Patent Description:
Emergence of cleaning machines brings great convenience to people's life. The cleaning machines may be used to clean cars, doors and windows, roads in courtyards, and the like, and are efficient, safe, and convenient. The cleaning machine mainly includes a principal machine, a spray gun, and a connection tube. The principal machine includes a battery or a power cable, a pump, a motor, and the like. The connection tube connects the principal machine and the spray gun.

A large-scale cleaning machine currently applied in the industry cannot be flexibly moved due to a large volume and a heavy weight. A hand-held cleaning machine needs to be connected to an external water tank by using a connection tube so that it can be used only by moving the cleaning machine, and a moving distance of the cleaning machine is limited by the length of the connection tube between the cleaning machine and the water tank, which brings inconvenience to users.

<CIT> discloses a hand-held cleaning machine mainly including: motor, speed reducer, pump body, nozzle, and a handle suitable to be connected to an external water source by using a water pipe.

There is a main transmission shaft and at least a driven shaft installed in the pump body. The main transmission shaft connects with the speed reducer in transmission, and a driving hydraulic gear is fixed on the main transmission shaft. The driving hydraulic gear engages with a driven hydraulic gear fixed on the driven shaft relative to transmission. Water inlet and outlet cavities constituting water flow channels are formed in the pump body. The water inlet and outlet cavities communicate with a cavity in which the driving hydraulic gear fixed on the main transmission shaft and the driven hydraulic gear fixed on the driven shaft exist. Therefore, high pressure is generated by the engagement of the driving hydraulic gear and the driven hydraulic gear rotating in high speed.

<CIT> discloses a pressurized-water cleaning device which has a pump with suction- and pressure-connection and an electric drive, and uses a slip-ring free electrical machine as drive with at least one fixed power winding (stator) and an external rotor with an active face facing the interior side of the external rotor. At least two permanent magnets are arranged on the inner side of the external rotor and have a line of action alternating in the peripheral direction and facing inwards.

<CIT> discloses a hand-held washer, which includes: a housing. The motor sets up in the casing, the pump sets up in the casing, by motor drive work is including inlet and liquid outlet, the feed liquor pipe, with the inlet of pump is connected, the drain pipe, with the liquid outlet of pump is connected, the control unit sets up in the casing, with the motor is connected, control the motor, control switch sets up on the casing, with the control unit connects, the battery, with the control unit connects, and gives the motor provides the energy. Above-mentioned hand-held washer sets up motor, pump etc. In the casing to provide the energy for the motor by the battery, in the cleaning process, the operator can remove whole cleaning machine.

Based on this, it is necessary to provide a hand-held high-pressure cleaning machine that can not only use an external water source, but also be connected to a portable container.

A hand-held pressure cleaning machine is disclosed here, comprising: a housing, having a handle for grasping; functional components, comprising a motor and a pump driven by the motor which are disposed in the housing; and a liquid inlet, disposed on the housing and capable of being connected to an external water source by using a water pipe; wherein the hand-held -pressure cleaning machine further comprises an adapter suitable to be connected between the liquid inlet and a portable container, and the hand-held pressure cleaning machine is connectable to the external water source by using the water pipe and connectable to the portable container by using the adapter.

The adapter comprises an adapter body and a liquid conveying tube, the adapter body comprises a first connection portion, the first connection portion comprises a first connection end and a second connection end in communication with each other, the first connection end is connected to the liquid inlet, the second connection end is connected to an opening of the portable container, one end of the liquid conveying tube is connected to or integrally molded on the adapter body, and the other end of the liquid conveying tube is suitable to extend into the portable container.

In one of the embodiments, an internal thread thread-connected to the portable container is formed in the second connection end.

In one of the embodiments, the inner diameter of the second connection end is <NUM>.

In one of the embodiments, multiple protrusions are disposed on an outer wall of the second connection end, and the multiple protrusions are configured to provide a contact surface abutting against a hand of an operator to reduce torque of screwing the adapter.

