Intelligent toilet auxiliary system for the elderly

Abstract

The application discloses an old-age toilet intelligent auxiliary system and relates to a smart home device.The technical scheme is as follows: a device box is arranged on the upper portion of a toilet water tank; a detection device is arranged on the front side of the device box; a sensor for detecting a human body is arranged on the detection device; a pressing-down assembly and a power assembly are arranged in the device box; the power assembly is used for driving the pressing-down assembly to lift and push the button; the power assembly comprises a motor, an output shaft and a cam; the output shaft is horizontally rotatably connected to the device box; the motor is used for driving the output shaft to rotate; the cam is arranged on the output shaft; the lower circumferential surface of the cam is abutted against the pressing-down assembly and is used for pushing the pressing-down assembly to move downward.The application can be used in cooperation with the current toilet device, can improve the intelligent degree of the toilet and is convenient for users to use.

Description

Technical Field

[0001] The present invention relates to the technical field of smart home devices, and more specifically, to an intelligent toilet assistance system for the elderly. Background Art

[0002] Toilets are essential bathroom products in people's daily lives. Current toilets usually have a drain valve button on the top of the water tank. After using the toilet, the user needs to bend over and lean forward slightly to press the drain valve button. For some special groups, such as elderly people with limited mobility, simple bending or leaning forward movements are quite difficult, causing certain inconveniences in use.

[0003] There is a kind of smart toilet on the market that can detect and identify the toilet situation intelligently through sensors. After the toilet is completed, it can drive the toilet to flush automatically without the user pressing the flush button. However, it cannot solve the inconvenience of using traditional toilets.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems and provide an intelligent elderly-friendly toilet, which can improve the convenience of using the toilet, make it more convenient for the elderly and people with mobility problems to use, and improve the intelligence of the toilet to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an intelligent toilet assistance system for the elderly, comprising an equipment box installed on the upper part of the toilet tank, a detection device being provided on the front side of the equipment box, and a sensor for detecting the human body being provided on the detection device; a downward pressure component and a power component are provided inside the equipment box, and the power component is used to drive the downward pressure component to lift and lower and push the button; the power component comprises a motor, an output shaft and a cam, and the output shaft is horizontally connected to the equipment box, and the motor is used to drive the output shaft to rotate; the cam is installed on the output shaft, and the lower circumference of the cam is against the downward pressure component, which is used to push the downward pressure component to move downward.

[0007] The present invention is further configured such that the downward pressure assembly includes a downward pressure rod, a downward pressure block and a downward pressure spring, the lower end of the downward pressure rod passes through the bottom of the equipment box and presses against the button of the drain valve; the downward pressure block is located at the upper part of the downward pressure rod and forms a gap with the downward pressure rod; the lower part of the downward pressure rod is supported on the bottom of the equipment box by the downward pressure spring, and the upper part presses against the lower circumferential surface of the cam.

[0008] The present invention is further configured such that a liftable float is provided inside the water tank, a deodorizing block is provided inside the float, and the deodorizing block is used to dissolve in the inner cavity of the float to form a deodorizing agent.

[0009] The present invention is further configured as follows: the float includes a buoyancy shell with an internal accommodating cavity, a lower through hole is provided at the bottom of the buoyancy shell, an upper through hole is provided at the top, a downwardly expanding conical bell mouth is provided at the lower end of the lower through hole, an adaptive sealing plug is provided in the bell mouth, the upper end of the sealing plug is fixedly connected to a support rod, the support rod passes through the lower through hole and the upper through hole of the buoyancy shell and penetrates the buoyancy shell; the upper end of the support rod is connected to the pull wire.

[0010] The present invention is further configured such that a water-permeable ring is provided at the bottom of the accommodating cavity, a support plate is provided on the upper part of the water-permeable ring, a plurality of deodorizing blocks are stacked on the upper part of the support plate, a pressure plate is provided on the upper part of the deodorizing blocks, and the pressure plate is pressed downward by a limit spring.

[0011] The present invention is further configured such that two positioning wheels are provided on the upper part of the water tank and press against each other on their circumferential surfaces, and a pull line passes between the two positioning wheels; the upper part of the buoyancy shell is connected to a pressure ring through a pressure spring, and the pressure ring is used to elastically press against the lower side of the positioning wheel.

[0012] The present invention is further configured such that a winding wheel and several guide wheels are provided inside the equipment box, the float is supported by a pull wire, the lower end of the pull wire is connected to the float, the upper end passes through the channel on the button and extends into the equipment box, and is wound on the winding wheel, and the guide wheel is used to guide the pull wire in the equipment box.

