In this embodiment, the first water outlet 15 is configured as bathtub water outlet, the second water outlet 16 is configured as handheld water outlet, and the third water outlet 17 is configured as top spray water outlet. In this embodiment, the first water outlet 15 is configured as bathtub water outlet, which can be directly connected to the water supply system of the bathtub, providing users with a comfortable bathing experience. The second water outlet 16 is configured as a handheld shower outlet, which can be conveniently connected to a handheld shower, providing users with a flexible bathing method. The third water outlet 17 is configured as a top spray shower outlet, providing users with another bathing option. The top spray shower outlet can cover a larger range, bringing a more comprehensive and comfortable bathing experience. By configuring three different water outlets for the bathtub, hand-held showerhead and overhead showerhead, the bathing needs of users in different scenarios are met, and the overall user experience is improved. The water channel body 1 is provided with a pressure relief hole 10 connected to the water flow channel. Its main purpose is that in severe cold weather, when water freezes into ice, the volume expansion may generate strain on the pipe wall of the water channel body 1, and the pressure relief hole 10 can effectively release this strain, thereby protecting the structural safety of the water channel body 1. The hole wall of the pressure relief hole 10 is equipped with connecting ribs to strengthen the structural strength of the pressure relief hole 10. The number of pressure relief holes 10 is several.

[0045] Connector 6, such as Figure 8 As shown, there is at least one, and the outer edge surface of the connector 6 is provided with at least two annular protrusions 61 along the axial direction, and a gap 62 is formed between the two annular protrusions 61, and the outer edge surface of the annular protrusion 61 is tooth-shaped; the waterway body 1 and the connector 6 are integrally formed by injection molding, so that the plastic enters the gap 62, and the threaded hole 63 is connected to the water flow channel. Specifically, the connector 6 is used to connect plastic pipes with other metal fittings, such as the connection of the plug of the waterway body 1, the connection of the pipes of the water inlet and outlet, the connection of the pressure relief hole, etc. In this embodiment, the integrally formed structure of the connector 6 and the waterway body 1 is made of an inlay injection molding, so that the connection between the two is more secure and less prone to loosening or leakage; on the other hand, the annular protrusion 61 and the tooth-shaped design enhance the stability and sealing of the connection, and improve the overall performance of the waterway. A threaded hole 63 is provided inside the connector 6 along the axial direction to facilitate the connection with other components.

[0046] Thermostatic valve group 2, such as Figures 1 to 4 As shown, it is installed at one end of the water channel body 1 close to the cold side water channel 12. The thermostatic valve group 2 is a device for controlling the temperature of a fluid. The thermostatic valve group 2 can easily increase and decrease the outlet water temperature by rotating the adjustment knob clockwise and counterclockwise to meet the user's water demand in different occasions and seasons. Specifically, the thermostatic valve group 2 includes a thermostatic valve 21 and a thermostatic valve gland 22. The thermostatic valve gland 22 can effectively ensure the stability and sealing of the thermostatic valve 21. The thermostatic valve group 2 is a prior art and will not be described in detail. In this embodiment, the thermostatic valve group 2 is set to a constant temperature water outlet state of 38°C by default, providing the user with a comfortable initial water temperature. If the user wants to lower the outlet water temperature, the adjustment knob on the valve group can be rotated clockwise. At this time, the thermostatic valve group 2 will reduce the flow of hot water 7 and increase the mixing ratio of cold water 8 to achieve a gradual decrease in the outlet water temperature. On the contrary, if the user wishes to increase the outlet water temperature, he only needs to rotate the adjustment knob counterclockwise, and the thermostatic valve group 2 will increase the flow of hot water 7 and reduce the mixing ratio of cold water 8, so that the outlet water temperature gradually rises.

