Handheld high pressure cleaner

Abstract

The present invention relates to a handheld high-pressure cleaning machine, comprising: a main body shell, provided with a battery pack mounting portion, the battery pack mounting portion being configured to allow a battery pack to be detachably connected; a liquid outlet, arranged on the main body shell; a first handle, for an operator to hold, and arranged at an end away from the liquid outlet; a motor, arranged in the main body shell, the battery pack being able to power the motor; a pump, the motor being able to drive the pump to output cleaning liquid outward; the battery pack mounting portion comprising a first battery pack mounting portion and a second battery pack mounting portion, the battery pack comprising a first battery pack and a second battery pack connected to the first battery pack mounting portion and the second battery pack mounting portion respectively, the first battery pack mounting portion and the second battery pack mounting portion being configured in a manner that the first battery pack and the second battery pack can be separately arranged on the left and right sides of the main body shell.

Description

Technical Field

[0001] The disclosed embodiments relate to a handheld high-pressure cleaner, and more particularly to the location of a battery pack mounting portion of the handheld high-pressure cleaner. Background Art

[0002] Cleaning equipment is a kind of equipment that uses water pressure to clean dirt, oil stains, leaves, dust and other stains on the surface of objects. There are many types of cleaning equipment, and common cleaning equipment includes: sitting cleaning machines, which have poor portability and can only be used in very limited scenes and locations, and users cannot clean anytime and anywhere.

[0003] In order to meet the needs of users for convenient cleaning and portability at home and in outdoor activities, there are handheld high-pressure cleaners powered by a single DC battery pack on the market. However, due to the fact that the high-pressure cleaners with a single battery pack have insufficient battery capacity and other functional components that match the single battery pack, they cannot provide relatively high flow and water pressure, resulting in the cleaning performance of the cleaning machine failing to meet user needs.

[0004] Therefore, it is necessary to provide a new handheld high-pressure cleaning machine to solve the above problems. Summary of the invention

[0005] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0006] The technical solution adopted by the embodiments of the present disclosure to solve the problems of the prior art is: a handheld high-pressure cleaning machine, comprising: a main body housing, on which a battery pack mounting portion is mounted or integrally formed, the battery pack mounting portion being configured to allow the battery pack to be detachably connected;

[0007] A liquid outlet, arranged at a free end of the main body housing;

[0008] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0009] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0010] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0011] The battery pack installation portion includes a first battery pack installation portion and a second battery pack installation portion, and the battery pack includes a first battery pack and a second battery pack connected to the first battery pack installation portion and the second battery pack installation portion respectively;

[0012] The center of gravity G of the handheld high-pressure cleaner is located between the first handle and the liquid outlet, and the first and second battery packs are arranged between the liquid outlet and the first handle in a manner such that in the front-to-back direction, the ratio Q of the distance F between the center of the first handle and the center of gravity G of the handheld high-pressure cleaner and the distance H between the center of gravity G of the handheld high-pressure cleaner and the liquid outlet is less than 1.

[0013] In one embodiment, the ratio Q is greater than or equal to 30% and less than or equal to 80%.

[0014] In one embodiment, the host housing includes a main body, the motor and the pump are both located in the main body, the main body and the first handle cooperate to form an enclosed space, and the two battery pack mounting parts are both located in the enclosed space.

[0015] In one embodiment, the main body housing further includes a liquid outlet pipe, the liquid outlet pipe is arranged on a side of the main body away from the first handle, and the liquid outlet is arranged at a free end of the liquid outlet pipe.

[0016] In one embodiment, the handheld high-pressure cleaner includes a liquid inlet connector having a liquid inlet, the liquid inlet is connected to the pump, and the first and second battery pack mounting parts are arranged between the liquid inlet connector and the first handle and are located below the main body.

[0017] In one embodiment, the first handle is closer to the two battery pack mounting parts than the liquid outlet.

[0018] In one embodiment, the motor and the first and second battery packs form an energy component, and in the front-to-back direction, the energy component is placed at a relatively rear side of the handheld high-pressure cleaner.

[0019] In view of this, one of the objectives of the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high energy supply.

[0020] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present disclosure is: a handheld high-pressure cleaning machine, comprising:

[0021] a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow the battery pack to be detachably connected;

[0022] A liquid outlet, arranged on the main body housing;

[0023] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0024] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0025] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0026] The battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack and a second battery pack connected to the first battery pack mounting portion and the second battery pack mounting portion respectively, and the first battery pack mounting portion and the second battery pack mounting portion are configured in a manner that the first battery pack and the second battery pack can be separately arranged on the left and right sides of the main body shell.

[0027] In one embodiment, the main body housing includes a main body, the motor and the pump are both located in the main body, the main body is provided with a center plane, and the main body is substantially symmetrically arranged relative to the center plane.

[0028] In one embodiment, the first battery pack mounting portion and the second battery pack mounting portion are symmetrical to each other about the mid-plane.

[0029] In one of the embodiments, the two battery pack mounting parts are arranged side by side on the left and right sides of the median plane in such a way that the distance W2 between the leftmost edge of the first battery pack mounting part and the rightmost edge of the second battery pack mounting part in the left-right direction is not greater than the width W1 of the main body in the left-right direction.

[0030] In one of the embodiments, the first battery pack and the second battery pack are respectively slidably attached to corresponding battery pack mounting portions, and the sliding attachment directions of the first and second battery packs are the same.

[0031] In one of the embodiments, the first and second battery pack mounting portions are each provided with an opening for sliding attachment of the corresponding battery pack, and the opening is arranged downward.

[0032] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0033] The technical solution adopted by the embodiment of the present disclosure to solve the existing technical problems is: a handheld high-pressure cleaning machine, which includes:

[0034] a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow the battery pack to be detachably connected;

[0035] A liquid outlet, arranged on the main body housing;

[0036] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0037] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0038] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0039] The battery pack installation portion includes a first battery pack installation portion and a second battery pack installation portion, and the battery pack includes a first battery pack and a second battery pack connected to the first battery pack installation portion and the second battery pack installation portion respectively;

[0040] The handheld high-pressure cleaning machine further comprises a second handle, which cooperates with the first handle to realize two-handed operation of the handheld high-pressure cleaning machine;

[0041] The center of gravity G of the handheld high-pressure cleaner is located between the first handle and the second handle, and the first and second battery packs are arranged between the first handle and the second handle in a manner such that in the front-to-back direction, the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle to the straight-line distance L between the center of the first handle and the center of the second handle is greater than or equal to 35% and less than 50%.

[0042] In one embodiment, the first and second battery packs are arranged between the first handle and the second handle in such a manner that in the front-to-back direction, the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle to the straight-line distance L between the center of the first handle and the center of the second handle is greater than or equal to 35% and less than or equal to 45%.

[0043] In one embodiment, the second handle is arranged relative to the first handle and close to the liquid outlet.

[0044] In one embodiment, the first battery pack is plugged into the first battery pack mounting portion in such a way that the center of gravity G1 of the first battery pack is disposed between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle in the front-to-back direction.

[0045] In one embodiment, the second battery pack is plugged into the second battery pack mounting portion in such a way that the center of gravity G2 of the second battery pack is disposed between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle in the front-to-back direction.

[0046] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0047] The technical solution adopted by the embodiment of the present disclosure to solve the existing technical problems is: a handheld high-pressure cleaning machine, which includes:

[0048] a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow a battery pack to be detachably connected;

[0049] A liquid outlet, arranged on the main body housing;

[0050] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0051] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0052] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0053] Characterized in that the battery pack installation portion includes a first battery pack installation portion and a second battery pack installation portion, and the battery pack includes a first battery pack and a second battery pack connected to the first battery pack installation portion and the second battery pack installation portion respectively;

[0054] The positions of the first and second battery pack mounting portions are configured such that when two battery packs are mounted to the corresponding battery pack mounting portions, the lower surfaces of the two battery packs are located in the same plane.

[0055] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0056] In one embodiment, the main body housing includes a main body, the motor and the pump are both located in the main body, the main body is provided with a center dividing surface, the main body is roughly symmetrically arranged relative to the center dividing surface, and the first and second battery pack mounting parts both extend beyond the center dividing surface in the left and right directions.

[0057] In one embodiment, the first and second mounting portions are configured to be arranged side by side in the front-to-back direction, so that one of the first and second battery pack mounting portions is constructed to be closer to the liquid outlet than the other.

[0058] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0059] The technical solution adopted by the embodiments of the present disclosure to solve the problems of the prior art is: a handheld high-pressure cleaning machine, comprising: a main body housing, on which a battery pack mounting portion is mounted or integrally formed, the battery pack mounting portion being configured to allow the battery pack to be detachably connected;

[0060] A liquid outlet, arranged on the main body housing;

[0061] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0062] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0063] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0064] The battery pack installation portion includes a first battery pack installation portion and a second battery pack installation portion, and the battery pack includes a first battery pack and a second battery pack connected to the first battery pack installation portion and the second battery pack installation portion respectively;

[0065] The first battery pack mounting portion and the second battery pack mounting portion are constructed in such a way that a ratio C of a distance A between a combined center of gravity G0 of the first battery pack and the second battery pack and a center of the first handle and a distance B between the combined center of gravity G0 and the liquid outlet is less than 1.

[0066] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0067] The technical solution adopted by the embodiments of the present disclosure to solve the problems of the prior art is: a handheld high-pressure cleaning machine, comprising: a main body housing, on which a battery pack mounting portion is mounted or integrally formed, the battery pack mounting portion being configured to allow the battery pack to be detachably connected;

[0068] A liquid outlet, arranged on the main body housing;

[0069] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0070] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0071] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0072] The battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and one of the first battery pack mounting portions is configured to be closer to the liquid outlet than the second battery pack mounting portion.

