A pneumatic water tank cleaning system

Abstract

The present invention provides a pneumatic water tank cleaning system, comprising a cleaning brush, a first guide rail arranged on the inner wall of the water tank, a water outlet control valve and an air extraction valve, wherein the cleaning brush is movably connected to the first guide rail, the first guide rail can guide the cleaning brush to move, the water outlet control valve controls the water tank to be sealed or opened, and the air extraction valve drives the cleaning brush in the water tank to move along the air extraction port position close to or away from the air extraction valve by pumping and releasing air, thereby driving the cleaning brush to move and clean the inner wall of the water tank. The pneumatic water tank cleaning system of the present invention adopts a pneumatic layout, and the operation of the cleaning device can be controlled by timing control or manual opening control. It can clean the scale accumulated on the inner wall of the water tank due to long-term use and the bacteria that grow there, so as to avoid affecting the water quality and the normal use of the water tank, and has a good cleaning effect, which solves the problems that the water tank itself does not have the ability to remove scale or has a poor descaling effect, and can provide users with healthy and clean bath water.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning devices, and in particular to a pneumatic water tank cleaning system. Background Art

[0002] Nowadays, water heaters have become a necessity in people's daily lives. Water heaters are widely used in people's lives. Water heaters usually include a water tank. The water heater can heat and release the water stored in the water tank as needed, thereby providing warm water for people. However, during the use of the water heater, since the water contains calcium, magnesium and other ions, when the water heater is heated, the calcium, magnesium and other ions in the water combine with the acid radical ions in the water to form insoluble substances. After long-term use, the insoluble substances generated are adsorbed on the surface of the water tank inside the water heater, that is, the inner wall of the water tank, thereby causing the problem of scaling inside the water heater.

[0003] In order to solve the problem of scaling on the inner wall of the water heater tank, the existing internal descaling devices of the water heater generally cannot achieve effective cleaning effect, and a large amount of water needs to be released to displace and discharge the sewage inside the water heater, thereby causing a large waste of water resources. Based on this, there is an urgent need in the art to design a cleaning device with good cleaning effect and water saving to remove scale inside the water heater tank. Summary of the invention

[0004] In view of the above technical problems, the technical solution of the present invention provides a pneumatic water tank cleaning system to effectively clean the scale accumulated on the inner wall of the water tank due to long-term use of the water heater.

[0005] A pneumatic water tank cleaning system comprises a cleaning brush, a first guide rail arranged on the inner wall of the water tank, a water outlet control valve and an air extraction valve, wherein the cleaning brush is movably connected to the first guide rail, the first guide rail can guide the cleaning brush to move, the water outlet control valve controls the water tank to be closed or opened, and the air extraction valve drives the cleaning brush in the water tank to move along the air extraction port position close to or away from the air extraction valve by sucking and releasing air, thereby driving the cleaning brush to move and clean the inner wall of the water tank.

[0006] Furthermore, the first guide rail is arranged on the inner wall of the water tank in a spiral ring shape.

[0007] Furthermore, the first guide rail is in a closed ring shape.

[0008] Furthermore, the first guide rail includes a vertical straight guide rail and an inclined arc guide rail, and the vertical guide rail and the inclined arc guide rail are connected to each other.

[0009] Furthermore, the cleaning brush is a retractable cleaning brush.

[0010] Furthermore, the cleaning brush is movably or fixedly connected to the inner wall of the water tank through an elastic member.

[0011] Furthermore, a second guide rail is provided on the inner wall of the water tank, and the cleaning brush is movably arranged in the second guide rail through an elastic member having a pulley connected to the end thereof, so that the cleaning brush is movably connected to the inner wall of the water tank through the elastic member.

[0012] Furthermore, the air extraction valve is switched on and off by a timing controller or a manually controlled wired controller; or the water outlet control valve is switched on and off by a timing controller or a manually controlled wired controller.

[0013] Furthermore, it also includes a water inlet pipe axially arranged in the water tank, and a plurality of water outlet holes are arranged on the water inlet pipe.

[0014] Furthermore, the first guide rail is composed of a plurality of guide rail assemblies, and a one-way limiting device is provided at the connection of the plurality of guide rail assemblies.

[0015] Furthermore, the water outlet control valve is arranged at the hot water outlet of the water tank, and the air extraction valve is arranged at the water inlet or outlet of the water tank.

