Cleaning spray head of spray rod, self-cleaning spray rod assembly and closestool

Abstract

The cleaning spray head is used for spraying cleaning liquid to the surface of the spray rod and comprises a main body, the main body is provided with a liquid inlet and a liquid outlet, the liquid outlet is communicated with the liquid inlet, the main body is divided into a first part and a second part, the first part is provided with the liquid inlet, the second part is communicated with the first part, and one end of the second part is closed. At least one liquid outlet is formed in one side, facing the spray rod, of the second part; the accelerating hole is positioned at the junction of the first part and the second part and is communicated with the first part and the second part, and the inner diameter of the accelerating hole is smaller than that of the first part; and the air inlet hole is formed in the second part and is positioned between the liquid outlet and the accelerating hole. The cleaning device is simple in structure and good in cleaning effect.

Description

Technical Field

[0001] The utility model relates to the field of bathrooms, in particular to a cleaning spray head of a spray rod, a self-cleaning spray rod assembly and a toilet. Background Art

[0002] In the existing self-cleaning of the spray rod, a self-cleaning nozzle is added to clean the spray rod. In order to make the cleaning water sprayed by the nozzle cover the entire upper surface of the spray rod, it is necessary to set a plurality of self-cleaning holes or long strip-shaped water outlet holes on the self-cleaning nozzle, so that the water outlet hole area of ​​the nozzle is large and the water outlet flow is large. However, with this nozzle, the water outlet flow is large, resulting in poor adhesion, and the water flow will flow down the sides of the spray rod instead of flowing out along the spray rod. The water flow utilization rate is low, the cleaning effect is not obvious, and the external visual effect is poor. In addition, the cleaning water used is ordinary tap water or electrolyzed water, which has a general cleaning effect on the dirt remaining on the spray rod, and the user cannot intuitively see that the spray rod is cleaned. Utility Model Content

[0003] The main purpose of the utility model is to overcome the defect that the existing self-cleaning nozzle has a poor cleaning effect on the spray rod, and to provide a spray rod cleaning nozzle, a self-cleaning spray rod assembly and a toilet with simple structure and good cleaning effect.

[0004] The utility model adopts the following technical solutions:

[0005] A cleaning nozzle for a spray rod is used to spray cleaning liquid onto the surface of the spray rod, comprising a main body, the main body is provided with a liquid inlet and a liquid outlet, the liquid outlet is connected to the liquid inlet, the main body is divided into a first part and a second part, the first part is provided with a liquid inlet, the second part is connected to the first part and one end thereof is closed, and at least one liquid outlet is provided on the side of the second part facing the spray rod; it also includes an acceleration hole and an air inlet hole, the acceleration hole is located at the junction of the first part and the second part and connects the first part and the second part, the inner diameter of the acceleration hole is smaller than the inner diameter of the first part; the air inlet hole is arranged on the second part and is located between the liquid outlet and the acceleration hole.

[0006] Furthermore, the inner diameter of the acceleration hole is smaller than the inner diameter of the second portion, and the inner diameter of the acceleration hole is smaller than the inner diameter of the liquid outlet.

[0007] Furthermore, the second part is provided with a bottom surface, an inclined surface and an outer side surface; the bottom surface is opposite to the spray rod, and the outer side surface is located on the outer end of the second part close to the spray rod; the inclined surface is connected between the bottom surface and the outer side surface and is inclined toward the spray rod; the air inlet is located on the bottom surface, the outer side surface or the inclined surface, and the air inlet is close to the acceleration hole; the liquid outlet is located on the inclined surface.

[0008] Furthermore, the second part and the first part have an included angle; the acceleration hole is located at one end of the second part in the length direction, and the other end of the second part in the length direction is closed; and the liquid outlet is close to the closed end of the second part.

[0009] Furthermore, the second part is provided with a liquid outlet, which is located on the central axis of the spray rod; or the second part is provided with at least two liquid outlets, at least two liquid outlets are spaced apart along the length direction of the second part, and at least two liquid outlets are spaced apart along the circumferential direction of the spray rod.

[0010] A self-cleaning spray bar assembly comprises a spray bar and the above-mentioned spray bar cleaning nozzle, wherein the first part is located at the side of the spray bar and the second part is located at the top of the spray bar.

[0011] Furthermore, it also includes a fixing seat, the spray rod is axially movably arranged in the fixing seat sleeve, and the main body is detachably fixed on the fixing seat.

