Cleaning device for smart toilets

Abstract

The invention discloses a cleaning device for smart toilets, comprising a stationary bracket, an outer spray tube slidably on the stationary bracket, and an inner spray tube slidably within the outer spray tube, wherein a water spray nozzle is provided at the front end of the inner spray tube, and wherein an inner core tube is further comprised, which is arranged inside the outer spray tube and is fixed relative to the position of the outer spray tube. The inner spray tube extends and retracts around the inner core tube. A sealing ring is provided between the inner spray tube and the inner core tube, which surrounds the outer wall of the front end of the inner core tube. The interior of the inner spray tube is continuously connected to the interior of the inner core tube, so that a water outlet channel is formed.The water outlet channel is connected to the water spray nozzle, and a water inlet opening connected to the water outlet channel is provided at the rear end of the inner core tube. Since the inner core tube and the outer spray tube maintain a fixed position relative to each other, only the inner spray tube extends or retracts relative to the outer spray tube and the inner core tube. This allows the outer spray tube to support the inner spray tube and the inner core tube during the sliding movement, while the structure of the inner core tube remains stable.

Description

Technical field

[0001] The invention relates to a cleaning device for smart toilets, in particular a cleaning device for smart toilets without an integrated hose. State of the art

[0002] With the rapid development of smart toilets, ultra-slim smart toilets are becoming increasingly popular with consumers. As space at the rear of smart toilets becomes ever more limited (both in height and length), the traditional single-stage extendable cleaning system can no longer meet the spatial requirements. Multi-stage extendable cleaning systems (i.e., two-stage extendable cleaning systems) partially solve these space problems. A two-stage extendable cleaning system includes an inner spray tube in addition to the outer one. The inner spray tube can be extended outwards relative to the outer spray tube, with a flexible hose continuously connecting both tubes to form the water supply path.In the prior art of a two-stage extendable cleaning device, the inner and outer spray tubes must repeatedly extend and retract during operation. This means that the inner spray tube must continuously extend and retract relative to the outer spray tube, which also causes the connecting hose (through which water is supplied to the inner spray tube) to move into the outer spray tube and retract with it. This movement of the inner spray tube results in continuous friction between the connecting hose and the outer spray tube, which can lead to leakage and even detachment of the connecting hose. Therefore, improvements in product stability and lifespan are necessary. Subject matter of the invention

[0003] The present invention provides a cleaning device for smart toilets that eliminates the need for flexible connecting hoses to prevent leaks and detachments, thereby overcoming the disadvantages of the prior art. The technical concept of the invention for solving the problems outlined is as follows: a cleaning device for smart toilets comprising a stationary bracket, an outer spray tube arranged to slide back and forth on the stationary bracket, and an inner spray tube arranged to slide back and forth within the outer spray tube, wherein a water spray nozzle is provided at the front end of the inner spray tube, further comprising an inner core tube which is arranged within the outer spray tube and is fixed relative to the position of the outer spray tube, wherein the inner spray tube extends and retracts around the inner core tube.wherein a sealing ring is provided between the inner spray tube and the inner core tube, the sealing ring enclosing the outer wall of the front end of the inner core tube, wherein the interior of the inner spray tube is continuously connected to the interior of the inner core tube, forming a water outlet channel, wherein the water outlet channel is connected to the water spray nozzle, and wherein a water inlet opening connected to the water outlet channel is provided at the rear end of the inner core tube.

[0004] In an advantageous embodiment, an elastic stop pin is provided at the rear end of the inner spray tube, wherein a locking step is provided on the front section of the inner wall of the outer spray tube, wherein, when the elastic stop pin moves forward with the inner spray tube and engages in the locking step, the inner spray tube can drive the outer spray tube to slide forward together.

[0005] In an advantageous embodiment, a gear and a meshing rack are also included, wherein the gear is attached to the stationary support, wherein the end of the rack is connected to the inner spray tube, and wherein, when the rack moves, it drives the inner spray tube to extend and retract and the outer spray tube to slide.

[0006] In an advantageous embodiment, an electric motor is also provided to rotate the gear and thereby extend and retract the rack, with the electric motor being mounted on the side of the stationary support.

[0007] In an advantageous exemplary embodiment, a rotating drum, a steel band wound onto the rotating drum, and an electric motor are also provided, which sets the rotating drum in motion and releases or winds up the steel band, wherein both the electric motor and the rotating drum are attached to the stationary support, wherein the free end of the steel band is connected to the inner spray tube, and wherein the steel band carries the spray tube in order to extend and retract it and to set the outer spray tube in sliding motion.

