Shower device with cleaning and draining function

Abstract

The utility model discloses a shower device with cleaning and sewage discharge functions, which comprises a shower body, a top spray shower and a hand spray shower, the shower body is connected with cold and hot water inlet pipes, a water distribution valve and a constant temperature regulating valve are arranged in the shower body, a water distribution valve cavity and a water mixing valve cavity for respectively mounting the water distribution valve and the constant temperature regulating valve are arranged in the shower body, a control valve chamber is arranged in the shower body, a cold water inlet, a cold water outlet, a hot water inlet, a hot water outlet and a drain outlet are arranged in the control valve chamber, a control valve is arranged in the control valve chamber, a valve core bottom plate, a fixed valve plate and a rotary valve plate are arranged in the control valve, the control valve controls the synchronous opening or closing of cold water channels and hot water channels in the shower body through the cold water inlet, the cold water outlet, the hot water inlet and the hot water outlet, the cold water outlet and the hot water outlet are dynamically communicated with the drain outlet to drain water when the cold water channels and the hot water channels are closed, and backwashing is performed on dirt on the control valve waterway and a filter screen when draining water, so that the control valve has a backwashing self-cleaning function.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, and in particular to a shower device with cleaning and sewage discharge functions. Background Technology

[0002] Existing shower units generally include a thermostatic valve and control buttons or knobs for switching between overhead and hand showerheads. These thermostatic valves maintain a constant water temperature, providing a comfortable showering experience. However, after a period of use, scale easily accumulates on the thermostatic valve and its internal water channels. When the scale buildup reaches a certain thickness, it can cause the temperature-sensing components in the thermostatic valve to malfunction, making it difficult for the valve to maintain a constant water temperature. This can lead to fluctuating water temperatures, affecting the user experience.

[0003] The applicant has previously developed a thermostatic valve core that can automatically clean scale. A rotating impeller is installed outside the temperature sensing rod of the thermostatic valve core. When in use, the water flow drives the rotating impeller to rotate, and the rotating blades scrape off the scale on the temperature sensing rod, thereby realizing the automatic cleaning of the temperature sensing rod of the thermostatic valve core.

[0004] To better install and utilize this thermostatic valve core that can automatically clean limescale, improvements need to be made to the existing shower body and its internal water circuit structure to achieve a better automatic cleaning effect. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a shower device with a cleaning and drainage function. The main structure of the shower is specially designed to facilitate the installation of a thermostatic valve core for automatic scale cleaning and a control valve for automatic drainage. It can automatically drain water when the valve is closed, and during drainage, it can backwash the dirt in the control valve water path and filter screen, thus possessing a backwashing self-cleaning function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shower device with cleaning and drainage functions includes a shower body, an overhead shower head, and a hand shower head. The shower body is connected to cold and hot water inlet pipes. One end of the shower body is equipped with a water distribution valve, and the other end is equipped with a thermostatic regulating valve. The shower body has a water distribution valve chamber and a mixing valve chamber, which are respectively installed with the water distribution valve and the thermostatic regulating valve. The shower body also has a control valve chamber, which has a cold water inlet, a cold water outlet, a hot water inlet, a hot water outlet, and a drain outlet. The control valve in the control valve chamber is equipped with a control valve that controls the synchronous opening or closing of the cold water channel and the hot water channel in the shower body through the cold water inlet, cold water outlet, hot water inlet, and hot water outlet. When the cold water channel and the hot water channel are closed, the cold water outlet and the hot water outlet are dynamically connected to the drain outlet for drainage.

[0008] Furthermore, the cold water inlet is connected to the cold water inlet pipe through the cold water channel, and the cold water outlet is connected to the cold water inlet of the mixing valve chamber; the hot water inlet is connected to the hot water inlet pipe through the hot water channel, and the hot water outlet is connected to the hot water inlet of the mixing valve chamber; the output port of the mixing valve chamber is connected to the water distribution valve chamber through the warm water path; the water distribution valve is used to switch the water supply path connecting the overhead shower head and the hand shower head.