[0047] The switch water diverter valve group 3 is installed at one end of the water channel body 1 close to the hot edge water channel 11. Specifically, the switch water diverter valve group 3 includes a switch water diverter valve 31 and a switch water diverter valve pressure cover 32. The switch water diverter valve pressure cover 32 can effectively ensure the stability and sealing of the switch water diverter valve 31. The function of the switch water diverter valve group 3 is mainly reflected in controlling the flow direction and distribution of the fluid. It can distribute the fluid from one inlet pipe to multiple outlet pipes. In the constant temperature water channel system, the switch water diverter valve group 3 can not only control the mixed constant temperature water to flow to different water outlets, such as bathtub water outlet, handheld water outlet or top spray water outlet, but also adjust the water volume distribution of each water outlet according to needs. The switch water diverter valve group 3 is a prior art and will not be described in detail.

[0048] Specifically, the hot water 7 from the first water inlet 13 passes through the hot side water channel 11 and the cold water 8 from the second water inlet 14 passes through the cold side water channel 12 and mixes at the thermostatic valve group 2 to form mixed water 9 and flows into the switch water diversion valve group 3. The switch water diversion valve group 3 controls the flow direction of the mixed water 9 and selects to connect to the first water outlet 15, the second water outlet 16 or the third water outlet 17. This embodiment realizes constant temperature control and water flow distribution management by integrating the thermostatic valve group 2 and the switch water diversion valve group 3 in the water flow assembly. The setting of the thermostatic valve group 2 enables the hot and cold water 7 from the hot side water channel 11 and the cold side water channel 12 to mix inside it to form mixed water 9 of suitable temperature. The switch water diversion valve group 3 effectively controls the flow direction of the mixed water 9. The user can choose to connect to the first water outlet 15, the second water outlet 16 or the third water outlet 17 as needed, thereby realizing flexible switching and distribution of different water use points.

[0049] The waterway body 1 is composed of two sections of pipes, one of which is used to accommodate the thermostatic valve group 2, and the other is used to accommodate the switch water diversion valve group 3. The two sections of the pipes are connected by a double-channel seal 18 connection method, and are fixedly connected by a secondary glue injection 19 process. In this embodiment, since the waterway body 1 adopts the molding process of the injection mold, considering the demoulding requirements of the mold, it is unrealistic to directly manufacture the waterway body including the two cavities of the thermostatic valve 21 and the switch water diversion valve 31, because there is a problem that the undercut cannot be demoulded smoothly. Therefore, a double-channel seal 18 connection method is adopted at the connection of the two sections of the pipe, and it is fixed by a secondary glue injection 19 process. This design not only solves the problem of mold demoulding, but also ensures the stability and sealing of the connection between the two sections of the pipe. The dual protection of the double-channel seal 18 and the secondary glue injection 19 effectively prevents the leakage or seepage problems that may occur at the connection of the waterway body 1, and improves the reliability and durability of the waterway body 1. In addition, the combination of this double-channel seal 18 connection and the secondary glue injection 19 process further enhances the structural strength of the entire waterway body 1. This enables the water channel body 1 to withstand greater pressure and external force, and is less likely to be deformed or damaged, thereby ensuring the stable operation and use of the water channel body 1.

[0050] Fastener 4, such as Figures 5 to 7 As shown, it is fixed to the waterway body 1. Specifically, the fastener 4 is threadedly connected to the waterway body 1 through one of the connecting pieces 6. In this embodiment, a hexagon socket is installed on the top of the fastener 4, and it can be quickly installed and removed by a matching hexagon socket wrench. The design of the hexagon socket enables the fastener 4 to provide better torque transmission when tightening, thereby ensuring the tight connection between the fastener 4 and the waterway body 1. A threaded connection is adopted between the fastener 4 and the waterway body 1, ensuring the tight connection between the fastener 4 and the waterway body 1, effectively preventing leakage problems caused by loosening or falling off, thereby improving the sealing performance of the waterway. The threaded connection has good stability and reliability, can withstand large external forces and vibrations, and ensures that the waterway can still maintain stable operation under complex environmental conditions. The threaded connection also facilitates the installation and removal of the fastener 4, making the maintenance and replacement of the elastic member 5 simple and efficient. The fastener 4 is provided with a sealing groove 41, which is circular in shape. The fastener 4 is provided with a sealing groove 41 , and the sealing groove 41 is arranged along the circumferential direction on the fastener 4 close to the top wall of the water channel body 1 .