[0013] The present invention is further configured such that the winding wheel is driven to rotate by an adjusting assembly, and the adjusting assembly includes a friction shaft, a friction wheel and an adjusting shaft. The friction shaft is vertically rotatably installed in the equipment box and is driven to rotate by a driving device. The adjusting shaft is vertically rotatably installed in the equipment box and is coplanar with the friction shaft; the middle section of the adjusting shaft is rotationally supported by a swing block, and both ends swing up and down; a winding wheel is installed at one end of the adjusting shaft, and a friction disk is installed at the other end. A spherical friction convex surface is provided on the side of the friction disk facing the friction shaft, and the friction convex surface is used to be opposite to the friction shaft to realize friction transmission.

[0014] The present invention is further configured such that the lower portion of the swing block is rotatably connected to the equipment box via a swing shaft, an adjustment hole is defined on the swing block for the adjustment shaft to pass through, and the adjustment shaft can axially move and rotate within the adjustment hole; a limit block is fixedly mounted on the side of the adjustment shaft away from the friction disk, and an adjustment spring is provided between the swing block and the friction disk, and the adjustment spring is used to maintain the friction disk and the friction shaft in contact with each other;

[0015] The application is further provided with a pull spring which is wound around the winding wheel and extends downwards, the adjusting shaft is rotatably connected with a rotating sleeve between the winding wheel and the swing block, the upper circumferential surface of the rotating sleeve is fixedly connected with a pull spring, and the pull spring is used for elastically applying force to the adjusting shaft upwards.

[0016] The application is further provided with a connecting seat which is fixedly connected with the upper end of the pull spring, a screw rod which is rotatably connected with the upper end of the connecting seat, and the screw rod penetrates through the upper side wall of the equipment box and is threadedly connected with the equipment box.

[0017] The application is further provided with a gear transmission assembly which is connected with the output shaft of the motor to realize transmission.

[0018] The application is further provided with a pressing plane which is arranged at the middle position of the friction convex surface, the pressing plane is perpendicular to the adjusting shaft, the upper and lower sides of the pressing plane are both provided with a limiting blind hole, the limiting blind hole is tapered towards the limiting opening of the friction shaft, a guide bead and a supporting spring are arranged in the limiting blind hole, the supporting spring is elastically pressed between the limiting blind hole and the guide bead, the guide bead is partially extended from the limiting opening on one side and is used for abutting against the friction shaft.

[0019] The application is further provided with a supporting block which is arranged between the supporting spring and the guide bead, and the side of the supporting block which faces the guide bead is provided with a supporting convex ring which is used for supporting the guide bead.

[0020] In summary, the application has the following beneficial effects:

[0021] The intelligent auxiliary system can be installed on the water tank of the closestool, thereby improving the automation degree of the closestool, detecting the person using the closestool through the detection device and the sensor in the system, and driving the downward pressing assembly through the driving assembly, so as to realize automatic auxiliary flushing and facilitate the use of the elderly and other patients with inconvenient movements.

[0022] The float in the system is put into the water tank of the closestool, the float can automatically rise and fall during the drainage process, and the deodorizing agent can be automatically put into the closestool, thereby realizing automatic deodorizing treatment of the closestool to a certain extent and further improving the use convenience of the closestool. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structure schematic view of the application of the intelligent auxiliary system for the elderly using closestool on the closestool;

[0024] Figure 2 FIG. 3 is a structure schematic view of the equipment box and the float of the application;

[0025] Figure 3 FIG. 4 is a structure schematic view of the float of the application;

[0026] Figure 4 Structure diagram of the winding wheel and adjusting assembly of the present application;

[0027] Figure 5 Structure diagram of the friction wheel and friction shaft of the present application;

[0028] Figure 6 Structure diagram of the pressing assembly of the present application.

