Automatically-closed floor drain
By designing an automatically closing floor drain and using a motor and deceleration mechanism to realize automatic control of the water inlet, the problem of odor escaping and cockroaches entering the existing floor drain is solved, and the convenience and economy of the equipment are improved through the power generation function.
Patent Information
- Application Number
- CN202411874287.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-01-24
AI Technical Summary
The existing floor drain has problems such as odor and cockroaches entering the room, and the sealing property becomes worse after use for a long time, resulting in inconvenience and hygiene problems.
An automatic closing floor drain is designed, which uses a motor, deceleration mechanism and detection and control circuits to automatically open the water inlet when water accumulates on the ground, automatically fully close the water inlet after the water is discharged, and generate electricity through water flow power to power the battery. Charge.
It effectively prevents the odor in the sewer from escaping and cockroaches from entering the room, ensuring household hygiene. It also reduces the need for external power supply and charging through the power generation function, saving costs.
Smart Images
Figure CN119352630A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of household sanitary equipment, in particular to an automatically closed floor drain. Background Art
[0002] A floor drain is a household sanitary device, which is mainly installed on the floor of the bathroom, kitchen, etc. in the home, so that the accumulated water on the ground can enter the sewer pipe in the home through the floor drain and be discharged into the sewage pipe in the community.
[0003] There are generally two types of existing floor drains, one is a floor drain with a grid cover, and the other is a floor drain with a float. The grid cover floor drain cannot effectively seal the ground and the sewer pipe due to the grid holes of the grid cover. Therefore, there is a problem that the odor in the sewer escapes and causes discomfort to the user. More importantly, the grid cover cannot prevent cockroaches in the sewer from entering the room through the grid cover, which has an adverse effect on family hygiene. When there is no water on the ground of the float floor drain, the float closes the water inlet of the floor drain under the action of gravity. When water enters the floor drain, the float floats up and the accumulated water can enter the sewer. Although the float floor drain can prevent the odor from escaping and the chance of cockroaches entering the room to a certain extent, after a long period of use, when garbage, oil, etc. adhere to the surface of the float (the water inlet of the floor drain also has the problem of garbage, oil, etc. adhering, and manual cleaning of the float surface and the water inlet of the floor drain will bring inconvenience to the user), the sealing between the float and the water inlet of the floor drain will deteriorate, and there is also the chance of odor escaping and cockroaches entering the room. Summary of the invention
[0004] In order to overcome the drawbacks of existing floor drains as described in the background due to structural limitations, the present invention provides an automatically closed floor drain which, under the joint action of relevant mechanisms, can automatically open a water inlet when water accumulates on the floor, and can automatically and fully close the water inlet after the accumulated water is drained, and can utilize the power of draining the accumulated water to generate electricity to power related electrical equipment, thereby effectively preventing odor from the sewer from escaping, cockroaches from entering the room, etc., and ensuring family hygiene.
[0005] The technical solution adopted by the present invention to solve its technical problem is: An automatically closed floor drain comprises a motor, a reduction mechanism, a shell, a cylinder, a grid cover, a battery, a fixed bin, and also has a detection circuit and a control circuit; the upper end of the cylinder is a closed structure, and a drain pipe is installed at the lower end, the outer diameter of the upper end of the cylinder is larger than the outer diameter of the drain pipe, and the upper end of the cylinder has a plurality of water inlet grooves; an impeller is installed at the lower end of the rotating shaft of the motor, the lower end of the fixed bin is installed outside the upper end of the shell of the motor, the reduction mechanism is installed on one side of the fixed bin, and the battery, the detection circuit and the control circuit are installed on the other side of the fixed bin; the upper end of the fixed bin is installed at the upper end of the cylinder body, the grid cover and the third driven gear shaft of the reduction mechanism are installed together, and the grid cover is located outside the upper end of the cylinder; the two power poles of the motor are electrically connected to the two ends of the power input of the detection circuit and the control circuit respectively, the signal output end of the detection circuit is electrically connected to the signal input end of the control circuit, and the power output end of the control circuit is electrically connected to the power input end of the motor.