In one of the embodiments, the liquid inlet is optionally connected to a connection head of the water pipe or the first connection end.

In one of the embodiments, a breather hole in communication with the portable container is formed on the adapter body.

In one of the embodiments, the hand-held high-pressure cleaning machine further comprises a filter washer disposed at the liquid inlet, the housing is provided with a mounting portion fitted to the adapter, and the filter washer is sealed and mounted in the mounting portion.

In one of the embodiments, the portable container is a common beverage bottle.

In one of the embodiments, the portable container is fitted to one end of the adapter, the hand-held high-pressure cleaning machine is fitted to the other end of the adapter, the portable container comprises a bottom surface supporting the portable container, and when the portable container is connected to the hand-held high-pressure cleaning machine by using the adapter, the center of gravity of the hand-held high-pressure cleaning machine falls within a range of the bottom surface of the portable container, and the hand-held high-pressure cleaning machine can be supported above the portable container.

Beneficial effects of the present invention are: The hand-held high-pressure cleaning machine is connected to a portable container by using an adapter, indicating that the high-pressure cleaning machine can not only be connected to an external water source by using a water pipe, but also be connected to the portable container by using the adapter, thereby increasing use scenario and scope of the hand-held high-pressure cleaning machine, and improving portability.

Also disclosed herein is an adapter connected between a hand-held spraying device and a portable container to improve convenience of moving the hand-held spraying device.

The adapter is suitable to be connected between a hand-held spraying device and a portable container, the adapter comprises an adapter body and a liquid conveying tube, the adapter body comprises a first connection portion, the first connection portion comprises a first connection end and a second connection end in communication with each other, the first connection end is configured to be connected to a liquid inlet of the hand-held spraying device, the second connection end is configured to be connected to an opening of the portable container, one end of the liquid conveying tube is connected to or integrally molded on the adapter body, and the other end of the liquid conveying tube is suitable to extend into the portable container.

In this adapter, an internal thread thread-connected to the portable container is formed in the second connection end.

The adapter body further comprises a second connection portion, the second connection portion is disposed in the first connection portion, and is in communication between the first connection end and the second connection end, and the liquid conveying tube is fixedly or detachably connected to or integrally molded on the second connection portion, and is suitable to extend into the portable container.

A cavity is present between the second connection end and the second connection portion, the cavity being configured to receive the opening of the portable container.

In the present disclosure, the portable container configured to hold liquid is mounted to the hand-held spraying device by using the adapter, so that the portable container can be flexibly moved together with the hand-held spraying device, which is highly flexible and brings great convenience to a user to perform a short-time operation.

For ease of understanding the present invention, the following is to describe the present invention more comprehensively with reference to the related accompanying drawings. The accompanying drawings show preferred embodiments of the present invention. However, the present invention may be implemented in many different forms, and is not limited to the embodiments described herein. Oppositely, an objective of providing these embodiments is to make the disclosed content of the present invention clearer and more comprehensive.

It should be noted that when an element is referred to as being "fixed on" another element, it can be directly on another element or there may be an intervening element. When an element is regarded as being "connected to" another element, the element can be directly connected to another element or there may be an intervening element.

Unless otherwise defined, all the technologies and scientific terms used herein are the same as meanings generally understood by a person skilled in the art of the present invention. The terms used in the specification of the present invention are merely for describing the specific embodiments, and are not intended to limit the present invention. The term "and/or" used herein includes any and all combinations of one or more of related listed items.