[0012] Furthermore, the fixing seat is provided with a through hole for the spray rod to pass through, and a guide groove is provided on the inner wall of the through hole where the cleaning nozzle is located. The guide groove is concave in the radial direction away from the spray rod, and the guide groove is located near the outer side of the through hole.

[0013] A toilet with a self-cleaning spray rod assembly comprises a toilet body, a first control valve, a second control valve, a foam device and the above-mentioned self-cleaning spray rod assembly; the water inlet end of the first control valve is connected to the water inlet pipe, the water outlet end of the first control valve is connected to the water inlet end of the second control valve, one output end of the second control valve is connected to a liquid inlet, the other output end of the second control valve is connected to an input port of the foam device, and the output port of the foam device is connected to the liquid inlet.

[0014] It can be seen from the above description of the utility model that compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, the main body is divided into a first part and a second part, the acceleration hole is located at the junction of the first part and the second part and connects the first part and the second part, the inflow of cleaning liquid is accelerated through the acceleration hole, the air inlet hole is located in the second part to inhale air and mix with the cleaning liquid under the action of negative pressure, so that the cleaning liquid sprayed from the liquid outlet can cover the surface of the spray rod to achieve cleaning, the structure is simple, and a mixed air-liquid flow that swings back and forth can be formed at the liquid outlet, and the cleaning effect is good.

[0016] 2. In the utility model, the inner diameter of the acceleration hole is smaller than the inner diameter of the first part and the inner diameter of the second part, and the inner diameter of the acceleration hole is also smaller than the inner diameter of the liquid outlet, so that the cleaning liquid can be accelerated by the acceleration hole to flow into the second part at a high speed, fully mixed with the inhaled air, and combined with the mixed liquid or clean water to spray foam or bubble water to meet different cleaning function requirements.

[0017] 3. In the utility model, the second part is provided with a bottom surface, an inclined surface and an outer side surface, and the liquid outlet is arranged on the inclined surface of the second part; so that the cleaning liquid is sprayed outward at a set angle toward the spray rod and tilted outward, and the sprayed cleaning liquid can flow outward along the axial direction of the spray rod; in addition, the acceleration hole is arranged at one end of the second part in the length direction, and the other end of the second part in the length direction is closed, and the liquid outlet is close to the closed end of the second part. When the cleaning liquid that flows into the second part at a high speed is sprayed from the liquid outlet, it also has a left-right swinging effect, which can cover the entire upper surface of the spray rod, and clean it in all directions, thereby improving the cleaning effect.

[0018] 4. In the utility model, the main body is detachably fixed on the fixing seat of the self-cleaning spray rod assembly, and a guide groove is arranged on the inner wall of the through hole of the fixing seat. The guide groove is concave in the radial direction away from the spray rod, and plays a guiding role on the cleaning liquid sprayed from the cleaning nozzle through the guide groove, guiding the cleaning liquid to flow concentratedly along the central axis of the spray rod; in addition, it is arranged as a single liquid outlet, although the water flow is small, the adhesion is strong, the stroke on the spray rod is farther, and the water flow utilization rate is high.

[0019] 5. In the utility model, a first control valve, a second control valve and a foam device are provided to cooperate with the self-cleaning spray rod assembly. By controlling the working states of the first control valve and the second control valve, the self-cleaning spray rod assembly is driven to spray foam or bubble water to clean the spray rod, so that the cleaning effect can be intuitively felt and the water flow rate is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the self-cleaning nozzle of the utility model (embodiment 1);

[0021] Figure 2 for Figure 1 A cross-sectional view of

[0022] Figure 3 This is a schematic diagram of the self-cleaning nozzle spraying cleaning fluid;

[0023] Figure 4 This is a structural diagram of the self-cleaning spray bar of the utility model;

[0024] Figure 5 for Figure 4 A partial enlarged view of

[0025] Figure 6 for Figure 4 A cross-sectional view of

[0026] Figure 7 for Figure 4 Front view of;

[0027] Figure 8 for Figure 4 A partial enlarged view of

[0028] Fig. 9 It is a three-dimensional diagram of a self-cleaning nozzle (Example 2);

[0029] Fig.10 for Fig. 9 A cross-sectional view of

[0030] Fig.11 This is a structural diagram of the utility model toilet;

[0031] Fig.12 for Figure 1 Fluid analysis diagram of cleaning water sprayed out from the nozzle;

[0032] Among them: 10, main body; 11, liquid inlet; 12, liquid outlet; 13, first part; 14, second part; 15, acceleration hole; 16, air inlet; 17, bottom surface; 18, inclined surface; 19, outer side surface, 20, spray rod; 30, drive assembly; 40, fixing seat; 41, through hole; 42, guide groove; 50, foam device; 70, toilet body; 80, first control valve; 90, second control valve. DETAILED DESCRIPTION

[0033] The present invention is further described below through specific implementation methods.