[0006] Furthermore, the reduction mechanism includes a driving gear, a first driven gear, a second driven gear, and a third driven gear. The upper end of the motor's rotating shaft is located in the fixed bin, the driving gear is fixedly mounted on the upper end of the rotating shaft, and bearing seats are respectively installed on the upper and lower ends of the inner side of the fixed bin. The lower end of the shaft of the first driven gear and the upper end of the shaft of the second driven gear are respectively installed in the inner rings of the bearings of the lower and upper bearing seats, the middle shaft of the third driven gear is rotatably mounted on the upper end of the cylinder, and the upper side of the shaft of the third driven gear is located outside the upper end of the cylinder, and the upper side of the shaft of the third driven gear is installed together with the grid cover.
[0007] Furthermore, the driving gear is meshed with the first driven gear, the second driven gear is meshed with the third driven gear, the number of teeth of the driving gear and the second driven gear is consistent, the number of teeth of the first driven gear and the third driven gear is consistent, and the number of teeth of the driving gear is less than that of the first driven gear.
[0008] Furthermore, a rectangular guide tube is installed at the lower end of the shaft of the second driven gear, and a guide hole is provided at the lower end of the guide tube. A movable rod is slidably sleeved in the guide tube, and a limit plate is installed at the upper end of the movable rod. A spring is sleeved between the lower end of the limit plate and the inner side of the guide tube and on the outer side of the movable rod. An adsorption plate is installed at the lower end of the movable rod, and an electromagnet is installed at the upper end of the shaft of the first driven gear, and the electromagnet is spaced a distance from the lower end of the adsorption plate.
[0009] Furthermore, there is a limiting ring on the outer side of the upper end of the cylinder, the outer diameter of the grid cover is smaller than the outer diameter of the limiting ring, the grid cover has multiple water leakage grooves, the lower end of the grid cover, the inner side of the limiting ring and the outer side of the upper end of the cylinder are in a contact rotation state, when the grid cover does not rotate, the multiple water inlet grooves at the upper end of the cylinder and the multiple water leakage grooves of the grid cover are respectively misaligned, the grid cover and the upper end of the cylinder are in a sealed state, after the grid cover rotates, the multiple water inlet grooves at the upper end of the cylinder and the multiple water leakage grooves of the grid cover are respectively in a vertical plane up and down, and the multiple water inlet grooves and the multiple water leakage grooves are interconnected up and down.
[0010] Furthermore, the cylinder is installed at a ground drainage position and the upper ends of its limit ring and grid cover are lower than the ground height.
[0011] Furthermore, the detection circuit includes an electrically connected relay, a transistor and a probe. The probe is two metal sheets. The two probes are installed on the upper side of the limit ring at a distance and are in the same plane as the upper end of the limit ring. The first metal sheet is connected to the positive power input terminal and the control power input terminal of the relay, the second metal sheet is connected to one end of the resistor, the other end of the resistor is connected to the base of the transistor, and the collector of the transistor is connected to the negative power input terminal of the relay.
[0012] Further, the control circuit includes electrically connected relays, diodes and time-controlled switches, the positive power input terminal of the first time-controlled switch is connected to the positive power input terminal of the second time-controlled switch, the first relay and the positive control power input terminal of the second relay, the positive power output terminal of the first time-controlled switch is connected to the positive power input terminal of the first relay and the positive pole of the first diode, the cathode of the first diode is connected to the positive power input terminal of the second relay and the cathode of the second diode, the cathode of the second diode is connected to the power output terminal of the second time-controlled switch and the positive power input terminal of the third relay, the negative power input terminal and the negative control power input terminal of the first time-controlled switch are connected to the negative power input terminal and the negative control power input terminal of the second time-controlled switch, the negative power input terminal and the negative control power input terminal of the first relay, the negative power input terminal and the negative control power input terminal of the second time-controlled switch, the negative power input terminal and the negative control power input terminal of the first relay, the negative power input terminal and the negative control power input terminal of the second relay, the negative power input terminal and the negative control power input terminal of the third relay are connected.
[0013] Furthermore, an insulating tube is tightly sleeved on the outer side of the shaft of the second driven gear, and two metal ferrules are installed at a distance on the outer side of the insulating tube, and wires are installed on the inner sides of the two ferrules respectively, and the two wires are connected to the power input end of the electromagnet. A fixing seat is installed on one side of the fixed compartment, and two metal contact pieces are installed at a distance from the upper and lower front ends of the fixing seat. The inner side of one end of the contact piece and the front outer sides of the two rings are respectively rotated to electrically contact, and the two ends of the two contact pieces are electrically connected to the negative electrode of the first diode and the negative electrode of the battery respectively.