[0073] In order to overcome the defects of the prior art, the problem to be solved by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine powered by large energy.

[0074] The technical solution adopted by the embodiment of the present disclosure to solve the existing technical problems is: a handheld high-pressure cleaning machine, which includes:

[0075] a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow the battery pack to be detachably connected;

[0076] A liquid outlet pipe, arranged on the main body housing;

[0077] A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet;

[0078] A motor is disposed in the main body housing, and the battery pack can supply power to the motor to provide driving force for the handheld high-pressure cleaning machine to operate;

[0079] A pump, wherein the motor can drive the pump to output cleaning liquid;

[0080] The battery pack installation portion includes a first battery pack installation portion and a second battery pack installation portion, and the battery pack includes a first battery pack and a second battery pack connected to the first battery pack installation portion and the second battery pack installation portion respectively;

[0081] The handheld high-pressure cleaner can be supported on a supporting plane by the liquid outlet pipe and the first and second battery packs, the portion of the liquid outlet pipe in contact with the supporting plane is defined as a first supporting point, the portion of the first battery pack in contact with the supporting plane is defined as a second supporting point, and the portion of the second battery pack in contact with the supporting plane is defined as a third supporting point, the first, second, and third supporting points are connected end to end to form a triangle, and in the left and right directions, the projection G' of the center of gravity G of the handheld high-pressure cleaner on the triangular plane Z is located on the vertical line of the triangle, or the projection G' is located in a range of dimensions that deviates to the left or right from the vertical line of the triangle by no more than half the size of the line segment formed by connecting the second and third supporting points, so that the two battery packs are installed to the corresponding battery pack installation parts.

[0082] In one embodiment, a projection G' of the center of gravity G of the handheld high-pressure cleaner on the triangular plane Z is located within the area formed by the triangle.

[0083] In one embodiment, the triangular plane Z includes a perpendicular line drawn from the first support point U to its opposite side, and the projection G' of the center of gravity G of the handheld high-pressure cleaner on the triangular plane Z is located on the vertical line, or the projection G' is located at a ratio of a dimension deviated to the left or right from the vertical line to the dimension of a line segment formed by connecting the second and third support points of 0.55 to 0.9, so that the first and second battery packs are installed to the corresponding battery pack mounting parts.

[0084] Compared with the prior art, the present invention has at least the following beneficial effects:

[0085] 1. The use of two battery packs can realize the function of a large-capacity battery pack without the need to redesign a large-capacity battery pack that matches the high-pressure cleaner. That is, without changing the battery pack platform used by existing tools, large-energy power supply for the handheld high-pressure cleaner can be achieved, thereby improving the cleaning ability.

[0086] 2. The battery pack can be used with other DC tools to achieve resource sharing;

[0087] 3. The double handle setting makes it easier for the operator to hold the machine and saves effort, thus effectively alleviating the arm fatigue during one-handed operation and improving the operator's working experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] Figure 1 It is a three-dimensional schematic diagram of a handheld high-pressure cleaning machine in an embodiment of the present disclosure.

[0089] Figure 2 yes Figure 1 A front view of a handheld pressure washer is shown.

[0090] Figure 3 yes Figure 1 A rear view of a handheld pressure washer is shown.

[0091] Figure 4 yes Figure 1 A bottom view of a handheld pressure washer is shown.

[0092] Figure 5 yes Figure 1 A top view of a handheld high pressure washer is shown.

[0093] Figure 6 yes Figure 1 The illustrated diagram is a three-dimensional schematic diagram of a first embodiment of a handheld high-pressure cleaner equipped with a battery pack.

[0094] Figure 7 yes Figure 6 The handheld high pressure washer is shown as a rear view with the battery pack attached.

[0095] Figure 8 yes Figure 6 The handheld high pressure washer shown is a front view with a battery pack attached.

[0096] Fig. 9 It is a three-dimensional schematic diagram of a second embodiment of a handheld high-pressure cleaning machine equipped with a battery pack.

[0097] Fig.10 yes Fig. 9 A top view of the handheld high-pressure cleaner shown is shown with a battery pack connected.

[0098] Fig.11 It is a three-dimensional schematic diagram of a third embodiment of a handheld high-pressure cleaning machine equipped with a battery pack.

[0099] Fig.12 yes Fig.11 The illustrated diagram is a three-dimensional schematic diagram of the change in the connection angle of the handheld high-pressure cleaning machine when connected to a battery pack.

[0100] Fig.13 yes Fig.12 A top view of the handheld high-pressure cleaner shown is shown with a battery pack connected.

[0101] Fig.14 It is a three-dimensional schematic diagram of a fourth embodiment of a handheld high-pressure cleaning machine equipped with a battery pack.

[0102] Fig.15 yes Fig.14 The three-dimensional schematic diagram of the handheld high-pressure cleaner shown in another angle after being equipped with a battery pack.

[0103] Fig.16 yes Figure 1 The three-dimensional schematic diagram of the handheld high-pressure cleaner after being connected to the long gun is shown.

[0104] Fig.17 yes Figure 1 The three-dimensional schematic diagram of the handheld high-pressure cleaner after being connected to the short gun is shown.

[0105] Fig.18 It is a schematic diagram of the operation after a user holds the handheld high-pressure cleaner.

[0106] Fig.19 It is a schematic diagram of one embodiment of the second handle arrangement of a handheld high-pressure cleaning machine.

[0107] Fig. 20 yes Fig.19 Schematic diagram of the specific structure of the second handle.

[0108] Fig.21 It is a three-dimensional schematic diagram of a sixth embodiment of a handheld high-pressure cleaning machine equipped with a battery pack.

[0109] Fig. 22 yes Fig.21 A top view of the handheld high-pressure cleaner shown is shown with a battery pack connected.

[0110] Fig.23 It is a three-dimensional schematic diagram of the seventh implementation mode of the handheld high-pressure cleaning machine equipped with a battery pack.

[0111] Fig.24 yes Fig.23 A top view of the handheld high-pressure cleaner shown is shown with a battery pack connected.

[0112] Fig.25 It is a three-dimensional schematic diagram of a single battery pack.

[0113] Fig.26 yes Fig.25 Exploded perspective view of the battery pack shown.

[0114] Fig. 27 yes Figure 1 A cross-sectional view of a handheld high pressure washer is shown.

[0115] Fig.28 It is a three-dimensional diagram of the handheld high-pressure cleaning machine in a standing state after being connected to a battery pack and a corresponding top view. DETAILED DESCRIPTION

[0116] The preferred embodiments of the embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the embodiments of the present disclosure can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the embodiments of the present disclosure.

[0117] like Figures 1 to 24 27 discloses a high pressure cleaning machine 100, which includes a main body housing 1, a liquid inlet connector 2, and a motor 3 (see Fig. 27 )、Pump 4 (ref. Fig. 27 ), a water inlet valve sealing system with a water channel (not shown) and a trigger mechanism 5.

[0118] The main body housing 1 adopts a left and right Haversian structure, which is connected by a first half shell 11 and a second half shell 12. The main body housing 1 includes a main body 10, a liquid outlet 13 arranged at one end of the main body 10, and a first handle 14 arranged at the other end of the main body 10. That is, the liquid outlet 13 is arranged at an end away from the first handle 14. The liquid outlet 13 includes a liquid outlet pipe 130 connected to the inner cavity fluid of the pump 4, and the liquid outlet 13 is provided with a liquid outlet 131 at its free end. In the present invention, the main body 10 and the first handle 14 are arranged at an angle to each other. Specifically, the main body 10 is roughly cylindrical and has a central axis X1. The first handle 14 also has a central axis X2. The two central axes intersect to form an angle, which is less than 180 degrees. The angle is configured so that the main body 10 and the first handle 14 can be enclosed to form an enclosed space 101.

[0119] The motor 3 and the pump 4 are both arranged in the main body housing 1. Specifically, the motor 3 and the pump 4 are both arranged in the main body 10.

[0120] One end of the liquid inlet connector 2 can be assembled to the main housing 1 or formed integrally with the main housing 1, and the other end is suspended and provided with a liquid inlet 20. The liquid inlet connector 2 is connected to an external pipe (water pipe) with liquid through the liquid inlet 20 to guide the liquid into the interior of the high-pressure cleaning machine 100. Furthermore, the high-pressure cleaning machine 100 in which the motor 3 and the pump are both arranged in the main housing 1 of the present invention is a handheld high-pressure cleaning machine. For the purpose of portability, the handheld high-pressure cleaning machine 100 itself does not have a water tank for storing water, but is connected to a water pipe (not shown) through the liquid inlet 20, and the water pipe (not shown) is then connected to an external water source, which can be a pond, tap water, or provided by a container device similar to a water tank or a cylinder. The working scenes of the handheld high-pressure cleaning machine 100 mainly include household cleaning and outdoor activities.

[0121] The trigger mechanism 5 is rotatably disposed on the first handle 14 with the connection between the trigger mechanism 5 and the first handle 14 as a fulcrum, and the trigger mechanism 5 is partially accommodated in the main body 10. The trigger mechanism 5 is specifically a trigger. The handheld high-pressure cleaner 100 also includes a control component (not shown), wherein the pump 4 and the motor 3 are both connected to the control component. When a cleaning operation is required, a cleaning signal can be input to the control component through the trigger mechanism 5, and the water path in the water inlet valve sealing system is connected. The external cleaning liquid (water) can pass through the water path in the water inlet valve sealing system under the action of the pump 4 and the motor 3, and then be sprayed out from the liquid outlet 131 to clean the surface of the object.