[0029] The figure mark: 1, barrel body; 2, water tank; 3, drain valve; 4, button; 41, channel; 5, equipment box; 51, detection device; 52, sensor; 53, threading hole; 6, float; 61, buoyancy shell; 62, containing cavity; 63, water permeable ring; 64, support plate; 641, water permeable hole; 65, deodorizing block; 66, pressing plate; 67, limiting spring; 68, lower through hole; 69, horn mouth; 610, sealing plug; 611, support rod; 612, upper through hole; 613, pressing spring; 614, pressing ring; 7, pressing assembly; 71, pressing rod; 72, pressing hole; 73, pressing spring; 74, pressing block; 8, power assembly; 81, cam; 9, motor; 91, output shaft; 10, pull wire; 11, positioning wheel; 12, guide wheel; 13, winding wheel; 14, driving device; 15, adjusting assembly; 151, friction shaft; 152, friction wheel; 153, adjusting shaft; 154, swing block; 155, adjusting hole; 156, swing shaft; 157, adjusting spring; 158, limiting block; 159, rotating sleeve; 1510, tension spring; 1511, connecting seat; 1512, screw rod; 1513, friction convex surface; 1521, blind hole; 1522, limiting opening; 1523, guide bead; 1524, support block; 1525, support convex ring; 1526, support spring; 1527, pressing plane. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0031] An old person toilet intelligent auxiliary system is installed on a toilet and used, which can assistively improve the convenience of toilet use, and makes it more suitable for old people to use. The toilet comprises a barrel body 1 and a water tank 2, a drain valve 3 is arranged in the water tank 2, a button 4 of the drain valve 3 is arranged on the top of the water tank 2, the drain valve 3 can be driven to open by pressing the button 4, and the control of flushing is realized;

[0032] like Figure 1 、 2 As shown, the intelligent assistance system includes an equipment box 5, which is installed on the upper part of the water tank 2 and can be fixed by glass glue. A detection device 51 is provided on the front side of the equipment box 5, and a sensor 52 for detecting human body is installed on the detection device 51; the sensor 52 can specifically be a proximity switch. When a human body approaches, the sensor 52 detects the person, and the detection device 51 can count, and then when the person finishes using the toilet and leaves, the sensor 52 is triggered again. When the time interval between the two triggers is greater than the preset time, the detection device 51 can determine that someone is using the toilet, and then trigger the flush signal, which is driven by the motor 9 to realize automatic flushing, making it convenient for users to use the toilet, especially for elderly people with limited mobility; when the time interval between the two triggers is too short, generally less than five seconds, there may be a situation where a person passes by but does not use the toilet, and the flush signal is not triggered.

[0033] Specifically, a drain valve 3 is provided inside the water tank 2, and a button 4 is provided on the top of the water tank 2. The drain valve 3 can be operated to drain water by pressing the button 4. A downward pressure component 7 and a power component 8 are installed inside the equipment box 5 of the intelligent assistance system. The power component 8 is coupled to the detection device 51. When the detection device 51 triggers a flush signal, it can output a rotational action, driving the downward pressure component 7 to rise and fall, thereby pushing the button 4. Pressing the button 4 can realize flushing.

[0034] A float 6 is arranged inside the water tank 2, and a deodorizing block 65 is arranged inside the float 6, which can be adjusted up and down to a certain extent inside the water tank 2. During the adjustment process, the deodorizing block 65 inside the float 6 can be partially immersed in the water tank 2, and the deodorizing block 65 can be partially dissolved in the water tank 2, so that during the flushing process, the toilet can be cleaned and deodorized to a certain extent.

[0035] The power assembly 8 includes a motor 9 and an output shaft 91 , wherein the output shaft 91 is horizontally installed and rotatably connected to the equipment box 5 , and the rotational motion of the motor 9 can be output through the output shaft 91 .

[0036] The power assembly 8 also includes a cam 81 arranged on the output shaft 91. During the rotation process, the downward circumference of the cam 81 forms ups and downs; and the lower circumference of the cam 81 is against the downward pressure assembly 7, pushing the downward pressure assembly 7 to move downward during the rotation process, and then pressing the button 4 to realize intelligent assisted flushing.

[0037] like Figure 6As shown, the pressing assembly 7 includes a pressing rod 71, a pressing block 74, and a pressing spring 73. The lower end of the pressing rod 71 extends through the bottom of the equipment box 5 and presses against the button 4 of the drain valve 3, enabling the pressing rod 71 to press the drain valve 3. The pressing block 74 is located above the pressing rod 71, with a certain gap formed between the pressing block 74 and the pressing rod 71. The lower portion of the pressing rod 71 is supported by the pressing spring 73 at the bottom of the equipment box 5, while the upper portion presses against the lower circumference of the cam 81. As the cam 81 rotates, it first exerts downward pressure on the pressing block 74, causing it to descend. Due to the certain gap between the pressing block 74 and the pressing rod 71, there is a certain hysteresis in the pressing rod 71's push on the button 4. Only after the pressing block 74 and the pressing rod 71 contact each other can the pressing rod 71 be pushed, thereby pressing the button 4 of the drain valve 3 and flushing the toilet.