[0014] Compared with the prior art, the present invention has the following advantages: (1) The present invention is mainly used in areas with a large amount of indoor ground drainage (such as water discharged from a washing machine in the bathroom, and water discharged from a shower). Under the action of the detection circuit, when water accumulates on the ground, the control circuit will be powered on, causing the motor reduction mechanism to drive the grid cover to rotate clockwise. In this way, the multiple water inlet grooves at the upper end of the cylinder and the multiple water leakage grooves at the grid cover are respectively located in a vertical plane up and down, and the multiple water inlet grooves and the multiple water leakage grooves are interconnected up and down, so that the accumulated water can enter the sewer and be discharged; when the accumulated water is discharged, the control circuit will be powered on, causing the motor reduction mechanism to drive the grid cover to rotate clockwise. The control circuit will drive the grid cover to rotate counterclockwise through the speed reduction mechanism, so that the multiple water inlet grooves at the upper end of the cylinder and the multiple water leakage grooves of the grid cover are offset respectively, and the grid cover and the cylinder are in a sealed state, which effectively prevents the odor in the sewer from escaping and cockroaches from entering the room, thereby ensuring family hygiene; (2) In the present invention, before the water on the ground enters the sewer, the water flow will impact the impeller at the lower end of the motor's rotating shaft to rotate, and then the generator generates electricity to charge the battery. In this way, the present invention does not require an external power supply or charging of the battery, which saves costs and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention.
[0017] Figure 2 It is a planar structural diagram of the motor, reduction mechanism, cylinder, grid cover, storage battery, fixed bin, detection circuit and control circuit of the present invention.
[0018] Figure 3 It is a schematic diagram of the partial planar structure of the speed reduction mechanism of the present invention.
[0019] Figure 4 It is a schematic diagram of the planar structure of a part of the cylinder of the present invention.
[0020] Figure 5 Circuit diagram of the present invention. DETAILED DESCRIPTION
[0021] Figure 1 , 2, 3, 4, and 5, an automatically closed floor drain comprises a motor M (whose outer shell is made of stainless steel), a reduction mechanism, a cylinder 1 (plastic), a grid cover 2 (plastic), a battery G1, a fixed bin 3 (stainless steel), and a detection circuit 4 and a control circuit 5; the upper end of the cylinder 1 is a closed structure, and a drainage pipe 101 (stainless steel, the lower end is sealed and connected to the sewer pipe) is welded to the lower end, which is interconnected with the interior thereof; the outer diameter of the upper end of the cylinder 1 is larger than the outer diameter of the lower end; the upper end of the cylinder 1 is annularly distributed with a plurality of water inlet grooves 102 at a certain interval, and the middle part of the upper end of the cylinder 1 has an opening, and a sealing device is installed in the opening. There is a bearing 103 (the bearing is made of stainless steel, and a water seal ring is installed between the inner and outer rings of the upper and lower ends of the bearing to prevent water leakage from the bearing); an impeller 6 (stainless steel) is welded to the lower end of the motor shaft, and an axial hole 31 is provided in the middle of the lower end of the fixed bin 3. The lower end of the fixed bin 3 is sealed and installed on the outside of the upper end of the housing of the waterproof motor M through bolts, the reduction mechanism is installed on one side of the fixed bin 3, and the upper end of the fixed bin is installed on the upper end of the cylinder body. The battery G1, the detection circuit 4 and the control circuit 5 are installed in the component box 32 on the other side of the fixed bin; the grid cover plate 2 and the third driven gear shaft of the reduction mechanism are installed together, and the grid cover plate 2 is located outside the upper end of the cylinder body 1.