[0122] In the present invention, for ease of understanding, Figure 1As shown, the direction of the water jet from the liquid outlet 131 is defined as the front, the side of the first handle 14 away from the liquid outlet 131 is defined as the rear, the top of the drawing is defined as the top, and the bottom of the drawing is defined as the bottom. The outward direction of the drawing is defined as the left side, and the inward direction of the drawing is defined as the right side. Figure 3 The above definitions are for illustration only and are not to be construed as limitations of the present invention.

[0123] The handheld high-pressure cleaner 100 of the present invention is powered by a DC power supply. Specifically, the DC power supply is a rechargeable battery pack 200. The battery pack 200 is mounted on the main housing 1 in a detachable manner to supply power to the motor 3. The number of battery packs 200 may be one or two or more. In the embodiment introduced in the present invention, the battery pack 200 includes a first battery pack 201 and a second battery pack 202, wherein the center of gravity position of the first battery pack is G1, and the center of gravity position of the second battery pack is G2. The rated voltage of each battery pack 201, 202 is 18V to 56V. Preferably, each battery pack is configured with a rated voltage of 18V, and the rated capacity may be 2Ah, 2.5Ah, 3Ah, 4Ah, 6Ah or 8Ah. However, in other possible implementations, according to different requirements of the handheld high-pressure cleaner 100 for cleaning performance, the rated voltage of each battery pack may also be 36V or 42V, and the rated capacity may also be 2Ah, 2.5Ah, 3Ah, 4Ah, 6Ah or 8Ah. At this time, due to the different configurations of the battery pack, the weight of the battery pack will be slightly adjusted.

[0124] In an embodiment of the present disclosure, the battery pack 200 is a detachable rechargeable lithium battery pack, which is adapted to be connected to at least two different types of DC tools. For example, it can be commonly used in power tools such as DC hair dryers, lawn mowers, lawn mowers, chain saws, pruning shears, etc. In this embodiment, the user can even purchase only the host of the handheld high-pressure cleaner 100, and adapt the handheld high-pressure cleaner 100 by utilizing the battery packs on other existing tools (such as hair dryers, lawn mowers, etc.), so as to truly realize energy sharing, which is conducive to the universal use of the battery pack platform. It should be noted that the battery pack 200 may not be a lithium battery, but a nickel-metal hydride battery or a nickel-chromium battery, etc. In addition, the configuration of two battery packs 200 improves the energy reserve of the handheld high-pressure cleaner 100, thereby ensuring the cleaning performance of the handheld high-pressure cleaner 100 after a single charge. At the same time, since two battery packs 200 are used to realize the function of a large-capacity battery pack without the need to redesign a large-capacity battery pack to match the handheld high-pressure cleaner 100, the present invention achieves high-energy power supply for the handheld high-pressure cleaner 100 without changing the battery pack platform used by existing tools, thereby improving the cleaning ability.

[0125] The host housing 1 further includes a battery pack mounting portion 15 to which the battery pack 200 is detachably connected. The number of the battery pack mounting portions 15 is the same as the number of the battery packs 200, that is, the number of the battery pack mounting portions 15 is 2. Specifically, the two battery pack mounting portions 15 are respectively defined as a first battery pack mounting portion 151 and a second battery pack mounting portion 152. The battery pack 200 is configured to be connected to or disconnected from the battery pack mounting portion 15 by sliding. The first battery pack mounting portion has the same number in different embodiments, and the second battery pack mounting portion has the same number in different embodiments.

[0126] The following will specifically introduce the sliding connection between the battery pack 200 and the battery pack mounting portion 15. Since the two battery pack mounting portions 15 have the same structure and the two battery packs also have the same structure in the embodiment of the present disclosure, for the sake of simplicity, only the first battery pack 201 and the first battery pack mounting portion 151 are described in detail below.

[0127] Please refer to Figures 25-26 As shown, the battery pack 201 includes a battery pack housing 203 and a battery pack pole seat (not shown) disposed in the battery pack housing 203, and a battery cell unit (not shown) is disposed in the battery pack housing 203. The battery pack housing 203 includes an upper housing 205 and a lower housing 206. The upper housing 205 includes an upper surface 2032, a boss 2033 protruding upward from the upper surface 2032, and a pair of opposing mounting rails 2034. The boss 2033 includes a top surface 2035, a pair of side surfaces 2036 connecting the upper surface 2032 and the top surface 2035, and a front end surface 2037. The pair of mounting rails 2034 are parallel to each other and extend longitudinally along the outer surface of the battery pack 201, and are respectively formed on the left and right sides of the boss 2033. A locking device 207 is disposed on the battery pack housing 203. The locking device 207 can move relative to the battery pack housing 203 to achieve connection or disconnection of the battery pack with the corresponding battery pack mounting portion. Specifically, the locking device 207 includes an operating portion 2071 and a buckle portion 2072. The operating portion 2071 is specifically a button. The button can drive the buckle portion 2072 to move up and down relative to the battery pack housing 203, so that the battery pack 200 can be operably withdrawn from the battery pack mounting portion 15. The lower housing 206 includes a lower surface 2061 that is disposed opposite to the upper surface 2032 of the upper housing 205. The lower surface 2061 is disposed substantially parallel to the upper surface 2032.

[0128] For further information, see Fig.26An elastic device 2073 is provided between the bottom surface of the locking device 207 and the upper surface 2032 of the upper shell 205. Preferably, the elastic device 2073 is a spring. The upper surface 2032 of the upper shell 205 is provided with a mounting groove 2074, and the spring is at least partially limited in the mounting groove 2074. When the battery pack 201 needs to be removed from the battery pack mounting portion 15, the button is pressed, and the button drives the buckle portion 2072 to move downward and disengage from the battery pack mounting portion 15. At this time, the spring gives the button an upward restoring force due to the pressure of the button, which is used to restore the locking device 207 to its original height after being pressed.

[0129] Please refer to Figure 1 , Fig.16 and Fig.17 The battery pack mounting portion 15 includes a bottom wall 1511, a top wall 1512 opposite to the bottom wall 1511, a pair of opposing side walls 1513 protruding upward from the bottom wall 1511, and an end wall 1514. The pair of side walls 1513, the end wall 1514, and the bottom wall 1511 define a battery pack receiving chamber 1510. A tool electrode holder 1515 detachably connected to the battery pack mounting portion 15 is provided in the battery pack receiving chamber 1510. Fig.16 , Fig.17 The side wall 1513 is integrally formed with a battery rail groove 1516 extending in the length direction, and the bottom wall 1511 is formed with a clamping groove 1517. The locking device 207 provided on the battery pack 201 can be engaged with the clamping groove 1517, and at the same time ensure that the locking device 207 of the battery pack 201 can be freely disengaged from the clamping groove 1517. Two battery rail grooves 1516 are arranged in parallel on both sides of the side wall 1513. A pair of mounting rails 2034 of the battery pack 201 can slide along the corresponding battery rail grooves 1516, and be engaged in the clamping groove 1517 of the battery pack mounting portion 15 through the clamping portion 2072 of the battery pack 201, so that each battery pack 201 is electrically connected to the corresponding battery pack mounting portion 15. In the present invention, the battery pack 201 is mounted to the battery pack mounting portion 15, and the bottom wall 1511 of the battery pack mounting portion 15 is opposite to the top surface 2035 of the boss 2033 of the battery pack 201. In this embodiment, the top wall 1512 of the battery pack mounting portion 15 is defined as the battery pack mounting surface. Of course, the battery pack mounting surface should be understood as, Figure 3 and Figure 4 In the figure, when observing the handheld high pressure washer 100 from the rear side or the front side, the first battery pack mounting portion 151 is at the outermost edge on the left side, and the second battery pack mounting portion 152 is at the outermost edge on the right side.

[0130] In order to improve the cleaning performance of the handheld high pressure cleaning machine 100, in the present invention, please refer to Fig. 27As shown, the pump 4 can be a three-plunger pump, which includes a pump body 41 and three plungers 42 arranged in the pump body 41, and the three plungers 42 reciprocate with a phase difference of 120 degrees from each other. Specifically, in this embodiment, since a relatively high-power motor 3 is required to drive the three-plunger pump to continuously output the cleaning liquid, the rated power of the motor 3 is 220 watts to 1200 watts, the weight of the motor 3 is slightly increased, less than or equal to 2500 grams, and the weight of a single battery pack is less than or equal to 1500 grams. Therefore, the weight range of the handheld high-pressure cleaning machine 100 is 3 kg to 5 kg. In this embodiment, within this whole machine weight range, the working water pressure output by the handheld high-pressure cleaning machine 100 is 2Mpa to 10Mpa, and the working water flow rate output to the outside is 3L / Min to 8L / Min. Specifically, in this embodiment, the working water pressure output by the handheld high-pressure cleaning machine 100 is 3Mpa, and the working water flow rate output to the outside is 3.3L / Min. At this time, when the handheld high-pressure cleaner 100 is in the on state, the liquid outlet 131 continuously sprays water outward for 10 to 120 minutes. Preferably, the rated power of the motor 3 is 360 watts, and the weight of the functional components is 1300 grams. The rated voltage of each battery pack 201 is 18V, and the rated capacity is 2Ah. The two battery packs 201 are connected in series and discharge together to provide driving power for the motor 3. The total weight of the two battery packs 201 is less than or equal to 1000 grams, and the weight of the entire high-pressure cleaner 100 (including two battery packs 200) is 3.5 kilograms.