[0051] The elastic member 5 is suitable for being installed in the sealing groove 41 of the fastener 4. The elastic member 5 is placed between the fastener 4 and the waterway body 1 and is used to block the pressure relief hole 10. Specifically, a plurality of pressure relief holes 10 are circumferentially distributed along the threaded hole 63 of the fastener 4. The design of the plurality of pressure relief holes 10 can more effectively disperse the pressure in the waterway, further improving the safety and stability of the waterway. The elastic member 5 is a sealing gasket made of rubber material and is suitable for blocking a plurality of pressure relief holes 10. The elastic member 5 is suitable for elastic deformation to open the pressure relief hole 10 when the hydraulic pressure in the waterway body 1 is greater than the threshold. In this embodiment, the anti-freeze cracking waterway is designed by adopting a sealing gasket made of rubber material and a sealing groove 41 on the fastener 4, which not only improves the sealing performance of the waterway, but also ensures the safety performance of the waterway under high pressure. The elastic member 5 adopts a sealing gasket made of rubber material, which is suitable for being installed in the sealing groove 41 and can fit tightly on the pressure relief hole 10 to effectively realize the blocking function. In this embodiment, the design threshold of the elastic member 5 is to meet the anti-explosion water pressure ≤3.0MPa.

[0052] The following is a detailed description of the working principle of the elastic member 5:

[0053] like Figure 5 As shown, under normal conditions, when the hydraulic pressure in the waterway body 1 is maintained below a set threshold, the elastic member 5 exerts its blocking effect, tightly closing the pressure relief hole 10 to ensure the normal operation of the waterway system.

[0054] However, at extremely cold temperatures, the waterway body 1 faces challenges caused by the expansion pressure of ice. Figure 6 As shown, when the hydraulic pressure in the water channel body 1 exceeds the set threshold due to the expansion of ice, the elastic member 5 plays a key role. It gradually opens the pressure relief hole 10 through its own elastic deformation, thereby releasing the expansion pressure of ice and preventing the water channel body 1 and its matching parts from being damaged due to excessive pressure.

[0055] As the temperature rises, the ice gradually melts, and the hydraulic pressure in the waterway body 1 decreases accordingly. Figure 5 As shown, when the hydraulic pressure returns to below the set threshold again, the elastic member 5 returns to its initial sealing state and re-blocks the pressure relief hole 10 to ensure the safe and stable operation of the waterway system.

[0056] In this embodiment, the anti-freeze cracking waterway adopts a waterway body 1 made of plastic material, which is not only light and durable, but also simplifies the installation and maintenance process. This plastic waterway has no heavy metal pollution, low cost, high production efficiency, and does not require post-processing. It has low thermal conductivity, effectively prevents scalding and reduces heat loss. The combination of the pressure relief hole 10 and the elastic part 5 can elastically deform the elastic part 5 to open the pressure relief hole 10 to automatically release pressure when the hydraulic pressure in the waterway exceeds the threshold, prevent bursting, and ensure safe use. The elastic deformation of the elastic part 5 can be completed in a small space, and the required working stroke is very small, so it is very suitable for use in environments with limited space. The fastener 4 stably fixes the elastic part 5 to achieve the reliable sealing and opening function of the pressure relief hole 10, thereby protecting the waterway and its matching parts from freezing and cracking under extremely cold temperatures.

[0057] A water outlet device adopts the above-mentioned anti-freeze cracking water channel. The water outlet device has anti-freeze cracking performance due to the anti-freeze cracking water channel design. In an extremely low temperature environment, the water channel body 1 can effectively prevent the bursting problem caused by ice, ensuring the stability and safety of the device. The water outlet device adopts a plastic water channel body 1 that is not only light and durable, but also has low thermal conductivity, effectively preventing scalding and reducing heat loss.

