An automatic flushing control device for a toilet
By monitoring the time a person stays in the toilet using an infrared sensor, and controlling the electric telescopic rod to adjust the flushing volume, the problem of existing automatic toilet flushing devices being unable to control the flushing based on urination and defecation is solved, achieving precise water saving and efficient flushing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN HONGBO MICROELECTRONICS TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-23
Smart Images

Figure CN224395698U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of toilet flushing technology, and specifically relates to an automatic flushing control device for toilets. Background Technology
[0002] The flush volume design of the toilet's large and small buttons embodies the wisdom of "on-demand allocation," achieving a balance between cleaning effectiveness and water conservation through precise water control. From the home to society, the cumulative effect of this detailed design is significant, reducing water costs and contributing to water resource protection. In daily use, correctly identifying the button functions and performing regular maintenance can maximize its water-saving benefits.
[0003] Currently, Chinese utility model patent CN207988070U discloses an automatic toilet flushing device. This device includes a screw, a support frame, a motor, an eccentric wheel, an infrared sensor switch, and a central controller. The support frame has a slotted hole. The motor is fixed to the side of the support frame, and its output shaft passes through the slotted hole. The eccentric wheel is mounted on the support frame on the side opposite the motor and is connected to the motor's output shaft. One end of the screw passes through a connector, and its bottom end is in contact with the flush valve. The other end of the connector is in contact with the eccentric wheel. Both the infrared sensor switch and the motor are connected to the central controller. This utility model discloses an automatic toilet flushing device that automatically flushes a measured amount of water after use, saving water and eliminating the need for manual flushing, thus reducing the risk of cross-infection.
[0004] This technology cannot control the amount of water used for flushing based on the user's urination and defecation habits when implementing automatic flushing, thus it is lacking in water conservation. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic flushing control device for toilets.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic flushing control device for a toilet, comprising:
[0007] A control device, comprising a control housing, the bottom of which is provided with mutually symmetrical connecting rods;
[0008] A socket assembly, the socket assembly including a socket ring, a connecting rod located at one end of the control device and a connecting ring being fixedly sleeved together, and a guide ring being provided on the top of one side of the socket ring;
[0009] A drive assembly, the drive assembly including a support plate, the support plate having a disk on one side;
[0010] An adjustment assembly, comprising an electric telescopic rod, the top of which is provided with a guide block extending through to the inside of a guide ring.
[0011] Preferably, the top of the control box is embedded with button one and button two, with button two located at the top of the socket ring.
[0012] Preferably, a connecting plate is fixedly installed on the surface of the sleeve ring, the connecting plate is located at the bottom of the abutment plate and is in contact with the abutment plate, and the top of the abutment plate is fixedly connected to the guide ring.
[0013] Preferably, a shaft extending through to the other side of the support plate is fixedly installed inside the disk, and the shaft and the support plate are rotatably connected by bearings.
[0014] Preferably, a rotating motor is provided on the other side of the support plate, and a fixing member is fixedly sleeved on the surface of the rotating motor. The fixing member and the support member are fixedly connected to each other, and the output end of the rotating motor is fixedly sleeved to the shaft through a coupling.
[0015] Preferably, a top block is fixedly installed at the output end of the electric telescopic rod, one end of the top block is fixedly connected to the guide block, and the guide block and the guide ring are slidably connected to each other.
[0016] Preferably, a guide rod is fixedly installed at the bottom of the top block, extending into the interior of the disc, and the disc has a guide hole for sliding with the guide rod. A fixing member two, which is fixedly connected to the disc, is fixedly installed on the surface of the electric telescopic rod.
[0017] Preferably, the control component includes a tray, which is fixedly connected to a support plate, and an infrared sensor and a central controller are fixedly mounted on the top of the support plate.
[0018] In summary, this utility model has the following beneficial effects:
[0019] 1. This utility model uses an infrared sensor to monitor the duration of human use to control and adjust the flushing volume: when a person stays in front of the toilet for less than three minutes, the infrared sensor transmits a signal to the central controller, which controls the electric telescopic rod to retract, bringing the guide block closer to the disc, reducing the range of movement of the abutment plate and connecting rod, thus achieving a small flush for urination; if the stay time exceeds five minutes, the central controller instructs the electric telescopic rod to extend, the guide block to move away from the disc, and the range of movement of the abutment plate and connecting rod to increase, triggering a large flush for defecation; this structure accurately judges the usage scenario based on the stay time, eliminating the need for manual switching buttons, improving flushing efficiency, and avoiding water waste caused by misoperation.
[0020] 2. This utility model supports a manual flushing mode: switching is achieved by blocking the infrared sensor with an external structure, providing flexible operation and compatibility with traditional usage habits. It also ensures system availability in case of sensor failure or special needs. Simultaneously, this design achieves precise water saving, features a simple and compact structure, and both the rotating motor and the electric telescopic rod are waterproof and installed on the top of the water tank, ensuring operational reliability. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is an enlarged schematic diagram of the socket assembly, drive assembly, and adjustment assembly of this utility model;
[0023] Figure 3 This is an exploded and enlarged schematic diagram of the socket assembly of this utility model;
[0024] Figure 4 This is an exploded and enlarged schematic diagram of the drive component and adjustment component of this utility model.
