Waterproof screen display sealing mechanism of cleaning machine

Abstract

The waterproof screen display sealing mechanism of the cleaning machine comprises a lithium battery, a PCB digital control screen, a front cover and an outer screen sticker which are sequentially arranged on a front shell from inside to outside, the lithium battery is installed in a battery box in a sealed mode, the PCB digital control screen is installed in an electric control box in a sealed mode, and the lithium battery is connected with the PCB digital control screen through a plug-in terminal; a function display area, a key area and a charging port are formed in the outer screen sticker, a charging cover is installed on the charging port in a sealed mode, and the front shell and the outer screen sticker are matched to form a closed cavity. According to the utility model, the components are sequentially connected with the screen display assembly to form a closed cavity, so that internal electrical components are not invaded by external liquid, the electrical components are firmly closed in the closed cavity in a sealing manner, the integration of waterproof and numerical control functions is realized, and the whole assembly has a higher waterproof characteristic; while the cost is reduced, the installation is convenient, the product appearance is more novel, the mechanism is optimized, the operation is simple and convenient, and the safety of electrical components is improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning machine technology, specifically to a waterproof screen sealing mechanism for a cleaning machine. Background Technology

[0002] In real life, cleaning machines often come into contact with water and other liquids during use, which can lead to water ingress and malfunction. In particular, portable lithium-ion cleaning machines often have non-waterproof charging ports, which can cause water to enter and potentially lead to short circuits, burnouts, or fires when exposed to water. Therefore, there is an urgent need for an effective solution to address this problem.

[0003] A Chinese patent with publication number CN110052342B discloses a waterproof, rechargeable, amphibious high-pressure washer, comprising: a housing; a motor-pump unit; and a rechargeable battery. The motor-pump unit includes: a motor comprising a motor shaft, a rotor, and a stator core housed within the motor housing; the rotor being mounted on the motor shaft, and the stator core being located outside the rotor; a mini-pump having a pump inlet and a high-pressure outlet on the pump housing; the motor housing having a sealed cavity I and an inner shell, with the rotor and stator core housed within the sealed cavity I, and the stator core tightly attached to the inner shell to form a heat conduction channel; the motor housing having at least one cooling channel I, a water inlet I, and a water outlet I; the water inlet I being connected to an external water source, and the water outlet I being connected to the pump inlet; the housing having a waterproof rating of not less than IPX7.

[0004] Existing cleaning machines use a waterproof button module circuit to control power on / off and select high / low cleaning levels. The machine is powered by a battery pack, which needs to be removed and recharged when low on power, then reinstalled. An internal high-pressure pump connects to a water tank, and the machine (pump) is connected to the spray gun via a high-pressure hose, enabling high-pressure cleaning. However, charging requires removing the battery pack from the battery compartment, fully charging it, and then reinstalling it, which is cumbersome. The battery compartment is not completely waterproof, posing a risk of short circuits due to water ingress. A separate charging dock is required, making the machine less portable and increasing manufacturing costs. Furthermore, there is no visual control, and the operating status cannot be monitored in real time.

[0005] Therefore, there is a need to provide a waterproof screen sealing mechanism for a cleaning machine that can not only achieve waterproof CNC function integration, but also make the overall cleaning machine have high waterproof characteristics, reduce costs and facilitate installation, while improving the safety of electrical components. Utility Model Content

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a waterproof screen sealing mechanism for a cleaning machine.

[0007] According to the present invention, a waterproof screen sealing mechanism for a cleaning machine includes, from the inside out, the following components are arranged on the front shell: a lithium battery, a PCB digital control screen, a front cover, and an outer screen sticker. The lithium battery is sealed and installed in the battery box, and the PCB digital control screen is sealed and installed in the electrical control box. The lithium battery and the PCB digital control screen are connected through connector terminals.

[0008] The outer screen has a function display area, a button area and a charging port. The charging port is sealed with a charging cover. The front shell and the outer screen cooperate to form a sealed cavity.

[0009] Preferably, the battery box has an opening only on the side closest to the PCB digital control screen, and the opening side of the battery box is sealed to the control box by a first sealing ring, which is a rubber component.

[0010] Preferably, the battery box has a U-shaped outer edge on the open side, and the control box has a protrusion on the side near the battery box. The protrusion of the battery box is fastened to the outer edge of the battery box by fasteners.

