A mixed temperature control valve for pre-arranging hot water pipeline cold water

Abstract

The utility model discloses a kind of pre-discharge hot water pipeline cold water's mixed temperature control valve, including water mixing valve shell, water mixing valve shell axial two ends are provided by warm water passage and the water mixing valve core being communicated with warm water passage, water mixing valve shell radial side is equipped with the water supply shell being constituted by waterway shell and switch valve shell, waterway shell radial side is provided with hot water passage and cold water passage, cold water passage and hot water passage are respectively communicated and set in the cold water straight-through waterway and hot water straight-through waterway of waterway shell, cold water straight-through waterway and hot water straight-through waterway are communicated with warm water passage by water mixing valve core controlled, water supply shell is equipped with a bifurcation waterway being communicated with hot water straight-through waterway and the cold water outlet and the link waterway being communicated with bifurcation waterway, waterway shell is equipped with a pre-discharge passage being communicated with link waterway, a switch valve core is installed in switch valve shell, the utility model can pre-discharge cooled cold water in hot water passage, ensure that the hot water with certain temperature enters water mixing valve.

Description

Technical Field

[0001] This utility model relates to a temperature mixing control valve for pre-draining cold water accumulation in hot water pipelines. Background Technology

[0002] There are three types of toilet seats (commonly known as toilet sitz bath seats) that are fixedly installed on ceramic toilets for local washing and cleaning of the human body after defecation: (1) Electronic toilet seat, which uses an electric heater in the back shell of the seat to heat the water for washing, and then pumps it to the buttocks and genitals spray rod, which extends to wash the human body with warm water. (2) Electric buttocks and genitals toilet seat, which directly uses the water pressure of the tap water to actuate the spray rod to spray water for cold water washing and cleaning of the human body. (3) There is also a type that connects to the water tank of a water heater through a water pipe, and connects to the tap water. The cold water and hot water are mixed through a mixing valve to adjust the water temperature, and then warm water is supplied to the buttocks and genitals spray rod for warm water washing and cleaning of the human body.

[0003] For the aforementioned system that uses a bathroom water heater tank to supply hot water to a bidet seat, when the bidet seat stops working, the hot water stored in the pipes connected to the water heater tank will cool down. When the user needs to use the bidet after defecation, if the cold water in the hot water pipes is not drained beforehand, the water entering the mixing valve will be cold for a period of time. That is, the water coming out of the mixing valve will be cold water instead of warm water. If the user uses ice-cold water to wash the body after defecation, the experience will be unpleasant and the cleaning effect will be poor. Utility Model Content

[0004] This invention provides a temperature mixing control valve for pre-draining cold water accumulation in hot water pipelines, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows: A thermostatic mixing valve for pre-draining cold water accumulation in hot water pipes includes a mixing valve housing, with one axial end of the mixing valve housing configured as a warm water channel, and a mixing valve core configured at the other axial end of the mixing valve housing, which is connected to the warm water channel. The radial side of the mixing valve housing is integrally formed with a water supply housing consisting of a water circuit housing and a switch valve housing. The radial side of the water circuit housing is provided with a hot water channel and a cold water channel. The cold water channel is connected to a cold water direct channel provided in the water circuit housing, and the hot water channel is connected to a hot water direct channel provided in the water circuit housing. The cold water direct channel and the hot water direct channel are connected to the warm water channel through the mixing valve core. The water supply housing has a branch water channel connected to the hot water direct channel, and a cooling water channel and a connecting water channel that pass axially from the switch valve housing through the water circuit housing. The branch water channel is connected to the cooling water channel. The water circuit housing has a pre-drainage channel that is connected to the cooling water channel via the connecting water channel. The pre-drainage channel can discharge the cooled water accumulated in the hot water channel. The switch valve housing is equipped with a switch valve core for controlling the connection or disconnection of the branch water channel and the cooling water channel.