Referring to <FIG>, in a preferred embodiment of the present invention, an adapter <NUM> is connected between a hand-held spraying device and a portable container <NUM>, and is configured to mount the portable container <NUM> to the hand-held spraying device, so that the hand-held spraying device can pump out liquid held in the portable container <NUM>. In this way, the portable container <NUM> configured to hold the liquid can be mounted to the hand-held spraying device by using the adapter <NUM>, and the portable container <NUM> can be flexibly moved together with the hand-held spraying device, which is highly flexible and brings great convenience to a user to perform a short-time operation. In this specific embodiment, the portable container <NUM> is a bottle, for example, a soda bottle, a beverage bottle, or another household bottle, or may be a special bottle certainly. The liquid held in the portable container <NUM> is water, the hand-held spraying device is a hand-held high-pressure cleaning machine <NUM>, and the adapter <NUM> is mounted between a bottle mouth and the hand-held spraying device, and is configured to pump out the water in the portable container <NUM> by using the hand-held spraying device, to clean objects.

It can be understood that in some other embodiments, the portable container <NUM> may be other utensils, for example, a case with one side open. The liquid held in the portable container <NUM> may be detergent, lube oil, or the like, and the adapter <NUM> is mounted between the open side of the case and the hand-held spraying device, and is configured to pump out the detergent or the lube oil in the portable container <NUM> by using the hand-held spraying device, to clean or lubricate objects. All of these are not limited herein.

Referring to <FIG>, specifically, the adapter <NUM> includes an adapter body <NUM> and a liquid conveying tube <NUM>. The adapter body <NUM> is connected between the hand-held spraying device and the portable container <NUM>, so as to mount the portable container <NUM> to the hand-held spraying device. The liquid conveying tube <NUM> is connected to or integrally molded on the adapter body <NUM>, and another end of the liquid conveying tube <NUM> extends into the portable container <NUM> to enable the portable container <NUM> to be in communication with the hand-held spraying device, facilitating output of the liquid.

Referring to <FIG>, more specifically, the adapter body <NUM> includes a first connection portion <NUM>, the first connection portion <NUM> includes a first connection end <NUM> and a second connection end <NUM> in communication with each other, the first connection end <NUM> is connected to the hand-held spraying device, and the second connection end <NUM> is connected to the portable container <NUM>. In this embodiment, the first connection end <NUM> and the second connection end <NUM> are in communication with each other. In other embodiments, a barrier is disposed between the first connection end <NUM> and the second connection end <NUM>, and piercing the barrier may enable the first connection end <NUM> and the second connection end <NUM> to be in communication with each other. In this specific embodiment, the first connection portion <NUM> is roughly in a shape of a hollow tube with two open ends, and the first connection end <NUM> and the second connection end <NUM> are two ends of the first connection portion <NUM> which are opposite to and in communication with each other. It can be understood that, in some other embodiments, the shape of the first connection portion <NUM> may be determined according to needs. Correspondingly, a position relationship between the first connection end <NUM> and the second connection end <NUM> may be determined according to needs. For example, the first connection end <NUM> and the second connection end <NUM> may be staggered but disposed in communication with each other, which is not limited herein.

Preferably, for ease of detaching and mounting of the adapter <NUM>, the first connection portion <NUM> is detachably connected between the hand-held spraying device and the portable container <NUM>. The detachable connection of the first connection portion <NUM> may be that the first connection end <NUM> is fixedly connected to the hand-held spraying device, and the second connection end <NUM> is detachably connected to the portable container <NUM>; or that the first connection end <NUM> is detachably connected to the hand-held spraying device, and the second connection end <NUM> is fixedly connected to the portable container <NUM>; or that the first connection end <NUM> and the second connection end <NUM> are detachably connected to the hand-held spraying device and the portable container <NUM> respectively.

In an embodiment, the first connection end <NUM> is connected to the hand-held spraying device by means of insertion, sleeving, or snap-on, and/or the second connection end <NUM> is connected to the portable container <NUM> by means of insertion, sleeving, or snap-on. When the second connection end <NUM> is mounted to the portable container <NUM> in an interference fit manner such as insertion or sleeving, and extends into the portable container <NUM>, the liquid conveying tube <NUM> may be disposed on the second connection end <NUM>, and extends into the portable container <NUM> together with the second connection end <NUM>.

