New type of sealing mechanism for charging port of cleaning machine

Abstract

This utility model provides a novel charging port sealing mechanism for a cleaning machine, including a front cover, a charging terminal, and a charging cover. The charging terminal includes a built-in charging terminal. The front cover has a charging port that matches the charging terminal, and also has a drain outlet with an internal drainage channel. The charging cover is equipped with a charging port seal and a drain outlet seal. The charging port seal is sealed to the charging terminal via a charging terminal sealing disc, and the drain outlet seal is sealed to the drainage channel via a drain outlet sealing gasket. This utility model, by using a charging cover with two seals—a charging port seal and a drain outlet seal—and further sealing through the charging terminal sealing disc and drain outlet sealing gasket, makes the charging port waterproof, protecting the internal circuitry from external liquid corrosion and short circuits. It also reduces costs, facilitates installation, makes the product appearance more novel, optimizes the mechanism for easier operation, and improves the safety of electrical components.

Description

Technical Field

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

[0002] In real life, cleaning machines need to come into contact with water and other liquids during use, which can lead to water ingress and failure. In particular, lithium battery portable cleaning machines have non-waterproof charging ports, which can cause water to enter and cause short circuits or fires in the internal circuitry when in use.

[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] Therefore, there is a need to provide a new type of sealing mechanism for the charging port of a cleaning machine, which makes the charging port waterproof, protects the internal circuit from external liquid corrosion and short circuits, and improves the safety of electrical components. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a new type of charging port sealing mechanism for a cleaning machine.

[0006] According to the present invention, a novel charging port sealing mechanism for a cleaning machine includes: a front cover, a charging terminal, and a charging cover. The charging terminal includes a built-in charging terminal. The front cover has a charging port that matches the charging terminal. The front cover also has a drain outlet and a drain channel formed inside. The charging cover is provided with a charging port seal and a drain outlet seal. The charging port seal is sealed to the charging terminal through a charging terminal sealing disc. The drain outlet seal is sealed to the drain channel through a drain outlet sealing gasket.

[0007] The charging port seal has a slot inside that matches the charging terminal, and the charging terminal is inserted into the charging port seal with an interference fit.

[0008] The end of the drain outlet seal is mushroom-shaped, and the drain outlet does not allow the drain outlet seal to pass through.

[0009] Preferably, the charging cover includes a rubber cover.

[0010] Preferably, the charging cover further includes a charging cover body, which is sheet-shaped, and the front cover is provided with a groove matching its thickness. The charging cover body is fitted to the bottom and walls of the groove.

[0011] Preferably, the inner wall of the drain outlet has a protrusion, and the charging port seal is stepped, including a large annular portion and a small annular portion. The large annular portion is fitted to the inner wall of the drain outlet, and the small annular portion is sealed to the protrusion.

[0012] Preferably, the charging terminal includes a DC power plug, the charging terminal sealing disc includes an L-shaped sealing disc, the charging terminal sealing disc is disposed between the inner wall of the drain outlet and the outer wall of the charging terminal, and is sealed to the small annular portion.

[0013] Preferably, the small annular portion is inserted between the outer ring and the center pin of the charging terminal, and the diameter of the slot inside the small annular portion matches the diameter of the center pin of the charging terminal.

[0014] Preferably, the drain outlet seal includes a large cylindrical portion, a small cylindrical portion, and a mushroom-shaped end portion arranged sequentially from the outside to the inside. The large diameter side of the mushroom-shaped end portion 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 portion. The step at the outlet of the drain outlet is sealed to the large cylindrical portion.

[0015] Preferably, the diameter of the drainage channel is larger than the diameter of the mushroom-shaped end, and the drainage channel is connected to the external environment when the large cylindrical part separates from the step at the outlet of the drainage port.

[0016] Preferably, the drain outlet sealing gasket is disposed on the smaller diameter side of the mushroom-shaped end, and the inner diameter of the drain outlet sealing gasket does not exceed the diameter of the smaller diameter side of the mushroom-shaped end.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention achieves waterproofing at the charging port by using a charging cover with two seals: a charging port seal and a drain port seal. The moving parts also have corresponding drainage channels. Further sealing by the charging terminal sealing disc and the drain port sealing gasket ensures the entire charging port is waterproof, protecting the internal circuitry from external liquid corrosion and short circuits. Using fewer rubber parts for sealing between mechanisms reduces costs, facilitates installation, and results in a more novel product appearance. The optimized mechanism simplifies operation and improves the safety of electrical components. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is a schematic diagram showing the structure of the front cover, which is the main feature of this utility model.

[0021] Figure 2 This utility model mainly embodies Figure 1 A schematic diagram of a new charging port sealing mechanism for a cleaning machine with a cross-section of AA.

[0022] Figure 3 This is a schematic diagram illustrating the opening of the novel charging port sealing mechanism of the cleaning machine, which is the main feature of this utility model.

[0023] Figure 4 This is a schematic diagram illustrating the charging process of the cleaning machine, which is the main feature of this utility model.

[0024] Figure label:

[0025] Front cover 1; Charging terminal 2; Charging port seal 3

[0026] 4. Drain outlet seal 5. Charging terminal sealing disc 6. Drain outlet sealing gasket Detailed Implementation

[0027] 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.

