Automatic flushing device for closestool

Abstract

The utility model discloses an automatic flushing device for a closestool, which is characterized in that a movable conical ventilation sealing plug is arranged in an air inlet channel of an automatic flushing device, and when air enters the air inlet channel, the conical ventilation sealing plug is driven to move to block an air outlet, so that a conical flat folding air bag can quickly enter the air and stretch; the movable ejection block b is pushed to drive the movable ejection block a to realize two-stage progressive ejection action, and a flushing valve switch in a closestool water tank is pushed and pressed to realize automatic flushing of a closestool; the air inlet time is short, and the energy consumption of the air pump is low; after air intake is stopped, the flushing valve switch is reset to drive the conical flat-folding air bag to contract and reset, the conical ventilation sealing plug moves backwards under the action of exhaust pressure, the air outlet is opened for rapid exhaust, the conical flat-folding air bag retracts to be flat, triggering of the flushing valve switch of the closestool is stopped, flushing of the closestool is stopped, and waste caused by long-time flushing of the closestool is effectively avoided; meanwhile, after the closestool is installed, the function of the flushing pressing key on the water tank is not affected, and normal pressing flushing can still be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bathroom products, and in particular relates to an automatic flushing device for a toilet. Background Art

[0002] At present, the toilets with water tanks commonly used in people's lives are basically physical press flushing structures, which require manual pressing of the flush button to flush, which is relatively inconvenient to use and easily causes cross-infection of germs. There are also smart toilets with automatic flushing functions on the market, which are more convenient to use, but the production process is more complicated and the production cost is higher. Users need to replace and install the toilet again, which causes a lot of resource waste and environmental pollution problems. The sales price is also relatively expensive, and it is difficult to promote and popularize them on a large scale.

[0003] The prior Chinese utility model patent CN114622631A discloses a toilet flush actuator, including a housing, one end of which is provided with a mounting portion for connecting to a toilet water tank; a trigger member, which is inserted into the other end of the housing; a drive module (including a retractable airbag, an air inlet, an air outlet, a guide member and an air source), which is installed in the housing and connected to the trigger member, and is used to drive the trigger member to reciprocate to open / close the flush valve switch in the toilet water tank, so as to achieve the effect of automatic flushing. However, its disadvantage is that the retractable airbag is a multi-layer folding structure, which is thicker after shrinkage, and the corresponding housing thickness is also thicker, which affects the adaptability of low water tank toilets. The air outlet is a direct exhaust structure, which will cause air leakage during inflation, resulting in a slow inflation speed, a longer inflation time, and a large power consumption of the inflation pump, wasting electricity. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a small-sized, easy-to-install and energy-saving automatic flushing device for toilets; the automatic flushing device for toilets drives an air pump through a control module and connects an air pipe to control an automatic flusher to press a flushing valve switch in a water tank to flush, thereby realizing the function of automatic flushing of the toilet.

[0005] In order to solve the above technical problems, the utility model is implemented through the following technical solutions: an automatic flushing device for a toilet, which is a detachable assembly structure and can be directly installed and used on an ordinary toilet, including a control box externally arranged above the toilet and a positioning base built into the toilet water tank and an automatic flusher connected by an air pipe.

[0006] The control box includes a control module, an air pump, and an air pipe.

[0007] The automatic flusher adopts a conical folding airbag and a two-stage progressive ejection structure design, which greatly reduces the overall structural thickness; the automatic flusher can be installed on the toilet pressing rod for use or assembled with the positioning base and then installed on the flushing valve switch for use, forming a detachable assembly structure; the automatic flusher includes an air intake upper cover, a conical vent sealing plug, a screw-on lower cover, a conical folding airbag, a movable ejection block a, and a movable ejection block b;

[0008] The control module drives the air pump to connect the air pipe to control the automatic flusher to press the flush valve switch in the water tank to flush, thereby realizing the automatic flushing function of the toilet;

[0009] The upper part of the positioning base is provided with a circular base body with elastic openings, and four guide grooves are arranged around it. The lower part is provided with a circular ring fixing rib, which can be installed on the top of the flush valve switch in the toilet tank.