[0025] Figure label:
[0026] 1. Control device; 101. Control box; 102. Button 1; 103. Button 2; 104. Linkage rod;
[0027] 2. Socket assembly; 201. Socket ring; 202. Connecting plate; 203. Abutment plate; 204. Guide ring;
[0028] 3. Drive assembly; 301. Support plate; 302. Disc; 303. Shaft; 304. Rotary motor; 305. Fixing component one;
[0029] 4. Adjustment assembly; 401. Electric telescopic rod; 402. Fixing component two; 403. Top block; 404. Guide block; 405. Guide rod; 406. Guide hole;
[0030] 5. Control components; 501. Tray; 502. Infrared sensor; 503. Central controller. Detailed Implementation
[0031] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0032] The specific embodiments of this utility model are described below with reference to the accompanying drawings:
[0033] refer to Figures 1-4 An automatic flushing control device for a toilet, comprising:
[0034] Control device 1, the control device 1 includes a control box 101, and the bottom of the control box 101 is provided with mutually symmetrical connecting rods 104.
[0035] The sleeve assembly 2 includes a sleeve ring 201. The connecting rod 104 located at one end of the control device 1 is fixedly sleeved with the connecting ring. A guide ring 204 is provided on the top of one side of the sleeve ring 201.
[0036] Drive component 3, which includes a support plate 301 and a disk 302 on one side of the support plate 301;
[0037] Adjustment component 4 includes an electric telescopic rod 401, and the top of the electric telescopic rod 401 is provided with a guide block 404 that extends through to the inside of the guide ring 204.
[0038] Specifically, this invention uses an infrared sensor 502 to monitor the duration of human use to control and adjust the flushing volume: when a person stays in front of the toilet for less than three minutes, the infrared sensor 502 transmits a signal to the central controller 503, which controls the electric telescopic rod 401 to retract, causing the guide block 404 to approach the disc 302. This reduces the range of movement of the abutment plate 203 and the connecting rod 104, resulting in a small flush for urination. If the stay exceeds five minutes, the central controller 503 instructs the electric telescopic rod 401 to extend, the guide block 404 to move away from the disc 302, and the range of movement of the abutment plate 203 and the connecting rod 104 to increase, triggering a large flush for defecation. This structure accurately determines the usage scenario based on the stay time, eliminating the need for manual button switching, improving flushing efficiency, and avoiding water waste caused by misoperation.
[0039] The top of the control box 101 is embedded with button 102 and button 2 103 respectively. Button 2 103 is located on the top of the socket ring 201. The corresponding water output of button 102 and button 2 103 can be intuitively seen from their own size. The control device 1 is a well-known existing technology and will not be described in detail here. The movement of the socket ring 201 will drive button 2 103 to move through the connecting rod 104.
[0040] A connecting plate 202 is fixedly installed on the surface of the sleeve ring 201. The connecting plate 202 is located at the bottom of the abutment plate 203 and is in contact with the abutment plate 203. The top of the abutment plate 203 is fixedly connected to the guide ring 204. The longitudinal movement of the abutment plate 203 will drive the connecting plate 202 and the sleeve ring 201 to move, thereby realizing the movement of the corresponding connecting rod 104 and the control of the water output.
[0041] Inside the disc 302, a shaft 303 is fixedly installed, extending through to the other side of the support plate 301. The shaft 303 and the support plate 301 are rotatably connected by bearings. The rotation of the shaft 303 will drive the disc 302 to rotate. The support plate 301 supports the shaft 303 through bearings and cooperates with it to rotate smoothly.
[0042] On the other side of the support plate 301, there is a rotating motor 304. A fixing member 305 is fixedly sleeved on the surface of the rotating motor 304. The fixing member 305 and the support member are fixedly connected to each other. The output end of the rotating motor 304 is fixedly sleeved to the shaft 303 through a coupling. The operation of the rotating motor 304 will drive the shaft 303 to rotate, and the fixing member 305 will support and fix the rotating motor 304.
[0043] A top block 403 is fixedly installed at the output end of the electric telescopic rod 401. One end of the top block 403 is fixedly connected to the guide block 404. The guide block 404 and the guide ring 204 are slidably connected to each other. The operation of the electric telescopic rod 401 will drive the top block 403 and the guide block 404 to move away from or towards the disc 302.
[0044] A guide rod 405 is fixedly installed at the bottom of the top block 403, extending through the interior of the disc 302. The disc 302 has a guide hole 406 for sliding with the guide rod 405. A fixing member 402 is fixedly installed on the surface of the electric telescopic rod 401 and is fixedly connected to the disc 302. The top block 403 will be guided by movement through the sliding connection between the guide rod 405 and the guide hole 406.