[0006] As a further improvement, the switch valve core is a push-button switch valve core, which is equipped with a button. Pressing the button connects the branch water channel and the cold water channel. The cooled cold water in the hot water channel is discharged sequentially through the hot water direct channel, the branch water channel, the cold water channel, the connecting water channel and the pre-drain channel. Pressing the button again resets the button, causing the switch valve core to cut off the branch water channel and the cold water channel, thus ending the cold water section in the pre-drain hot water channel.

[0007] As a further improvement, the mixing valve core is a knob-type mixing valve core, which is equipped with a knob. After the pre-draining of cold water is completed, the knob is turned to open the cold water direct passage and the hot water direct passage, so that the cold water and hot water are mixed to form warm water which is discharged from the warm water passage.

[0008] As a further improvement, the branch channel is arranged axially parallel to the mixing valve core, and the pre-drainage channel is arranged axially parallel to the warm water channel.

[0009] The beneficial effects of this utility model are: (1) Drain the cooled cold water in the hot water channel between the water heater and the cover plate warm water valve in advance to ensure that the water entering the mixing valve is hot water from the water heater tank with a certain temperature before the body is rinsed clean after defecation. Ensure that the hot water and water enter the mixing valve to be mixed and adjusted to a certain temperature of warm water for use by the buttocks and genitals wash spray rod.

[0010] (2) This utility model has a simple structure and is easy to operate. It pre-drains cold water and uses warm water to wash the buttocks and genitals, which can achieve a better washing experience for the human private parts. Attached Figure Description

[0011] Figure 1 This is a three-dimensional assembly drawing of the mixing temperature control valve for pre-draining cold water accumulation in hot water pipelines according to this utility model.

[0012] Figure 2 This is a schematic diagram of the button assembly structure of the mixing valve for pre-draining cold water accumulation in hot water pipelines according to this utility model.

[0013] Figure 3 This is a three-dimensional structural diagram showing the rotation direction of the knob and the pressing direction of the button of the mixing control valve for pre-draining cold water accumulation in hot water pipelines according to this utility model.

[0014] Figure 4 This is a partial structural cross-sectional view of the mixing temperature control valve for pre-draining cold water accumulation in hot water pipelines according to this utility model.

[0015] Figure 5 This is a partial structural cross-sectional view of the mixing control valve for pre-draining cold water accumulation in the hot water pipeline of this utility model, when the button is pressed, showing the hot water channel discharging cooling water into the pre-draining channel.

[0016] Figure 6 This is a partial structural cross-sectional view of the mixing control valve for pre-draining cold water accumulation in hot water pipelines, showing the hot water channel discharging hot water into the warm water channel when the knob is turned.

[0017] Figure 7 This is a three-dimensional assembly drawing of the mixing temperature control valve for pre-draining cold water accumulation in hot water pipes, installed on the bottom plate of the toilet's rear shell.

[0018] The attached diagram is labeled as follows: 10. Mixing valve housing; 11. Cold water passage; 111. Cold water direct passage; 12. Hot water passage; 121. Hot water direct passage; 122. Branch passage; 123. Cold water discharge passage; 13. Warm water passage; 14. Pre-drainage passage; 141. Connecting passage; 20. Mixing valve core; 21. Knob; 30. Water supply housing; 31. Water circuit housing; 32. Switch valve housing; 40. Switch valve core; 41. Button assembly; 50. Rear shell bottom plate; 60. Spray gun. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Reference Figures 1-3 As shown, a thermostatic mixing control valve for pre-draining cold water accumulation in hot water pipes includes a mixing valve housing 10, one axial end of the mixing valve housing 10 is configured as a warm water channel 13, and the other axial end of the mixing valve housing 10 is configured with a mixing valve core 20 connected to the warm water channel 13. The mixing valve housing 10 has a water supply housing 30 integrally formed on its radial side, consisting of a water circuit housing 31 and a switch valve housing 32. The water circuit housing 31 has a hot water channel 12 and a cold water channel 11 on its radial side. The cold water channel 11 connects to a cold water direct channel 111 located within the water circuit housing 31, and the hot water channel 12 connects to a hot water direct channel 121 located within the water circuit housing 31. The cold water direct channel 111 and the hot water direct channel 121 are connected to a warm water channel 13 via the mixing valve core 20. Figure 4As shown, the water supply housing 30 is provided with a branch water channel 122 connected to the hot water direct channel 121, and a cooling water channel 123 and a connecting water channel 141 that pass axially from the switch valve housing 32 through the water circuit housing 31. The branch water channel 122 is connected to the cooling water channel 123. The water circuit housing 31 is provided with a pre-drainage channel 14 that is connected to the cooling water channel 123 via the connecting water channel 141. The pre-drainage channel 14 can discharge the cooled water accumulated in the hot water channel 12. A switch valve core 40 is installed in the switch valve housing 32 to control the connection or disconnection of the branch water channel 122 and the cooling water channel 123.