[0008] In an advantageous embodiment, a front elastic clamp is provided between the rear section of the inner spray tube and the front section of the outer spray tube for mutual locking. A rear elastic clamp is provided between the rear section of the outer spray tube and the stationary support for mutual locking. The clamping force of the front elastic clamp is less than the clamping force of the rear elastic clamp. During operation, the inner spray tube extends forward. After the front elastic clamp engages, the inner spray tube pulls the outer spray tube forward, thereby releasing the rear elastic clamp. During retraction, the inner spray tube carries the outer spray tube with it to slide backward together.When the rear elastic clamp is in contact with the outer spray tube and the stationary bracket, the front elastic clamp releases. The inner spray tube then retracts into the outer spray tube until it rests against it. The inner spray tube then pushes the outer spray tube further backward, causing the rear elastic clamp to engage.

[0009] In an advantageous embodiment, a plug is provided at the rear end of the inner core tube, which is partially inserted into the outer spray tube and is in clamping connection with the outer spray tube, with the water inlet opening being located on the part of the plug that is not inserted into the outer spray tube.

[0010] In an advantageous embodiment, the water inlet opening of the inner core tube is provided on the side of the inner core tube, wherein an external water supply line is also provided, which is arranged on the side of the stationary support, and wherein one end of the external water supply line is continuously connected to the water inlet opening.

[0011] In an advantageous embodiment, a side cover is further provided which covers the gear and the rack laterally, wherein a receptacle is also provided on the side cover in which the external water supply line is positioned.

[0012] In an advantageous embodiment, the water inlet opening is equipped with a first adapter, wherein one end of the external water supply line is in plug connection with the first adapter, wherein a second adapter is further provided which is attached to the side cover, and wherein the other end of the external water supply line is in plug connection with the second adapter.

[0013] In an advantageous embodiment, the sealing ring is a Y-shaped sealing ring or a K-shaped sealing ring.

[0014] Compared to the state of the art, the present technical concept offers the following advantages: 1. An inner core tube is provided within the outer spray tube. The inner spray tube is movably arranged between the inner core tube and the outer spray tube so that it can extend and retract. The water outlet channel connected to the water spray nozzle is formed by a combination of the interior of the inner spray tube and the interior of the inner core tube. Water enters the interior of the inner core tube through the water inlet opening of the inner core tube, then flows into the interior of the inner spray tube, and finally is sprayed from the water spray nozzle. Since the inner core tube and the outer spray tube maintain a fixed position relative to each other, only the inner spray tube extends or retracts relative to the outer spray tube and the inner core tube.This allows the outer spray tube to support the inner spray tube and the inner core tube during sliding movement, while ensuring the stability of the inner core tube. 2. A sealing ring is provided between the inner spray tube and the inner core tube, ensuring the water outlet channel between the inner core tube and the inner spray tube is sealed during operation. In particular, the use of a Y-shaped sealing ring not only provides a better seal but also facilitates the movement of the inner spray tube. 3. After the inner spray tube extends from the outer spray tube, the elastic stop pin of the inner spray tube can pull the outer spray tube further forward, thus extending the extension path of the cleaning device. The elastic stop pin also facilitates the installation of the inner spray tube. 4.The plug at the end of the inner core tube is attached to the outer spray tube via a push-fit connection, resulting in a simple design and easy installation. The water inlet is located on the portion of the plug that is not inserted into the outer spray tube, simplifying the design of the outer spray tube and facilitating the water connection. The water inlet of the inner core tube is positioned on the side of the tube, allowing the external water supply line to be conveniently routed alongside the stationary bracket when connected. This eliminates the need for the external water supply line to occupy space above the cleaning device, enabling a sleek toilet design.Furthermore, interference and friction between the external water supply line and other parts of the toilet above the cleaning device can be avoided, thus improving stability and service life. 6. The external water supply line is positioned in the receptacle of the side cover so that even if the external spray tube exerts tension on the external water supply line during its back-and-forth movement, the external water supply line is always held stably within the receptacle, maintaining a stable position and characterized by a robust construction. Character description