In an embodiment, the first connection end <NUM> is thread-connected to the hand-held spraying device, and/or the second connection end <NUM> is thread-connected to the portable container <NUM>. When the second connection end <NUM> is mounted to the portable container <NUM> by threaded connection, and extends into the portable container <NUM>, the liquid conveying tube <NUM> may be disposed on the second connection end <NUM>, and extends into the portable container <NUM> together with the second connection end <NUM>. In other embodiments, the liquid conveying tube <NUM> may be integrally molded on the second connection end <NUM>, and one end of the liquid conveying tube <NUM> extends into the portable container. Specifically, an internal thread is disposed on an inner wall of the second connection end <NUM>, the inner diameter of the second connection end is roughly <NUM>, the size of the inner diameter of the second connection end allows an error range of plus or minus <NUM>, and the thread depth of the internal thread is <NUM>, so as to match a cola bottle commonly seen on the market.

Preferably, multiple protrusions are disposed on an outer wall of the second connection end <NUM>, and the multiple protrusions are configured to provide a contact surface abutting against fingers of an operator, so as to reduce torque of screwing the adapter. By means of the foregoing disposing, the operator can screw the adapter <NUM> and a liquid inlet with minimal force, and can detach the adapter <NUM> conveniently.

In this specific embodiment, the first connection portion <NUM> is roughly in a shape of a tube with two open ends, the first connection end <NUM> is roughly in a shape of a cylinder, and an external thread thread-connected to the hand-held spraying device is formed outside the first connection end <NUM>; the second connection end <NUM> is in a shape of an inverted bowl matching the bottle mouth, and an internal thread thread-connected to an external thread of the bottle mouth is formed inside the second connection end <NUM>. Therefore, the adapter <NUM> is in a shape of a bottle cap matching a bottle mouth of a common bottle. In this way, the user can clean a commonly used empty beverage bottle or the like to hold the required liquid, and connect the bottle to the hand-held spraying device by using the adapter <NUM>, so as to spray out the liquid in the bottle by using the hand-held spraying device. The common beverage bottle can be flexibly moved due to a small volume, thereby bringing great convenience to the user to perform tasks such as short-time cleaning.

Further, the adapter body <NUM> further includes a second connection portion <NUM>, the second connection portion <NUM> is disposed in the first connection portion <NUM> and is in communication between the first connection end <NUM> and the second connection end <NUM>, and the liquid conveying tube <NUM> is fixedly or detachably connected to or is integrally molded on the second connection portion <NUM> and extends into the portable container <NUM>, so as to be in communication between the hand-held spraying device and the portable container <NUM>.

In this specific embodiment, the second connection portion <NUM> is in a shape of a hollow cylinder tube disposed in the first connection portion <NUM> and extending toward the second connection end <NUM> along an axial direction, and the liquid conveying tube <NUM> is fixedly or detachably sleeved on the tube-shaped second connection portion <NUM> and extends into the portable container <NUM>, so as to be in communication between the hand-held spraying device and the portable container <NUM>.

It can be understood that in some other embodiments, the second connection portion <NUM> may be a spacer plate formed in the first connection portion <NUM>, a connection hole in communication with the first connection end <NUM> and the second connection end <NUM> is formed on the second connection portion <NUM>, and one end of the liquid conveying tube <NUM> is fixedly or detachably inserted into the connection hole and is in communication between the hand-held spraying device and the portable container <NUM>.

Preferably, a breather hole <NUM> in communication with the portable container <NUM> is formed on the adapter body <NUM> and is used to balance pressure inside and outside the portable container <NUM>, to prevent the portable container <NUM> from being crushed due to extremely low air pressure inside the portable container <NUM>.