[0022] Figure 1 , 2, 3, 4, and 5, the reduction mechanism includes a driving gear 71, a first driven gear 72, a second driven gear 73, and a third driven gear 74. The upper end of the rotating shaft of the motor M is located outside the upper end of the housing, and the upper end of the rotating shaft enters the fixed bin 3 through the shaft hole at the lower end of the fixed bin 3. The driving gear 71 is fixedly mounted on the upper end of the rotating shaft. A bearing seat 33 is respectively installed at the upper and lower parts of the inner right end of the fixed bin 3 by bolts. There is an axial hole A in the middle of the upper end of the fixed bin 3, and a bearing A34 is sealed and installed in the axial hole A (the bearing A is made of stainless steel, and the upper and lower ends of the bearing A are A water seal ring A is installed between the inner and outer rings to prevent water leakage of the bearing A. The lower end of the shaft in the middle of the first driven gear 72 and the upper end of the shaft in the middle of the second driven gear 73 are respectively tightly sleeved in the inner rings of the bearings of the lower and upper bearing seats 33. The upper end of the shaft in the middle of the third driven gear 74 is tightly sleeved in the inner ring of the upper end bearing A34 of the fixed bin and the inner ring of the barrel bearing 103. The upper side of the shaft of the third driven gear 74 is located outside the middle of the upper end of the barrel 1. The upper side of the shaft of the third driven gear 74 and the middle of the grid cover 2 are fixed together by nuts. The driving gear 71 meshes with the first driven gear 72, and the second driven gear 73 meshes with the third driven gear 74. The number of teeth of the driving gear 71 and the second driven gear 73 is the same, the number of teeth of the first driven gear 72 and the third driven gear 74 is the same, and the number of teeth of the driving gear 71 is less than that of the first driven gear 72. A rectangular hollow guide tube 731 is welded to the lower end of the shaft in the middle of the second driven gear, and a guide hole is provided in the middle of the lower end of the guide tube 731. A movable rod 732 is slidably sleeved in the guide tube, and a limit plate 733 with an outer diameter smaller than the inner diameter of the guide tube and larger than the inner diameter of the guide hole is welded to the upper end of the movable rod 732. A spring 735 is sleeved between the lower end of the limit plate and the inner side of the guide tube and on the outer side of the movable rod. A steel adsorption plate 734 is welded to the lower end of the movable rod 732, and an electromagnet DC is fixedly installed on the upper end of the shaft in the middle of the first driven gear, and the upper end suction surface of the electromagnet DC and the lower end of the adsorption plate 734 are spaced apart by a distance (2 mm). The outer side of the upper end of the cylinder 1 has a limit ring 104 whose end height is higher than the upper end of the cylinder. The outer diameter of the grid cover 2 is slightly smaller than the outer diameter of the limit ring 104 at the upper end of the cylinder. The grid cover is annularly distributed with multiple leakage grooves 21 at a certain interval. The lower end of the grid cover 2 and the inner side of the limit ring 104 and the outer side of the upper end of the cylinder 1 are in a contact rotation state. When the motor does not drive the grid cover 2 to rotate, the multiple water inlet grooves 102 at the upper end of the cylinder 1 and the multiple leakage grooves 21 of the grid cover are respectively misaligned, and the grid cover 2 and the upper end of the cylinder 1 are in a sealed state. When the motor drives the grid cover 2 to rotate a certain angle, the multiple water inlet grooves 102 at the upper end of the cylinder 1 and the multiple leakage grooves 21 of the grid cover are respectively in a vertical plane up and down, and the multiple water inlet grooves 102 and the multiple leakage grooves 21 are interconnected up and down.An insulating tube 736 is tightly sleeved on the outer side of the middle part of the shaft in the middle part of the second driven gear. Two copper metal annular ferrules 737 are tightly sleeved on the outer side of the insulating tube 736 at intervals. A wire is welded on the inner side of each of the two ferrules 737 (the wire is located in the groove of the insulating tube, and the height of the wire is lower than the height of the outer side of the ferrule). The two wires are connected to the power input end of the electromagnet DC. An insulating fixing seat 738 is fixedly installed on the right side of the fixed chamber. Two copper contact pieces 739 are hot-melt welded at intervals on the front side of the fixing seat. The inner side of the left end of the contact piece 739 and the front outer side of the two ferrules 737 are rotated to electrically contact each other. The right side of the two contact pieces 739 are connected to the negative electrode of the diode VD and the negative electrode of the battery G1 through wires (the wire connected to the motor enters the fixed chamber through the opening at the lower end of the fixed chamber, and the opening is sealed with sealant). The cylinder 1 is installed at the indoor ground drainage position and its limit ring 104 and the upper end of the grid cover 2 are slightly lower than the ground height.
