Flush valve with cleaning waterway

Abstract

The utility model provides a flush valve with a cleaning waterway, which comprises a valve main body, the valve main body is provided with a water inlet channel, a water outlet channel, a backpressure cavity and a pressure relief component, and the water inlet channel and the water outlet channel form the flushing waterway; a cleaning water way is further arranged in the valve body. A vacuum breaking channel communicated with the external environment is arranged at the top of the valve body, and the valve body is further provided with a first through channel penetrating through the water outlet channel and the vacuum breaking channel and a second through channel penetrating through the cleaning water channel and the vacuum breaking channel. And movable water sealing pieces are assembled in the first through channel and the second through channel. Therefore, the flushing valve has a flushing control function and a clean water source transmission function, the structure is simplified, and the cleaning water path also has an anti-siphon effect.

Description

Technical Field

[0001] The utility model relates to the field of toilet accessories, in particular to a flushing valve with a cleaning water channel. Background Art

[0002] The flush valve is a component used to control flushing in the toilet. A commonly used flush valve is one that indirectly controls the opening of the flushing waterway by controlling the pressure relief of the back pressure chamber, as shown in a flush valve disclosed in CN114753455A. However, with the further increase in demand, smart toilet products have a health care function, that is, providing a clean water source (such as filtered water in a toilet tank) to spray and clean human body parts. However, in the prior art, the added flushing waterway uses additional components for transmission, which increases the number of components, and the overall structure is more complicated, which is not conducive to installation and maintenance. Utility Model Content

[0003] Therefore, in order to solve the above problems, the utility model provides a flushing valve with a cleaning water channel, in which a cleaning water channel is added to the structure of the original flushing valve, thereby achieving the effect of simplifying the structure.

[0004] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0005] A flushing valve with a cleaning water circuit comprises a valve body, wherein the valve body is provided with a water inlet channel, a water outlet channel connected to the water inlet channel, a back pressure chamber arranged between the water inlet channel and the water outlet channel, and a pressure relief assembly connected to the back pressure chamber, and the water inlet channel and the water outlet channel constitute a flushing water circuit; wherein a cleaning water circuit is also arranged in the valve body; the cleaning water circuit and the flushing water circuit are not connected, a vacuum breaking channel connected to the external environment is arranged on the top of the valve body, and the valve body is also provided with a first through channel passing through the water outlet channel and the vacuum breaking channel, and a second through channel passing through the cleaning water circuit and the vacuum breaking channel; both the first through channel and the second through channel are equipped with movable water sealing parts.

[0006] Furthermore, the first through channel and the second through channel both include a guide hole section and a ventilation section located at the lower end of the guide hole section, and the caliber of the ventilation section is larger than that of the guide hole section; the movable water sealing component includes a tubular body and two convex rings located at the lower end of the tubular body and radially protruding from the tubular body, and a sealing ring is installed between the two convex rings, and the tubular body has a top opening, a tube cavity and a lateral opening that are connected; the bottom of the tubular body is closed, and the tubular body is fitted in the guide hole section. In the non-water-flowing state, the movable water sealing component moves downward to connect the lateral opening to the ventilation section; in the water-flowing state, the water pressure drives the movable water sealing component to move upward to cause the sealing ring to seal the ventilation section.

[0007] Furthermore, a pressure reducing component is also provided in the flushing water circuit.

[0008] Furthermore, the valve body is provided with a through hole which penetrates transversely and communicates with the cleaning water channel, and the pressure reducing assembly is assembled in the through hole.

[0009] Furthermore, the pressure reducing assembly includes a connecting rod, a sealing membrane assembly, a spring, an adjusting member, a first sealing cover and a second sealing cover. A plurality of bosses are arranged at intervals between the through hole and the cleaning water channel. The connecting rod is assembled in the through hole. The sealing membrane assembly is assembled on the outer periphery of the connecting rod. The outer periphery of the sealing membrane assembly is assembled on the first side opening of the through hole through the first sealing cover. The adjusting member is assembled on the first sealing cover. The spring is arranged between the adjusting member and the sealing membrane assembly to abut the sealing membrane assembly against the boss. The second sealing cover is sealed and covered on the second side opening of the through hole.

[0010] Furthermore, the sealing membrane assembly includes a sealing membrane and metal sheets mounted on both sides of the sealing membrane, the spring abuts against the metal sheet on one side of the sealing membrane assembly, and the metal sheet on the other side of the sealing membrane assembly abuts against the boss.

[0011] Furthermore, an abutting protrusion is provided on the outer periphery of the connecting rod, and an abutting nut is also assembled at the end of the connecting rod. The sealing diaphragm is clamped between the abutting protrusion and the abutting nut to achieve assembly with the connecting rod.