The present invention further relates to a hand-held high-pressure cleaning machine <NUM> using the foregoing adapter <NUM>. In this specific embodiment, the hand-held high-pressure cleaning machine <NUM> has a housing roughly in a shape of a pistol. The housing includes a handle <NUM> for grasping and a principal body <NUM> configured to store functional components. The principal body <NUM> includes a motor and a pump driven by the motor. In this embodiment, the handle <NUM> and the principal body <NUM> are disposed at an angle, and the hand-held high-pressure cleaning machine further includes a liquid inlet <NUM> disposed on the housing.

In this embodiment, the hand-held high-pressure cleaning machine <NUM> does not include a water tank, but is connected to a water pipe by using the liquid inlet <NUM>, and then is connected to an external water source by using the water pipe. In this way, after the liquid inlet <NUM> is connected to the water pipe, during household activities, only a tail end of the water pipe needs to be connected to a tap, or put into a swimming pool, a pond, a bucket, or another external water source, so that the user can hold the high-pressure cleaning machine by hand and freely move within the length range of the water pipe to carry out spraying and cleaning work. During outdoor activities, the user only needs to stop at a place with water and put the tail end of the water pipe into an external water source to carry out spraying and cleaning work. The water in the external water source can be pumped into the high-pressure cleaning machine by the pump and then is directly sprayed out from a spray head. To improve portability, in this embodiment, the hand-held high-pressure cleaning machine <NUM> may also be connected to a portable container by using the adapter <NUM>.

During mounting, the portable container <NUM> is fitted to one end of the adapter <NUM>, the hand-held high-pressure cleaning machine <NUM> is fitted to the other end of the adapter <NUM> and is supported above the portable container <NUM>. Therefore, no matter whether the portable container <NUM> holds liquid or not, the center of gravity of the hand-held high-pressure cleaning machine <NUM> is located within a supporting bottom surface of the portable container. In this way, the center of gravity of the hand-held high-pressure cleaning machine <NUM> is located on the portable container <NUM> when the hand-held high-pressure cleaning machine <NUM> is supported above the portable container <NUM>, to balance the hand-held high-pressure cleaning machine <NUM>. In addition, the adapter <NUM> is in communication with the liquid inlet, a nozzle is disposed on one end of a principal body <NUM> and is in communication with a liquid outlet, so as to spray out the liquid pumped in through the liquid inlet <NUM>. Referring to <FIG>, in an embodiment, the hand-held high-pressure cleaning machine <NUM> further includes a filter washer <NUM>, a mounting portion fitted to the adapter <NUM> is disposed on the principal body <NUM>, and the filter washer <NUM> is sealed and mounted in the mounting portion, and is located above the adapter <NUM>. The filter washer <NUM> is made of an elastic material to ensure a sealed connection between the adapter <NUM> and the liquid inlet <NUM>, so as to ensure that the hand-held high-pressure cleaning machine <NUM> successfully pumps out the liquid in the portable container <NUM>. On the other hand, the filter washer <NUM> made of the elastic material converts a connection between the adapter <NUM> and the mounting portion to an elastic connection, to facilitate the detaching between the adapter <NUM> and the mounting portion.

In this specific embodiment, the water pipe includes a water pipe joint, the water pipe joint includes a connection head suitable to be connected to the liquid inlet <NUM>, the connection head has a same connection structure as the first connection end <NUM>, and the liquid inlet <NUM> is optionally connected to the connection head or the first connection end <NUM> of the adapter.

In this specific embodiment, bumps <NUM> are formed on a peripheral surface of the filter washer <NUM>, recesses (not shown) are formed at positions that are on the mounting portion <NUM> and that are corresponding to the bumps <NUM>, thereby detachably mounting the filter washer <NUM> in the mounting portion <NUM> by means of snap-fit between the bumps <NUM> and the recesses. It can be understood that in some other embodiments, the fitting between the filter washer <NUM> and the mounting portion <NUM> may be determined according to needs, which is not limited herein.