[0038] like Figure 3 As shown, the float 6 includes a buoyancy shell 61 with an internal accommodating chamber 62. The buoyancy shell 61 has good buoyancy and can achieve a floating state. The buoyancy shell 61 has an overall cylindrical structure, with a lower through hole 68 at the bottom and an upper through hole 612 at the top. The lower through hole 68 and the upper through hole 612 extend through both ends. The lower end of the lower through hole 68 defines a downwardly expanding tapered bell mouth 69. A suitable sealing plug 610 is disposed within the bell mouth 69. When the sealing plug 610 moves downward relative to the bell mouth 69, the sealing plug 610 opens the bell mouth 69. When the sealing plug 610 moves upward relative to the bell mouth 69, the sealing plug 610 and the bell mouth 69 abut against each other, sealing the lower through hole 68.

[0039] A support rod 611 is fixedly connected to the upper end of the sealing plug 610, and the support rod 611 passes through the lower through hole 68 and the upper through hole 612 of the buoyancy shell 61, and penetrates the buoyancy shell 61; the upper end of the support rod 611 is connected to the pull wire 10, and the float 6 is supported as a whole by the pull wire 10. By winding the pull wire 10, the height of the float 6 can be adjusted.

[0040] A water-permeable ring 63 is located at the bottom of the accommodating chamber 62. This ring is densely covered with holes, primarily serving as a support and cushion. A support plate 64 is located above this ring, with several deodorizing blocks 65 stacked on top. A pressure plate 66 is located above these blocks, and this pressure plate is pressed downward by a limit spring 67. This force keeps the pressure plate 66 in its lowest position, thereby maintaining the deodorizing blocks 65 in their lowest position. Both the support plate 64 and the pressure plate 66 are densely covered with water-permeable holes 641, allowing water to flow smoothly through the accommodating chamber 62.

[0041] Under the action of the pull line 10, the entire float 6 is suspended from the lower end of the pull line 10. Under the action of its own weight, the lower end of the buoyancy shell 61 is pressed against the sealing plug 610. The lower section of the buoyancy shell 61 is immersed in the water for a short distance. Under the action of a portion of the buoyancy force and the supporting force of the sealing plug 610, the lower end of the float 6 is able to maintain a close contact. When the pull line 10 is relaxed, the float 6 is lowered. During this process, the volume of the buoyancy shell 61 immersed in the water increases, and the buoyancy generated also increases, until the buoyancy force on the buoyancy shell 61 matches its own weight, the buoyancy shell 61 floats in the water, the sealing force between the buoyancy shell 61 and the buoyancy shell 61 disappears, and the lower through hole 68 at the bottom of the buoyancy shell 61 opens, allowing the deodorizing liquid dissolved in the buoyancy shell 61 to flow out from the lower through hole 68, creating a liquid circulation exchange, thereby providing a certain deodorizing function for the water in the water tank 2. During the tightening process of the pull wire 10, the pull wire 10 pulls the sealing plug 610 upwards, lifting the entire float 6. The conical portion of the sealing plug 610 and the bell mouth 69 at the bottom of the buoyancy shell 61 are pressed and sealed against each other, thereby achieving separation between the accommodating chamber 62 and the water tank 2. Only a small portion of the deodorizing block 65 in the accommodating chamber 62 is entered into the water, reducing the excessive dissolution of the deodorizing block 65 and playing a certain saving role.

[0042] Two positioning wheels 11 are mounted on the upper portion of the water tank 2. The two positioning wheels 11 press against each other's circumferences. The pull line 10 passes between the two positioning wheels 11, and the float 6 is mounted below the two positioning wheels 11. The positioning wheels 11 not only position the float 6 but also limit the maximum lifting height of the float 6, allowing the float 6 to be raised and lowered smoothly and stably. Furthermore, a pressure ring 614 is connected to the upper portion of the buoyancy housing 61 via a pressure spring 613. The pressure ring 614 can press against the lower side of the positioning wheels 11 to limit the position, and the pressure spring 613 forms a certain elastic buffering effect, further maintaining the stability of the float 6's lifting and lowering adjustment.

