KR102616876B1 - A cushion pad for a wet dustcloth robot - Google Patents

Abstract

The present invention includes a disc-shaped pad body; A centering hole formed to penetrate upward and downward in the central area of the upper surface of the main body and coupled to the rotation axis of the wet mop robot vacuum cleaner; an annular recess formed to be recessed downward along a peripheral area adjacent to the centering hole on the upper surface of the main body; a plurality of water supply holes arranged radially along the bottom surface of the recess and penetrating upward and downward; Hook-type Velcro provided on the lower surface of the main body for attaching a wet mop; And a loop-type Velcro provided on the upper surface of the main body for attachment to a rotating plate equipped with the rotating axis of the wet mop robot cleaner. By implementing it to include a wet mop, water is evenly supplied to the wet mop to wet it evenly, allowing quick and clean mopping. This relates to a cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure.

Description

Cushion pad for wet mop robot vacuum cleaner with improved water supply structure {A CUSHION PAD FOR A WET DUSTCLOTH ROBOT}

The present invention relates to a cushion pad for a wet mop robot vacuum cleaner, and in particular, a cushion for a wet mop robot vacuum cleaner with an improved water supply structure that prevents the water supplied into the cushion pad from scattering and allows it to be more evenly supplied to the wet mop side through the water supply hole. This is a technology related to pads.

A robot vacuum cleaner is a device that performs cleaning tasks while traveling within the cleaning area on its own.

In general, robot vacuum cleaners mainly perform the dirt suction function of sucking up dust and other impurities from the surface being cleaned while traveling on their own, but recently, they can remove foreign substances and dirt stuck to the surface by wet mopping the surface being cleaned. A wet mop robot vacuum cleaner is being introduced, and the wet mop robot vacuum cleaner is equipped with a cushion pad for attaching a wet mop, and the water supplied to the cushion pad is supplied to the wet mop side, allowing wet mopping of the surface being cleaned.

Technologies related to these cushion pads include:

Republic of Korea Patent Registration No. 10-2192931 (registered on December 14, 2020, hereinafter referred to as ‘Document 1’) 『Disposable non-woven cleaning pad』 is presented,

Document 1 includes a fabric buffer portion that is attached to a push mop plate such as a vacuum cleaner or a push mop handle and has a certain thickness; and a woven fabric coupled to the fabric buffer, including a woven fabric portion with protruding thin needle hook yarns for bonding the cleaning non-woven fabric, thereby creating a vacuum cleaner using a mop pad used in daily life. This is a technology for disposable non-woven cleaning pads designed to be applicable to most types of mop handles and mop handles.

As another technology, Korea Patent Registration No. 10-2253787 (registered on May 13, 2021, hereinafter referred to as 'Document 2') 'Attachment pad for dual rotation steam mop cleaner' is proposed,

Document 2 is formed on the upper surface of the pad to which the vacuum cleaner is attached, the lower surface of the pad to which the cleaning cloth is attached, and the upper surface of the pad, and includes a water hole through which water supplied from the vacuum cleaner flows, so that it has the same adhesion as a conventional cleaning pad and at the same time removes water from the vacuum cleaner. This is a technology for a cleaning cloth attachment pad for a dual rotation steam mop cleaner that can stably pass drained water through the cleaning cloth.

As another technology, Republic of Korea Patent Registration No. 10-2282370 (registered on July 21, 2021, hereinafter referred to as ‘Document 3’) ‘Adhesive cleaning pad and method of manufacturing the same’ is proposed,

Document 3 is an adhesive composition prepared to adhere to the bottom of a cleaning fabric attached to a cleaning push rod; and a web is formed by staple fibers with a fineness of 3 to 50 Denier, and when impregnated with the adhesive composition This technology relates to an adhesive cleaning pad and a method of manufacturing the same, including a biodegradable non-woven fabric portion that forms an adhesive composition penetration space through which the adhesive composition can penetrate, and is integrally prepared with the adhesive composition by impregnating it with the adhesive composition and drying it.