[0131] Further, in order to take into account the cleaning performance and the operator's demand for the portability of the handheld high-pressure cleaning machine 100. The present invention drives the three-plunger pump 4 through the motor shaft of the high-speed small motor to optimize the weight of the handheld high-pressure cleaning machine 100 and improve portability. The rotational motion of the motor 3 is converted into the reciprocating motion of the plunger 42 through the transmission mechanism 7. In the three-plunger pump 4, the efficiency of outputting the cleaning liquid is greatly improved. Of course, the three plungers 42 reciprocate, and the sliding resistance between the three plungers 42 and the pump body 41 will be large, and the energy consumption increases, requiring a relatively large rated power motor 3 to overcome the sliding resistance of the three plungers. Compared with directly using a large volume and heavy low-speed motor, the embodiment of the present disclosure significantly reduces the weight and volume of the motor 3 through the reasonable cooperation of the speed reduction mechanism and the high-speed small motor. Specifically, the transmission mechanism 43 includes a gear reduction mechanism 431 and a swash plate mechanism 432 arranged between the gear reduction mechanism 431 and the pump body 41. The no-load speed of the motor 3 is greater than or equal to 17500rpm. The swash plate mechanism 432 drives the fixed connection structure to make the plunger 42 reciprocate in the pump body 41. The present invention replaces the heavier low-speed large motor with a lighter high-speed small motor and a gear reduction mechanism to reduce the weight of the whole machine.

[0132] As described above, the handheld high-pressure cleaning machine 100 provided by the present invention is a high-speed motor driving a three-plunger pump to output cleaning liquid, and the dual battery pack is powered by the motor 3. The weight of the whole machine is roughly between 3kg and 5kg. Under this weight, the user will soon get arm fatigue when operating the machine with one hand. In order to facilitate the user to hold the machine more comfortably and improve the user's work experience. In the present invention, the handheld high-pressure cleaning machine 100 also includes a second handle 6. Specifically, the second handle 6 is at least partially arranged on the periphery of the liquid outlet pipe 130. When the operator uses the handheld high-pressure cleaning machine 100 for cleaning operations, the two handles can be held at the same time. At this time, the weight of the handheld high-pressure cleaning machine 100 is jointly borne by the two arms holding the two handles. Compared with the handheld high-pressure cleaning machine with only one handle in the prior art, this double-handle setting form is convenient for the operator to hold and is more labor-saving, thereby effectively alleviating the arm fatigue phenomenon that occurs during the operator's one-handed operation, improving the operator's work experience, and at the same time, also improving the cleaning efficiency.

[0133] The present invention mainly provides two embodiments of the second handle 6. The embodiments are described in detail below. It should be noted that the second handle 6 adopts the same reference numeral in different embodiments.

[0134] Regarding the first embodiment of the second handle 6 arrangement, Figure 1 and Fig.18 As shown, the second handle 6 is arranged at a position of the main body shell 1 near the liquid outlet 131, and the second handle 6 is provided with a hand-held portion 62 for the user to hold and lift the machine. The first handle 14 and the second handle 6 are arranged at intervals on the main body shell 1, so that the handheld high-pressure cleaning machine 100 can form a stable support structure supported by two points when performing cleaning operations, improving the instability caused by the single-point suspension support in the past, preventing the main body shell 1 from overturning at a single point of force, thereby effectively improving the working stability and reliability of the handheld cleaning machine, not only ensuring the cleaning effect, but also reducing or even avoiding the safety risks caused by the instability of the main body shell, and greatly improving the safety performance. In addition, the handheld high-pressure cleaning machine 100 has a simple structure, is easy to implement, and has a low cost.

[0135] Please continue to refer to Figure 1 , Fig. 27 In this embodiment, the liquid outlet 131 is disposed at the free end of the liquid outlet pipe 130. The second handle 6 circumferentially covers the outer side of the liquid outlet pipe 130. The second handle 6 and the liquid outlet pipe 130 are coaxially disposed. Such an arrangement reduces the space occupied by the handheld high-pressure cleaning machine 100 of this embodiment, thereby reducing its volume, and greatly improving the portability of the handheld cleaning machine 100.

[0136] It should be noted that, in this embodiment, the “free end of the liquid outlet pipe 130 ” refers to the end of the liquid outlet pipe 130 away from the first handle 14 , that is, the outermost end of the main body shell 1 of the handheld high-pressure cleaner 100 where liquid is discharged.

[0137] It should be noted that Figure 1 The middle line frame only shows the location of the second handle 6, but does not show the actual structure of the second handle 6. In actual use, the second handle 6 can be set as an annular structure wrapped around the outside of the liquid outlet tube, and a protrusion that is easy to hold can be set on the outer periphery of the annular structure to achieve the purpose of holding the second handle 6. Of course, the second handle 6 can also be set as other structures that are easy to hold, and this embodiment does not limit the structure of the second handle 6 itself.

[0138] It should also be noted that, in this embodiment, “the second handle 6 is coaxial with the liquid outlet pipe 130” means that the extension direction of the second handle 6 is coaxial with the liquid outlet pipe 130, and “the axial direction of the liquid outlet pipe 130” refers to the liquid outlet direction of the liquid outlet pipe 130. The second handle 6 is coaxial with the liquid outlet pipe 130, which can be understood as: the extension direction of the second handle 6 is parallel to the liquid outlet direction of the liquid outlet pipe 130.

[0139] Regarding the second embodiment of the second handle 6, specifically, Fig.19 As shown, the second handle 6 is a separate component. The second handle 6 is set at an angle to the liquid outlet tube 130, wherein the value range of the angle α is: 0°<α<180°. Specifically, in this embodiment, α=90°, that is, the second handle 6 and the liquid outlet tube 130 are perpendicular to each other.

[0140] It should be noted that, in the present embodiment, “the second handle 6 and the liquid outlet tube 130 are perpendicular to each other” means that the extension direction of the second handle 6 and the axial direction of the liquid outlet tube 130 are perpendicular to each other, and the definition of “the axial direction of the liquid outlet portion 13” in the present embodiment is the same as the definition of the axial direction of the liquid outlet tube 130 in the above-mentioned embodiment 1.

[0141] It should also be noted that in this embodiment, the second handle 6 and the liquid outlet pipe 130 are perpendicular to each other, which can be Fig.18 The second handle 6 is placed vertically so that its axis is perpendicular to the axis of the liquid outlet pipe 130, but it is not limited to this. Other arrangements can also be adopted, such as: when viewed along the axis of the liquid outlet pipe 130, the second handle 6 is inclined, and its axis is at an angle to the vertical direction. In this case, the first handle 14 is not in the same plane as the second handle 6. Therefore, as long as the second handle 6 is arranged in this manner and supplemented by the first handle 14, the double-arm handheld cleaning operation of the whole machine can be realized.

[0142] Furthermore, in this embodiment, the position of the second handle 6 can be adjusted forward and backward along the axial direction of the liquid outlet pipe 130. When the operator uses the handheld high-pressure cleaning machine 100 for cleaning, the operator can adaptively adjust the distance between the first handle 14 and the second handle 6 according to his own needs, so as to achieve the best hand-held distance. Such a setting enables the handheld high-pressure cleaning machine 100 of this embodiment to meet the use needs of different operators, and has a high degree of universality.

[0143] For details, please continue to refer to Fig. 20 The second handle 6 includes a mounting portion 61 which is positionally adjustable and mounted on the liquid outlet pipe 130, and a hand-held portion 62 connected to the mounting portion 61. Fig.19 As shown, the mounting portion 61 is a U-shaped connector that is snapped onto the liquid outlet pipe 130 in a direction perpendicular to the axis of the liquid outlet pipe 130. The second handle 6 is mounted on the liquid outlet pipe 130 by snapping the opening of the U-shaped connector onto the liquid outlet pipe 130. When the position of the second handle 6 needs to be adjusted, the position of the U-shaped connector on the liquid outlet pipe 130 can be adjusted. Specifically, the operator can translate the second handle 6 along the axis of the liquid outlet pipe 130 to change its position; or, remove the second handle 6 from the liquid outlet pipe 130 and then install it at the desired position.

[0144] In this embodiment, the handheld high-pressure cleaner 100 uses a U-shaped connector sleeved on the liquid outlet pipe 130 to achieve the installation of the second handle 6 on the liquid outlet pipe 130 and the adjustment of its position, which has a simple structure, convenient control, and low cost. Of course, in other embodiments, the mounting portion 61 can also be the structural form of the above-mentioned annular member sleeved on the liquid outlet pipe 130. The connection between the handheld portion 62 and the mounting portion 61 can be the above-mentioned fixed connection form, but is not limited to this, and can also be set in other forms, such as: the handheld portion and the mounting portion are hinged, so that the handheld portion can be retracted toward the mounting portion when the handheld high-pressure cleaner 100 is not in operation, so as to achieve its storage.

[0145] The handheld high-pressure cleaner 100 further includes a fixing member (not shown) for fixing the position of the second handle 6. When the position of the second handle 6 is adjusted, the fixing member can be used to fix the second handle 6 on the liquid outlet pipe 130 to reduce or even avoid the unfavorable situation that the second handle 6 is separated from the liquid outlet pipe 130 during the cleaning operation, thereby ensuring the working stability of the handheld high-pressure cleaner 100 of this embodiment.

[0146] Please refer to Figure 1 , Fig.18 and Fig.19In the two embodiments of the second handle 6, preferably, the second handle 6 is provided with anti-slip grooves at the part for the user to hold, wherein the anti-slip grooves can be Figure 1 , Fig.18 The circular raised pattern setting form can also be Fig.19 In another preferred embodiment, the gripping area of ​​the second handle 6 may also be provided with a rubber coating. The preferred rubber coating material is TPE. Such a setting not only ensures comfort during hand-held operation, but also increases the contact friction between the operator's hand and the second handle 6, thereby reducing the risk of the handheld high-pressure cleaner 100 slipping from the operator's hand.