[0043] like Figure 2 、 4 As shown, a winding wheel 13 and several guide wheels 12 are installed in the equipment box 5 of the intelligent assistance system. The winding wheel 13 can reel in the pull wire 10 of the float 6, thereby controlling the hanging height position of the float 6, and the guide wheel 12 can guide the pull wire 10, so that the winding and transportation of the pull wire 10 in the intelligent assistance system is more stable and smooth.

[0044] The lower end of the pull wire 10 is connected to the float 6, and the upper end passes through the channel 41 on the button 4 and extends into the equipment box 5, and is wound on the winding wheel. The pull wire 10 is guided by multiple guide wheels 12 in the equipment box 5, so that the guide wheels 12 can be kept winding smoothly.

[0045] The intelligent assistance system can be used with an adaptive button 4. A pipeline channel 41 for the pull wire 10 to pass through is opened at the edge of the pressing position on the button 4. The channel 41 can be pre-formed during the processing of the button 4; or, an ordinary button 4 can be drilled during installation; the pull wire 10 cooperates with the guide wheel 12 to pass through the channel 41 relatively smoothly.

[0046] The cable 10 is wound up by a winding wheel 13 , which is mounted on an adjusting assembly 15 and is rotated and adjusted by the adjusting assembly 15 to control the rotation direction of the winding wheel 13 so as to achieve unwinding and winding of the cable 10 .

[0047] Specifically, the adjusting assembly 15 includes a friction shaft 151, a friction wheel 152 and an adjusting shaft 153. The friction shaft 151 is vertically rotatably installed in the equipment box 5 and is driven to rotate by the driving device 14; the adjusting shaft 153 is vertically rotatably installed in the equipment box 5 and is coplanar with the friction shaft 151; a friction disc is installed at one end of the adjusting shaft 153, and a spherical friction convex surface 1513 is provided on the side of the friction disc facing the friction shaft 151. The friction convex surface 1513 is against the friction shaft 151, and the friction between the two can realize torque transmission, so that the rotation of the adjusting shaft 153 can be driven by the friction shaft 151; and a winding wheel 13 is installed at the other end of the adjusting shaft 153. The rotation of the adjusting shaft 153 can drive the winding wheel 13 to rotate synchronously, thereby realizing the winding of the pull line 10 and achieving the pulling effect on the float 6.

[0048] The middle section of the adjusting shaft 153 is supported by a swing block 154 for rotation, and the swing block 154 can swing at its position, so that both ends of the adjusting shaft 153 can also swing up and down. During the swinging process, the contact position between the friction disk and the friction shaft 151 will change. In the process of the friction position changing from one side of the adjusting shaft 153 to the other side, the rotation direction of the adjusting shaft 153 will change accordingly, so that the forward and reverse rotation of the adjusting shaft 153 can be changed, and the winding and unwinding of the winding wheel 13 can be adjusted.

[0049] Specifically, the lower portion of the swing block 154 is rotatably connected to the equipment box 5 via a swing shaft 156. An adjustment hole 155 is provided on the swing block 154 for the adjustment shaft 153 to pass through. The adjustment shaft 153 can axially move and rotate within the adjustment hole 155, thereby providing rotational and sliding support for the adjustment shaft 153 on the swing block 154. An adjustment spring 157 is installed between the swing block 154 and the friction disk. The adjustment spring 157 is mounted on the outside of the adjustment shaft 153. The elasticity of the adjustment spring 157 can push the friction disk outward, pressing the friction convex surface 1513 of the friction disk against the outer periphery of the friction shaft 151, thereby maintaining the friction transmission between the friction disk and the friction shaft 151.

[0050] In order to avoid the stability of the adjusting process, the limiting block 158 is fixedly installed on the side of the adjusting shaft 153 away from the friction disc, the movement of the adjusting shaft 153 can be limited by the limiting block 158, so that the stability and smoothness of the adjusting shaft 153 can be maintained. Because there is a distance difference between the rotation center of the swing block 154 and the ball center position of the friction convex surface 1513, the swing block 154 and the adjusting block will produce a certain axial movement during the swing process, and the two friction contact positions can be kept stable by the adjusting spring 157.