[0023] Figure 1 , 2As shown in Figures 3, 4 and 5, the detection circuit includes a relay J1, a transistor Q1 and a probe T connected via circuit board wiring. The probe T is two copper metal sheets. The two probes T are hot-melt bonded to the upper side of the limit ring 104 at a distance of (2 mm) and are in the same plane as the upper end of the limit ring 104. The wires connected to the lower sides of the two probes T enter the fixed bin through the openings on the limit ring 104 and the cylinder 1 and the fixed bin 3 (the openings are sealed with sealant). The first metal sheet T is connected to the positive power input terminal and the control power input terminal of the relay J1, the second metal sheet T is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the base of the transistor Q1, and the collector of the transistor Q1 is connected to the negative power input terminal of the relay J1. The control circuit includes relays J, J2, J3, diodes VD, VD1 and time-controlled switches T1 and T2 connected by circuit board wiring. The positive power input terminal 1 pin of the first time-controlled switch T1 is connected to the positive power input terminal 1 pin of the second time-controlled switch T2, the positive control power input terminal of the first relay J and the second relay J3, the positive power output terminal 5 pin of the first time-controlled switch T1 is connected to the positive power input terminal of the first relay J and the positive pole of the first diode VD, the cathode of the first diode VD is connected to the positive power input terminal of the second relay J2, and the second The cathode of diode VD1 is connected, the cathode of the second diode VD1 is connected to pin 5 of the power output terminal of the second time-controlled switch T2 and the positive power input terminal of the third relay J3, the negative power input terminal 2 pin and the negative control power input terminal 4 pin of the first time-controlled switch T1 and the negative power input terminal 2 pin and the negative control power input terminal 4 pin of the second time-controlled switch T2, the negative power input terminal and the negative control power input terminal of the first relay J, the negative power input terminal of the second relay J2, and the negative power input terminal and the negative control power input terminal of the third relay J3 are connected. The two normally open contact terminals of relay J are connected to the positive and negative power input terminals of motor M through wires, respectively; the two normally open contact terminals of relay J3 are connected to the positive and negative power input terminals of motor M through wires; the positive pole of battery G1 and the positive power input terminal of motor M are connected to one control power input terminal and one normally closed contact terminal of relay J2 through wires; the negative pole of battery G1 and the negative power input terminal of motor M are connected to the other control power input terminal and the other normally closed contact terminal of relay J2 through wires; the normally open contact terminal of relay J1 is connected to pin 3 of time-controlled switch T1 through wires; the normally closed contact terminal of relay J1 is connected to pin 3 of time-controlled switch T2 through wires; the negative pole of diode VD and the negative pole of battery G1, the negative pole of diode VD1 and the negative pole of battery G1 and the two power input terminals of electromagnet DC are connected through wires. Figure 5Among them, the resistance value of resistor R1 is 4.7K; battery G1 is a lithium battery of model 12V / 5Ah (pre-charged); transistor Q1 is an NPN transistor of model 9013; electromagnet DC is an electromagnet of power 10W; relays J, J1, J2, and J3 are of DC12V; diodes VD and VD1 are of 1N4007; motor M is a DC motor of power 15W (its stator is a permanent magnet, when the rotor coil of the motor is energized, the motor shaft rotates to output power; when the rotor coil of the motor is de-energized and the motor shaft rotates, the electronic rotor coil outputs electrical energy); time-controlled switches T1 and T2 are finished control time relays of model Y27F-MOS, which have two power input terminals, one power output terminal, two control power input terminals, and four setting buttons. By operating the four setting buttons respectively, the time for the power output terminal to output power can be set. Each time a trigger signal is input into the two control power input terminals, the power output terminal outputs power for a certain time.