[0010] The air inlet cover is provided with 4 guide positioning buckles and can be movably assembled with the guide grooves of the positioning base. The top is provided with an internal thread column that can be connected to the toilet pressing rod and an air inlet channel is provided on the side. The top of the air inlet channel is provided with an air outlet with a diameter of 0.3-0.6mm and a taper opening of 30-60 degrees outward; the interior is provided with a conical structure, and a movable conical vent sealing plug can be assembled to block the air outlet;

[0011] The conical vent sealing plug is a conical hollow structure with a through hole, with a large end outer diameter of 3.5-6mm, a small end outer diameter of 2.5-5mm, a wall thickness of 0.85mm, and a length of about 11mm;

[0012] The screw-on lower cover is a structure with a middle through hole, with 4 positioning ribs on the inner side of the bottom and 4 fixing buckles on the outer side of the top for screwing and assembling with the air inlet upper cover;

[0013] The movable ejection block a is provided with 4 limiting guide grooves on the outside thereof to match the screwed lower cover, and a through hole with ribs is provided in the middle of the bottom;

[0014] The movable ejection block b is a "T"-shaped boss with a through hole in the middle, and a plurality of rubber reduction grooves are arranged around the circumference to reduce the ejection guide friction surface; the boss part passes through the through hole in the middle of the movable ejection block a to form a movable assembly structure;

[0015] The conical folding airbag is a conical multi-layer foldable flattenable structure made of soft rubber material arranged inside the automatic flusher. The front part of the conical airbag is provided with a conical buckle fixedly connected with the movable ejection block b to drive the movable ejection block a to realize a two-stage progressive ejection action.

[0016] The utility model arranges a movable conical vent sealing plug in the air inlet channel of the automatic flusher, and drives the conical vent sealing plug to move and block the air outlet when air is inhaled into the air inlet channel, so that the conical folded air bag can quickly inhale air and stretch out, pushing the movable ejection block b to drive the movable ejection block a The utility model realizes a two-stage progressive ejection action, pushes and presses the flush valve switch in the toilet water tank, and realizes automatic flushing of the toilet; the air intake time is short, and the energy consumption of the air pump is also low; after the air intake is stopped, the flush valve switch is reset, driving the conical folding airbag to shrink and reset, and under the action of the exhaust pressure, the conical vent sealing plug moves backward and opens the air outlet for rapid exhaust, the conical folding airbag shrinks and becomes flat, stops triggering the toilet flush valve switch, and the toilet stops flushing, effectively avoiding waste caused by long-term flushing of the toilet. At the same time, after the toilet is installed, the function of the flush button on the water tank of the utility model is not affected, and it can still be pressed normally for flushing; the automatic flusher occupies a small space, is easy to install, and has low cost, and is suitable for large-scale promotion and popular use.

[0017] Preferably, the conical ventilation sealing plug can be replaced with a ventilation sealing hose fixedly assembled at the opening of the air inlet channel; the ventilation sealing hose is a cylindrical hollow through-hole structure with a boss and made of soft rubber material with an outer diameter of 3.5-6mm at the large end, an outer diameter of 2.5-5mm at the small end, a wall thickness of 0.85mm and a length of about 16.5mm.