[0012] Furthermore, the number of the water outlet channels is two, and the water inlet channel and the two water outlet channels are arranged along the length direction of the valve body to form a flushing water path with one inlet and two outlets.

[0013] Furthermore, the inlet and outlet of the cleaning water channel are both arranged on the side of the valve body in the width direction.

[0014] Furthermore, the pressure relief channel of the pressure relief assembly is connected to the water outlet channel.

[0015] The technical solution provided by the utility model has the following beneficial effects:

[0016] A cleaning water channel for transmitting clean water is added to the original flushing valve. The cleaning water channel and the flushing water channel are not connected, so that the flushing valve has both the function of controlling flushing and the function of transmitting clean water, thereby simplifying the structure. The water outlet channel of the flushing water channel and the cleaning water channel share a vacuum breaking channel, and each is equipped with a movable water sealing part to achieve an anti-siphon function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the flush valve with a cleaning water channel in the embodiment is shown as follows Figure 1 ;

[0018] Figure 2 The three-dimensional structure of the flush valve with a cleaning water channel in the embodiment is shown as follows Figure 2 ;

[0019] Figure 3 Shown is a top view of a flush valve with a cleaning water channel in an embodiment;

[0020] Figure 4 Shown Figure 3 Sectional view along line AA;

[0021] Figure 5 Shown Figure 3 Sectional view along the midline BB;

[0022] Figure 6 Shown Figure 3 Sectional view of the mid-CC line;

[0023] Figure 7 The figure shows a partial structural schematic diagram of the valve body in the embodiment;

[0024] Figure 8 Shown is a schematic structural diagram of the movable water sealing member in the embodiment.

[0025] Reference numerals:

[0026] 10. Valve body; 11. Water inlet channel; 12. Water outlet channel; 13. Vacuum breaking channel; 14. First through channel; 15. Back pressure chamber; 16. Water seal assembly; 17. Pressure relief assembly; 171. Pressure relief channel; 172. Solenoid valve; 18. Second through channel; 191. Guide hole section; 192. Ventilation section; 20. Cleaning water path; 201. Inlet; 202. Outlet; 21. Through hole; 22. Boss; 23. Water inlet joint; 24. Water outlet joint; 30. Movable water sealing member; 31. Tubular body; 32. Top opening; 33. Tube cavity; 34. Side opening; 35. Convex ring; 40. Pressure reducing assembly; 41. Connecting rod; 411. Abutting convex part; 42. Sealing membrane assembly; 43. Spring; 44. First sealing cover; 45. Adjusting member; 46. Second sealing cover; 47. Abutting nut. DETAILED DESCRIPTION

[0027] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] In the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0029] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figures 1 to 8 As shown, the present embodiment provides a flushing valve with a cleaning water circuit, comprising a valve body 10, wherein the valve body 10 is provided with a water inlet channel 11, a water outlet channel 12 connected to the water inlet channel 11, a back pressure chamber 15 arranged between the water inlet channel 11 and the water outlet channel 12, and a pressure relief assembly 17 connected to the back pressure chamber 15. Specifically, the number of the water outlet channels 12 is two, and the water inlet channel 11 and the two water outlet channels 12 are arranged along the length direction of the valve body 10 to form a one-inlet and two-outlet flushing water circuit. There is a back pressure chamber 15 between each water outlet channel 12 and the water inlet channel 11. The structure of the back pressure chamber 15 adopts the existing structure, and its working principle is: the water in the water inlet channel 11 flows into the back pressure chamber 15, forcing the water seal component 16 of the back pressure chamber 15 to move toward the water inlet of the water outlet channel 12 and finally block the water inlet of the water outlet channel 12; when the pressure relief component 17 controls the back pressure chamber 15 to relieve pressure, the water pressure in the back pressure chamber 15 is reduced, and the water seal component 16 of the back pressure chamber 15 retracts, thereby opening the water inlet of the water outlet channel 12, and the water in the water inlet channel 11 flows into the water outlet channel 12, and finally the flushing of the toilet is realized; specifically, in this embodiment, the pressure relief component includes a pressure relief channel 171 connected to the back pressure chamber 15 and a solenoid valve 172 for controlling the on and off of the pressure relief channel 171, and the pressure relief channel 171 of the pressure relief component 17 is connected to the water outlet channel 12, and the water discharged through the back pressure chamber 15 finally flows into the water outlet channel 12.

[0031] The valve body 10 is also provided with a cleaning water channel 20; the cleaning water channel 20 is not connected to the flushing water channel, and the cleaning water channel 20 is used to transmit clean water. In this way, the flushing valve has both the function of controlling flushing and the function of transmitting clean water, thereby simplifying the structure.