[0058] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. A waterway for preventing freezing and cracking, characterized in that: The invention comprises a water-passing component, a fastener (4) and an elastic component (5); the water-passing component comprises a water channel body (1) made of plastic material; the water channel body (1) is provided with a water flow channel, the water channel body (1) is also provided with a pressure relief hole (10) connected to the water flow channel, the fastener (4) is fixedly connected to the water channel body (1); the elastic component (5) is arranged between the fastener (4) and the water channel body (1) and is used to block the pressure relief hole (10), and the elastic component (5) is suitable for elastically deforming to open the pressure relief hole (10) when the hydraulic pressure in the water channel body (1) is greater than a threshold value.

2. The anti-freeze cracking waterway according to claim 1, characterized in that: The hole wall of the pressure relief hole (10) is provided with connecting ribs.

3. The anti-freeze cracking waterway according to claim 1, characterized in that: The water-passing assembly further comprises at least one connecting piece (6), the connecting piece (6) being provided with a threaded hole (63) along the axial direction, the outer edge surface of the connecting piece (6) being provided with at least two annular protrusions (61) along the axial direction, a gap (62) being formed between the two annular protrusions (61), and the outer edge surface of the annular protrusion (61) being tooth-shaped; the water channel body (1) and the connecting piece (6) are integrally formed by injection molding so that plastic enters the gap (62) and the threaded hole (63) is connected to the water flow channel.

4. The anti-freeze cracking waterway according to claim 3, characterized in that: The number of the pressure relief holes (10) is a plurality, and the plurality of pressure relief holes (10) are distributed along the circumference of one of the threaded holes (63).

5. The anti-freeze cracking waterway according to claim 4, characterized in that: The fastener (4) is provided with a sealing groove (41) suitable for installing the elastic member (5); the elastic member (5) is a sealing gasket made of rubber material suitable for sealing the plurality of pressure relief holes (10).

6. The anti-freeze cracking waterway according to claim 5, characterized in that: The fastener (4) is threadedly connected to the water channel body (1).

7. The anti-freeze cracking waterway according to claim 1, characterized in that: The water channel body (1) comprises a hot side water channel (11) and a cold side water channel (12); the water flow assembly comprises a thermostatic valve group (2) and a switch water diversion valve group (3); the thermostatic valve group (2) is installed at one end of the water channel body (1) close to the cold side water channel (12); the switch water diversion valve group (3) is installed at one end of the water channel body (1) close to the hot side water channel (11); the hot side water channel (11) is provided with a first water inlet (13) connected to hot water (7); the cold side water channel (12) is provided with a second water inlet (14) connected to cold water (8); the water channel body ( 1) A first water outlet (15), a second water outlet (16) and a third water outlet (17) are provided. Hot water (7) from the first water inlet (13) passes through the hot side water channel (11) and cold water (8) from the second water inlet (14) passes through the cold side water channel (12) and are mixed at the thermostatic valve group (2) to form mixed water (9) which flows into the switch water diversion valve group (3). The switch water diversion valve group (3) controls the flow direction of the mixed water (9) and selects to connect to the first water outlet (15), the second water outlet (16) or the third water outlet (17).

8. The anti-freeze cracking waterway according to claim 7, characterized in that: The water channel body (1) is composed of two sections of pipes, one section of the pipe is used to accommodate the thermostatic valve group (2), and the other section of the pipe is used to accommodate the switch water distribution valve group (3). The two sections of the pipes are connected by a double-channel sealing (18) connection method and are fixedly connected by a secondary glue injection (19) process.

9. The anti-freeze cracking waterway according to claim 8, characterized in that: The first water outlet (15), the second water outlet (16) and the third water outlet (17) are configured in different water outlet modes.

10. A water outlet device, characterized in that: An anti-freeze cracking water channel as described in any one of claims 1 to 9 is used.

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