Another technology, Republic of Korea Patent Registration No. 10-2321271 (registered on October 28, 2021, hereinafter referred to as ‘Document 4’), ‘Mop cloth attachment pad for wet mop vacuum cleaner’ is proposed,

Document 4 has an inner hole formed in the center of the attachment pad, which not only reduces vibration and noise caused by high-speed rotation, but also allows the inner and outer edges of the attachment pad to be easily finished, resulting in excellent machining workability. Technology for a mop attachment pad for a wet mop cleaner that can not only improve durability by preventing problems such as damage to the seam line due to frequent friction during floor cleaning work, but also greatly increase economic efficiency by reducing costs and improving productivity. am.

Document 1. Republic of Korea Patent Registration No. 10-2192931 (registered on December 14, 2020) Document 2. Republic of Korea Patent Registration No. 10-2253787 (registered on May 13, 2021) Document 3. Republic of Korea Patent Registration No. 10-2282370 (registered on July 21, 2021) Document 4. Republic of Korea Patent Registration No. 10-2321271 (registered on October 28, 2021)

The present invention is such that the water supplied to the wet mop attached to the lower surface of the cushion pad is not scattered by the recess space on the upper surface of the cushion pad, but is evenly supplied through each water supply hole biased on the outer wall of the recess. The purpose is to provide a cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure.

Furthermore, the present invention provides a cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure that allows evenly supplied water to evenly wet the wet mop, making it easier to clean the surface being cleaned and allowing clean mopping. There is a purpose.

In addition, the present invention provides a centering cap for coupling with the rotation axis of the robot vacuum cleaner, and in particular, the inner circular ring is elastically pushed to expose a portion to the outside, and the interaction between the rotating plate of the robot vacuum cleaner and the cushion pad body is achieved through a male and female Velcro structure. After the rotation axis and the circular ring are combined with each other before attachment, when the circular ring returns, the male and female Velcro between the rotating plate and the cushion pad body are attached to each other, creating a cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure that facilitates centering setting of the cushion pad. The purpose is to provide.

In order to solve the above-mentioned problems, the cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure according to the present invention,

Disc-shaped pad body;

A centering hole formed to penetrate upward and downward in the central area of the upper surface of the main body and coupled to the rotation axis of the wet mop robot vacuum cleaner;

an annular recess formed to be recessed downward along a peripheral area adjacent to the centering hole on the upper surface of the main body;

a plurality of water supply holes arranged radially along the bottom surface of the recess and penetrating upward and downward;

Hook-type Velcro provided on the lower surface of the main body for attaching a wet mop; and

Loop-type Velcro provided on the upper surface of the main body for attachment to a rotating plate equipped with a rotating axis of the wet mop robot vacuum cleaner;

It is characterized by including.

The cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure according to the present invention,

By supplying water evenly to the wet mop to wet it evenly, the greatest effect is to be able to mop quickly and cleanly.

1 is a three-dimensional diagram showing a cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure according to the present invention;
Figure 2 is a plan view of Figure 1;
Figure 3 is a cross-sectional three-dimensional diagram of Figure 1;
4 is an exploded three-dimensional diagram showing the first centering cap;
Figure 5 is a combined cross-sectional three-dimensional diagram showing the first centering cap;
Figure 6 is an exploded three-dimensional diagram showing the second centering cap;
7 is a plan view showing the second centering cap;
Figure 8 is a cross-sectional three-dimensional configuration diagram showing the second centering cap;
9 to 12 are cross-sectional diagrams showing the operating state of the second centering cap;
Figure 13 is a plan view showing water supply and relay lines.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

Prior to this, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor should appropriately define the concept of terms in order to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so various equivalents that can replace them at the time of filing the present application It should be understood that variations and variations may exist.

Based on Figure 4, the bottom member side is specified as lower or downward, and the top member side is specified as upper or upward.