[0015] The invention is described in more detail below with reference to the attached figures and by means of exemplary embodiments. Figure 1 shows a perspective exploded view of the cleaning device for smart toilets. Figure 2shows a perspective view of the in Figure 1 Cleaning device shown for smart toilets. Figure 3 shows a different perspective view of the in Figure 1 Cleaning device shown for smart toilets. Figure 4 shows a sectional view of the cleaning device for smart toilets when it is not in operation according to Figure 1 . Figure 5 shows a sectional view of the cleaning device for smart toilets in operation according to Figure 1 . Figure 6 shows a comparative view of the three operating strokes of the cleaning device for smart toilets according to Figure 1 . Figure 7 shows a perspective view of the side cover of the cleaning device for smart toilets according to Figure 1 . Figure 8shows a view of the positions of the external water supply line and the side cover of the non-operational cleaning device for smart toilets according to Figure 1 . Figure 9 shows a view of the positions of the external water supply line and the side cover of the cleaning device for smart toilets in operation according to Figure 1 . Figure 10 shows a sectional view of another embodiment of the cleaning device for smart toilets in its initial state. Figure 11 shows a sectional view of the cleaning device for smart toilets in operation according to Figure 10 . Specific examples of implementation First embodiment

[0016] As in the Figures 1 to 9As shown, the cleaning device for smart toilets comprises a stationary bracket 10, an outer spray tube 20 arranged to slide back and forth on the stationary bracket, and an inner spray tube 30 arranged to slide back and forth within the outer spray tube, with a water spray nozzle 32 arranged at the front end of the inner spray tube. Furthermore, an inner core tube 40 is provided, which is arranged inside the outer spray tube 20 and is fixed relative to the position of the outer spray tube, meaning that the inner core tube can slide back and forth together with the outer spray tube. The inner spray tube 30 extends and retracts around the inner core tube 40, meaning that the inner spray tube is movably arranged between the outer spray tube 20 and the inner core tube.A sealing ring 50 is provided between the inner spray tube 30 and the inner core tube 40, wherein the sealing ring surrounds the outer wall of the front end of the inner core tube 40, wherein the interior of the inner spray tube is continuously connected to the interior of the inner core tube, so that a water outlet channel 60 is formed, wherein the water outlet channel is connected to the water spray nozzle 32, and wherein a water inlet opening 42 connected to the water outlet channel is provided at the rear end of the inner core tube.During operation, the inner spray tube 30 extends forward from the outer spray tube 20. The outer spray tube can also slide forward along the stationary support 10 to a specific position. Water enters the inner core tube 40 from the outside through the water inlet opening 42 and flows along the water outlet channel 60 to the front end of the inner spray tube 30, where it is then sprayed from the water spray nozzle 32 to perform the cleaning action. Because no hose is provided inside the outer spray tube to guide the water flow, the height dimensions of the rear end of the cleaning device can be significantly reduced compared to prior art designs. At the same time, latent risks associated with using a hose, such as leakage and detachment, are avoided.

[0017] It is understood that the sliding of the outer spray tube 20 and the extension and retraction of the inner spray tube 30 can be achieved by conventional means, for example by a rod drive, an electric motor drive, a hydraulic drive, or by a spring-assisted return mechanism. Furthermore, several water spray nozzles with correspondingly multiple water outlet channels can be provided.

[0018] Preferably, the sealing ring 50 is a unidirectional sealing ring. Even more preferably, the sealing ring is a Y-shaped sealing ring, wherein the Y-shaped sealing ring ensures the tightness of the water outlet channel 60 both in the resting state and during relative movement between the outer spray tube 20 and the inner spray tube 30. Of course, a bidirectional sealing ring, for example a K-shaped sealing ring, can also be used as the sealing ring 50.

[0019] Preferably, an elastic stop pin 34 is provided at the rear end of the inner spray tube 30, and a locking step is provided on the front section of the inner wall of the outer spray tube 20. As shown in Figure 6 As shown, when the elastic stop pin moves forward with the inner spray tube and engages in the locking stage, the inner spray tube can drive the outer spray tube to slide forward together.

[0020] Preferably, a plug 44 is provided at the rear end of the inner core tube 40, which is partially inserted into the outer spray tube 20 and is clamped to the outer spray tube. The water inlet opening 42 is located on the part of the plug that is not inserted into the outer spray tube. This facilitates the water connection and repairs to the water inlet opening 42.

[0021] Preferably, the assembly also includes a gear 72 and a meshing rack 74, the gear being attached to the stationary support 10, and the end of the rack being connected to the inner spray tube 30. Thus, when the gear drives the rack, the movement of the rack causes the inner spray tube to extend and retract, and the outer spray tube 20 to slide out. That is, when the gear 72 starts during operation, the rack 74 extends and drives the inner spray tube 30 to extend it out of the outer spray tube 20. When the inner spray tube engages with the outer spray tube (the elastic stop pin 34 engages the locking stage), the outer spray tube 20 slides forward along the stationary support 10, driven by the inner spray tube 30.The forward sliding path of the outer spray tube on the stationary bracket 10 can be controlled by the gear and rack, provided that it remains within the maximum sliding path of the outer spray tube. During retraction, the inner and outer spray tubes are retracted in stages, driven by the rack.