[0045] The control component 5 includes a tray 501, which is fixedly connected to a support plate 301. An infrared sensor 502 and a central controller 503 are fixedly mounted on the top of the support plate 301. The tray 501 supports and fixes the infrared sensor 502 and the central controller 503. The infrared sensor 502 performs infrared detection in conjunction with the approach and departure of a human body. The central controller 503, in conjunction with the detection and monitoring of the infrared sensor 502, issues commands to the rotating motor 304.
[0046] Brief description of usage: In the flushing control of this invention, the central controller 503 sends a command to the rotary motor 304 to operate, driving the shaft 303 and the disc 302 to rotate. The disc 302 drives the electric telescopic rod 401 and the guide block 404 to move in a circular motion around the shaft 303. The guide block 404 exerts a longitudinal force on the guide ring 204 through a sliding connection, thereby driving the abutment plate 203, connecting plate 202, sleeve ring 201, and connecting rod 104 to achieve longitudinal displacement. The rotary motor 304, commanded by the central controller 503, only drives the shaft 303 to rotate one revolution, and completes one flushing operation through the connecting rod 104.
[0047] The flushing volume is controlled by monitoring the duration of human use via infrared sensor 502: when a person stays in front of the toilet for less than three minutes, the infrared sensor 502 transmits a signal to the central controller 503, which controls the electric telescopic rod 401 to retract, causing the guide block 404 to move closer to the disc 302, reducing the range of movement of the abutment plate 203 and the connecting rod 104, thus achieving a small flush for urination; if the stay exceeds five minutes, the central controller 503 instructs the electric telescopic rod 401 to extend, the guide block 404 to move away from the disc 302, and the range of movement of the abutment plate 203 and the connecting rod 104 to increase, triggering a large flush for defecation.
[0048] In addition, the system supports a manual flushing mode: this can be switched by blocking the infrared sensor 502 with an external structure. This design achieves precise water saving, has a simple and compact structure, and both the rotating motor 304 and the electric telescopic rod 401 are waterproof and installed on the top of the water tank to ensure operational reliability.
[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An automatic flushing control device for a toilet, characterized in that, include: Control device (1), the control device (1) includes a control box (101), and the bottom of the control box (101) is provided with mutually symmetrical connecting rods (104); The socket assembly (2) includes a socket ring (201), and a connecting rod (104) located at one end of the control device (1) is fixedly connected to the connecting ring. A guide ring (204) is provided on the top of one side of the socket ring (201). A drive assembly (3) includes a support plate (301) and a disk (302) is provided on one side of the support plate (301); Adjustment assembly (4), the adjustment assembly (4) includes an electric telescopic rod (401), the top of the electric telescopic rod (401) is provided with a guide block (404) that extends through to the inside of the guide ring (204).
2. The automatic flushing control device for a toilet according to claim 1, characterized in that: The top of the control box (101) is respectively embedded with button one (102) and button two (103), and button two (103) is located on the top of the socket ring (201).
3. The automatic flushing control device for a toilet according to claim 1, characterized in that: A connecting plate (202) is fixedly installed on the surface of the sleeve ring (201). The connecting plate (202) is located at the bottom of the abutment plate (203) and is in contact with the abutment plate (203). The top of the abutment plate (203) is fixedly connected to the guide ring (204).
4. The automatic flushing control device for a toilet according to claim 1, characterized in that: The disc (302) has a fixedly installed shaft (303) that extends through to the other side of the support plate (301). The shaft (303) and the support plate (301) are rotatably connected to each other by bearings.
5. An automatic flushing control device for a toilet according to claim 4, characterized in that: A rotating motor (304) is provided on the other side of the support plate (301). A fixing member (305) is fixedly sleeved on the surface of the rotating motor (304). The fixing member (305) and the support member are fixedly connected to each other. The output end of the rotating motor (304) is fixedly sleeved to the shaft (303) through a coupling.
6. An automatic flushing control device for a toilet according to claim 1, characterized in that: The output end of the electric telescopic rod (401) is fixedly installed with a top block (403), one end of the top block (403) is fixedly connected to the guide block (404), and the guide block (404) is slidably connected to the guide ring (204).
7. An automatic flushing control device for a toilet according to claim 6, characterized in that: The bottom of the top block (403) is fixedly installed with a guide rod (405) that penetrates into the interior of the disc (302). The disc (302) has a guide hole (406) for sliding with the guide rod (405). The surface of the electric telescopic rod (401) is fixedly installed with a fixing member (402) that is fixedly connected to the disc (302).
8. An automatic flushing control device for a toilet according to claim 1, characterized in that: The control component (5) includes a tray (501) and a support plate (301) which are fixedly connected to each other. An infrared sensor (502) and a central controller (503) are fixedly installed on the top of the support plate (301).