[0034] The terms "first" and "second" appearing in the present invention are only for the convenience of description to distinguish different components with the same name, and do not indicate a sequence or primary and secondary relationship.

[0035] In the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0036] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0037] join Figures 1 to 3, a cleaning nozzle for a spray bar, used for spraying cleaning liquid onto the surface of a spray bar 20, comprises a main body 10, and the main body 10 is provided with a liquid inlet 11 and a liquid outlet 12, etc. The liquid inlet 11 is used for inputting cleaning liquid; the liquid outlet 12 is connected with the liquid inlet 11, and is used for spraying cleaning liquid. The main body 10 is divided into a first part 13 and a second part 14, one end of the first part 13 is provided with a liquid inlet 11, and the second part 14 is connected with the other end of the first part 13 and is provided with a liquid outlet 12. The first part 13 and the second part 14 may also have an angle, which may be a right angle or an acute angle, etc., so that after the cleaning liquid enters the first part 13 through the liquid inlet 11, the water flow direction is changed through the second part 14.

[0038] The main body 10 also includes an acceleration hole 15 and an air inlet 16. The acceleration hole 15 is located at the junction of the first part 13 and the second part 14, and the first part 13 and the second part 14 are connected through the acceleration hole 15. The acceleration hole 15 is used to accelerate the cleaning liquid in the first part 13 so that it flows into the second part 14 at a high speed. In order to accelerate the cleaning liquid flowing into the second part 14, the inner diameter of the acceleration hole 15 is configured to be smaller than the inner diameter of the first part 13, and the inner diameter of the acceleration hole 15 is smaller than the inner diameter of the second part 14. In actual application, the inner diameter of the acceleration hole 15 is set to be much smaller than the inner diameter of the first part 13 and the inner diameter of the second part 14, so that the cleaning liquid can flow into the second part 14 at a high speed.

[0039] The air inlet 16 is located near the acceleration hole 15 of the second part 14, and the air inlet 16 is connected to the outside. When the air inlet 16 is arranged near the acceleration hole 15, when the high-speed cleaning liquid flows through the acceleration hole 15, a negative pressure is formed near the air inlet 16, and air is sucked through the air inlet 16, so that the gas and the cleaning liquid are mixed, and the cleaning liquid can be prevented from flowing out of the air inlet 16. The utility model is also arranged so that the inner diameter of the acceleration hole 15 is smaller than the inner diameter of the liquid outlet 12, so that the mixed cleaning liquid in the second part 14 can be quickly sprayed out from the liquid outlet 12.

[0040] Furthermore, the second part 14 is provided with a bottom surface 17, an inclined surface 18 and an outer side surface 19. The bottom surface 17 is opposite to the spray rod 20. The outer side surface 19 is located on the outer end side of the second part 14 close to the spray rod 20, and the inclined surface 18 is connected between the bottom surface 17 and the outer side surface 19 and is arranged obliquely. The liquid outlet 12 is located on the inclined surface 18, so that the cleaning liquid sprayed from the liquid outlet 12 can be sprayed outwardly at a set angle toward the spray rod 20 and inclined, and the sprayed cleaning liquid can flow outward along the axial direction of the spray rod 20. The air inlet 16 is located on the bottom surface 17, the outer side surface 19 or the inclined surface 18, and the second part 14 is also provided with an inner side surface and a top surface, etc. The air inlet 16 can also be arranged on the inner side surface or the top surface, that is, the air inlet 16 is arranged at a suitable position of the second part 14, and it is ensured that the air inlet 16 is connected to the outside and the second part 14.

[0041] In the present invention, the second part 14 is configured to have only one liquid outlet 12, and the liquid outlet 12 is located on the central axis of the spray bar 20. The acceleration hole 15 is disposed at one end of the second part 14 in the length direction, and the other end of the second part 14 in the length direction is closed, and the liquid outlet 12 is disposed close to the closed end of the second part 14. With this configuration, part of the cleaning liquid that flows into the second part 14 at a high speed is directly sprayed out from the liquid outlet 12, and part of the cleaning liquid flows to the closed section and then flows back to the liquid outlet 12 to collide with the new cleaning liquid, so that the cleaning liquid is sprayed out from the liquid outlet 12 at a variety of different angles, and also has the effect of swinging left and right, which can cover the entire upper surface of the spray bar and perform all-round cleaning.