As shown in Figures 1 to 13, the cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure according to the present invention,

It largely consists of a pad body (10), a centering hole (20), a recess (30), a water supply hole (40), a hook-type Velcro (50A), and a loop-type Velcro (50B).

Looking at each configuration,

The main body 10 is

As shown in Figures 1 to 5,

It consists of a disk-shaped structure.

At this time, the main body 10 is made of synthetic resin material.

For example, it has a cushioning feel and is made of one material selected from EVA (Ethylene vinyl acetate), EPDM (ethylene propylene diene monomer), TPE (Thermo Plastic Elastomer), TPU (Thermoplastic Polyurethane), and EPP (Expanded Polypropylene). Although it is manufactured from the same rubber series, Thermo Plastic series such as TPE and TPU, and high-density foamed plastic such as EPP, this is an example and the main body 10 is compressed by external pressure and then pressurized. It can be changed to various materials within the range that satisfies the condition of having appropriate elasticity so that it can be restored to its original form when released.

The centering hole 20 is

As shown in Figures 1 to 5,

It has a circular hole structure formed to penetrate upward and downward in the central area of the upper surface of the main body 10 and is coupled to the rotation axis 1 of the wet mop robot vacuum cleaner.

The recess (30) is

As shown in Figures 1 to 5,

It consists of an annular spatial structure that is formed to be recessed downward along the surrounding area adjacent to the centering hole 20 on the upper surface of the main body 10.

Ultimately, the recess 30 serves as a guide to prevent the water supplied from the front end of the water supply hole 40 from scattering and to ensure that it is more evenly supplied to the water supply hole 40. In this way, the water that has passed through the water supply hole 40 is supplied to the wet mop and wets the mop.

As an important feature at this time, the recess 30 is formed in a circular orbit along the point that bisects the radius line to the center of the main body 10, so that the supplied water flows from the recess 30 to the angle. When wetting a wet mop through the water supply hole 40, it spreads to the center of the mop and at the same time spreads to the edges of the mop, allowing the entire wet mop to be evenly wetted in a short period of time.

The water supply hole (40) is

As shown in Figures 1 to 5,

It consists of a long hole structure arranged radially along the bottom surface of the recess 30 and penetrating upward and downward, and is provided in plural numbers.

At this time, the quantity of the water supply hole 40 can be varied in consideration of the size of the water supply hole 40, the diameter of the main body 10, the material or thickness of the wet mop, etc.

And as shown in FIG. 2, each water supply hole 40 is disposed biased toward the outer wall of the recess 30, which prevents the water supplied to the recess 30 from scattering within the recess 30 as much as possible. This is to ensure that the water is supplied more evenly to each water supply hole (40) without causing water damage.

The hook-type Velcro (50A) is

As shown in Figure 3,

It is provided on the lower surface of the main body 10 to attach a wet mop,

It consists of a male Velcro structure so that it can be attached and detached from the female Velcro.

At this time, the female Velcro may be separately constructed on the upper surface of the wet mop, but since the wet mop itself has a fiber layer (e.g. non-woven fabric, etc.) that acts as female Velcro, there is no need to provide a separate female Velcro.

Therefore, when the wet mop on the surface to be cleaned is finished, the wet mop can be separated from the hook-type Velcro (50A), washed and dried, and the wet mop can be reattached and used during cleaning.

The loop-type Velcro (50B) is

As shown in Figure 3,

It is provided on the upper surface of the main body 10 and consists of a female Velcro structure for attachment to the rotating plate 2 equipped with the rotating shaft 1 of the wet mop robot vacuum cleaner.

At this time, the loop-type Velcro 50B may be separately formed on the upper surface of the main body 10, but may be formed by forming a fiber layer (eg, non-woven fabric, etc.) that functions as loop-type Velcro.

In addition, as shown in FIG. 9, a hook-type Velcro 3 is formed on the lower surface of the rotating plate 2 of the robot cleaner, so that the main body 10 can be attached and detached from the rotating plate 2.