[0051] The pull wire 10 winds around the winding wheel 13 and extends downward, and under the action of the float 6, a downward force is generated at the end of the adjusting shaft 153. The rotating sleeve 159 is rotatably connected at the position corresponding to the winding wheel 13 and the swing block 154 of the adjusting shaft 153, the upper circumferential surface of the rotating sleeve 159 is fixedly connected with the tension spring 1510, and under the action of the tension spring 1510, an elastic tension force can be applied to the adjusting shaft 153 upward. The elastic tension force of the tension spring 1510 and the downward tension force of the pull wire 10 are combined with each other, so that a basic balance state can be achieved on the adjusting shaft 153; as the water tank 2 is drained, the buoyancy of the float 6 changes, thereby generating a difference in the upward and downward tension forces on the adjusting rod, so that the adjusting shaft 153 is swung up and down, the friction pressing position of the friction disc and the friction shaft 151 is changed, and the winding and unwinding adjustment of the adjusting shaft 153 and the winding wheel 13 is realized.

[0052] In order to facilitate the adjustment of the tension of the tension spring 1510, the connecting seat 1511 is fixedly connected to the upper end of the tension spring 1510, and the screw rod 1512 is rotatably connected to the upper end of the connecting seat 1511. The upper end of the screw rod 1512 penetrates through the upper side wall of the equipment box 5 and is threadedly connected with the equipment box 5. By adjusting the height of the screw rod 1512 through the thread, the tension spring 1510 can be adjusted up and down, so that the upward tension of the tension spring 1510 can be adjusted in the extruded state, and the balance state of the adjusting shaft 153 can be adjusted.

[0053] The driving device 14 of the friction shaft 151 can be driven by a separate rotary driver, which can output stable torque to the friction shaft 151. Alternatively, in order to realize the linkage between the pressing action of the button 4 and the winding and unwinding action of the float 6, the driving device 14 is provided as a gear transmission assembly, the input position of the gear transmission assembly is connected with the output shaft 91 of the motor 9 to realize power input, and the output position of the gear transmission assembly is connected with the friction shaft 151, so that the power of the motor 9 can be output to the friction shaft 151 to realize the linkage of the mechanism.

[0054] During use, the intelligent assistance system on the toilet can detect the user using the toilet and record the time the user has been using the toilet through the detection device 51 and the sensor 52. When the user leaves, the detection device 51 can send a flushing signal, and the motor 9 can drive the automatic flushing, making it easier for users to use the toilet, especially for elderly people with limited mobility.

[0055] In the initial state, the water level in the water tank 2 is high, and the buoyancy generated by the float 6 is large, so the downward pulling force generated by the float 6 on the pull wire 10 is small; the elastic force generated by the tension spring 1510 on the adjusting shaft 153 is larger, and one end of the winding wheel 13 on the adjusting shaft 153 will be tilted upward under the action of the tension spring 1510; the friction wheel 152 swings downward, and the upper side of the friction convex surface 1513 of the friction wheel 152 presses and rubs against the friction shaft 151. The motor 9 drives the output shaft 91 to rotate, and presses the button 4 through the cam 81 to open the drain valve 3 to flush water; at the same time, the winding wheel 13 starts to rotate, and the pull wire 10 on the winding wheel 13 is unwound, so that the pull wire 10 is relaxed, and the support rod 611 and the sealing plug 610 suspended by the pull wire 10 will drop, and the volume of the buoyancy shell 61 immersed in water increases, and the buoyancy generated increases. The sealing plug 610 and the lower through hole 68 and the bell mouth 69 at the bottom of the buoyancy shell 61 are opened, so that the water flow can be exchanged between the buoyancy shell 61 and the water tank 2, and then the dissolved liquid of the deodorizing block 65 in the buoyancy shell 61 is partially exchanged to the water tank 2, and discharged during the flushing process of the water tank 2, thereby achieving a deodorizing effect.

[0056] The float 6 drops to the lowest position of the cable 10. At this time, the float 6 is completely suspended at the lower end of the cable 10. The tension generated on the cable 10 will increase, which can act on the tension spring 1510 to pull one end of the winding wheel 13 of the adjusting shaft 153 downward, causing the adjusting shaft 153 to swing in the opposite direction to the previous direction. The friction wheel 152 then swings upward. The lower side of the friction convex surface 1513 of the friction wheel 152 presses and rubs against the friction shaft 151. The driving direction of the adjusting shaft 153 by the friction shaft 151 will change. During the rotation of the adjusting shaft 153, it will drive the winding wheel 13 to reel in the cable 10. During the reeling process, the float 6 rises to a high position, and the rear driving device 14 will also stop rotating at almost the same time.