[0032] The top of the valve body 10 is provided with a vacuum breaking channel 13 connected to the external environment. The valve body 10 is also provided with a first through channel 14 penetrating the water outlet channel 12 and the vacuum breaking channel 13 and a second through channel 18 penetrating the cleaning water path 20 and the vacuum breaking channel 13. The first through channel 14 and the second through channel 18 are both equipped with movable water sealing parts 30. In this arrangement, when the water outlet channel 12 is blocked by the water sealing assembly 16 of the back pressure chamber 15, the negative pressure of the water outlet channel 12 drives the corresponding movable water sealing part 30 to move downward, as shown in FIG. Figure 4 As shown, the water outlet channel 12 is connected to the vacuum breaking channel 13, thereby destroying the negative pressure state in the water outlet channel 12 and achieving an anti-siphon effect. Similarly, when the cleaning water source is not supplied, the negative pressure generated in the cleaning water channel 20 forces the corresponding movable water sealing member 30 to move downward, as shown in FIG. Figure 5 As shown, the cleaning waterway 20 is connected to the vacuum breaking channel 13, thereby destroying the negative pressure state in the cleaning waterway 20 and achieving an anti-siphon effect. The flushing waterway and the cleaning waterway 20 share the vacuum breaking channel 13, and the structural design is compact.

[0033] Specifically, the first through channel 14 and the second through channel 18 each include a guide hole section 191 and a vent section 192 located at the lower end of the guide hole section 191, and the vent section 192 has a larger diameter than the guide hole section 191; Figure 8 As shown, the movable water sealing member 30 includes a tubular body 31 and two protruding rings 35 located at the lower end of the tubular body 31 and radially protruding from the tubular body 31, and a sealing ring is installed between the two protruding rings 35. The tubular body 31 has a top opening 32, a tube cavity 33 and a side opening 34 that are connected. The top opening 32 of the tubular body 31 is connected to the vacuum breaking channel 13 at the top; the bottom of the tubular body 31 is closed. The tubular body 31 is fitted in the guide hole section. In the non-water state, the movable water sealing member 30 moves downward to make the side opening 34 connected to the ventilation section 192. In this way, the internal channel (water outlet channel 12 or cleaning water channel 20) is connected to the vacuum breaking channel 13 through the ventilation section 192, the side opening 34, the tube cavity 33 and the top opening 32 in sequence, and anti-siphoning is achieved. In the water flow state, the water pressure drives the movable water sealing member 30 to move upward so that the sealing ring blocks the ventilation section 192, thereby blocking the first through channel 14 or the second through channel 18. The arrangement of the movable water sealing member 30 has a simple structure and good effect. Of course, in other embodiments, the structure of the movable water sealing member 30 is not limited to this.

[0034] The flushing water channel 20 is also provided with a pressure reducing assembly 40 for reducing the pressure of the water flow in the flushing water channel 20 to prevent the water pressure from being too high and affecting the spraying effect.

[0035] Specifically, the valve body 10 is provided with a through hole 21 which penetrates transversely and communicates with the cleaning water channel 20 , and the decompression assembly 40 is assembled in the through hole 21 , so as to facilitate the assembly of the decompression assembly 40 .

[0036] More specifically, the pressure reducing assembly 40 includes a connecting rod 41, a sealing membrane assembly 42, a spring 43, an adjusting member 45, a first sealing cover 44 and a second sealing cover 46. A plurality of bosses 22 are arranged at intervals between the through hole 21 and the cleaning water channel 20. The connecting rod 41 is assembled in the through hole 21. The sealing membrane assembly 42 is assembled on the outer periphery of the connecting rod 41. The outer periphery of the sealing membrane assembly 42 is assembled on the first side opening of the through hole 21 through the first sealing cover 44. The adjusting member 45 is assembled on the first sealing cover 44. The spring 46 is arranged between the adjusting member 45 and the sealing membrane assembly 42 to abut the sealing membrane assembly 42 on the boss 22. The second sealing cover 46 is sealed and covered on the second side opening of the through hole 21. In this way, when no water flows, the sealing membrane assembly 42 rests on the multiple bosses 22 under the action of the spring 43, and the through hole 21 and the cleaning water channel 20 are connected through the channel formed between the multiple bosses 22. After water flows, the water will impact the sealing membrane assembly 42, achieve pressure reduction, and flow through the channel formed between the multiple bosses 22.

[0037] In this embodiment, the adjusting member 45 is an adjusting screw, which is threaded onto the first sealing cover 44 . The pressure applied by the spring 43 to the sealing membrane assembly 42 can be adjusted by screwing the adjusting screw in or out.

[0038] In this embodiment, the sealing membrane assembly 42 includes a sealing membrane and metal sheets assembled on both sides of the sealing membrane, the spring 43 abuts against the metal sheet on one side of the sealing membrane assembly 42, and the metal sheet on the other side of the sealing membrane assembly 42 abuts against the boss 22; both sides are in rigid contact through the metal sheets, effectively protecting the sealing membrane in the middle.