[0018] The beneficial effects of adopting the above-mentioned preferred scheme are: when air is taken in by the air inlet channel, the ventilation sealing hose blocks the air outlet under the action of the intake pressure, so that the conical folding airbag can quickly take in air and stretch out, pushing the movable ejection block b to drive the movable ejection block a to achieve a two-stage progressive ejection action, pushing and pressing the flush valve switch in the toilet tank to achieve automatic flushing of the toilet; the air intake time is short and the energy consumption of the air pump is also low; after the air intake channel stops taking in air, the ventilation sealing hose returns to a soft state to open the air outlet for rapid exhaust, the conical folding airbag shrinks and becomes flat, stops triggering the toilet flush valve switch, and the toilet stops flushing, effectively avoiding waste caused by long-term flushing of the toilet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments;

[0020] Figure 1 This is a schematic diagram of an installation of the automatic flushing device for a toilet of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the automatic flusher of the automatic flushing device for toilet of the utility model;

[0022] Figure 3 It is an expanded cross-sectional view of the automatic flusher of the automatic flushing device for toilet of the utility model;

[0023] Figure 4 It is a collapsed cross-sectional view of the automatic flusher of the automatic flushing device for toilets of the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the automatic flusher of the automatic flushing device for a toilet of the utility model from another angle.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Toilet; 2. Water tank; 3. Press button; 4. Flush valve switch; 5. Press lever; 6. Control module;

[0027] 7. Air pump; 8. Air pipe; 9. Automatic flusher; 10. Positioning base; 11. Air inlet cover; 12. Air outlet;

[0028] 13. Conical vent sealing plug; 14. Screw-on lower cover; 15. Conical folding airbag; 16. Movable ejector block a;

[0029] 17. movable ejector block b; 18. ventilation and sealing hose; 19. guide groove; 20. guide positioning buckle; 21. internal thread column;

[0030] 22. Air inlet channel; 23. Positioning ribs; 24. Fixed buckle; 25. Limiting guide groove; 26. Glue reduction groove;

[0031] 27. Control box; 28. Conical buckle; 29. ​​Circular base; 30. Elastic opening; 31. Circular fixing rib. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with specific implementation methods;

[0033] like Figure 1 to Figure 5 As shown, an automatic flushing device for toilets is a detachable assembly structure that can be directly installed and used on an ordinary toilet, including a control box 27 externally arranged above the toilet 1, a positioning base 10 built into the toilet water tank 2, and an automatic flusher 9 connected by an air pipe 8.

[0034] The control box 27 includes a control module 6 , an air pump 7 , and an air pipe 8 .

[0035] like Figure 3 to Figure 4As shown, the automatic flusher 9 adopts a conical folding airbag 15 and a two-stage progressive ejection structure design, which greatly reduces the overall structural thickness; the automatic flusher 9 can be installed on the toilet pressing rod 5 for use or installed on the flushing valve switch 4 after being assembled with the positioning base 10 to form a detachable assembly structure; the automatic flusher 9 includes an air intake upper cover 11, a conical vent sealing plug 13, a screw-on lower cover 14, a conical folding airbag 15, a movable ejection block a16, and a movable ejection block b17;

[0036] like Figure 1 As shown, the control module 6 controls the automatic flusher 9 by driving the air pump 7 connected to the air pipe 8 to press the flush valve switch 4 in the water tank 2 to flush, thereby realizing the automatic flushing function of the toilet;

[0037] like Figure 2 As shown, the circular base 29 with an elastic opening 30 on the upper part of the positioning base 10 is provided with four guide grooves 19 around it, and a circular fixing rib 31 is provided around the lower part, which can be installed on the top of the flush valve switch 4 in the toilet tank 2;

[0038] like Figure 1 As shown in FIG. 3 , the air inlet cover 11 is provided with 4 guide positioning buckles 20 that can be movably assembled with the guide grooves 19 of the positioning base 10, and the top is provided with an internal thread column 21 that can be connected to the toilet pressing rod 5 and the side is provided with an air inlet channel 22, and the top of the air inlet channel 22 is provided with an air outlet 12 with a diameter of 0.3-0.6mm and a taper opening of 30-60 degrees outward; the inside is equipped with a movable conical ventilation sealing plug 13 that can block the air outlet 12;

[0039] like Figure 3 As shown, the conical vent sealing plug 13 is a conical hollow structure with a through hole, with a large end outer diameter of 3.5-6mm, a small end outer diameter of 2.5-5mm, a wall thickness of 0.85mm, and a length of about 11mm. When air is taken in, it moves forward under the push of air pressure and blocks the air outlet 12. After the air intake stops, the flush valve switch 4 is reset to drive the conical folding airbag 15 to shrink and reset. Under the action of the exhaust pressure, the conical vent sealing plug 13 moves backward and opens the air outlet 12 for rapid exhaust.