[0011] Preferably, the electrical control box has an opening only on one side near the front cover, and the opening side of the electrical control box is sealed to the front cover by a second sealing ring, which is a rubber component.

[0012] Preferably, a slot is formed on the side of the front cover near the electrical control box, and the open end of the electrical control box is inserted into the slot and sealed by the second sealing ring.

[0013] Preferably, the outer screen protector comprises a flexible semi-transparent material screen and is adhered to the front side of the front cover by adhesive backing.

[0014] Preferably, the button area includes: a power button and a gear selector button.

[0015] Preferably, the PCB digital control screen is connected to a waterproof controller via a communication cable.

[0016] Preferably, the electrical control box has a through hole that allows the communication cable to pass through, and a wire plug is sealed and installed at the through hole. The wire plug is a rubber part.

[0017] Preferably, the charging port is provided with a built-in charging terminal, and the charging cover is sealed and installed at the charging port by a sealing gasket and a sealing plate, wherein the sealing gasket, the sealing plate and the charging cover are all rubber parts.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model forms a closed cavity by sequentially connecting the various components of the display assembly, thereby protecting the internal electrical components from external liquid intrusion. It has a sealing property that firmly encloses the electrical components, not only achieving waterproof CNC function integration, but also giving the overall assembly a high degree of waterproof performance. It reduces costs and facilitates installation, while making the product appearance more novel, optimizing the mechanism for easy operation, and improving the safety of electrical components. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is an exploded view of the waterproof screen sealing mechanism of the cleaning machine, which is the main feature of this utility model.

[0022] Figure 2 This is a front view of the waterproof screen sealing mechanism of the cleaning machine, which is the main feature of this utility model.

[0023] Figure 3 This utility model mainly embodies Figure 2 AA section diagram;

[0024] Figure 4 This utility model mainly embodies Figure 2 Middle BB section view;

[0025] Figure 5 This utility model mainly embodies the overall structure of a cleaning machine equipped with a waterproof screen sealing mechanism.

[0026] Figure label:

[0027] Front casing 1, Battery box 2, Lithium battery 3

[0028] 4. First sealing ring; 5. Wire plug; 6. Electrical control box.

[0029] 7. Sealing gasket; 8. PCB digital control screen; 9. Sealing plate.

[0030] Second sealing ring 10, front cover 11, outer screen sticker 12

[0031] Charging cover 13 Communication cable 14 Detailed Implementation

[0032] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0033] like Figure 1-5 As shown, the waterproof screen sealing mechanism for a cleaning machine provided by this utility model includes, from the inside to the outside, the following components arranged sequentially on the front shell 1: a lithium battery 3, a PCB digital control screen 8, a front cover 11, and an outer screen sticker 12. The lithium battery 3 is sealed and installed in the battery box 2, and the PCB digital control screen 8 is sealed and installed in the electrical control box 6. The lithium battery 3 and the PCB digital control screen 8 are connected by a connector terminal. The outer screen sticker 12 has a function display area, a button area, and a charging port, integrating the overall electrical control and display functions of the machine. The charging port is sealed and installed with a charging cover 13. The front shell 1 and the outer screen sticker 12 cooperate to form a sealed cavity.

[0034] The battery box 2 has an opening only on one side near the PCB digital control screen 8. The opening side of the battery box 2 is sealed to the control box 6 through the first sealing ring 4, which is a rubber part.

[0035] The battery box 2 has a U-shaped outer edge on the open side, and the control box 6 has a protrusion on the side near the battery box 2. The protrusion of the battery box 2 is fastened to the outer edge of the battery box 2 by fasteners.

[0036] The electrical control box 6 has an opening only on one side near the front cover 11. The opening side of the electrical control box 6 is sealed to the front cover 11 by a second sealing ring 10, which is a rubber part.

[0037] A slot is formed on the side of the front cover 11 near the electrical control box 6. The open end of the electrical control box 6 is inserted into the slot and sealed by the second sealing ring 10.

[0038] The outer screen protector 12 includes a flexible semi-transparent screen and is attached to the front side of the front cover 11 with adhesive backing.