[0016] The pneumatic water tank cleaning system of the present invention adopts a pneumatic layout and can control the operation of the cleaning device through timing control or manual start control. It can clean the scale accumulated on the inner wall of the water tank due to long-term use and the bacteria that grow there, so as to avoid affecting the water quality and the normal use of the water tank. It has a good cleaning effect and solves the problems that the water tank itself has no descaling ability or has a poor descaling effect. It also avoids the waste of water resources and can provide users with healthy and clean bath water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the water tank structure in which the pneumatic water tank cleaning system of the present invention is installed;

[0019] Figure 2-Figure 3 A schematic diagram of the internal structure of a water tank equipped with the pneumatic water tank cleaning system of the present invention;

[0020] Figure 4 A schematic diagram of the internal structure of the side wall of a water tank disc equipped with the pneumatic water tank cleaning system of the present invention;

[0021] Figure 5 It is a schematic diagram of the control structure of the pneumatic water tank cleaning system of the present invention.

[0022] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like Figure 1-Figure 3 As shown, the pneumatic water tank cleaning system of the present invention includes a cleaning brush 30, a first guide rail 32 arranged on the inner wall of the water tank, a water outlet control valve 10 and an air extraction valve 20. The cleaning brush 30 is movably connected to the first guide rail 32, and the first guide rail 32 can guide the movement of the cleaning brush 30. After the water outlet control valve 10 controls the water tank to be sealed, the air extraction valve 20 pneumatically drives the cleaning brush 30 to move along the air extraction port position close to or away from the air extraction valve 20 through air extraction and deflation, thereby cleaning the inner wall of the water tank.

[0025] The above-mentioned cleaning brush 30 can be a cylindrical cleaning brush 30. A first guide rail 32 extending along the inner wall is provided on the inner wall of the water heater tank. The cleaning brush 30 is pneumatically driven to move under the guidance of the first guide rail 32, so as to clean the inner wall of the water heater tank. The first guide rail 32 is provided on the inner wall of the water tank. When not in use, the cleaning brush 30 stays at one end of the water tank guide rail, such as the upper end or top of the water tank installation position away from the exhaust valve 20.

[0026] The first guide rail 32 is arranged along a position close to the inner wall of the water tank, and its arrangement form is various, as long as it can guide the cleaning brush 30 to clean the entire inner wall of the water tank, such as the entire inner wall of the curved inner wall and the flat disc inner wall of the water tank. The first guide rail 32 can be arranged on the inner wall of the water tank in a spiral ring shape, for example, along the radial or axial direction of the water tank, to guide the cleaning brush 30 to move spirally to complete the cleaning of the inner wall of the water tank. The first guide rail 32 is preferably arranged in a closed ring shape, such as a closed spiral ring shape, to guide the cleaning brush 30 to move back and forth in a cycle and clean the inner wall of the water tank.

[0027] For example, for a vertically arranged water heater, the first guide rail 32 may further include a vertical guide rail 322 and an inclined arc guide rail 321 ( Figure 3 The middle is a schematic diagram of a water tank cut open and laid out flat, the oblique guide rail is actually a curve), the vertical guide rail and the inclined arc guide rail include multiple groups and are connected to each other, and the multiple groups of vertical guide rails and inclined arc guide rails are preferably connected in sequence to form a closed ring.

[0028] The first guide rail 32 is also arranged at the plane disc-shaped inner wall in the water tank, and a retractable cleaning brush 301 is installed on the first guide rail 32, such as a straight-tube retractable cleaning brush 301, and the retractable cleaning brush 301 has a built-in retractable elastic member, such as a built-in retractable spring. When the retractable cleaning brush 301 cleans the plane disc-shaped inner wall along the first guide rail 32, when the retractable cleaning brush 301 moves to different positions, the length of the retractable cleaning brush 301 can be retracted to cover the size of the entire plane disc-shaped inner wall of the water tank, ensuring that the retractable cleaning brush 301 is in contact with the entire disc-shaped inner wall of the water tank.