[0147] For further information, please refer to Figure 1 The handheld high-pressure cleaner 100 may also be provided with an auxiliary handle 8. The auxiliary handle 8 is arranged between the second handle 6 and the first handle 14, and is located in the space enclosed by the main body 10 and the liquid inlet connector 2. Specifically, the auxiliary handle 8 is arranged below the main body 10 and in front of the liquid inlet connector 2. The arrangement of the auxiliary handle 8 and the second handle 6 can satisfy the requirement that operators with different arm lengths can comfortably hold the handheld high-pressure cleaner 100 for cleaning operations. The distance between the bottom end of the auxiliary handle 8 and the central axis X1 of the main body 10 is smaller than the distance between the bottom end of the liquid inlet 20 and the central axis X1 of the main body 10. Such an arrangement reduces the space occupied by the handheld cleaner 100 of this embodiment, thereby reducing its volume.

[0148] Please continue to refer to Figure 1 , 18 As shown in Figures 1 and 19, the center of gravity G of the handheld high-pressure cleaner 100 (when equipped with a battery pack) is located between the first handle 14 and the second handle 6. It should be noted that the definition of the center of gravity G of the handheld high-pressure cleaner 100 in the present invention refers to the center of gravity of the handheld high-pressure cleaner 100 after being equipped with two battery packs 200. When the position of the center of gravity G of the handheld high-pressure cleaner 100 is inappropriate, the operability of the machine may decrease. By setting the center of gravity G of the entire machine between the first handle 14 and the second handle 6, when the operator uses both arms to hold the handheld cleaner 100 to perform cleaning operations, the weight of the handheld high-pressure cleaner 100 can be concentrated at the position between the first handle 14 and the second handle 6, so that the weight of the body can be borne by both arms at the same time, thereby ensuring the balance of the force on both arms and the stability of the handheld high-pressure cleaner 100 during operation.

[0149] Please continue to refer to Fig.18, is a schematic diagram of the operator operating the machine with both hands. The distance between the operator's rear arm fulcrum (which can be understood as the operator's rear shoulder) and the center of the first handle 14 is M, and the lifting force provided by the rear arm at the first handle 14 is F1 (not shown in the figure), and the distance between the front arm fulcrum (which can be understood as the operator's front shoulder) and the center of the second handle 6 is N, and the lifting force provided by the front arm at the second handle 6 is F2 (not shown in the figure). On the one hand, considering the dynamics of the operation process of the handheld high-pressure cleaning machine 100, when the water flows forward from the liquid outlet 13, the center of gravity of the handheld high-pressure cleaning machine 100 will move forward, thereby increasing the lifting force F2 at the second handle 6; on the other hand, since the first handle 14 is close to the operator and the second handle 6 is far away from the operator, the operator's front arm holding the second handle 6 will naturally extend, that is, the torque N generated by the operator holding the second handle 6 is greater than the torque M generated by holding the first handle. In the case of a relatively large torque, if the lifting force is also large, the operator's arm is prone to soreness and cannot support long-term operation.

[0150] Therefore, in this embodiment, please continue to refer to Fig.19 Preferably, the center of gravity G of the handheld high-pressure cleaner 100 is designed to be closer to the first handle 14, that is, the distance M between the center of gravity G and the center of the first handle 14 is smaller than the distance N between the center of gravity G and the center of the second handle 6. In this way, the difference in torque can be compensated by the different weights borne by the two arms, and the force balance of the two arms can be ensured as much as possible.

[0151] The force balance of the operator's arms is the first consideration for the connection position of the two battery packs 201 and 202. Fig.19 , two battery packs (first battery pack 201 and second battery pack 202) are arranged between the first handle 14 and the second handle 6 in such a way that the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaner 100 and the center of the first handle 14 and the straight-line distance L between the center of the first handle 14 and the center of the second handle 6 in the front-to-back direction (or viewed from the left or right side) is greater than or equal to 35% and less than 50%. The preferred value range of K is 35%≤K≤45%. By moving the center of gravity backward in this way, the lifting force of the arm at the second handle 6 is effectively reduced, thereby reducing the force on the forearm, alleviating the fatigue of the forearm, and providing a better user experience for the operator.

[0152] The center of the first handle 14 should be understood as the center of gravity of the first handle 14 or the gripping point of the first handle 14 or the geometric center of the first handle 14, and the center of the second handle 6 should be understood as the center of gravity of the second handle 6 or the gripping point of the second handle 6 or the geometric center of the second handle 6. The handheld high-pressure cleaner 100 has a vertical line L1 passing through the center of gravity G of the handheld high-pressure cleaner 100, a vertical line L2 passing through the center of the first handle 14, and a vertical line L3 passing through the center of the second handle 6. The above distance D should be understood as the distance between the vertical line L1 and the vertical line L2, and the distance L should be understood as the distance between the vertical line L2 and the vertical line L3. Such a design ensures the balance of the force on both arms and the stability of the handheld high-pressure cleaner 100 during operation.

[0153] In addition, when the handheld high-pressure cleaner 100 is in operation, high-pressure water will be ejected outward from the nozzle to the surface of the object. When the water impacts the surface of the object, the water will inevitably splash backward. Especially when the handheld high-pressure cleaner is used to clean high-altitude objects, in order to prevent the backward splashing water column from splashing onto the battery pack mounting portion and / or the battery pack mounted on the corresponding battery pack mounting portion, in this embodiment, the two battery pack mounting portions 15 are arranged at the rear.

[0154] The above-mentioned prevention of water splashing and affecting the sealing of the battery pack mounting portion 15 and / or the battery pack 200 installed on the corresponding battery pack mounting portion 15 is the second consideration in the design of the matching position of the two battery packs 201 and 202. Specifically, the center of gravity G of the handheld high-pressure cleaner 100 is located between the first handle 14 and the liquid outlet 131, and the first handle 14 is closer to the two battery pack mounting portions 15 than the liquid outlet 131. The center of gravity G of the handheld high-pressure cleaner 100 is mainly determined by the position of the weight motor 3, the position of the pump 4, and the position of the two battery packs 200 installed on the battery pack mounting portion 15. Therefore, the installation configuration of the two battery packs 201, 202 is as follows: Figure 1 As shown, the first battery pack 201 and the second battery pack 202 are arranged between the front end of the liquid outlet 131 and the first handle 14 in such a way that the ratio Q of the distance D between the center of the first handle 14 and the center of gravity G of the handheld high-pressure cleaner 100 and the distance H between the center of gravity G of the handheld high-pressure cleaner 100 and the liquid outlet 131 in the front-to-back direction is less than 1. Preferably, the ratio Q can be greater than or equal to 30% and less than or equal to 80%. Specifically, the ratio Q can be 35%, 40%, 50%, 60%, 70%, 80%. With such a design, the battery pack mounting portion 15 is located at the relatively rear side of the whole machine, far from the liquid outlet 131, and has a better waterproof effect; and when the operator holds the machine with both hands, the operator's forearm can be used to prevent the splashing water column from spreading backwards.

[0155] In addition, the above solution can also be understood as that when the battery packs 201 and 202 are attached to the corresponding battery pack mounting parts 15, the battery packs 201 and 202 are far away from the liquid outlet 131. Specifically, Figure 8 As shown, the first battery pack mounting portion 151 and the second battery pack mounting portion 152 are constructed in such a manner that the ratio C of the distance A between the combined center of gravity G0 of the first battery pack 201 and the second battery pack 202 and the center of the first handle 14 and the distance B between the combined center of gravity G0 and the front end of the liquid outlet 131 is less than 1. Preferably, the ratio C may be 0.3 to 0.6.

[0156] It should be noted that the combined center of gravity G0 of the two battery packs should be understood as the midpoint of the line connecting the center of gravity G1 of the first battery pack and the center of gravity G2 of the second battery pack.

[0157] In addition, as described above, since the center of gravity G of the handheld high-pressure cleaner 100 is mainly determined by the position of the weight motor 3, the position of the pump 4, and the positions of the two battery packs 200 installed on the battery pack installation portion 15. Therefore, in this embodiment, the motor 3, the pump 4, and the two battery packs 200 are distributed in a manner that at least one structure of the motor 3, the pump 4, and the two battery packs 200 is arranged behind the center of gravity G of the handheld high-pressure cleaner 100 to balance the center of gravity position of the whole machine in the front-to-back direction. The motor 3 and the first battery pack 201 and the second battery pack 202 form an energy component, such as Fig. 27 As shown, in the front-to-back direction, the energy component is placed relatively at the rear side of the handheld high-pressure cleaner 100. In detail, in this embodiment, at least part of the structure of the battery pack 200 and the entire motor 3 are located at the rear side of the center of gravity G of the handheld high-pressure cleaner 100. Preferably, as Figure 8 As shown, the centers of gravity G1 and G2 of the two battery packs 200 are both located at the rear side of the center of gravity G of the whole machine (the whole machine should be understood as the state of being equipped with battery packs). Specifically, the first battery pack 201 is plugged into the first battery pack mounting portion 151 in a manner that the center of gravity G1 of the first battery pack 201 is set between the center of gravity G of the handheld high-pressure cleaner 100 and the center of the first handle 14 in the front-to-back direction; the second battery pack 202 is plugged into the second battery pack mounting portion 152 in a manner that the center of gravity G1 of the second battery pack is set between the center of gravity G of the handheld high-pressure cleaner 100 and the center of the first handle 14 in the front-to-back direction. In this embodiment, the positions of the heavy objects are more concentrated, and in the up-down direction, the projections of the battery pack 200 installed on the battery pack mounting portion 15 and the motor 3 on a plane passing through the central axis X1 and perpendicular to the up-down direction at least partially overlap. The projection of the battery pack 200 mounted on the battery pack mounting portion 15 and the pump 4 on a plane passing through the central axis X1 and perpendicular to the up-down direction at least partially overlaps.