[0021] This utility model can pre-drain the cooled cold water in the hot water channel 12 between the water heater and the cover plate warm water valve, ensuring that the water entering the mixing valve is hot water from the water heater tank with a certain temperature before the person washes themselves after defecation. This ensures that the hot water and water entering the mixing valve are mixed and adjusted to a certain temperature of warm water for use by the buttock washing spray bar.

[0022] The structure of each component of this utility model will be described below.

[0023] Reference Figures 4-5 As shown, the switch valve core 40 is a push-button type switch valve core 40. A button 41 is provided on the switch valve core 40. The working principle of the button 41 is similar to that of a ballpoint pen. This technology is existing technology and will not be described in detail here. Pressing the button 41 connects the branch water channel 122 and the cold water channel 123. The cooled cold water in the hot water channel 12 is discharged sequentially through the hot water direct channel 121, the branch water channel 122, the cold water channel 123, the connecting water channel 141, and the pre-drainage channel 14. Pressing the button 41 again resets the button 41, causing the switch valve core 40 to cut off the branch water channel 122 and the cold water channel 123. The cold water section in the pre-drainage hot water channel 12 ends. Users can start or stop the pre-drainage function by simply pressing the button, without complicated operation or tools, which improves the user experience of the product.

[0024] Reference Figures 3-4 , Figure 6As shown, the mixing valve core 20 is a knob-type mixing valve core 20. A knob 21 is provided on the mixing valve core 20. In one embodiment, a moving plate and a fixed plate are provided inside the mixing valve core 20. The fixed plate is fixed inside the mixing valve core 20, and the moving plate rotates with the knob 21. The fixed plate has two inlet holes and one outlet hole. The two inlet holes are respectively connected to the cold water channel 11 and the hot water channel 12, and the outlet hole is connected to the warm water channel 13. The moving plate also has corresponding channels. When the knob 21 is rotated, the holes on the moving plate will overlap with the two inlet holes on the fixed plate to varying degrees. The angle and direction of rotation of knob 21 determine the size of the overlapping area between the moving plate hole and the cold and hot water inlet holes, thereby precisely controlling the ratio of cold and hot water inlet. The specific structure of the mixing valve core 20 is existing technology and therefore not shown in the figure. After the pre-draining of cold water is completed, the knob 21 is rotated, and the mixing valve core 20 opens the cold water direct passage 111 and the hot water direct passage 121, so that the cold water and hot water are mixed to form warm water, which is discharged from the warm water passage 13. The knob-type mixing valve core 20 is a temperature control method familiar to users. The ratio of cold and hot water can be easily adjusted by rotating the knob. The operation is simple and in line with user habits.

[0025] The branch water channel 122 is axially parallel to the mixing valve core 20, and the pre-drain channel 14 is axially parallel to the warm water channel 13. The parallel water channel design makes the internal structure more compact, reduces the valve body volume, and facilitates installation in narrow spaces such as the back shell of the toilet.

[0026] The working principle and specific implementation steps of this utility model are explained in detail below.