The following uses that the portable container <NUM> is a common beverage bottle (for example, a soda bottle or a cola bottle) as an example to describe in detail fitting between the adapter <NUM> and the hand-held high-pressure cleaning machine <NUM> and fitting between the adapter <NUM> and the common beverage bottle in the present invention.

During use, the common beverage bottle is filled with liquid required to be sprayed, the liquid conveying tube <NUM> is mounted on the second connection portion <NUM>, the second connection end <NUM> of the first connection portion <NUM> of the adapter <NUM> is sleeved on and thread-connected to a bottle mouth of the common beverage bottle, the filter washer <NUM> is sealed and mounted in the mounting portion (not shown) of the hand-held high-pressure cleaning machine <NUM>, and the first connection end <NUM> of the first connection portion <NUM> of the adapter <NUM> is sleeved and thread-connected in the mounting portion of the hand-held high-pressure cleaning machine <NUM>, and is located below the filter washer <NUM>. When operating, the user may carry the hand-held high-pressure cleaning machine <NUM> mounted with the common beverage bottle and walk to a place requiring spraying, to perform corresponding operations such as cleaning, which is highly flexible and convenient to move. Preferably, the common beverage bottle is a cola bottle, a sprite bottle, or the like. The inner diameter range (not including the wall thickness) of the second connection end <NUM> of the adapter <NUM> is <NUM> to <NUM>, and preferably, is <NUM>, <NUM>, <NUM>, or <NUM>.

For the operation of filling the common beverage bottle with the liquid, the liquid may be injected from the beverage bottle mouth, or a connection between the adapter <NUM> and the bottle mouth is unscrewed and the liquid may be injected from a gap between the two; or the liquid may directly introduced into the bottle from the first connection end <NUM> of the adapter <NUM> through the liquid conveying tube <NUM>, without screwing the adapter <NUM>, which is not limited herein.

In the present invention, the portable container <NUM> configured to hold the liquid is mounted to the hand-held high-pressure cleaning machine <NUM> by using the adapter <NUM>, so that the portable container <NUM> may be flexibly moved together with the hand-held high-pressure cleaning machine <NUM>, which is highly flexible and brings great convenience to the user to perform a short-time operation.

Claim 1:
A hand-held pressure cleaning machine (<NUM>), comprising:
a housing, having a handle (<NUM>) for grasping;
functional components, comprising a motor and a pump driven by the motor which are disposed in the housing; and
a liquid inlet (<NUM>), disposed on the housing and capable of being connected to an external water source by using a water pipe, wherein
the hand-held pressure cleaning machine further comprises an adapter (<NUM>) configured to be connected between the liquid inlet (<NUM>) and a portable container (<NUM>), and the hand-held pressure cleaning machine (<NUM>) is connectable to the external water source by using the water pipe and connectable to the portable container (<NUM>) by using the adapter (<NUM>);
the adapter (<NUM>) comprises an adapter body (<NUM>) and a liquid conveying tube (<NUM>), the adapter body (<NUM>) comprises a first connection portion (<NUM>), the first connection portion comprises a first connection end (<NUM>) and a second connection end (<NUM>) in communication with each other, the first connection end (<NUM>) is connected to the liquid inlet (<NUM>), the second connection end (<NUM>) is connectable to an opening of the portable container (<NUM>), one end of the liquid conveying tube (<NUM>) is connected to or integrally molded on the adapter body (<NUM>), and the other end of the liquid conveying tube (<NUM>) is suitable to extend into the portable container (<NUM>);
the adapter body (<NUM>) further comprises a second connection portion (<NUM>), the second connection portion is disposed in the first connection portion (<NUM>), and is in communication between the first connection end (<NUM>) and the second connection end (<NUM>), and the liquid conveying tube (<NUM>) is fixedly or detachably connected to or integrally molded on the second connection portion (<NUM>), and is suitable to extend into the portable container (<NUM>).