[0158] In addition, in order to ensure the balance of the handheld high-pressure cleaner 100 in the left-right direction even when two battery packs 200 are installed, and to maintain better operability of the tool. In this design, the two battery packs 200 are installed in the width direction (i.e., the left-right direction) of the main body housing 1.

[0159] The above-mentioned maintenance of the operation balance of the handheld high-pressure cleaner 100 in the left-right direction is the third consideration factor for the design of the connection positions of the two battery packs 201 and 202. Specifically, please refer to FIGS. 2-13, Figure 16 to Figure 19 , Fig. 22 , Figures 27-28 As shown, the main body portion 10 is provided with a central dividing plane S, and the main body portion 10 is arranged approximately symmetrically with respect to the central dividing plane S. The central axis X1 of the main body portion 10 is located on the central dividing plane S. In the present invention, the central dividing plane S can be understood as a plane extended from the seam where the first half shell 11 and the second half shell 12 are joined. The two battery pack mounting portions 15 are arranged on the left and right sides of the central dividing plane S in a back-to-back manner, that is, the two battery pack mounting portions 15 are arranged side by side in a separated manner on the left and right sides of the central dividing plane S of the main body portion 10. Specifically, the two battery pack mounting portions 15 are symmetric with respect to the central dividing plane S in the left-right direction. In addition, the insertion directions of each of the battery packs 201 and 202 can be the same. Such a design ensures the relative balance of the machine in the left-right direction and the reliability of the operation, and the two battery packs 201 and 202 are loaded and unloaded in one direction at a time, which is convenient for the user to disassemble and assemble the operation.

[0160] Please continue to refer to Figure 2 and Figure 3 , the width of the main body portion 10 in the left-right direction is W1, and the maximum distance between the two battery pack mounting surfaces in the left-right direction is W2. In order to suppress the maximization of the high-pressure cleaner 100 in the width direction. Preferably, the maximum distance W2 between the two battery pack mounting surfaces in the left-right direction is not greater than the width W1 of the main body portion 10 in the left-right direction, that is, W2 ≤ W1. That is, in the left-right direction, the two battery pack mounting portions 15 are arranged side by side on the left and right sides of the central dividing plane S in such a way that the maximum distance W2 between the two battery pack mounting surfaces is less than or equal to the width W1 of the main body portion of the handheld high-pressure cleaner 100. Preferably, in this embodiment, W2 < W1. That is, suppressing the maximization of the handheld high-pressure cleaner 100 in the width direction is the fourth consideration factor for the design of the connection positions of the two battery packs 201 and 202 in the present invention.

[0161] It should be noted that the maximum distance W2 here should be understood as the distance between the leftmost edge of the first battery pack mounting portion 151 and the rightmost edge of the second battery pack mounting portion 152. Further, when the two battery pack mounting surfaces are parallel to the dividing plane S, the maximum distance W2 here is the straight-line distance between the two battery pack mounting surfaces, that is, the above-mentioned "edge" should be understood as the distance between the surfaces; when the two battery pack mounting surfaces are inclined relative to the dividing plane S, in other words, the two battery pack mounting surfaces expand outward compared to the dividing plane S, the maximum distance here should be understood as the distance between the most outwardly expanded edges of the two battery pack mounting surfaces. At this time, the above-mentioned "edge" should be understood as the distance between two lines or two symmetrical points.

[0162] Several implementations of the design of the mating positions of the two battery packs 200 are introduced below. These implementations satisfy at least one of the above four considerations.

[0163] Please continue to refer to Figures 1 to 8 , Figures 16 to 19 , Figures 27-28 , a first embodiment of the design of the mating positions of the two battery packs, wherein in the first embodiment, the above four considerations can all be met. Specifically, the two battery pack mounting parts 151, 152 are arranged side by side on the left and right sides of the center dividing surface S, and the battery pack mounting parts 151, 152 are arranged close to the main body 10. More specifically, the two battery pack mounting parts 151, 152 are located in the enclosed space 101 formed by the above-mentioned main body 10 and the first handle 14. The two battery pack mounting parts 151, 152 are located below the main body 10, in front of the first handle 14, and behind the liquid inlet connector 2. The first handle 14 and the battery pack mounting parts 151, 152 are located on the same side of the central axis X1 of the main body 10. Through this arrangement, no additional expansion area is required in the up and down direction or the left and right direction to place the battery pack 200, thereby ensuring that the whole machine has a compact structure and a small size.

[0164] When the two battery packs 201 and 202 are both attached to the battery pack mounting parts 151 and 152 in the attachment direction from top to bottom, the distance between the center plane S of the main body 10 and the battery pack mounting surface must not be less than the distance between the center plane S of the main body 10 and the left end face of the main body 10, or the distance between the center plane S of the main body 10 and the battery pack mounting surface must not be less than the distance between the center plane S of the main body 10 and the right end face of the main body 10, so as to ensure that the left end face or the right end face of the main body 10 will not interfere with the insertion of the battery packs 201 and 202, so that the battery packs 201 and 202 can be slidably attached to the battery pack accommodating chamber 1510. However, with such a design, the whole machine will become very wide in the left and right directions, and the volume of the whole machine will increase.

[0165] It should be noted that, here, “the attachment direction of the battery packs 201 and 202 is from top to bottom” can be understood as from the front upper side to the rear lower side, or from directly above to directly below, or from the rear upper side to the front lower side. The “left end face of the main body 10” can be understood as the leftmost plane away from the center dividing plane S of the main body 10 and parallel to the center dividing plane S of the main body 10. The “right end face of the main body 10” can be understood as the rightmost plane away from the center dividing plane S of the main body 10 and parallel to the center dividing plane S of the main body 10. The distance between the left end face and the right end face of the main body 10 constitutes the width W1 of the main body 10 in the left-right direction.

[0166] In view of this, in this embodiment, the direction of attachment of the battery packs 201 and 202 to the battery pack mounting portions 151 and 152 is designed as follows: the first battery pack 201 and the second battery pack 202 slide from bottom to top to attach to the corresponding battery pack mounting portions 151 and 152. In other words, the opening 1511 provided in the battery pack receiving chamber 1510 for sliding attachment of the battery packs 201 and 202 is open downward (such as Fig.16 and 17 ), there is no other component blocking or interfering. With such a structural design, the two battery pack mounting parts 151, 152 can be made thinner, greatly reducing the size of the entire device in the width direction. That is, as described above, the maximum distance W2 between the two battery pack mounting parts 151, 152 in the left-right direction is not greater than the width W1 of the main body 10 in the left-right direction.

[0167] It should be noted that the term "from bottom to top" here can be understood as from the rear lower side obliquely upward or from the lower side vertically upward or from the front lower side obliquely upward. Preferably, the first battery pack 201 and the second battery pack 202 slide obliquely upward from the rear lower side to attach to the corresponding battery pack mounting parts 151 and 152 (such as Figure 6 As shown). With such a design, from a mechanical point of view, one of the decomposition forces of the gravity of the first battery pack 151 and the second battery pack 152 is backward, which reduces the downward decomposition force, reduces the supporting force of the card slot 1517 on the buckle portion 2072, and reduces the risk of the first battery pack 151 and the second battery pack 152 being separated from the corresponding battery pack mounting portion 15.

[0168] Further, such as Figure 1 and 2As shown, the first battery pack mounting portion 151 includes a first bearing portion 1519, and the second battery pack mounting portion 152 includes a second bearing portion 1529. The bottom walls 1511 of the two battery pack mounting portions are formed on the corresponding first and second bearing portions 1519 and 1529, respectively. The first bearing portion 1519 and the second bearing portion 1529 are symmetrically arranged about the center plane S. The first bearing portion 1519 and the second bearing portion 1529 are spliced ​​and connected to each other to form a sole portion 1520, and the sole portion 1520 includes a hollow mounting cavity for installing a control component. In the present embodiment, in order to suppress the maximization of the handheld high-pressure cleaner 100 in the width direction, the sole portion 1520 is relatively thin. Specifically, as Figure 2 As shown, the width W4 of the sole portion 1520 in the left-right direction is not greater than the width W5 of the liquid outlet portion 13 in the left-right direction. With such a design, even if the handheld high-pressure cleaner 100 is in a state of being connected to the battery pack 200, the whole machine is very compact in the left-right direction.

[0169] Furthermore, when the handheld high-pressure cleaner 100 needs to be placed, at least two support points need to be selected to contact the ground or work surface (support plane), and the two support points should be distributed on the front and back sides, so that the handheld high-pressure cleaner 100 can be stably placed on the ground or work surface through the cooperation of the support points distributed on the front and back. Figure 2 and Fig.28 , wherein the portion of the liquid outlet 13 in contact with the ground or work surface (support plane) is taken as the first support point U. For the selection of the rear support point, considering that in this embodiment, the width of the sole portion 1520 is relatively thin, and the position of the weight motor 3, the position of the pump 4, and the two battery packs 200 are all relatively close to the sole portion 1520, the relatively thin sole portion 1520 cannot cooperate with the first support point U to place the handheld high-pressure cleaner 100 stably.

[0170] In this embodiment, the handheld high-pressure cleaner 100 can be stably placed when connected to the battery pack 200 by cleverly using the arrangement of the two battery packs 200. In addition, the inventors have also found that the position of the center of gravity G of the whole machine is related to whether the handheld high-pressure cleaner 100 connected to the battery pack 200 can be stably placed on the ground or on a work surface, as described below.