[0039] The button area includes an on / off switch and a gear selector button, which control the machine and display information such as battery level, working pressure, and intensity level. Furthermore, the outer screen sticker 12 is made of flexible, waterproof material and can also be equipped with function buttons. When powered on, it can simultaneously monitor the machine's operating status, including real-time working pressure monitoring, battery level display, and charging status.

[0040] The PCB digital control panel 8 is connected to a waterproof controller via communication cable 14. The lithium battery 3 and the PCB digital control panel 8 are connected via connectors and placed within the battery box 2 and the electrical control box 6. The waterproof controller is connected to the PCB digital control panel 8 via communication cable 14, and the high-pressure pump is connected to the controller to control the entire circuit. All connectors are located in the battery box 2; the waterproof controller is located in a fixed position within the main unit.

[0041] The electrical control box 6 has a through hole that allows the communication cable 14 to pass through, and a wire plug 5 is sealed and installed at the through hole. The wire plug 5 is a rubber part.

[0042] The charging port has a built-in charging terminal. The charging cover 13 is sealed to the charging port by a sealing gasket 7 and a sealing plate 9. All components, including the sealing gasket 7, sealing plate 9, and charging cover 13, are made of rubber. Charging is convenient; the built-in lithium battery can be charged directly with a charger without removing the battery.

[0043] The front cover 1 has a charging port that matches the charging terminal. The front cover 1 also has a drain outlet with a drainage channel inside. The charging cover 13 is provided with a charging port seal and a drain outlet seal. The charging port seal is sealed to the charging terminal through a sealing plate 9, and the drain outlet seal is sealed to the drainage channel through a sealing gasket 7. The charging port seal has a slot that matches the charging terminal inside. The charging terminal and the charging port seal are inserted into each other with an interference fit. The end of the drain outlet seal is mushroom-shaped, and the drain outlet does not allow the drain outlet seal to pass through.

[0044] The charging cover 13 includes a rubber cover. The charging cover, sealing disc 9, and sealing gasket 7 are preferably made of soft rubber. The charging terminal and the charging port seal are interference-fitted to form a sealed space, and the mushroom-shaped end of the drain port seal engages with the drain port so that the charging cover 13 can move while forming a drainage channel.

[0045] The charging cover 13 also includes a charging cover body, which is sheet-shaped. The front shell 1 has a groove that matches its thickness, and the charging cover body fits snugly to the bottom and walls of the groove.

[0046] The inner wall of the drain outlet has a protrusion, and the charging port seal is stepped, including a large ring and a small ring. The large ring fits into the inner wall of the drain outlet, and the small ring is sealed to the protrusion.

[0047] The charging terminal includes a DC power plug, and the sealing plate 9 includes an L-shaped sealing plate. The sealing plate 9 is disposed between the inner wall of the drain outlet and the outer wall of the charging terminal, and is sealed to the small ring portion.

[0048] The small circular part is inserted between the outer ring of the charging terminal and the center pin, and the diameter of the slot inside the small circular part matches the diameter of the center pin of the charging terminal.

[0049] The drain outlet seal includes a large cylindrical part, a small cylindrical part, and a mushroom-shaped end, arranged sequentially from the outside to the inside. The large diameter side of the mushroom-shaped end is close to the outlet of the drain outlet. The outlet of the drain outlet is tapered inward to form a step. The diameter of the outlet of the drain outlet is smaller than the large diameter side of the mushroom-shaped end. The step at the outlet of the drain outlet is sealed to the large cylindrical part.

[0050] The diameter of the drainage channel is larger than the diameter of the mushroom-shaped end. When the large cylindrical part separates from the step at the outlet of the drainage port, the drainage channel is connected to the external environment.

[0051] The sealing gasket 7 is disposed on the small diameter side of the mushroom-shaped end, and the inner diameter of the sealing gasket 7 does not exceed the diameter of the small diameter side of the mushroom-shaped end.

[0052] When the cleaning machine is in use, the charging cover is sealed to the charging port and the drain outlet to form a waterproof and airtight space. This makes the charging terminals waterproof and prevents external water stains from easily penetrating into the interior and causing electrical components to fail.

[0053] When charging is needed, pull out the charging cover, flip it over, and the charging port seal will separate from the charging terminal and move away from the charging port. The charging port seal will separate from the sealing gasket 7 but cannot move away from the drain outlet. Due to the loosening of the sealing gasket 7, the drainage channel is open, allowing the internal moving parts to drain accumulated water. After fully charging, simply insert the charging cover back in.