[0009] Furthermore, the control valve includes a valve core base plate, a fixed valve plate, and a rotating valve plate. The valve core base plate has a cold water inlet, a cold water outlet, a hot water inlet, and a hot water outlet. The fixed valve plate has a connection hole one, a connection hole two, a connection hole three, and a connection hole four, respectively, corresponding to the cold water inlet, cold water outlet, hot water inlet, and hot water outlet. The fixed valve plate also has two drainage grooves. The rotating valve plate has a first connecting cavity and a second connecting cavity. The rotating valve plate rotates coaxially relative to the fixed valve plate so that the first connecting cavity and the second connecting cavity connect the connection hole one to the connection hole two, and the connection hole three to the connection hole four, or connect the connection hole two to the drainage groove and the connection hole four to the drainage groove.

[0010] Furthermore, the two drainage channels are respectively located between the second and third connecting holes and the first and fourth connecting holes, and the first and second connecting cavities are symmetrically arranged.

[0011] Furthermore, the rotary valve plate is disposed in the rotary base, and the valve core base plate, fixed valve plate, rotary valve plate and rotary base are disposed in the housing. The rotary base is connected to a rotary operating rod, and the rotary operating rod drives the rotary base and the rotary valve plate to rotate coaxially in the housing.

[0012] Furthermore, a first sealing element is provided between the fixed valve plate and the valve core base plate.

[0013] Furthermore, the bottom surface of the valve core base plate is provided with at least two positioning posts, the bottom surface of the control valve chamber is provided with positioning holes corresponding to the positioning posts, and a second sealing element is provided between the valve core base plate and the bottom surface of the control valve chamber.

[0014] Furthermore, the fixed valve plate and the rotary valve plate are made of ceramic or plastic materials, and the contact surfaces of the rotary valve plate and the fixed valve plate are in a rotating sealing fit.

[0015] Furthermore, the housing is provided with drainage windows corresponding to the two drainage channels respectively, and the drainage windows are connected to the drainage outlets.

[0016] Furthermore, the cold water outlet and the hot water outlet are equipped with filter screens.

[0017] Furthermore, the rotating base is provided with a limiting structure to restrict the rotation angle of the rotating valve plate.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model provides a dedicated control valve chamber and internal water circuit in the shower body. The control valve chamber is equipped with a control valve, which controls the synchronous opening or closing of the cold water channel and hot water channel in the shower body through the cold water inlet, cold water outlet, hot water inlet, and hot water outlet. When the cold water channel and hot water channel are closed, the cold water outlet and hot water outlet can be dynamically connected to the drain outlet to drain the water accumulated in the internal water circuit of the shower body and the internal pipe of the shower head, thus preventing the formation of scale.

[0020] 2. The control valve of this utility model is provided with a valve core base plate, a fixed valve plate and a rotating valve plate. The rotating valve plate can rotate coaxially with the fixed valve plate. By rotating, the connecting cavity in the rotating valve plate and the corresponding transition connection hole connect the cold water inlet and the cold water outlet, and the hot water inlet and the hot water outlet, or connect the cold water outlet and the hot water outlet to the drain trough, so that water can be discharged through the drain outlet through the drain trough.

[0021] 3. The filter screens installed in the cold water outlet and hot water outlet of the control valve of this utility model can prevent dirt or scale particles larger than the mesh from entering the mixing valve chamber in the shower body, thus avoiding blockage of the water passage. Furthermore, when the rotating valve plate is rotated to the closed position for drainage, it can backwash the dirt in the control valve water passage and the filter screen, discharging the accumulated dirt or scale from the drain groove and drain window, giving the control valve a backwashing self-cleaning function. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the shower device with cleaning and sewage discharge functions according to this utility model;

[0023] Figure 2This is a front view schematic diagram of the shower body of this utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the shower body of this utility model;

[0025] Figure 4 for Figure 2 Cross-sectional view along the CC direction;

[0026] Figure 5 for Figure 2 Cross-sectional view along the DD direction;

[0027] Figure 6 This is a full sectional view of the shower body of this utility model;

[0028] Figure 7 This is a three-dimensional schematic diagram of the fixed valve plate of this utility model;

[0029] Figure 8 This is a three-dimensional exploded view of the control valve of this utility model;

[0030] Figure 9 This is a schematic diagram showing the positional relationship between the rotary valve plate and the fixed valve plate when the rotary valve plate is rotated to the open position.