[0171] Since the first battery pack 201 and the second battery pack 202 are both arranged at the rear, and the first battery pack 201 and the second battery pack 202 are symmetrically distributed on both sides of the mid-plane S, the two battery packs 200 can be installed on the corresponding battery pack installation parts 151 and 152 respectively, and the part of the first battery pack 201 in contact with the ground or the work surface is used as the second support point V, and the part of the second battery pack 202 in contact with the ground or the work surface is used as the third support point W. Specifically, as Fig.28 As shown, the first support point U, the second support point V, and the third support point W are connected end to end to form a triangle. More specifically, the first support point U is located on the extension surface of the median plane S, and the second support point V and the third support point W are symmetrical about the median plane S. Therefore, the triangle formed by the three support points is an isosceles triangle. When the center of gravity G of the whole machine is located in the triangle formed by the three support points, the whole machine can be placed stably using the triangle stability principle; when the center of gravity G of the whole machine is not in the space enclosed by the three support points, the whole machine cannot be placed stably.

[0172] One implementation of the second support point V and the third support point W is that the second support point V and the third support point W are both in a straight line. In other words, the edge of the first battery pack 201 in contact with the ground or work surface is in linear contact; the edge of the second battery pack 202 in contact with the ground or work surface is also in linear contact. At this time, the distance between the leftmost edge of the second support point V and the rightmost edge of the third support point W is Fig.28 The length of the base VW of the triangle shown.

[0173] Another implementation of the second support point V and the third support point W is that the second support point V and the third support point W are both fixed points. In other words, the edge of the first battery pack 201 in contact with the ground or the work surface is an arc, and the first battery pack 201 is in point contact with the ground or the work surface; the edge of the second battery pack 202 in contact with the ground or the work surface is also an arc, and the second battery pack 202 is in point contact with the ground or the work surface. At this time, the distance between the two fixed points in the left and right direction is Fig.28 The length of the base VW of the triangle shown.

[0174] Of course, the supporting points where the two battery packs 200 contact the ground or the work surface may also be in other forms.

[0175] Furthermore, in this embodiment, since the width of the liquid outlet 13 in the left-right direction is relatively small, specifically, the width of the liquid outlet 13 in the left-right direction is approximately 40 to 55 mm. In order to ensure that the three supporting points stably support the entire machine, the maximum length VW of the second supporting point V and the third supporting point W in the left-right direction is greater than the maximum width of the liquid outlet 13.

[0176] As described above, in this embodiment, the attachment direction of the battery packs 201 and 202 to the battery pack mounting portions 151 and 152 is designed as follows: the first battery pack 201 and the second battery pack 202 slide upward from the rear lower side to be attached to the corresponding battery pack mounting portions 151 and 152. Fig.28 As shown, the second support point V can be determined to be located at the lower left end of the first battery pack 201, and the third support point W can be determined to be located at the lower right end of the second battery pack 202. Figure 7 and Fig.28 , the second support point V is located at the rear side of the center of gravity G1 of the first battery pack 201, and the third support point W is located at the rear side of the center of gravity G2 of the second battery pack 202. As described above, the center of gravity G1 of the first battery pack 201 and the center of gravity G2 of the second battery pack 202 are both located at the rear side of the weight G of the whole machine. Therefore, in the front-to-back direction, the projection G' of the center of gravity G of the whole machine on the ground or the work surface must be located in front of the second support point V and the third support point W. Of course, in other embodiments, the projection G' of the center of gravity G of the whole machine on the ground or the work surface can also be located on the line segment formed by connecting the second support point V and the third support point W.

[0177] Furthermore, in this embodiment, the weight of the motor 3 is about 435 grams; the weight of the pump 4 is about 1 kilogram, the weight of a single battery pack is about 400 grams, and the specifications of the two battery packs 200 are the same, so the weight of the two battery packs 200 is 800 grams. Considering that the center of gravity G of the handheld high-pressure cleaner 100 is mainly determined by the position of the heavy object motor 3, the position of the pump 4, and the position of the two battery packs 200 installed on the handheld high-pressure cleaner 100. The motor 3 and the pump 4 are both located in the main body 10, and the sum of the weight of the motor 3 and the pump 4 is greater than the sum of the weight of the two battery packs 200. Therefore, the center of gravity G of the whole machine should be located in the main body 10.

[0178] Furthermore, in order to take into account the smaller width of the entire machine and to ensure stable support at the three support points, the angle formed by the side UV formed by the first support point U and the second support point V (i.e., one waist of the isosceles triangle) and the side UW formed by the first support point U and the third support point W (i.e., the other waist of the isosceles triangle) is in the range of 20 degrees to 45 degrees, that is, it can be 30 degrees, 35 degrees, 40 degrees, etc.

[0179] In this embodiment, the main body shell 1 is a left-right Haversian structure, and the first half shell 11 and the second half shell 12 of the main body shell 1 are not much different. The weight difference between the component part housed in the main body shell 1 and located in the first half shell 11 and the component part in the second half shell 12 is not much. In addition, the two battery packs 200 connected to the main body shell 1 are arranged on the left and right, and have the same specifications. Therefore, the center of gravity G of the handheld high-pressure cleaner 100 does not deviate much from the center plane S to the left or right. Specifically, as Fig.28As shown, the three support points are connected to form a plane Z. In the left-right direction, the center of gravity G of the whole machine is configured so that the projection G' on the plane Z is located on the vertical line of the triangle, or the projection G' is located in a range of deviation from the vertical line of the triangle to the left or right that is not greater than half of the size of the base VW of the triangle. The two battery packs 200 are installed to the corresponding battery pack installation parts. It should be noted that the vertical line here refers to the vertical line drawn from the first support point U to its opposite side, that is, the vertical line is the height of the base VW. In addition, the intersection of the vertical line and the base VW is the foot of the perpendicular.

[0180] Specifically, in one embodiment, the center of gravity G of the whole machine is configured so that its projection G' on the plane Z constructed by the triangle can be offset to the left or backward by half the size of the base VW of the triangle, that is, the projection G' coincides with the point V or W. In another embodiment, the projection G' is located in the area enclosed by the three sides of the triangle, and the distance that the projection G' is offset to the left or backward is less than half the size of the base VW of the triangle.

[0181] Preferably, Fig.28 As shown, the center of gravity G of the whole machine is configured so that the projection G' on plane Z is located on the perpendicular line of the triangle, or the projection G' is located so that the ratio of the dimension deviated to the left or right from the perpendicular line of the triangle to the dimension of the base VW of the triangle is 0.55 to 0.8, and the two battery packs are installed to the corresponding battery pack installation parts. The above ratio range can be 0.6, 0.65, 0.7, 0.75, etc. Preferably, the above ratio is 0.68. Specifically, in this embodiment, the center of gravity G of the whole machine is configured so that the dimension range of the projection G' on plane Z offset to the left is not greater than the length of G'P; the center of gravity G of the whole machine is configured so that the dimension range of the projection G' on plane Z offset to the right is not greater than the length of G'O.

[0182] It should be noted that the projection G' of the center of gravity G of the whole machine is configured to deviate to the left or right from the perpendicular line of the triangle by a distance that ensures that G' is located within the triangular plane enclosed by the triangle.

[0183] For the implementation method in which the three support points form an isosceles triangle, in the front-to-back direction, the ratio of the distance between the projection G' of the whole machine center of gravity G on the plane Z and the vertical line L4 where the first support point U is located, and the distance between the vertical line L4 where the first support point U is located and the straight line L5 where the base of the triangle formed by connecting the second support point V and the third support point W is 0.55 to 0.8. Preferably, as Fig.28 As shown, the center of gravity G of the whole machine is configured so that its projection G' on the triangle plane Z is located on the vertical line of the triangle, or the projection G' is located to the left or right of the vertical line of the triangle. The above ratio range can be 0.6, 0.65, 0.7, 0.75, etc. Preferably, the above ratio is 0.68.

[0184] With such a design, the handheld high-pressure cleaner 100 can be stably in a standing position after installing two battery packs 200, and will not tilt to the left or right, nor will it tilt forward or backward.

[0185] like Figure 8 As shown in FIG. 1 , it is a top view of the handheld high-pressure cleaner 100 after two battery packs 200 are connected. In this embodiment, the distance between the two battery pack mounting portions 151 and 152 in the width direction (left-right direction) is small. Therefore, even if the handheld high-pressure cleaner 100 is in the state of being connected with the battery pack 200, the whole machine is very compact in the left-right direction. Specifically, as Figure 7 As shown, the ratio of the width W3 of the first battery pack 201 and the second battery pack 201 in the left-right direction to the width W1 of the main body 10 in the left-right direction is in the range of 1.2 to 2; preferably, the ratio is in the range of 1.5.

[0186] Please continue to refer to Figure 6 and Figure 7 , X3 indicates the axis of the first battery pack 201 attached to the first battery pack mounting portion 151 by sliding, and the axis passes through the center of gravity G1. X4 indicates the axis of the second battery pack 202 attached to the second battery pack mounting portion 152 by sliding, and the axis passes through the center of gravity G2. Axis X3 and axis X4 are substantially parallel to the extension direction of the central axis of the first handle 14. Axis X3 and axis X4 are substantially parallel to the median plane of the main body, and are symmetrically arranged relative to the median plane S of the main body 10. In other words, both battery packs 201, 202 slide from the rear lower side to the front upper side to attach to the corresponding battery pack mounting portions 151, 152.

[0187] Of course, the axis X3 and the axis X4 can also be configured to be non-parallel to the center plane S of the main body 10. Specifically, the extension direction of the axis X3 can intersect with the center plane S to form a first acute angle, and the extension direction of the axis X4 can intersect with the center plane S to form a second acute angle, and the first acute angle is equal to the second acute angle. And the sum of the angles of the first acute angle and the second acute angle is still an acute angle. In other words, the axis X3 and the axis X4 are both symmetrically arranged relative to the center plane S of the main body 10, and the two battery packs 201 and 202 can slide from the rear lower side to the front upper side to attach to the corresponding battery pack mounting parts 151 and 152.