[0029] like Figure 2-Figure 4 As shown, the cleaning brush 30 is movably connected to the inner wall of the water tank through an elastic member 31 such as a spring. For example, a second guide rail 34 is set at the bottom of the water tank inner tank. The cleaning brush 30 is movably set in the second guide rail 34 through an elastic member 31 connected to a pulley 33 at the end. One end of the elastic member 31 can move along the second guide rail 34 with the pulley 33. As needed, the second guide rail 34 is set along the axial or radial direction of the water tank. During cleaning, when the cleaning brush 30 stays at one end of the water tank inner tank (such as the upper end away from the position of the air extraction valve 20), the elastic member is in a natural state, the lower end of the elastic member is connected to the pulley 33, and the pulley 33 is set in the second guide rail 34. The pulley 33 can facilitate the end of the elastic member to move along the second guide rail 34 to allow the elastic member to move with the cleaning brush 30. Similarly, for the flat disc-shaped inner wall in the water tank, the above-mentioned retractable cleaning brush 301 is connected to the inner wall of the water tank through an elastic member. For the case of cleaning the flat disc-shaped inner wall, the above-mentioned retractable cleaning brush 301 can be movably connected or fixedly connected to the inner wall of the water tank through the elastic member. Since the cleaning brush 30 for cleaning the flat disc-shaped inner wall needs to move in a small range of cleaning, the elastic member connected to the cleaning brush 30 is movably and fixedly connected to the inner wall of the water tank, which can also meet the requirements.

[0030] like Figure 5As shown, the control method of the pneumatic water tank cleaning system of the present invention mainly adopts the method of parallel and series connection at the same time. The pneumatic water tank cleaning system can control the start-up operation of the pneumatic water tank cleaning system through a timer 51 or a manual method, wherein the timer control method mainly sets a fixed cleaning time to control the operation of the pneumatic water tank cleaning system, and the manual control mainly involves the user manually controlling the operation of the pneumatic water tank cleaning system by adjusting the control mode of the wire controller. The fixed time set by the timer 51 in the control module controls the start-up of the air extraction valve 20, and the control module manually starts or controls the start-up operation of the pneumatic water tank cleaning system by connecting to the water tank cleaning mode on the wire controller 52, that is, the timer mentioned above or the manual method is used to control the start-up operation of the pneumatic water tank cleaning system. When one of the two conditions is met, the pneumatic water tank cleaning system can be started. The manually operated control switch is connected in series with the pneumatic water tank cleaning system. For example, since the inner tank of the water tank only has water inlet (drain port) and hot water outlet ports connected to the outside, in order to ensure the sealing of the inner tank of the water tank during cleaning, a shut-off valve is installed at the hot water outlet, and the hot water outlet valve body is closed when cleaning begins. When the control switch is closed, the hot water outlet valve body is closed, and the air extraction valve 20 set at one end of the water tank extracts air from the closed water tank. Due to the air pressure difference between the air extraction position and the other positions, the air extraction can make the cleaning brush 30 run along the guide rail, that is, move toward the air extraction port. During the movement of the cleaning brush 30, the inner wall of the water tank is cleaned, thereby playing a role in cleaning the scale of the water tank. This air extraction valve 20 can use a timed clock control valve, for example, exhaust air for 5 seconds and deflate, and repeatedly inhale back and forth. When not in use, this control valve is fully open, allowing the cleaned sewage to be discharged from the water tank.

[0031] The above-mentioned water outlet control valve can be arranged at the hot water outlet 53 of the water tank, and the above-mentioned air extraction valve can be arranged at the water inlet or outlet 54 of the water tank.

[0032] In addition, different from the water inlet structure of the traditional water heater tank (i.e., water is inletted through the water inlet provided on the water tank, and no conduit is provided inside the water tank), the pneumatic water tank cleaning system of the present invention includes a water inlet pipe 40 axially arranged in the water tank, for example, axially arranged at the central axis position of the water tank, and preferably the axial dimension setting of the entire water tank is implemented, and the traditional water tank water inlet is changed to a water inlet pipe 40 extending axially from the water inlet at one end of the water tank (such as the bottom of the installation position) to the other end of the water tank (such as the top of the installation position) for water inlet, and a plurality of water outlet holes 41 are provided on the water inlet pipe 40. When the cleaning work is not being performed, the water outlet holes on the water inlet pipe 40 can be used to add water to the water heater tank. When the cleaning work is being performed, the air is evacuated from the closed water tank, so that the water pressure at the water outlet on the water inlet pipe 40 is increased, which is convenient for flushing the inner wall of the water tank.