The cushion pad according to the present invention further includes a centering cap, and can be divided into a centering cap of the first embodiment and a centering cap of the second embodiment, with the centering cap of the first embodiment being referred to as a 'first centering cap' and the centering cap of the second embodiment being referred to as a 'first centering cap'. The centering cap in the example is designated as 'second centering cap', and the reference numerals for each are designated as '60' and '70'.

First, the first centering cap 60 is

As shown in Figures 4 and 5,

It largely consists of a bottom member 61 and a top member 62 that can be coupled and separated from each other.

The bottom member 61 is

A circular bottom post 611 inserted into the lower side of the centering hole 20,

A shaft coupling portion 612 formed in the bottom post 611 and coupled to the rotation shaft 1,

A plurality of pressing protrusions 613 protruding and disposed at equal intervals along the lower outer peripheral surface of the bottom post 611,

a bottom flange 614 that extends horizontally along the lower periphery of the bottom post 611 and supports a lower peripheral area of the centering hole 20;

A locking protrusion 615 protrudes along the upper outer peripheral surface of the bottom post 611.

It consists of

And the top member 62 is

A top post 621 inserted into the lower side of the centering hole 20 and coupled to the upper end of the upwardly exposed bottom post 611,

A locking space portion 622 that is recessed along the inner peripheral surface of the top post 621 and is fixed to the locking protrusion 615,

A top flange 623 that extends horizontally along the lower circumference of the top post 621 and supports the upper peripheral area of the centering hole 20.

It consists of

As each pressing protrusion 613 presses into the inner peripheral surface of the centering hole 20, it is possible to prevent the first centering cap 60 from spinning around the centering hole 20.

In addition, the locking protrusion 615 has a cross-sectional structure inclined in the direction of entry so that the locking protrusion 615 can easily enter the locking space 622. This inclined cross-sectional structure makes it easy to enter. Conversely, since it is difficult to move, the coupling force between the bottom member 61 and the top member 62 can be increased.

In addition, since the top post 621 and the bottom post 611 of the top member 62 are disposed on the upper side of the main body 10, that is, above the loop-type Velcro 50B provided on the upper surface, the robot vacuum cleaner When combined with the rotation axis (1), the bottom post (611) located within the rotation axis (1) and the top post (621) before mutual attachment due to the male and female Velcro structure between the rotation plate (2) of the robot cleaner and the cushion pad body (10). The shaft coupling portion 612 is first coupled to each other, and the hook-type Velcro 3 of the rotating plate 2 and the loop-type Velcro 50B of the main body 10 are attached to each other, thereby attaching the main body 10 to the rotating plate 2. The main body 10 can be attached at the exact center position. After attaching the pad body (10) to the correct position, when the body (10) rotates together with the rotating plate (2), it becomes eccentric and does not rotate, thus reducing fatigue on the driving device that provides rotational power, especially in robots. It contributes to ensuring that the vacuum cleaner operates accurately and in a stable state.

The second centering cap 70 is

As shown in Figures 6 to 9,

A circular cap body 71 inserted into the centering hole 20,

A circular internal space 72 formed to penetrate upward and downward within the cap body 71,

A circular ring 73 disposed in the central area of the internal space 72, spaced apart from the inner peripheral surface of the internal space 72, and coupled to the rotation axis 1,

Two or more elastic rods (74) interconnecting the inner peripheral surface of the inner space portion (72) and the outer peripheral surface of the circular ring (73),

A top plate (75) extending horizontally along the upper circumference of the cap body (71) to support the upper peripheral area of the centering hole (20),

A bottom plate 76 that extends horizontally along the lower circumference of the cap body 71 and supports the lower peripheral area of the centering hole 20.

It is made including.