[0057] Then, the water in the water tank 2 rises further. During the rising process, the water level will gradually touch the buoyancy shell 61 of the float 6. The buoyancy generated by the float 6 as a whole will gradually increase, and the tension generated by the float 6 on the pull line 10 will gradually decrease until the tension of the float 6 on the pull line 10 is less than the tension of the tension spring 1510. The tension spring 1510 will gradually swing one end of the winding wheel 13 of the adjustment shaft 153 upward until it reaches the initial position, and the water tank 2 is filled with water.

[0058] By adopting the above technical solution, not only can the intelligent auxiliary flushing of the toilet be realized, but also the auxiliary addition of deodorizing agents in the toilet can be realized, which is convenient for use, especially for elderly people or patients with limited mobility.

[0059] On the basis of the above solution, the friction wheel 152 can be further improved to improve the stability of the transmission; Figure 5 As shown, a pressing plane 1527 can be provided in the middle of the friction convex surface 1513 on the friction wheel 152. The pressing plane 1527 is perpendicular to the adjustment shaft 153. The pressing plane 1527 serves as the switching position for the friction transmission on the upper and lower sides of the friction wheel 152. A guide bead 1523 is installed on the pressing plane 1527. The guide bead 1523 provides auxiliary guidance at the direction switching position to avoid jamming between the friction wheel 152 and the friction shaft 151.

[0060] Limiting blind holes 1521 are provided on the upper and lower sides of the pressing plane 1527. The limiting blind holes 1521 are provided with limiting openings 1522 facing the friction shaft 151. The limiting openings 1522 are in the shape of a gradually shrinking cone. A guide bead 1523 and a support spring 1526 are provided in the limiting blind hole 1521. The guide bead 1523 is located on the side close to the limiting opening 1522 and is slightly smaller than the size of the limiting opening 1522. The guide bead 1523 can only partially extend from the limiting opening 1522 and is used to resist the friction shaft 151, playing a rolling guide role. The support spring 1526 elastically presses between the bottom of the limiting blind hole 1521 and the guide bead 1523, which can ensure that a portion of the guide bead 1523 can always extend to the outside of the limiting blind hole 1521 and protrude from the pressing plane 1527, thereby achieving stable switching and guiding effects with the friction shaft 151.

[0061] In order to maintain the stability of the guide bead 1523, a support block 1524 can be set between the support spring 1526 and the guide bead 1523. A support protrusion ring 1525 is set on the side of the support block 1524 facing the guide bead 1523. The support protrusion ring 1525 can support the guide bead 1523, so that the guide bead 1523 can roll more smoothly, thereby maintaining the smoothness and stability of the friction wheel 152 during the swing switching process.