[0024] Figure 1 , 2As shown in Figures 3, 4, and 5, the present invention is mainly used in areas with a large amount of indoor ground drainage (such as water discharged from a washing machine in a bathroom, and water discharged from a shower). When there is no water on the ground, the resistance between the two probes T is infinite because there is no water submerged. The 12V power supply output by the battery G1 enters the base of the transistor Q1 through the resistor R1 to reduce the voltage and limit the current, and the transistor Q1 will not be turned on, and the relay J1 will not be energized and attracted. Then, the 3rd pin of the time-controlled switch T1 will not be energized, and its 5th pin will not output power, and the relays J, J2, the electromagnet DC, the motor M, etc. will not be energized (the grid cover 2 will not rotate either). When there is water on the ground, the resistance value between the two probes T becomes smaller due to being submerged in water. The 12V power supply output by the battery G1 enters the base of the transistor Q1 higher than 0.7V through the resistor R1 to reduce the voltage and limit the current. The transistor Q1 will turn on the collector to output a low level and enter the negative power input terminal of the relay J1. The relay J1 is energized to attract the control power input terminal and the normally open contact terminal to close. Subsequently, the 3rd pin of the time control switch T1 is energized to input the positive control signal. The 5th pin of the time control switch T1 outputs a 3-second power supply (the time is adjustable) and enters the positive power input terminal of the relay J. The relay J is energized to attract the control power input terminal and the normally open contact terminal to close. The positive and negative power input terminals of the motor M are energized and its shaft rotates. At the same time, the power output from the 5th pin of the time control switch T1 will also be unidirectionally conducted through the diode VD to enter the electromagnet DC and the positive power input terminal of the relay J2 (the diode VD1 has a reverse cutoff effect, and the power will not enter the positive power input terminal of the relay J3). The relay J2 is energized to attract its The two control power input terminals and the two normally closed contact terminals are open, so that the two power input terminals of the motor M and the two poles of the battery G1 are open, and the power output by the battery G1 enters the positive and negative power input terminals of the motor M through the two control power input terminals and the two normally open contact terminals of the relay J. After the motor M is energized and its shaft rotates (the electromagnet DC is energized and the adsorption plate 734 is attracted downward, so that the first driven gear and the second driven gear will be attracted together and rotate synchronously), the driving gear 71 drives the first driven gear 72 and the second driven gear 73 to rotate counterclockwise (deceleration increases torque), the second driven gear 73 drives the third driven gear 74 to rotate clockwise (deceleration increases torque), and the third driven gear 74 drives the grid cover plate 2 to rotate clockwise at a certain angle and stop, and the multiple water inlet grooves 102 at the upper end of the cylinder 1 and the multiple water leakage grooves 21 of the grid cover plate are respectively located in a vertical plane up and down, and the multiple water inlet grooves 102 and the multiple water leakage grooves 21 are interconnected up and down, and the accumulated water on the ground will enter the sewer.After 3 seconds, the 5th foot of the time-controlled switch T1 will stop outputting power to the power input terminals of the relays J, J2 and the electromagnetic valve DC. The relay J loses power and no longer attracts the control power input terminal and the normally open contact terminal, and the positive and negative power input terminals of the motor M lose power. The electromagnetic valve DC loses power, and under the elastic force of the spring, the adsorption plate moves upward and the electromagnet DC is pulled apart, so that when the motor M shaft rotates later, it no longer drives the grid cover to rotate. The relay J2 loses power and no longer attracts its control power input terminal and the normally closed contact terminal to close, and the positive pole of the battery G1 is connected to the positive pole of the motor M through one of the control power input terminals and one of the normally closed contact terminals of the relay J2, and the positive pole of the battery G1 is connected to the negative pole of the motor M through another control power input terminal and another normally closed contact terminal of the relay J2. When the water flow entering the cylinder impacts the impeller 6 to rotate, the motor M will send out a power supply of about 12V to enter the two ends of the battery G1 to charge the battery G1 (the standby current of the present invention is about 5mA at ordinary times, and the power consumption is extremely low). In the present invention, when the second driven gear rotates, the two rings 737 follow and the contact piece 739 does not move. In this way, the 12V power supply enters the ring through the contact piece and then enters the power input terminal of the electromagnet DC.
[0025] Figure 1 , 2As shown in Figures 3, 4, and 5, after the local surface water is drained (during the drainage process, the water flow will impact the impeller 6 to rotate, and the rotor coil on the shaft of the motor M will rotate, thereby sending out a DC power supply of about 12V to enter the battery G1 to charge the battery G1), the resistance value between the two probes T is infinite because there is no water flooding again. The 12V power supply output by the battery G1 enters the base of the transistor Q1 through the resistor R1 to reduce the voltage and limit the current, and the transistor Q1 will not be turned on, and the relay J1 will not be energized and attracted. Then, the 3rd pin of the time-controlled switch T1 will not be energized and its 5th pin will not output power, and the positive and negative poles of the relays J, J2, the electromagnet DC, and the motor M will not be energized (the grid cover 2 will not rotate either). After the relay J1 loses power, its control power input terminal and normally closed contact terminal are closed. Subsequently, the 3rd pin of the time control switch T2 is energized and inputs the positive control signal. The 5th pin of the