[0031] Figure 10 This is a schematic diagram showing the positional relationship between the rotary valve plate and the fixed valve plate when the rotary valve plate is rotated to the closed position.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Shower body; 11. Diverter valve chamber; 12. Mixer valve chamber; 13. Control valve chamber; 14. Cold water inlet; 15. Cold water outlet; 16. Hot water inlet; 17. Hot water outlet; 18. Drain outlet; 19. Positioning hole; 2. Overhead shower head; 3. Hand shower head; 4. Diverter valve; 5. Thermostatic valve; 6. Control valve; 61. Valve core base plate; 611. Cold water inlet; 612. Cold water outlet; 613. Hot water inlet; 614. Hot water outlet; 615, positioning post; 62, fixed valve plate; 621, connection hole 1; 622, connection hole 2; 623, connection hole 3; 624, connection hole 4; 625, drain groove; 63, rotating valve plate; 631, first connecting cavity; 632, second connecting cavity; 64, rotating base; 65, housing; 651, drain window; 66, rotating operating lever; 67, first sealing element; 68, second sealing element; 69, filter screen. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1:

[0035] See Figure 1-10As shown, a shower device with cleaning and drainage functions includes a shower body 1, an overhead shower head 2, and a hand shower head 3. The shower body 1 is connected to cold and hot water inlet pipes. One end of the shower body 1 is equipped with a water distribution valve 4, and the other end of the shower body 1 is equipped with a thermostatic regulating valve 5. The shower body 1 has a water distribution valve chamber 11 and a mixing valve chamber 12, which are respectively installed with the water distribution valve 4 and the thermostatic regulating valve 5. The shower body 1 has a control valve chamber 13, which has a cold water inlet 14, a cold water outlet 15, a hot water inlet 16, a hot water outlet 17, and a drain outlet 18. The control valve chamber 13 is equipped with a control valve 6. The control valve 6 controls the synchronous opening or closing of the cold water channel and the hot water channel in the shower body 1 through the cold water inlet 14, the cold water outlet 15, the hot water inlet 16, and the hot water outlet 17. When the cold water channel and the hot water channel are closed, the cold water outlet 15 and the hot water outlet 17 are dynamically connected to the drain outlet 18 for drainage. The cold water inlet 14 is connected to the cold water inlet pipe through the cold water channel, and the cold water outlet 15 is connected to the cold water inlet of the mixing valve chamber 12; the hot water inlet 16 is connected to the hot water inlet pipe through the hot water channel, and the hot water outlet 17 is connected to the hot water inlet of the mixing valve chamber 12; the output port of the mixing valve chamber 12 is connected to the water distribution valve chamber 11 through the warm water path; the water distribution valve 4 is used to switch the water supply path connecting the overhead shower head 2 and the hand shower head 3.

[0036] Furthermore, the control valve 6 includes a valve core base plate 61, a fixed valve plate 62, and a rotating valve plate 63. The fixed valve plate 62 and the rotating valve plate 63 are made of ceramic or plastic materials. The valve core base plate 61 is provided with a cold water inlet 611, a cold water outlet 612, a hot water inlet 613, and a hot water outlet 614. The fixed valve plate 62 is provided with a connection hole 621, a connection hole 622, a connection hole 623, and a connection hole 624 corresponding to the cold water inlet 611, the cold water outlet 612, the hot water inlet 613, and the hot water outlet 614, respectively. The fixed valve plate 62 is also provided with two drain holes. The two drainage channels 625 are symmetrically arranged between the connecting holes 622 and 623, and the connecting hole 621 and 624. The rotating valve plate 63 has a symmetrically arranged first connecting cavity 631 and second connecting cavity 632. The rotating valve plate 63 rotates coaxially relative to the fixed valve plate 62, so that the first connecting cavity 631 and the second connecting cavity 632 connect the connecting hole 621 and the connecting hole 622, and the connecting hole 623 and the connecting hole 624, respectively, or connect the connecting hole 622 and the drainage channel 625, and the connecting hole 624 and the drainage channel 625. The rotary valve plate 63 is disposed in the rotary base 64. The rotary base 64 is provided with a limiting structure to restrict the rotation angle of the rotary valve plate 63. The rotary valve plate 63 is provided with a corresponding rotating groove to ensure that the rotary valve plate 63 can synchronously connect the corresponding holes when rotating, and will not rotate too far to avoid cross-contamination of cold water and hot water in the control valve 6. The valve core base plate 61, the fixed valve plate 62, the rotary valve plate 63 and the rotary base 64 are disposed in the housing 65. The housing 65 is provided with drainage windows 651 corresponding to the two drainage grooves 625 respectively. The drainage windows 651 are connected to the drain outlet 18. The rotary base 64 is connected to a rotary operating rod 66. The rotary operating rod 66 drives the rotary base 64 and the rotary valve plate 63 to rotate coaxially in the housing 65. To ensure sealing, the contact surface between the rotary valve plate 63 and the fixed valve plate 62 is a rotational sealing fit.