[0042] Improves cleaning performance. Fig.12 Screenshot of the fluid analysis inside the cleaning nozzle.

[0043] In actual application of the utility model, the liquid inlet 11 of the main body can be input with clean water or foam liquid. If it is foam liquid, the foam liquid is mixed with the air sucked through the air inlet 16 in the second part 14 to generate a large amount of foam, and the liquid outlet 12 sprays the foam toward the spray rod 20 for cleaning. If the liquid inlet 11 inputs clean water, the clean water is mixed with the air sucked through the air inlet 16 in the second part 14 to form bubble water, and the liquid outlet 12 sprays the bubble water toward the spray rod 20 to clean the spray rod 20.

[0044] In addition, the second portion 14 may also be configured to have at least two liquid outlets 12, the at least two liquid outlets 12 being spaced apart along the length direction of the second portion 14, and the at least two liquid outlets 12 being spaced apart along the circumferential direction of the spray bar 20. Figure 9-10 The second portion 14 is provided with three liquid outlets 12 .

[0045] Based on this, the utility model also proposes a self-cleaning spray bar assembly, including a spray bar 20, a drive assembly 30, a fixing seat 40 and a cleaning nozzle of the spray bar, etc. The drive assembly 30 is mounted on the fixing seat 40, the spray bar 20 is axially movable through the fixing seat 40, and the drive assembly 30 is connected to drive the spray bar 20 to move axially to extend outward or retract inward.

[0046] The cleaning nozzle is fixed relative to the base, and is disposed outside the spray rod 20, and the first portion 13 is located at the side of the spray rod 20, and the second portion 14 is located at the top of the spray rod 20. It is also configured such that when the spray rod 20 is retracted, the cleaning nozzle is located at the spray hole of the spray rod 20, and when the spray rod 20 is extended outward, the water flow sprayed by the cleaning nozzle can flow along the axial direction of the spray rod.

[0047] Further, the main body 10 is detachably fixed on the fixing seat 40, and the fixing seat 40 is also provided with a through hole 41 for the spray rod 20 to pass through. The main body 10 can be located near the inner side of the through hole 41 in the axial direction, and a guide groove 42 is provided on the inner wall of the through hole 41 where the main body 10 is located, and the guide groove 42 is concave in the radial direction away from the spray rod 20. The guide groove 42 is located outside the through hole 41, and the guide groove 42 is also located on the central axis of the spray rod 20.

[0048] The self-cleaning spray bar assembly of the utility model is provided with a guide groove 42 on the inner wall of the through hole 41 of the fixing seat 40, and the guide groove 42 guides the cleaning liquid sprayed from the cleaning nozzle, and guides the cleaning liquid to flow along the central axis of the spray bar 20. And a single liquid outlet 12 is provided, although the water flow is small, the adhesion is strong, the travel on the spray bar 20 is longer, and the water flow utilization rate is high.

[0049] Based on this, the utility model also proposes a toilet with a self-cleaning spray rod, comprising a toilet body 70, a first control valve 80, a second control valve 90, a foam device 50 and the above-mentioned self-cleaning spray rod assembly. The water inlet end of the first control valve 80 is connected to the water inlet pipe, that is, the first control valve 80 is used to control the opening or closing of water inlet. The water outlet end of the first control valve 80 is connected to the water inlet end of the second control valve 90, one output end of the second control valve 90 is connected to the liquid inlet 11, and the other output end of the second control valve 90 is connected to the input port of the foam device 50, that is, the second control valve 90 is used to control the switching of water flow into the self-cleaning nozzle or into the foam device 50. The output port of the foam device 50 is connected to the liquid inlet 11. The liquid inlet 11 of the cleaning nozzle, the output port of the foam device 50 and an output port of the second control valve 90 are connected by a three-way matching connecting pipe.

[0050] The foam device 50 is realized by a common self-foaming device, which is provided with a mixing chamber, a foaming agent, etc., and a mixed liquid is output by adding the foaming agent and clean water into the mixing chamber for mixing. The mixed liquid will generate a large amount of foam after mixing with air in the second part 14 of the cleaning nozzle.