[0022] Preferably, an electric motor 76 is also provided to rotate the gear 72 and thereby extend and retract the rack 74, the electric motor being mounted on the side of the stationary support 10. It is understood that the rotation of the gear can alternatively be driven by the force of a water flow. Furthermore, the gear and rack assembly can also be replaced by a rotating drum and a steel band, wherein, for example, an electric motor rotates the rotating drum and the steel band is wound onto the rotating drum. Rotation of the electric motor causes the steel band to be wound or released, the free end of the steel band being connected to the inner spray tube, and wherein the steel band carries the inner spray tube with it to extend and retract it and to set the outer spray tube in sliding motion.

[0023] Advantageously, the water inlet opening 42 of the inner core tube 40 is provided on the side of the inner core tube. Furthermore, an external water supply line 80 is provided, which is arranged on the side of the stationary support 10, with one end of the external water supply line being continuously connected to the water inlet opening.

[0024] In the present embodiment, the external water supply line 80 and the electric motor 76 are arranged on the right and left sides of the stationary bracket 10, respectively. Since the external water supply line 80 is located on the side of the stationary bracket 10, the height of the cleaning device depends primarily on the height of the stationary bracket 10, with the overall height not being affected by the external water supply line. In the present embodiment, two water spray nozzles and corresponding water outlet channels are provided, as well as two corresponding external water supply lines.

[0025] Preferably, a side cover 90 is also provided, which covers the gear 72 and the rack 74 laterally, wherein a receptacle 92 is also provided on the side cover in which the external water supply line 90 is positioned.

[0026] Preferably, the water inlet opening 42 is equipped with a first adapter 46, wherein one end of the external water supply line 80 is plugged into the first adapter 46. Furthermore, a second adapter 94 is provided, which is attached to the side cover 90, wherein the other end of the external water supply line 80 is plugged into the second adapter 94. Thus, only the external water supply line 80 needs to be connected to the second adapter 94 for the cleaning device to perform a cleaning process.

[0027] Preferably, a self-cleaning saddle 100 is also included, which is attached to the front end of the outer spray tube 20. Where the self-cleaning saddle extends forward over the outer spray tube, a self-cleaning water channel 101 is provided, with a water outlet of the self-cleaning water channel being located directly above the water spray nozzle 32. Thus, by opening the water outlet of the self-cleaning water channel 101, the water flow can perform the self-cleaning of the water spray nozzle 32. If the water spray nozzle is retracted into the outer spray tube while stationary, self-cleaning can, of course, also take place during the extension process.It is understood that the external water source is opened and closed during installation and operation via a switching valve 110, the switching valve being connected by a hose to both the external water supply line 80 and the self-cleaning water channel 101. Thus, both the self-cleaning function and the water outlet of the water spray nozzle 32 can be controlled via the switching valve. Second embodiment

[0028] The Figures 10 and 11Figure 1 shows a modification of the design of the cleaning device for smart toilets, the difference from the first embodiment being that a different locking mechanism exists between the inner and outer spray tubes, eliminating the elastic stop pin and the locking stage. Specifically, a front elastic clamp 120 is provided between the rear section of the inner spray tube 30 and the front section of the outer spray tube 20 for mutual locking. A rear elastic clamp 130 is provided between the rear section of the outer spray tube 20 and the stationary bracket 10 for mutual locking. The clamping force of the front elastic clamp 120 is less than the clamping force of the rear elastic clamp 130.During operation, the front clamp 120 is initially released and the rear clamp 130 is engaged. Driven by the electric motor, the inner spray tube 30 initially extends forward relative to the outer spray tube 20. After the front elastic clamp 120 engages, the inner spray tube 30 pulls the outer spray tube 20 forward, thereby releasing the rear elastic clamp 130 and allowing the outer spray tube 30 to slide forward along the stationary support 10. During retraction, the inner spray tube 30, due to the engagement of the front clamp 120, initially pulls the outer spray tube 20 with it to slide backward together. When the rear elastic clamp 130 is positioned between the outer spray tube and the stationary support, the front elastic clamp 120 releases.The inner spray tube 30 then retracts into the outer spray tube 20 until it rests against the outer spray tube. The inner spray tube 30 then pushes the outer spray tube 20 further backward, causing the rear elastic clamping device 130 to engage.