[0037] A first sealing element 67 is provided between the fixed valve plate 62 and the valve core base plate 61. At least two positioning posts 615 are provided on the bottom surface of the valve core base plate 61, and positioning holes 19 corresponding to the positioning posts 615 are provided on the bottom surface of the control valve chamber 13. A second sealing element 68 is provided between the valve core base plate 61 and the bottom surface of the control valve chamber 13 to ensure a sealed connection. Furthermore, filter screens 69 are provided in the cold water outlet 612 and the hot water outlet 614. The filter screens 69 can prevent dirt or scale particles larger than the mesh size from entering the mixing valve chamber 12 in the shower body 1, avoiding blockage of the water passage. When the rotating valve plate 63 is rotated to the closed position for drainage, it can backwash the water passage inside the control valve 6 and the filter screen 69, discharging accumulated dirt or scale from the drain groove 625 and the drain window 651.

[0038] The working principle of this utility model is as follows: When the rotary valve plate 63 is rotated to the open position, the first connecting cavity 631 connects the first connecting hole 621 and the second connecting hole 622, and the second connecting cavity 632 connects the third connecting hole 623 and the fourth connecting hole 624. Cold water sequentially enters the mixing valve cavity 12 through the cold water inlet 14, cold water inlet hole 611, first connecting hole 621, first connecting cavity 631, second connecting hole 622, cold water outlet hole 612, and cold water outlet 15. Hot water sequentially enters the mixing valve cavity 12 through the hot water inlet 16, hot water inlet hole 613, third connecting hole 623, second connecting cavity 632, fourth connecting hole 624, hot water outlet hole 614, and hot water outlet 17. After the temperature is adjusted by the thermostatic regulating valve 5, the hot and cold water are kept at a constant temperature and flow to the water distribution valve cavity 11. After being controlled by the water distribution valve 4, the water flows to the overhead spray shower 2 or the hand spray shower 3 for use. At this time, the connection position relationship between the rotary valve plate 63 and the fixed valve plate 62 is as follows (reference). Figure 9 As shown.

[0039] When the rotary valve plate 63 is rotated to the closed position, the first connection hole 621 is closed first, the first connecting cavity 631 connects the second connection hole 622 to the drain channel 625, and the third connection hole 623 is closed at the same time. The second connecting cavity 632 connects the fourth connection hole 624 to another drain channel 625. At this time, cold water and hot water stop input, and the water in the water circuit inside the shower body 1 is discharged in two ways. One way flows through the mixing valve cavity 12, the hot water outlet 17, the hot water outlet hole 614, the fourth connection hole 624, the second connecting cavity 632, the drain channel 625, and the drain window 651 to the drain. One path leads to the outlet 18, while another path flows through the mixing valve chamber 12, cold water outlet 15, cold water outlet 612, connecting two holes 622, first connecting chamber 631, drain trough 625, and drain window 651 to the outlet 18 for discharge. Simultaneously, the water flow removes accumulated dirt or scale from the water path and filter screen 69 through the drain trough 625 and drain window 651, ensuring that accumulated water in the shower body 1, overhead shower head 2, and hand shower head 3 can be discharged promptly. This prevents cold water from dripping from the shower head first, affecting usage, and also prevents scale buildup. The connection position between the rotating valve plate 63 and the fixed valve plate 62 at this time is referenced. Figure 10 As shown.

[0040] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A shower device with cleaning and sewage discharge functions, comprising a shower body (1), an overhead shower head (2), and a hand shower head (3), wherein the shower body (1) is connected to cold and hot water inlet pipes, one end of the shower body (1) is provided with a water distribution valve (4), the other end of the shower body (1) is provided with a thermostatic regulating valve (5), and the shower body (1) is provided with a water distribution valve chamber (11) and a mixing valve chamber (12) respectively for installing the water distribution valve (4) and the thermostatic regulating valve (5), characterized in that: The shower body (1) is provided with a control valve chamber (13), which is provided with a cold water inlet (14), a cold water outlet (15), a hot water inlet (16), a hot water outlet (17) and a drain outlet (18). The control valve chamber (13) is provided with a control valve (6), which controls the synchronous opening or closing of the cold water channel and the hot water channel in the shower body (1) through the cold water inlet (14), the cold water outlet (15), the hot water inlet (16) and the hot water outlet (17), and dynamically connects the cold water outlet (15) and the hot water outlet (17) with the drain outlet (18) to drain water when the cold water channel and the hot water channel are closed.