time control switch T2 outputs a 3-second power supply (time is adjustable) to the positive power input terminal of the relay J3. The relay J3 is energized and its control power input terminal and normally open contact terminal are closed. The negative and positive power input terminals of the motor M are energized and its shaft rotates. At the same time, the power output from the 5th pin of the time control switch T2 will also be unidirectionally conducted through the diode VD1 and enter the electromagnetic The electromagnet DC and the positive power input terminal of the relay J2 (the diode VD has a reverse cutoff effect, and the power will not enter the positive power input terminal of the relay J), the relay J2 is energized to attract its two control power input terminals and two normally closed contact terminals to open the circuit, so that the two power input terminals of the motor M and the two poles of the battery G1 are open, and the power output by the battery G1 enters the negative and positive power input terminals of the motor M through the two control power input terminals and two normally open contact terminals of the relay J3. After the motor M is energized and its shaft rotates (the electromagnet DC is energized to attract the adsorption plate 734 downward, so that the first driven gear and the second driven gear will be attracted together and rotate synchronously), the driving gear 71 drives the first driven gear 72 and the second driven gear 73 to rotate clockwise, and the second driven gear 73 drives the third driven gear 74 to rotate counterclockwise (deceleration increases torque), and the third driven gear 74 drives the grid cover plate 2 to rotate counterclockwise at a certain angle to stop and return to the initial state, and the multiple water inlet grooves 102 at the upper end of the cylinder 1 and the multiple water leakage grooves 21 of the grid cover plate They are misaligned respectively, and the grid cover 2 and the upper end of the cylinder 1 are in a sealed state; after 3 seconds, pin 5 of the time-controlled switch T2 will stop outputting power to the relays J3, J2 and the power input terminals of the solenoid valve DC, and the relay J2 loses power and no longer attracts the control power input terminal and the normally closed contact terminal to close, and the negative and positive power input terminals of the motor M lose power; the solenoid valve DC loses power, and under the elastic force of the spring, the adsorption plate moves upward and the distance between the electromagnet DC is pulled apart, preparing for the motor to control the grid cover after detecting water on the ground next time.
[0026] Figure 1 , 2As shown in Figures 3, 4 and 5, through the above, when water accumulates on the ground, the control circuit of the present invention will be powered on and work, so that the motor reduction mechanism drives the grid cover to rotate clockwise, so that the accumulated water can enter the sewer and be discharged; when the accumulated water is discharged, the control circuit will drive the grid cover to rotate counterclockwise through the reduction mechanism to return to the initial position, so that the multiple water inlet grooves at the upper end of the cylinder and the multiple water leakage grooves of the grid cover are respectively misplaced, and the grid cover and the cylinder are in a sealed state, which effectively prevents the odor in the sewer from escaping and cockroaches from entering the room, etc., thereby ensuring family hygiene; before the accumulated water on the ground enters the sewer, the water flow will impact the impeller 6 at the lower end of the rotating shaft of the motor M to rotate, and then the motor M is converted into a generator to generate electrical energy to charge the battery G1. In this way, the present invention does not require an external power supply or charging of the battery, which saves costs and is more convenient to use.
[0027] The above content illustrates the basic principle and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.
[0028] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An automatically closed floor drain, comprising a motor, a speed reduction mechanism, a housing, a cylinder, a grid cover, a battery, and a fixed compartment, characterized in that: It also has a detection circuit and a control circuit; the upper end of the cylinder is a closed structure, and a drain pipe is installed at the lower end. The outer diameter of the upper end of the cylinder is larger than the outer diameter of the drain pipe, and the upper end of the cylinder has multiple water inlet grooves; an impeller is installed at the lower end of the motor's rotating shaft, the lower end of the fixed bin is installed outside the upper end of the motor housing, the reduction mechanism is installed on one side of the fixed bin, and the battery, the detection circuit and the control circuit are installed on the other side of the fixed bin; the upper end of the fixed bin is installed at the upper end of the cylinder body, the grid cover plate and the third driven gear shaft of the reduction mechanism are installed together, and the grid cover plate is located outside the upper end of the cylinder; the two power poles of the motor are electrically connected to the two ends of the power input of the detection circuit and the control circuit respectively, the signal output end of the detection circuit is electrically connected to the signal input end of the control circuit, and the power output end of the control circuit is electrically connected to the power input end of the motor.
2. An automatically closed floor drain according to claim 1, characterized in that: The reduction mechanism includes a driving gear, a first driven gear, a second driven gear, and a third driven gear. The upper end of the motor's rotating shaft is located in the fixed bin, the driving gear is fixedly installed on the upper end of the rotating shaft, and bearing seats are respectively installed on the upper and lower ends of the inner side of the fixed bin. The lower end of the shaft of the first driven gear and the upper end of the shaft of the second driven gear are respectively installed in the inner rings of the bearings of the lower and upper bearing seats, the middle shaft of the third driven gear is rotatably installed on the upper end of the cylinder, and the upper side of the shaft of the third driven gear is located outside the upper end of the cylinder, and the upper side of the shaft of the third driven gear is installed together with the grid cover.