[0062] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An intelligent toilet assistance system for the elderly, characterized in that: The invention comprises an equipment box (5) installed on the upper part of the toilet water tank (2), wherein a detection device (51) is provided on the front side of the equipment box (5), and a sensor (52) for detecting a human body is provided on the detection device (51); a down-pressing assembly (7) and a power assembly (8) are provided inside the equipment box (5), and the power assembly (8) is used to drive the down-pressing assembly (7) to move up and down to push the button (4); the power assembly (8) comprises a motor (9), an output shaft (91) and a cam (81), wherein the output shaft (91) is connected to the equipment box (5) in a horizontally rotating manner, and the motor (9) is used to drive the output shaft (91) to rotate; the cam (81) is installed on the output shaft (91), and the lower peripheral surface of the cam (81) abuts against the down-pressing assembly (7) to push the down-pressing assembly (7) to move downward; The pressing assembly (7) includes a pressing rod (71), a pressing block (74) and a pressing spring (73); the lower end of the pressing rod (71) passes through the bottom of the equipment box (5) and presses against the button (4) of the drain valve (3); the pressing block (74) is located at the upper part of the pressing rod (71) and forms a gap with the pressing rod (71); the lower part of the pressing rod (71) is supported on the bottom of the equipment box (5) by the pressing spring (73), and the upper part presses against the lower peripheral surface of the cam (81); A float (6) that can be raised and lowered is provided inside the water tank (2), and a deodorizing block (65) is provided inside the float (6). The deodorizing block (65) is used to dissolve in the inner cavity of the float (6) to form a deodorizing agent; The float (6) includes a buoyancy shell (61) with an internal accommodating cavity (62), a lower through hole (68) is provided at the bottom of the buoyancy shell (61), an upper through hole (612) is provided at the top, a downwardly expanding conical bell mouth (69) is provided at the lower end of the lower through hole (68), an adapted sealing plug (610) is provided in the bell mouth (69), an upper end of the sealing plug (610) is fixedly connected to a support rod (611), the support rod (611) passes through the lower through hole (68) and the upper through hole (612) of the buoyancy shell (61), and penetrates the buoyancy shell (61); the upper end of the support rod (611) is connected to the pull line (10); A winding wheel (13) and a plurality of guide wheels (12) are provided inside the equipment box (5); the float (6) is supported by a pull wire (10); the lower end of the pull wire (10) is connected to the float (6); the upper end of the pull wire (10) passes through a channel (41) on the button (4) and extends into the equipment box (5) and is wound on the winding wheel; the guide wheel (12) is used to guide the pull wire (10) in the equipment box (5); The winding wheel (13) is driven to rotate by an adjusting assembly (15). The adjusting assembly (15) comprises a friction shaft (151), a friction wheel (152) and an adjusting shaft (153). The friction shaft (151) is vertically rotatably mounted in the equipment box (5) and driven to rotate by a driving device (14). The adjusting shaft (153) is vertically rotatably mounted in the equipment box (5) and is coplanar with the friction shaft (151). The middle section of the adjusting shaft (153) is rotatably supported by a swing block (154), and both ends swing up and down. The winding wheel (13) is mounted on one end of the adjusting shaft (153), and a friction disc is mounted on the other end. A spherical friction convex surface (1513) is provided on the side of the friction disc facing the friction shaft (151). The friction convex surface (1513) is used to face the friction shaft (151) to achieve friction transmission. The lower part of the swing block (154) is rotatably connected to the equipment box (5) via a swing shaft (156). An adjustment hole (155) is provided on the swing block (154) for the adjustment shaft (153) to pass through. The adjustment shaft (153) can axially move and rotate in the adjustment hole (155). A limit block (158) is fixedly installed on the side of the adjustment shaft (153) away from the friction disk. An adjustment spring (157) is provided between the swing block (154) and the friction disk. The adjustment spring (157) is used to keep the friction disk and the friction shaft (151) against each other. The pull wire (10) is wound around the winding wheel (13) and extends downward. The adjusting shaft (153) is rotatably connected to a rotating sleeve (159) corresponding to the position between the winding wheel (13) and the swing block (154). The upper surface of the rotating sleeve (159) is fixedly connected to a tension spring (1510). The tension spring (1510) is used to elastically apply force to the adjusting shaft (153) upward. The upper end of the tension spring (1510) is fixedly connected to a connecting seat (1511), and the upper end of the connecting seat (1511) is rotatably connected to a screw (1512), which penetrates the upper side wall of the equipment box (5) and is threadedly connected to the equipment box (5); the driving device (14) is a gear transmission component, and is connected to the output shaft (91) of the motor (9) to realize transmission; a pressing plane (1527) is provided at the middle position of the friction convex surface (1513), and the pressing plane (1527) is in contact with the adjusting shaft ( 153) are perpendicular to each other, and a limiting blind hole (1521) is provided on both the upper and lower sides of the pressing plane (1527), and a conical limiting opening (1522) is provided on the limiting blind hole (1521) facing the friction shaft (151), and a guide bead (1523) and a support spring (1526) are provided in the limiting blind hole (1521), and the support spring (1526) elastically presses between the limiting blind hole (1521) and the guide bead (1523), and one side of the guide bead (1523) partially extends from the limiting opening (1522) and is used to resist the friction shaft (151); a support block (1524) is provided between the support spring (1526) and the guide bead (1523), and a support protrusion ring (1525) for supporting the guide bead (1523) is provided on the side of the support block (1524 facing the guide bead (1523); The upper portion of the buoyancy housing (61) is connected to a pressing ring (614) via a pressing spring (613), and the pressing ring (614) is used to elastically press against the lower side of the positioning wheel (11).

2. The intelligent toilet assistance system for the elderly according to claim 1, characterized in that: A water-permeable ring (63) is provided at the bottom of the accommodating cavity (62), a support plate (64) is provided on the upper portion of the water-permeable ring (63), a plurality of deodorizing blocks (65) are stacked on the upper portion of the support plate (64), a pressing plate (66) is provided on the upper portion of the deodorizing blocks (65), and the pressing plate (66) is pressed downward by a limit spring (67).

3. The intelligent toilet assistance system for the elderly according to claim 1, characterized in that: Two positioning wheels (11) whose circumferential surfaces press against each other are provided on the upper part of the water tank (2), and the pull wire (10) passes through between the two positioning wheels (11).

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