[0029] The foregoing descriptions merely highlight advantageous embodiments of the invention, without limiting its scope. All equivalent modifications or embodiments within the scope of the present invention and the description herein are also covered by the scope of protection of the present invention.

Claims

1. Cleaning device for smart toilets, comprising a stationary bracket, an outer spray tube arranged to slide back and forth on the stationary bracket, and an inner spray tube arranged to slide back and forth in the outer spray tube, wherein a water spray nozzle is provided at the front end of the inner spray tube, characterized by the fact thatfurthermore, an inner core tube is included, which is arranged inside the outer spray tube and is fixed relative to the position of the outer spray tube, wherein the inner spray tube extends and retracts around the inner core tube, wherein a sealing ring is provided between the inner spray tube and the inner core tube, wherein the sealing ring surrounds the outer wall of the front end of the inner core tube, wherein the interior of the inner spray tube is continuously connected to the interior of the inner core tube, so that a water outlet channel is formed, wherein the water outlet channel is connected to the water spray nozzle, and wherein a water inlet opening connected to the water outlet channel is provided at the rear end of the inner core tube.

2. Cleaning device for smart toilets according to claim 1, characterized by the fact thatAn elastic stop pin is provided at the rear end of the inner spray tube, a locking step is provided on the front section of the inner wall of the outer spray tube, and when the elastic stop pin moves forward with the inner spray tube and engages in the locking step, the inner spray tube can cause the outer spray tube to slide forward together.

3. Cleaning device for smart toilets according to claim 1, characterized by the fact thatFurthermore, a gear and a meshing rack and an electric motor are provided to rotate the gear and extend and retract the rack, the electric motor being mounted on the side of the stationary support, the gear being attached to the stationary support, the end of the rack being connected to the inner spray tube, and when the rack moves, it drives the inner spray tube to extend and retract and the outer spray tube to slide.

4. Cleaning device for smart toilets according to claim 1, characterized by the fact thatFurthermore, a rotating drum, a steel band wound onto the rotating drum, and an electric motor are provided to rotate the rotating drum and to release and wind up the steel band, wherein both the electric motor and the rotating drum are attached to the stationary support, wherein the free end of the steel band is connected to the inner spray tube, and wherein the steel band carries the inner spray tube in order to extend and retract it and to set the outer spray tube in sliding motion.

5. Cleaning device for smart toilets according to claim 3 or 4, characterized by the fact thata front elastic clamp is provided acting between the rear section of the inner spray tube and the front section of the outer spray tube, and a rear elastic clamp is provided acting between the rear section of the outer spray tube and the stationary support, wherein the connecting force of the front elastic clamp is less than the connecting force of the rear elastic clamp, wherein during operation the inner spray tube extends forward, wherein after the front elastic clamp engages the inner spray tube pulls the outer spray tube forward, thereby releasing the rear elastic clamp, wherein during retraction the inner spray tube takes the outer spray tube with it to slide backward together, thereby releasing the front elastic clamp.when the rear elastic clamping mechanism is in contact between the outer spray tube and the stationary holder, the inner spray tube then retracts into the outer spray tube until it rests against the outer spray tube, and the inner spray tube then pushes the outer spray tube further backward, causing the rear elastic clamping mechanism to engage.

6. Cleaning device for smart toilets according to claim 1, characterized by the fact that A plug is provided at the rear end of the inner core tube, which is partially inserted into the outer spray tube and is in clamping connection with the outer spray tube, with the water inlet opening being located on the part of the plug that is not inserted into the outer spray tube.

7. Cleaning device for smart toilets according to claim 6, characterized by the fact thatThe water inlet opening of the inner core tube is provided on the side of the inner core tube, and an external water supply line is also provided, which is arranged on the side of the stationary support, with one end of the external water supply line being continuously connected to the water inlet opening.

8. Cleaning device for smart toilets according to claim 7, characterized by the fact that It also includes a side cover that covers the gear and rack laterally, with a receptacle provided on the side cover in which the external water supply line is received.

9. Cleaning device for smart toilets according to claim 7, characterized by the fact thatthe water inlet opening is equipped with a first adapter, wherein one end of the external water supply line is plugged into the first adapter, wherein a second adapter is provided which is attached to the side cover, and wherein the other end of the external water supply line is plugged into the second adapter.

10. Cleaning device for smart toilets according to claim 1, characterized by the fact that The sealing ring is either a Y-shaped sealing ring or a K-shaped sealing ring.

Images