3. The automatically closed floor drain according to claim 1, characterized in that: The driving gear meshes with the first driven gear, the second driven gear meshes with the third driven gear, the driving gear and the second driven gear have the same number of teeth, the first driven gear and the third driven gear have the same number of teeth, and the driving gear has less teeth than the first driven gear.
4. The automatically closed floor drain according to claim 1, characterized in that: A rectangular guide tube is installed at the lower end of the shaft rod of the second driven gear, and a guide hole is provided at the lower end of the guide tube. A movable rod is slidably sleeved in the guide tube, and a limit plate is installed at the upper end of the movable rod. A spring is sleeved between the lower end of the limit plate and the inner side of the guide tube and the outer side of the movable rod, and an adsorption plate is installed at the lower end of the movable rod. An electromagnet is installed at the upper end of the shaft rod of the first driven gear, and the electromagnet is spaced a distance from the lower end of the adsorption plate.
5. The automatically closed floor drain according to claim 1, characterized in that: There is a limiting ring on the outer side of the upper end of the cylinder, the outer diameter of the grid cover is smaller than the outer diameter of the limiting ring, the grid cover has multiple leakage grooves, the lower end of the grid cover, the inner side of the limiting ring and the outer side of the upper end of the cylinder are in a contact rotation state, when the grid cover does not rotate, the multiple water inlet grooves on the upper end of the cylinder and the multiple leakage grooves on the grid cover are respectively misaligned, the grid cover and the upper end of the cylinder are in a sealed state, after the grid cover rotates, the multiple water inlet grooves on the upper end of the cylinder and the multiple leakage grooves on the grid cover are respectively in a vertical plane up and down, and the multiple water inlet grooves and the multiple leakage grooves are interconnected up and down.
6. The automatically closed floor drain according to claim 1, characterized in that: The cylinder is installed at the ground drainage position and the upper ends of its limit ring and grid cover are lower than the ground height.
7. The automatically closed floor drain according to claim 1, characterized in that: The detection circuit includes an electrically connected relay, a transistor and a probe. The probe is two metal sheets. The two probes are installed on the upper side of the limit ring at a distance and are in the same plane as the upper end of the limit ring. The first metal sheet is connected to the positive power input terminal and the control power input terminal of the relay, the second metal sheet is connected to one end of the resistor, the other end of the resistor is connected to the base of the transistor, and the collector of the transistor is connected to the negative power input terminal of the relay.
8. The automatically closed floor drain according to claim 1, characterized in that: The control circuit includes an electrically connected relay, a diode and a time-controlled switch. The positive power input terminal of the first time-controlled switch is connected to the positive power input terminal of the second time-controlled switch, the first relay and the positive control power input terminal of the second relay. The positive power output terminal of the first time-controlled switch is connected to the positive power input terminal of the first relay and the positive pole of the first diode. The cathode of the first diode is connected to the positive power input terminal of the second relay and the cathode of the second diode. The cathode of the second diode is connected to the power output terminal of the second time-controlled switch and the positive power input terminal of the third relay. The negative power input terminal and the negative control power input terminal of the first time-controlled switch are connected to the negative power input terminal and the negative control power input terminal of the second time-controlled switch, the negative power input terminal and the negative control power input terminal of the first relay, the negative power input terminal and the negative control power input terminal of the second time-controlled switch, the negative power input terminal and the negative control power input terminal of the first relay, the negative power input terminal of the second relay, and the negative power input terminal and the negative control power input terminal of the third relay are connected.
9. The automatically closed floor drain according to claim 1, characterized in that: An insulating tube is tightly sleeved on the outer side of the shaft of the second driven gear, and two metal rings are installed at a distance on the outer side of the insulating tube, and wires are installed on the inner sides of the two rings respectively. The two wires are connected to the power input end of the electromagnet, and a fixing seat is installed on one side of the fixed warehouse, and two metal contact pieces are installed at a distance from the upper and lower front ends of the fixing seat. The inner side of one end of the contact piece and the front outer sides of the two rings are rotated to electrically contact each other, and the two ends of the two contact pieces are electrically connected to the negative pole of the first diode and the negative pole of the battery respectively.