[0040] like Figure 5 As shown, the screw-on lower cover 14 is a middle through-hole structure, with four positioning ribs 23 provided on the inner side of the bottom and four fixing buckles 24 provided on the outer side of the top for screwing and assembling with the air intake upper cover 11;

[0041] like Figure 5 As shown, the outer side of the movable ejection block a16 is provided with four limiting guide grooves 25 matching the screwed lower cover 14, and the middle of the bottom is a through hole with ribs;

[0042] The movable ejection block b17 is a "T"-shaped boss with a middle through hole structure, and a plurality of rubber reduction grooves 26 are arranged around the periphery to reduce the ejection guide friction surface; the boss part passes through the middle through hole of the movable ejection block a16 to form a movable assembly structure;

[0043] like Figure 3 As shown in Figure 4, the conical folding airbag 15 is a conical multi-layer foldable flat structure made of soft rubber material arranged inside the automatic flusher 9, and its front part is provided with a conical buckle position 28 fixedly connected with the movable ejection block b17 to drive the movable ejection block a16 to realize a two-stage progressive ejection action, pushing the flush valve switch 4 to perform the flushing action.

[0044] In the above embodiment, the utility model provides a movable conical vent sealing plug 13 in the air inlet channel 22 of the automatic flusher 9. When air is inletted into the air inlet channel 22, the conical vent sealing plug 13 is driven to move and block the air outlet 12, so that the conical folding airbag 15 can quickly inlet air and stretch out, push the movable ejection block b17 to drive the movable ejection block a16 to achieve a two-stage progressive ejection action, push and press the flush valve switch 4 in the toilet tank 2, and realize automatic flushing of the toilet 1; the air intake time is short, and the energy consumption of the air pump 7 is also low; after the air intake is stopped, the flush valve switch 4 is reset and drives the conical folding airbag 15 to shrink and reset, and under the action of the exhaust pressure, the conical vent sealing plug 13 moves backward and opens the air outlet 12 for rapid exhaust, and the conical folding airbag 15 shrinks and becomes flat, stops triggering the toilet flush valve switch 4, and the toilet 1 Stop flushing, effectively avoiding the waste of flushing for a long time in the toilet 1; at the same time, after the toilet 1 is installed, the function of the flushing button 3 on the water tank 2 of the utility model is not affected, and the flushing button 3 can still be pressed normally.

[0045] Preferably, Figure 4 As shown, the conical ventilation sealing plug 13 can be replaced by a ventilation sealing hose 18 fixedly assembled at the mouth of the intake passage 22; the ventilation sealing hose 18 is a cylindrical hollow through-hole structure with a boss and made of soft rubber material with an outer diameter of 3.5~6mm at the large end, an outer diameter of 2.5~5mm at the small end, a wall thickness of 0.85mm, and a length of about 16.5mm.

[0046] In the above embodiment, when air is taken in by the air inlet channel 22, the vent sealing hose 18 blocks the air outlet 12 under the action of the air inlet pressure, so that the conical folding airbag 15 can quickly take in air and stretch out, pushing the movable ejection block b17 to drive the movable ejection block a16 to achieve a two-stage progressive ejection action, pushing and pressing the flush valve switch 4 in the toilet tank 2, and realizing automatic flushing of the toilet; the air intake time is short, and the energy consumption of the air pump 7 is also low; after the air inlet channel 22 stops taking in air, the vent sealing hose 18 returns to a soft state to open the air outlet 12 for rapid exhaust, the conical folding airbag 15 shrinks and becomes flat, stops triggering the flush valve switch 4 of the toilet 1, and the toilet 1 stops flushing, effectively avoiding waste caused by long-term flushing of the toilet 1.