[0033] Taking a vertically installed water heater as an example, the specific working process of the pneumatic water tank cleaning system of the present invention is described as follows: the above-mentioned water outlet control valve 10 can be set at the hot water outlet, and the air extraction valve 20 is set at the water inlet (drain outlet). When the instruction to start cleaning the water tank is obtained, all the water in the water tank is discharged, and then the water outlet control valve 10 of the hot water outlet is closed, and the air extraction valve 20 located at the drain outlet starts to extract air from the inside of the water tank. At this time, since the air pressure in the closed water tank is reduced and the water pressure in the water inlet pipe 40 remains unchanged, the water pressure sprayed out of the water inlet pipe 40 becomes larger, and the water sprayed onto the inner wall can effectively spray and clean. At the same time, due to the air extraction at the drain outlet (the bottom of the installation position), the air pressure at the end away from the drain outlet (the top of the installation position) is high, so that the cleaning brush 30 compresses the elastic part, and the cleaning brush 30 moves along the first guide rail 32 toward the drain outlet, for example, toward the lower part of the water tank installation position; when the cleaning brush 30 moves to the bottom of the water tank installation position, the air extraction valve 20 stops extracting air, and air enters the water tank to restore the elastic part, and the cleaning brush 30 moves along the first guide rail 32 away from the drain outlet, for example, toward the upper part of the water tank installation position. In this process, the cleaning brush 30 completes the cleaning of the inner wall of the water tank. The pulley 33 at the bottom of the elastic part can support the elastic part to move with the cleaning brush 30, and discharge the cleaned sewage through the drain outlet. In this way, the inner wall of the water tank can be cleaned by sliding repeatedly several times.

[0034] The guide rail can be composed of multiple guide rail assemblies. In order to prevent the cleaning brush 30 from moving in the opposite direction along the guide rail when the vacuum is stopped, such as returning to the original path along the inclined arc guide rail, a one-way limit device is set at the connection of multiple guide rail assemblies, such as a one-way buckle device is installed at the connection between the inclined arc guide rail and the vertical guide rail, which only allows the cleaning brush 30 to move in one direction at the connection between the inclined arc guide rail and the vertical guide rail. The one-way buckle device can be a conical elastic buckle. The cleaning brush 30 can pass through the connection position of the guide rail assembly in a single direction. When the cleaning brush 30 passes through the connection position of the guide rail assembly in the opposite direction, the conical elastic buckle blocks and limits the cleaning brush 30.

[0035] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pneumatic water tank cleaning system, characterized in that: The utility model comprises a cleaning brush, a first guide rail arranged on the inner wall of a water tank, a water outlet control valve and an air extraction valve, wherein the cleaning brush is movably connected to the first guide rail, the first guide rail can guide the cleaning brush to move, the water outlet control valve controls the water tank to be sealed or opened, the air extraction valve drives the cleaning brush in the water tank to move along the air extraction port position close to the air extraction valve by exhausting air; the air extraction valve drives the cleaning brush in the water tank to move along the air extraction port position away from the air extraction valve by releasing air, thereby driving the cleaning brush to move and clean the inner wall of the water tank; The first guide rail is in a closed ring shape; the first guide rail is composed of a plurality of guide rail components, and a one-way limit device is provided at the connection of the plurality of guide rail components; The first guide rail is arranged on the inner wall of the water tank in a spiral ring shape; the first guide rail includes a vertical guide rail and an inclined arc guide rail, and the vertical guide rail and the inclined arc guide rail are connected to each other; When starting to clean the water tank, all the water in the water tank is discharged, and then the water outlet control valve controls the water tank to be sealed, and the air extraction valve extracts air from the inside of the water tank to reduce the air pressure in the sealed water tank.

2. The pneumatic water tank cleaning system according to claim 1, characterized in that: The cleaning brush is a retractable cleaning brush.

3. The pneumatic water tank cleaning system according to any one of claims 1, characterized in that: The cleaning brush is movably or fixedly connected to the inner wall of the water tank through an elastic member.

4. The pneumatic water tank cleaning system according to claim 3, characterized in that: The inner wall of the water tank is also provided with a second guide rail, and the cleaning brush is movably arranged in the second guide rail through an elastic member whose end is connected with a pulley, so that the cleaning brush is movably connected with the inner wall of the water tank through the elastic member.

5. The pneumatic water tank cleaning system according to any one of claims 1, characterized in that: The air extraction valve is switched on and off by a timing controller or a manually controlled wired controller; or the water outlet control valve is switched on and off by a timing controller or a manually controlled wired controller.

6. The pneumatic water tank cleaning system according to any one of claims 1, characterized in that: It also includes a water inlet pipe axially arranged in the water tank, and a plurality of water outlet holes are arranged on the water inlet pipe.

7. The pneumatic water tank cleaning system according to claim 1, characterized in that: The water outlet control valve is arranged at the hot water outlet of the water tank, and the air extraction valve is arranged at the water inlet or outlet of the water tank.

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