[0039] In this embodiment, the outer periphery of the connecting rod 41 is provided with an abutment protrusion 411, and the end of the connecting rod 41 is also equipped with an abutment nut 47. The sealing membrane assembly 42 is clamped between the abutment protrusion 411 and the abutment nut 47 to achieve assembly with the connecting rod. The assembly structure is simple and easy to implement.

[0040] Specifically, the above-mentioned structure and assembly method of the decompression component 40 is one of the more preferred implementations in the present application. Of course, in other embodiments, the structure of the decompression component 40 is not limited thereto. For example, the components of the adjustment member 45 may not be used, or other components capable of decompression may be used instead.

[0041] Furthermore, in order not to increase the volume of the flush valve, in this embodiment, the inlet 201 and the outlet 202 of the cleaning water circuit 40 are both arranged on the side in the width direction of the valve body 10, and the inlet 201 is connected to the water inlet connector 23, and the outlet 202 is connected to the water outlet connector 24.

[0042] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A flushing valve with a cleaning waterway, comprising a valve body, wherein the valve body is provided with a water inlet channel, a water outlet channel connected to the water inlet channel, a back pressure chamber provided between the water inlet channel and the water outlet channel, and a pressure relief assembly connected to the back pressure chamber, wherein the water inlet channel and the water outlet channel constitute a flushing waterway; characterized in that: A cleaning water circuit is also provided in the valve body; the cleaning water circuit and the flushing water circuit are not connected, a vacuum breaking channel connected to the external environment is provided on the top of the valve body, and the valve body is also provided with a first through channel passing through the water outlet channel and the vacuum breaking channel and a second through channel passing through the cleaning water circuit and the vacuum breaking channel; movable water sealing parts are installed in the first through channel and the second through channel.

2. The flush valve with a cleaning water channel according to claim 1, characterized in that: The first through channel and the second through channel both include a guide hole section and a vent section located at the lower end of the guide hole section, and the caliber of the vent section is larger than that of the guide hole section; the movable water sealing component includes a tubular body and two convex rings located at the lower end of the tubular body and radially protruding from the tubular body, and a sealing ring is installed between the two convex rings, and the tubular body has a top opening, a tube cavity and a lateral opening that are connected; the bottom of the tubular body is closed, and the tubular body is fitted in the guide hole section. In the non-water-flowing state, the movable water sealing component moves downward to connect the lateral opening to the vent section; in the water-flowing state, the water pressure drives the movable water sealing component to move upward to cause the sealing ring to block the vent section.

3. The flush valve with a cleaning water channel according to claim 1, characterized in that: A pressure reducing component is also provided in the flushing water channel.

4. The flush valve with a cleaning water channel according to claim 3, characterized in that: The valve body is provided with a through hole which penetrates transversely and communicates with the cleaning water channel, and the pressure reducing assembly is assembled in the through hole.

5. The flush valve with a cleaning water channel according to claim 4, characterized in that: The pressure reducing assembly comprises a connecting rod, a sealing membrane assembly, a spring, an adjusting member, a first sealing cover and a second sealing cover. A plurality of bosses are arranged at intervals between the through hole and the cleaning water channel. The connecting rod is assembled in the through hole. The sealing membrane assembly is assembled on the outer periphery of the connecting rod. The outer periphery of the sealing membrane assembly is assembled on the first side opening of the through hole through the first sealing cover. The adjusting member is assembled on the first sealing cover. The spring is arranged between the adjusting member and the sealing membrane assembly to abut the sealing membrane assembly on the boss. The second sealing cover is sealed on the second side opening of the through hole.

6. The flush valve with a cleaning water channel according to claim 5, characterized in that: The sealing membrane assembly comprises a sealing membrane and metal sheets assembled on both sides of the sealing membrane, the spring abuts against the metal sheet on one side of the sealing membrane assembly, and the metal sheet on the other side of the sealing membrane assembly abuts against the boss.

7. The flush valve with a cleaning water channel according to claim 6, characterized in that: The outer periphery of the connecting rod is provided with an abutting convex portion, and the end of the connecting rod is also equipped with an abutting nut. The sealing diaphragm is clamped between the abutting convex portion and the abutting nut to achieve assembly with the connecting rod.

8. The flush valve with a cleaning water channel according to claim 1, characterized in that: The number of the water outlet channels is two, and the water inlet channel and the two water outlet channels are arranged along the length direction of the valve body to form a flushing water path with one inlet and two outlets.

9. The flush valve with a cleaning water channel according to claim 1 or 8, characterized in that: The inlet and the outlet of the cleaning water channel are both arranged on the side of the valve body in the width direction.

10. The flush valve with a cleaning water channel according to claim 1, characterized in that: The pressure relief channel of the pressure relief component is connected to the water outlet channel.

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