[0047] In the description of the present invention, it should be noted that the terms "front", "rear", "middle", "inside", "outside", "upper", "lower", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0048] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Various deformations, orientation transfers or any simple modifications, equivalent changes and modifications made according to the above-mentioned working principles are all within the protection scope of this technical solution.

Claims

1. An automatic flushing device for a toilet, characterized in that: The automatic flushing device for toilets is a detachable assembly structure, which can be directly installed and used on ordinary toilets, including a control box externally placed above the toilet, a positioning base built into the toilet water tank, and an automatic flusher connected by an air pipe; the automatic flusher adopts a conical folding airbag and a two-stage progressive ejection structure design, which greatly reduces the overall structural thickness; the automatic flusher can be installed on the toilet push rod for use or assembled with the positioning base and then installed on the flushing valve switch for use, forming a detachable assembly structure; the automatic flusher includes an air inlet upper cover, a conical vent sealing plug, a screw-on lower cover, a conical folding airbag, a movable ejection block a, and a movable ejection block b; the air inlet The upper cover is provided with 4 guide positioning buckles and guide grooves of the positioning base for movably assembly. The top is provided with an internal threaded column that can be connected to the toilet push rod and the side is provided with an air inlet channel. The top of the air inlet channel is provided with an air outlet with a diameter of 0.3~0.6mm and a taper opening of 30~60 degrees outward. A conical structure is provided inside, and a movable conical ventilation sealing plug for sealing the air outlet can be assembled; the conical ventilation sealing plug can be replaced with a ventilation sealing hose fixedly assembled at the mouth of the air inlet channel; the ventilation sealing hose is a cylindrical hollow structure with a boss and a through hole made of soft rubber material with an outer diameter of 3.5~6mm at the large end, an outer diameter of 2.5~5mm at the small end, a wall thickness of 0.85mm, and a length of about 16.5mm.

2. The automatic flushing device for toilet according to claim 1, characterized in that: The upper part of the positioning base is provided with a circular base body with an elastic opening, four guide grooves are arranged around it, and a circular ring fixing rib is arranged around the lower part, which can be installed on the top of the flush valve switch in the toilet tank.

3. The automatic flushing device for toilet according to claim 1, characterized in that: The conical ventilation sealing plug is a conical hollow structure with a through hole, with a large end outer diameter of 3.5-6mm, a small end outer diameter of 2.5-5mm, a wall thickness of 0.85mm and a length of about 11mm.

4. The automatic flushing device for a toilet according to claim 1, characterized in that: The screw-on lower cover is a structure with a middle through hole, with four positioning ribs on the inner side of the bottom and four fixing buckles on the outer side of the top for screwing and assembling with the air intake upper cover.

5. The automatic flushing device for toilet according to claim 1, characterized in that: The outer side of the movable ejection block a is provided with four limiting guide grooves matching the screwed lower cover, and the middle of the bottom is a through hole with ribs.

6. The automatic flushing device for a toilet according to claim 1, characterized in that: The movable ejection block b is a "T"-shaped boss with a middle through hole structure, and a plurality of rubber reduction grooves are arranged around the circumference to reduce the ejection guide friction surface; the boss part passes through the middle through hole of the movable ejection block a to form a movable assembly structure.

7. The automatic flushing device for a toilet according to claim 1, characterized in that: The conical folding airbag is a conical multi-layer foldable and flattenable structure made of soft rubber material arranged inside the automatic flusher. The front part of the airbag is provided with a conical buckle position fixedly connected with the movable ejection block b to drive the movable ejection block a to realize a two-stage progressive ejection action.

Images