[0027] Reference Figures 1-4 , Figure 7As shown, the mixing control valve for pre-draining cold water accumulation in the hot water pipeline of this utility model is installed in the rear shell bottom plate 50 of the toilet seat. The cold water channel 11 is connected to the tap water, the hot water channel 12 is connected to the water tank of the bathroom water heater, and the warm water channel 13 is connected to the spray gun 60. Pressing the button 41 of the push-button switch valve core 40 connects the branch water channel 122 and the cold water channel 123. The cold water cooled in the hot water pipe is discharged through the hot water channel 12, the hot water direct channel 121, the branch water channel 122, the cold water channel 123, the connecting water channel 141, and the pre-drain channel 14. Press button 41 again to reset it, causing the key-type switch valve core 40 to cut off the branch water channel 122 and the cold water channel 123, ending the pre-drainage of the cold water section in the hot water pipe. Turn the knob 21 to open the cold water direct channel 111 and the hot water direct channel 121, allowing the cold and hot water to mix and form warm water, which is discharged from the warm water channel 13 and sprayed out by the spray gun 60 to rinse and clean the body part with warm water. By controlling the branch water channel 122 and the cold water channel 123 through the key-type switch valve core 40, the cold water that has been cooled in the hot water pipe can be pre-drained, allowing the hot water in the water tank at a certain temperature to enter the mixing valve and mix with the tap water (cold water) in a certain ratio to adjust to a certain temperature of warm water, providing warm water for rinsing the buttocks and feminine wash spray bar on the toilet seat.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermostatic mixing control valve for pre-draining cold water accumulation in a hot water pipeline, comprising a mixing valve housing (10), one axial end of the mixing valve housing (10) being configured as a warm water channel (13), and the other axial end of the mixing valve housing (10) being configured with a mixing valve core (20) communicating with the warm water channel (13), characterized in that, The mixing valve housing (10) is integrally formed on the radial side with a water supply housing (30) consisting of a water circuit housing (31) and a switch valve housing (32). A hot water channel (12) and a cold water channel (11) are provided on the radial side of the water circuit housing (31). The cold water channel (11) is connected to the cold water direct channel (111) provided in the water circuit housing (31). The hot water channel (12) is connected to the hot water direct channel (121) provided in the water circuit housing (31). The cold water direct channel (111) and the hot water direct channel (121) are connected to the warm water channel (13) through the mixing valve core (20). The water supply housing (30) is provided with a branch water channel (122) connected to the hot water direct channel (121), and a cold water channel (123) and a connecting water channel (141) that pass through the water circuit housing (31) axially from the switch valve housing (32). The branch water channel (122) is connected to the cold water channel (123). The water circuit housing (31) is provided with a pre-drainage channel (14) that is connected to the cold water channel (123) via the connecting water channel (141). The pre-drainage channel (14) can discharge the cold water accumulated in the hot water channel (12) after cooling. The switch valve housing (32) is equipped with a switch valve core (40) for controlling the connection or disconnection of the branch water channel (122) and the cold water channel (123).

2. The thermostatic mixing control valve for pre-draining cold water accumulation in hot water pipelines according to claim 1, characterized in that, The switch valve core (40) is a push-button switch valve core (40). A button (41) is provided on the switch valve core (40). Pressing the button (41) connects the branch water channel (122) and the cold water channel (123). The cooled cold water in the hot water channel (12) is discharged sequentially through the hot water direct channel (121), the branch water channel (122), the cold water channel (123), the connecting water channel (141), and the pre-discharge channel (14). Pressing the button (41) again resets the button (41) so that the switch valve core (40) cuts off the branch water channel (122) and the cold water channel (123), and the cold water section in the pre-discharge hot water channel (12) ends.

3. The thermostatic mixing control valve for pre-draining cold water accumulation in hot water pipelines according to claim 1, characterized in that, The mixing valve core (20) is a knob-type mixing valve core (20). A knob (21) is provided on the mixing valve core (20). After the pre-draining of cold water is completed, the knob (21) is turned, and the mixing valve core (20) opens the cold water direct passage (111) and the hot water direct passage (121), so that the cold water and hot water are mixed to form warm water, which is discharged from the warm water passage (13).

4. The thermostatic mixing control valve for pre-draining cold water accumulation in hot water pipelines according to claim 1, characterized in that, The branch channel (122) is axially parallel to the mixing valve core (20), and the pre-drainage channel (14) is axially parallel to the warm water channel (13).

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