[0028] like Figure 1-4As shown, a novel charging port sealing mechanism for a cleaning machine according to this utility model includes: a front cover 1, a charging terminal 2, and a charging cover. The charging terminal 2 includes a built-in charging terminal. The front cover 1 has a charging port that matches the charging terminal 2. The front cover 1 also has a drain outlet and a drain channel formed inside. The charging cover is provided with a charging port seal 3 and a drain outlet seal 4. The charging port seal 3 is sealed to the charging terminal 2 through a charging terminal sealing disc 5. The drain outlet seal 4 is sealed to the drain channel through a drain outlet sealing gasket 6. The charging port seal 3 has a slot that matches the charging terminal 2 inside. The charging terminal 2 and the charging port seal 3 are inserted into each other with an interference fit. The end of the drain outlet seal 4 is mushroom-shaped, and the drain outlet seal 4 is not allowed to pass through the drain outlet.

[0029] The charging cover includes a rubber cover. The charging cover, the charging terminal sealing disc 5, and the drain outlet sealing gasket 6 are preferably made of soft rubber. The charging terminal 2 and the charging port sealing member 3 are interference-fitted to form a sealed space, and the mushroom-shaped end of the drain outlet sealing member 4 is fitted with the drain outlet so that the charging cover can move while forming a drainage channel.

[0030] The charging cover also includes a charging cover body, which is sheet-shaped. The front cover 1 has a groove that matches its thickness, and the charging cover body fits snugly to the bottom and walls of the groove.

[0031] The inner wall of the drain outlet has a protrusion, and the charging port seal 3 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.

[0032] The charging terminal 2 includes a DC power plug, and the charging terminal sealing plate 5 includes an L-shaped sealing plate. The charging terminal sealing plate 5 is disposed between the inner wall of the drain outlet and the outer wall of the charging terminal, and is sealed to the small circular ring.

[0033] The small circular part is inserted between the outer ring of the charging terminal 2 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 2.

[0034] The drain outlet seal 4 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.

[0035] 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.

[0036] The drain outlet sealing gasket 6 is located on the small diameter side of the mushroom-shaped end, and the inner diameter of the drain outlet sealing gasket 6 does not exceed the diameter of the small diameter side of the mushroom-shaped end.

[0037] 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.

[0038] When charging is needed, pull out the charging cover, flip it over, and the charging port seal 3 will separate from the charging terminal 2 and leave the charging port. The charging port seal 3 will also separate from the drain port sealing gasket 6 but will not leave the drain port. Due to the loosening of the drain port sealing gasket 6, the drainage channel is open, allowing the internal moving parts to drain accumulated water. After fully charging, simply insert the charging cover back in.

[0039] This application further seals the charging port with a charging terminal sealing disc 5 and a drain outlet sealing gasket 6, 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 two seals, a charging port seal 3 and a drain outlet seal 4, 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.

[0040] 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.

[0041] 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 novel seal mechanism for a charging port of a cleaning machine, characterized in that, include: The front cover (1), charging terminal (2) and charging cover are provided. The charging terminal (2) includes a built-in charging terminal. The front cover (1) is provided with a charging port that matches the charging terminal (2). The front cover (1) is also provided with a drain outlet and a drain channel is formed inside. The charging cover is provided with a charging port seal (3) and a drain outlet seal (4). The charging port seal (3) is sealed to the charging terminal (2) through a charging terminal sealing disc (5). The drain outlet seal (4) is sealed to the drain channel through a drain outlet sealing gasket (6). The charging port seal (3) has a slot inside that matches the charging terminal (2), and the charging terminal (2) is inserted into the charging port seal (3) with an interference fit. The end of the drain seal (4) is mushroom-shaped, and the drain does not allow the drain seal (4) to pass through.

2. The novel charging port sealing mechanism for a cleaning machine as described in claim 1, characterized in that, The charging cover includes a rubber cover.

3. The novel charging port sealing mechanism for a cleaning machine as described in claim 1, characterized in that, The charging cover also includes a charging cover body, which is sheet-shaped. The front cover (1) is provided with a groove that matches its thickness. The charging cover body is fitted to the bottom and wall of the groove.

4. The novel charging port sealing mechanism for a cleaning machine as described in claim 1, characterized in that, The inner wall of the drain outlet has a protrusion, and the charging port seal (3) is stepped and includes a large ring and a small ring. The large ring is fitted to the inner wall of the drain outlet, and the small ring is sealed to the protrusion.

5. The novel charging port sealing mechanism for a cleaning machine as described in claim 4, characterized in that, The charging terminal (2) includes a DC power plug, and the charging terminal sealing plate (5) includes an L-shaped sealing plate. The charging terminal sealing plate (5) is disposed between the inner wall of the drain outlet and the outer wall of the charging terminal, and is sealed to the small annular portion.

6. The novel charging port sealing mechanism for a cleaning machine as described in claim 4, characterized in that, The small circular part is inserted between the outer ring and the center pin of the charging terminal (2), and the diameter of the slot inside the small circular part matches the diameter of the center pin of the charging terminal (2).

7. The novel charging port sealing mechanism for a cleaning machine as described in claim 1, characterized in that, The drain outlet seal (4) 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.

8. The novel charging port sealing mechanism for a cleaning machine as described in claim 7, characterized in that, 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.

9. The novel charging port sealing mechanism for a cleaning machine as described in claim 1, characterized in that, The drain outlet sealing gasket (6) is disposed on the small diameter side of the mushroom head end, and the inner diameter of the drain outlet sealing gasket (6) does not exceed the diameter of the small diameter side of the mushroom head end.

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