2. A shower device with cleaning and sewage discharge function according to claim 1, characterized in that: The cold water inlet (14) is connected to the cold water inlet pipe through the cold water channel, and the cold water outlet (15) is connected to the cold water inlet of the mixing valve chamber (12); the hot water inlet (16) is connected to the hot water inlet pipe through the hot water channel, and the hot water outlet (17) is connected to the hot water inlet of the mixing valve chamber (12); the outlet of the mixing valve chamber (12) is connected to the water distribution valve chamber (11) through the warm water path; the water distribution valve (4) is used to switch the water supply path connecting the top spray shower head (2) and the hand spray shower head (3).

3. A shower device with cleaning and sewage discharge function according to claim 1 or 2, characterized in that: The control valve (6) includes a valve core base plate (61), a fixed valve plate (62), and a rotary valve plate (63). The valve core base plate (61) is provided with a cold water inlet (611), a cold water outlet (612), a hot water inlet (613), and a hot water outlet (614). The fixed valve plate (62) is provided with a connection hole (621), a connection hole (622), a connection hole (623), and a connection hole (624) corresponding to the cold water inlet (611), cold water outlet (612), hot water inlet (613), and hot water outlet (614), respectively. The valve plate (62) is also provided with two drainage grooves (625); the rotating valve plate (63) is provided with a first connecting cavity (631) and a second connecting cavity (632). The rotating valve plate (63) rotates coaxially relative to the fixed valve plate (62) so that the first connecting cavity (631) and the second connecting cavity (632) connect the first connecting hole (621) and the second connecting hole (622) and the third connecting hole (623) and the fourth connecting hole (624) respectively, or connect the second connecting hole (622) and the drainage groove (625) and the fourth connecting hole (624) and the drainage groove (625).

4. A shower device with cleaning and sewage discharge function according to claim 3, characterized in that: The two drainage channels (625) are respectively located between the connecting hole 2 (622) and the connecting hole 3 (623), and between the connecting hole 1 (621) and the connecting hole 4 (624), and the first connecting cavity (631) and the second connecting cavity (632) are symmetrically arranged.

5. A shower device with cleaning and sewage discharge function according to claim 3, characterized in that: The rotary valve plate (63) is located in the rotary base (64). The valve core base plate (61), the fixed valve plate (62), the rotary valve plate (63) and the rotary base (64) are located in the housing (65). The rotary base (64) is connected to a rotary operating rod (66). The rotary operating rod (66) drives the rotary base (64) and the rotary valve plate (63) to rotate coaxially in the housing (65).

6. A shower device with cleaning and sewage discharge function according to claim 3, characterized in that: A first sealing element (67) is provided between the fixed valve plate (62) and the valve core base plate (61).

7. A shower device with cleaning and sewage discharge function according to claim 3, characterized in that: The bottom surface of the valve core base plate (61) is provided with at least two positioning posts (615), the bottom surface of the control valve chamber (13) is provided with positioning holes (19) corresponding to the positioning posts (615), and a second sealing element (68) is provided between the bottom surface of the valve core base plate (61) and the bottom surface of the control valve chamber (13).

8. A shower device with cleaning and sewage discharge function according to claim 3, characterized in that: The fixed valve plate (62) and the rotary valve plate (63) are made of ceramic or plastic materials, and the contact surfaces of the rotary valve plate (63) and the fixed valve plate (62) are rotated and sealed together.

9. A shower device with cleaning and sewage discharge function according to claim 5, characterized in that: The housing (65) is provided with drainage windows (651) corresponding to the two drainage channels (625) respectively, and the drainage windows (651) are connected to the drain outlet (18).

10. A shower device with cleaning and sewage discharge function according to claim 5, characterized in that: The cold water outlet (612) and hot water outlet (614) are equipped with filter screens (69).

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