At this time, as shown in FIG. 7, in the second centering cap 70, each elastic rod 74 has one end connected to the inner peripheral surface of the internal space 72 and the other end connected to the outer peripheral surface of the circular ring 73. However, when viewed from the top, one end and the other end are arranged so as to be offset from each other on the virtual line (L) passing through the center of the circular ring (73), which means that each elastic rod (74) is more This is to enable elastic up and down bending motion.

As shown in Figure 9, with the main body 10 positioned on the lower side of the rotating plate 2 of the robot vacuum cleaner,

As shown in FIG. 10, when the circular ring 73 of the second centering cap 70 is pushed upward, each elastic rod 74 is elastically deformed and a portion of the circular ring 73 is moved to the cap body. It is exposed to the upper side of (71).

As shown in FIG. 11, the circular ring 73 exposed in this way is coupled to the rotation axis 1 of the robot vacuum cleaner, and at this time, the male and female Velcro structure between the rotating plate 2 of the robot vacuum cleaner and the cushion pad body 10 causes mutual friction between them. Before attachment, the rotating shaft (1) and the circular ring (73) are coupled to each other. In other words, before the hook-type Velcro (3) on the lower surface of the rotating plate (2) of the robot cleaner and the loop-type Velcro (50B) on the upper surface of the main body (10) are attached to each other, the rotating shaft (1) and the circular ring (73) are connected to each other. It is combined. The rotation shaft (1) and the circular ring (73) are not first coupled, but the hook-type Velcro (3) on the lower surface of the rotating plate (2) of the robot cleaner and the loop-type Velcro (50B) on the upper surface of the main body (10) are first partially connected to each other. When attached, the centering between the rotating shaft 1 and the circular ring 73, which are later coupled to each other, may not match, which may cause the main body 10 to be deformed or have an eccentric motion when rotating.

As shown in FIG. 12, by releasing the pushing action on the circular ring 73 while the main body 10 is properly centered and attached to the rotating plate 2, the circular ring 73 returns to its original position. As a result, the hook-type Velcro (3) on the lower surface of the rotating plate (2) of the robot cleaner and the loop-type Velcro (50B) on the upper surface of the main body (10) are attached to each other.

Meanwhile, the cushion pad according to the present invention further includes a water supply line 80 and a relay line 90.

As shown in Figure 10, the water supply line 80 is disposed biased toward the inner wall of the recess 30 and has a circular groove structure formed to be recessed downward.

As shown in Figure 10, the relay line 90 is composed of a straight groove structure that interconnects the water supply line 80 and each water supply hole 40, and is provided to match the water quantity of each water supply hole 40. .

The fact that the recess 30 is skewed toward the inner wall allows the supplied water to be guided by the water supply line 80 and begin to be supplied more evenly to the water supply hole 40 through each relay line 90. This is to ensure that

In the above description of the present invention, the "cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure" having a specific shape and structure is described with reference to the accompanying drawings. However, the present invention can be modified and modified in various ways by those skilled in the art. , such modifications and changes should be construed as falling within the scope of protection of the present invention.

1: rotation axis
2: Rotating plate
3: Hook type Velcro
10: main body
20: Centering hole
30: recess
40: water supply hole
50A: Hook type Velcro
50B: Loop type Velcro
60: first centering cap
61: Bottom member
611: Bottom post
612: Shaft coupling part
613: Pressure protrusion
614: Bottom flange
615: Obstacle
62: Top member
621: Top post
622: Hanging space part
623: Top flange
70: Second centering cap
71: cap body
72: Internal space part
73: circular ring
74: elastic rod
75: Top plate
76: Bottom plate
80: Water supply line
90: relay line
L: virtual line

Claims (7)