[0051] The first control valve 80 and the second control valve 90 of the toilet of the utility model can be electromagnetic valves, and the control device of the toilet is connected to the first control valve 80 and the second control valve 90 to control their working states. The specific cleaning functions realized include the following:

[0052] The first mode: start the first control valve 80 to start water intake, control the second control valve 90 to connect the foam device 50, then the clean water enters the mixing chamber of the foam device 50 and mixes with the foaming agent to obtain a mixed liquid, after the mixed liquid enters the self-cleaning nozzle, it mixes with the inhaled air in the second part 14 to generate a large amount of foam, the foam is sprayed out from the liquid outlet 12, and the sprayed foam has a left-right swing effect, at the same time, the spray bar 20 is controlled to move forward and backward, so that the foam can cover the entire spray bar 20. When the foam cleaning is completed, the second control valve 90 is controlled to switch to directly connect the cleaning nozzle, and the foam on the spray bar 20 is cleaned with bubble water.

[0053] The second mode: start the first control valve 80, and control the second control valve 90 to switch to the water outlet 2, directly connect the cleaning nozzle, and the clean water is mixed with the air in the second part 14 to form bubble water to clean the spray rod 20, and the bubble water has a left-right swinging effect, and the cleaning effect is good.

[0054] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A cleaning nozzle for a spray bar, used for spraying cleaning liquid toward the surface of the spray bar, comprising a main body, the main body is provided with a liquid inlet and a liquid outlet, the liquid outlet is connected to the liquid inlet, and is characterized in that: The main body is divided into a first part and a second part, the first part is provided with the liquid inlet, the second part is connected to the first part and one end of which is closed, and the second part is provided with at least one liquid outlet on the side facing the spray rod; it also includes an acceleration hole and an air inlet hole, the acceleration hole is located at the junction of the first part and the second part and connects the first part and the second part, and the inner diameter of the acceleration hole is smaller than the inner diameter of the first part; The air inlet is arranged on the second part and is located between the liquid outlet and the acceleration hole.

2. A spray bar cleaning nozzle as claimed in claim 1, characterized in that: The inner diameter of the acceleration hole is smaller than the inner diameter of the second portion, and the inner diameter of the acceleration hole is smaller than the inner diameter of the liquid outlet.

3. A spray bar cleaning nozzle as claimed in claim 1, characterized in that: The second part is provided with a bottom surface, an inclined surface and an outer side surface; the bottom surface is opposite to the spray rod, and the outer side surface is located on the side of the second part close to the outer end of the spray rod; the inclined surface is connected between the bottom surface and the outer side surface and is inclined toward the spray rod; the air inlet is located on the bottom surface, the outer side surface or the inclined surface, and the air inlet is close to the acceleration hole; the liquid outlet is located on the inclined surface.

4. A spray bar cleaning nozzle as claimed in claim 1, characterized in that: The second part and the first part have an included angle; the acceleration hole is located at one end of the second part in the length direction, and the other end of the second part in the length direction is closed; the liquid outlet is close to the closed end of the second part.

5. A spray bar cleaning nozzle as claimed in claim 1, characterized in that: The second part is provided with one liquid outlet, and the liquid outlet is located on the central axis of the spray rod; or the second part is provided with at least two liquid outlets, at least two of the liquid outlets are spaced apart along the length direction of the second part, and at least two of the liquid outlets are spaced apart along the circumferential direction of the spray rod.

6. A self-cleaning spray bar assembly, comprising a spray bar, characterized in that: It also comprises a cleaning nozzle for a spray bar according to any one of claims 1 to 5, wherein the first portion is located at a side of the spray bar, and the second portion is located at a top of the spray bar.

7. A self-cleaning spray bar assembly according to claim 6, characterized in that: It also includes a fixing seat, the spray rod is axially movably arranged through the fixing seat sleeve, and the main body is detachably fixed on the fixing seat.

8. A self-cleaning spray bar assembly as claimed in claim 7, characterized in that: The fixing seat is provided with a through hole for the spray rod to pass through, and a guide groove is provided on the inner wall of the through hole where the cleaning nozzle is located. The guide groove is concave in the radial direction away from the spray rod, and the guide groove is located near the outside of the through hole.

9. A toilet with a self-cleaning spray bar assembly, comprising a toilet body, characterized in that: It also includes a first control valve, a second control valve, a foam device and a self-cleaning spray rod assembly as described in any one of claims 6-8; the water inlet end of the first control valve is connected to the water inlet pipe, the water outlet end of the first control valve is connected to the water inlet end of the second control valve, one output end of the second control valve is connected to the liquid inlet, the other output end of the second control valve is connected to the input port of the foam device, and the output port of the foam device is connected to the liquid inlet.

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