[0054] This application further seals the charging port with a sealing disc 9 and a sealing gasket 7, making the entire charging port waterproof and protecting the internal circuitry from short circuits caused by external liquids. This application achieves waterproofing at the charging port by using a charging cover with both a charging port seal and a drain port seal, and the moving parts have corresponding drainage channels. This application uses fewer rubber parts for sealing between mechanisms, reducing costs and facilitating installation while resulting in a more novel product appearance, optimized mechanism for easy operation, and improved safety of electrical components.

[0055] The waterproof screen sealing mechanism of the cleaning machine of this application forms a closed cavity by sequentially connecting the screen components, thereby preventing the internal electrical components from being disturbed by external liquids. It has a sealing property that firmly seals the electrical components inside, which not only realizes the integration of waterproof CNC functions, but also makes the overall component have high waterproof characteristics.

[0056] This application is mainly used in cleaning machines, which also include water tanks, main units, high-pressure pipes, spray guns and other structures. The whole machine solves the common problem of weak waterproofing of electrical components in daily use of cleaning machines. It is easy to operate and carry, the display function enhances the technological feel of the product, and the product has a novel and elegant appearance. It fills a market gap and has broad market prospects.

[0057] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A waterproof screen sealing mechanism for a cleaning machine, characterized in that, The following components are arranged sequentially from the inside to the outside on the front shell (1): lithium battery (3), PCB digital control screen (8), front cover (11) and outer screen sticker (12). The lithium battery (3) is sealed in the battery box (2), the PCB digital control screen (8) is sealed in the electrical control box (6), and the lithium battery (3) and the PCB digital control screen (8) are connected by a connector terminal. The outer screen sticker (12) has a function display area, a button area and a charging port. The charging port is sealed with a charging cover (13). The front shell (1) and the outer screen sticker (12) cooperate to form a sealed cavity.

2. The waterproof screen sealing mechanism for the cleaning machine as described in claim 1, characterized in that, The battery box (2) has an opening only on one side near the PCB digital control screen (8). The opening side of the battery box (2) is sealed to the electrical control box (6) by a first sealing ring (4), which is a rubber part.

3. The waterproof screen sealing mechanism for the cleaning machine as described in claim 2, characterized in that, The battery box (2) has a zig-shaped outer edge on the open side, and the electrical control box (6) has a protrusion on the side near the battery box (2). The protrusion of the battery box (2) is fastened to the outer edge of the battery box (2) by fasteners.

4. The waterproof screen sealing mechanism for the cleaning machine as described in claim 1, characterized in that, The electrical control box (6) has an opening only on one side near the front cover (11). The opening side of the electrical control box (6) is sealed to the front cover (11) by a second sealing ring (10), which is a rubber part.

5. The waterproof screen sealing mechanism for the cleaning machine as described in claim 4, characterized in that, The front cover (11) has a slot on the side near the electrical control box (6), and the open end of the electrical control box (6) is inserted into the slot and sealed by the second sealing ring (10).

6. The waterproof screen sealing mechanism for the cleaning machine as described in claim 1, characterized in that, The outer screen protector (12) includes a flexible semi-transparent material screen and is attached to the front side of the front cover (11) by adhesive backing.

7. The waterproof screen sealing mechanism for the cleaning machine as described in claim 1, characterized in that, The button area includes: power button and gear selector button.

8. The waterproof screen sealing mechanism for the cleaning machine as described in claim 1, characterized in that, The PCB digital control screen (8) is connected to a waterproof controller via a communication cable (14).

9. The waterproof screen sealing mechanism for a cleaning machine as described in claim 8, characterized in that, The electrical control box (6) has a through hole that allows the communication cable (14) to pass through. A wire plug (5) is sealed and installed at the through hole. The wire plug (5) is a rubber part.

10. The waterproof screen sealing mechanism for a cleaning machine as described in claim 1, characterized in that, The charging port is equipped with a built-in charging terminal. The charging cover (13) is sealed and installed at the charging port by a sealing gasket (7) and a sealing plate (9). The sealing gasket (7), the sealing plate (9) and the charging cover (13) are all rubber parts.

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