Disk-shaped pad body (10);
A centering hole (20) formed to penetrate upward and downward in the central area of the upper surface of the main body (10) and coupled to the rotation axis (1) of the wet mop robot vacuum cleaner;
an annular recess 30 formed to be recessed downward along a peripheral area adjacent to the centering hole 20 on the upper surface of the main body 10;
A plurality of water supply holes (40) arranged radially along the bottom surface of the recess (30) and penetrating upward and downward;
Hook-type Velcro (50A) provided on the lower surface of the main body (10) to attach the wet mop (2); and
Loop-type Velcro (50B) provided on the upper surface of the main body (10) to be attached to the rotating plate (2) equipped with the rotating shaft (1) of the wet mop robot vacuum cleaner;
Including,
A circular bottom post 611 inserted into the lower side of the centering hole 20, a shaft coupling portion 612 formed in the bottom post 611 and coupled to the rotation shaft 1, and the bottom post 611 ) and a plurality of pressure protrusions 613 protruding and arranged at equal intervals along the lower outer peripheral surface of the bottom post 611, and extending horizontally along the lower circumference of the bottom post 611 to support the lower peripheral area of the centering hole 20. A bottom member 61 having a bottom flange 614 and a locking protrusion 615 protruding along the upper outer peripheral surface of the bottom post 611,
A top post 621 that is inserted into the lower side of the centering hole 20 and is coupled to the upper end of the upwardly exposed bottom post 611, and is formed to be recessed along the inner peripheral surface of the top post 621 to form the locking protrusion. It has a hanging space portion 622 in which (615) is hung and fixed, and a top flange 623 that extends horizontally along the lower circumference of the top post 621 and supports the upper peripheral area of the centering hole 20. Top member (62)
A cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure, further comprising a first centering cap (60) consisting of.
Disk-shaped pad body (10);
A centering hole (20) formed to penetrate upward and downward in the central area of the upper surface of the main body (10) and coupled to the rotation axis (1) of the wet mop robot vacuum cleaner;
an annular recess 30 formed to be recessed downward along a peripheral area adjacent to the centering hole 20 on the upper surface of the main body 10;
A plurality of water supply holes (40) arranged radially along the bottom surface of the recess (30) and penetrating upward and downward;
Hook-type Velcro (50A) provided on the lower surface of the main body (10) to attach the wet mop (2); and
Loop-type Velcro (50B) provided on the upper surface of the main body (10) to be attached to the rotating plate (2) equipped with the rotating shaft (1) of the wet mop robot vacuum cleaner;
Including,
A circular cap body 71 inserted into the centering hole 20, a circular internal space 72 formed to penetrate upward and downward within the cap body 71, and a central area of the internal space 72. A circular ring 73 is disposed at a distance from the inner peripheral surface of the internal space 72 and coupled to the rotation axis 1, and the inner peripheral surface of the internal space 72 and the outer peripheral surface of the circular ring 73. Two or more elastic rods 74 interconnecting each other, a top plate 75 extending horizontally along the upper circumference of the cap body 71 to support the upper peripheral area of the centering hole 20, and the cap A water supply structure further comprising a second centering cap 70 consisting of a bottom plate 76 that extends horizontally along the lower circumference of the body 71 and supports the lower peripheral area of the centering hole 20. Cushion pad for improved wet mop robot vacuum cleaner.
The method of claim 1 or 2,
A cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure, wherein each water supply hole (40) is disposed skewed toward the outer wall of the recess (30).
The method of claim 1 or 2,
A cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure, wherein the main body (10) is made of a synthetic resin material.
delete According to claim 2,
In the second centering cap 70, each elastic rod 74 has one end connected to the inner peripheral surface of the inner space 72 and the other end connected to the outer peripheral surface of the circular ring 73, when viewed from the top. A cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure, characterized in that one end and the other end are arranged misaligned with each other so as to be non-disposed on an imaginary line (L) passing through the center of the circular ring (73).
The method of claim 1 or 2,
A circular water supply line 80 disposed biased toward the inner wall of the recess 30 and formed to be recessed downward, and a plurality of relay lines interconnecting the water supply line 80 and each water supply hole 40 ( 90) A cushion pad for a wet mop robot vacuum cleaner with an improved water supply structure, further comprising:

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