[0188] The design of the two battery pack mating positions in the following embodiment takes into account at least one of the above four considerations, and the difference from the first embodiment mainly lies in the specific positional relationship between the battery pack mounting portion and the main body 10 and the assembly direction of the battery pack 200.

[0189] Specifically, Figures 9-10This is a second embodiment of the mating position of the two battery packs 200, which satisfies at least three of the above four considerations. In this embodiment, at least part of the two battery pack mounting parts 151 and 152 provided on the main housing 10 is arranged on the main body 10. Furthermore, the main body 10 includes a motor housing 102 for accommodating the motor 3 and a pump housing 103 for accommodating the pump 4. The above two battery pack mounting parts 151 and 152 are at least partially arranged on the left and right sides of the pump housing 103. In other words, in this embodiment, the distance between the two battery pack mounting parts 151 and 152 is greater than the width of the main body 10 in the left and right directions. With such a design, the left and right widths of the whole machine are relatively increased, but the two battery mounting parts 151 and 152 are arranged around the pump housing 103. In the front-to-back direction, the distance between the two battery pack mounting parts 151 and 152 and the pump 4 is greater than the distance between the two battery pack mounting parts and the motor 3. During the cold water suction operation of the handheld high-pressure cleaner 100, the cleaning liquid flowing through the pump 4 (when the sucked cleaning liquid is pond water, tap water or natural cold water in the box) can transfer cold air to the battery pack attached to the battery pack mounting parts 151 and 152, and can cool the heat generated by the battery packs 201 and 202 during use.

[0190] In addition, in the present embodiment, the attachment direction of the two battery packs 201, 202 can be designed as follows: the battery packs 201, 202 are fitted to the battery pack mounting parts 151, 152 by sliding from top to bottom. Among them, from top to bottom here can be understood as oblique insertion from the front upper side to the rear lower side, or oblique insertion from the rear upper side to the front lower side, or vertical insertion from the upper direction to the lower side. Such a design can prevent the attached battery packs 201, 202 from detaching from the battery pack mounting parts 151, 152. Preferably, the attachment direction of the battery packs 201, 202 is that the battery packs slide vertically downward from directly above to be attached to the corresponding battery pack mounting parts. The attachment direction of the battery pack is opposite to the direction in which the external water source is introduced into the liquid inlet 20. The battery pack mounting part is configured to allow the battery pack to be configured between the liquid inlet connector 2 and the first handle 14.

[0191] In addition, in this embodiment, there are two possible positions for the attachment direction of the battery packs 201 and 202 and the center plane S of the main body 10. The first one: please refer to Fig. 9 and Fig.10, the attachment direction of the battery packs 201 and 202 is arranged parallel to the dividing plane S; the second type: the attachment direction of the battery packs 201 and 202 intersects with the dividing plane S (not shown). For the first type, it can be referred to the first embodiment, the axis passing through the center of gravity of the first battery pack 201 is roughly parallel to the dividing plane S, and the axis passing through the center of gravity of the second battery pack is also roughly parallel to the dividing plane S. For the second type, it can be referred to the first embodiment, the axis passing through the center of gravity of the first battery pack 201 intersects with the dividing plane S to form a first acute angle, and the axis passing through the center of gravity of the second battery pack intersects with the dividing plane S to form a second acute angle. The first acute angle is equal to the second acute angle. And the sum of the angles of the first acute angle and the second acute angle is still an acute angle.

[0192] In addition, if Fig.10 As shown, the battery pack 201 also includes a display device 2011 that characterizes the working characteristics of the battery pack. The display device 2011 is arranged opposite to the plug-in direction of the battery pack 201. The display device 2011 includes a control panel (not shown), a power display light 2012 electrically connected to the control panel, and a power display button 2013, and the power display button 2013 can be operated to be triggered to light up the power display light 2012. In this embodiment, the attachment direction of the battery pack 201 is set from top to bottom, so that the operator can know the power status of each battery pack without turning over the machine during operation.

[0193] The design of the two battery pack mating positions in the following embodiment takes into account at least one of the above four factors, and the difference from the second embodiment mainly lies in the specific positional relationship between the battery pack mounting parts 151, 152 and the main body 10 and the assembly direction of the battery pack 200.

[0194] Specifically, Figures 11 to 13 The third embodiment of the present invention is designed for the mating position of the two battery packs 200. In this embodiment, at least part of the two battery pack mounting parts 151 and 152 provided on the main body housing 1 are arranged on the main body 10. Furthermore, the above two battery pack mounting parts 151 and 152 are both arranged on the pump housing 103. In other words, in this embodiment, the distance between the two battery pack mounting parts 151 and 152 is greater than the width of the main body 10 in the left and right directions. With such a design, the left and right widths of the whole machine are relatively increased, but the two battery mounting parts 151 and 152 are arranged around the pump housing 103. During the cold water operation of the handheld high-pressure cleaner 100, the cold air can be transferred to the battery pack 200 attached to the battery pack mounting part through the cold water in the pump 4, and the battery pack 200 can be cooled during use.

[0195] The main difference between this embodiment and the previous embodiment is that the attachment direction of the battery pack 200 is different. Figures 11 to 13As shown, the attachment direction of the battery packs 201 and 202 is consistent with the extension direction of the central axis X1 of the main body 10; or in other words, the attachment direction of the battery packs 201 and 202 is consistent with the extension direction of the motor shaft (not numbered). In addition, in order to facilitate the operator to carry or hold the machine with one hand and assemble the battery pack 200 with the other hand, preferably, the attachment direction of the battery pack 200 is opposite to the liquid discharge direction. That is, the attachment direction of the battery pack 200 is from front to back.

[0196] Furthermore, Fig.11 This is only a simplified variant embodiment of the positional relationship between the attachment direction of the battery pack 200 and the center plane S of the main body 10. Fig.11 In the embodiment, the attachment direction of the battery pack 200 is inclined with respect to the center dividing plane S, and Figures 12-13 In the embodiment, the attachment direction of the battery pack 200 is arranged parallel to the center dividing plane S.

[0197] The design of the mating positions of the two battery packs 200 in the following embodiment takes into account at least one of the above four factors. The difference between the first, second and third embodiments mainly lies in the specific positions of the battery pack mounting portions 151 and 152 and the assembly directions of the battery packs 201 and 202.

[0198] Specifically, Fig.14 , 15 The fourth embodiment of the mating position of the two battery packs 201 and 202 is shown, and the two battery pack mounting parts 151 and 152 extend across the above-mentioned center plane S in the left-right direction, and the two mounting parts 151 and 152 are configured to be arranged side by side in the front-to-back direction, so that one 151 of the two battery pack mounting parts is constructed to be closer to the liquid outlet 131 than the other 152. Further, at least part of the two battery pack mounting parts 151 and 152 arranged on the main body housing 1 is arranged on the main body 10. The two battery pack mounting parts 151 and 152 are arranged on the upper and lower sides of the main body 10 opposite to the liquid inlet connector 2. Specifically, the two battery pack mounting parts 151 and 152 are both arranged on the upper side of the main body 10. Furthermore, the attachment direction of the two battery packs 200 is the same, and they are connected to the corresponding battery pack mounting parts in a manner perpendicular to the extension direction of the motor shaft (or the center plane S). Preferably, the battery pack 200 is attached to the corresponding battery pack mounting portions 151 , 152 in an attachment direction from right to left.

[0199] With this design, on the one hand, the battery pack mounting parts 151, 152 are arranged on the upper and lower sides of the liquid inlet connector 2, so that the battery pack 200 is away from the water source, thereby improving the waterproof effect of the battery pack 200; on the other hand, the two battery packs 200 are plugged in and out in the same direction, which is convenient for user operation.

[0200] In the above four embodiments, although the specific installation positions of the two battery packs 200 are different, there is at least one common point: that is, the two battery pack installation parts are both located between the first handle 14 and the second handle 6, which can ensure that the two battery packs (the first battery pack 201 and the second battery pack 202) are arranged between the first handle 14 and the second handle 6 in a manner such that the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle 14 and the distance L between the center of the first handle 14 and the center of the second handle 6 in the front-to-back direction (or viewed from the left side) is greater than or equal to 35% and less than or equal to 50%.

[0201] The positions of the mounting parts of the two battery packs in the following embodiment are quite different from those in the above embodiment. The main difference is that at least one battery pack mounting part is not disposed between the first handle 14 and the second handle 6 as described in detail below.

[0202] Please refer to Fig.21 and 22 , which is a fifth embodiment of the design of the two battery pack mating positions, the positions of the two battery pack mounting portions 151, 152 are configured so that when the two battery packs 201, 202 are mounted to the corresponding battery pack mounting portions 151, 152, the lower surfaces of the two battery packs 201, 202 are located on the same plane. In other words, the lower surfaces of the two battery packs 201, 202 are coplanar.

[0203] Specifically, Fig.21 As shown, the liquid inlet connector 2 and the two battery pack mounting parts 151 and 152 are all located on the same side of the central axis X1 of the main body 10, and the two battery pack mounting parts 151 and 152 extend across the above-mentioned mid-plane S in the left-right direction, and the two mounting parts 151 and 152 are configured to be arranged side by side in the front-back direction, so that one of the two battery pack mounting parts 151 and 152 is constructed to be closer to the liquid outlet 131 than the other. The distance between the bottom end of the liquid inlet 20 and the central axis X1 of the main body 10 is smaller than the distance between the lower surface of the battery pack 200 and the central axis X1 of the main body 10; and the distance between the free end of the first handle 14 and the central axis X1 of the main body 10 is smaller than the distance between the battery pack mounting surface and the central axis X1 of the main body 10. That is, the battery pack mounting parts 151 and 152 are arranged at the farthest end below the main body 10.

[0204] Furthermore, the front end of at least one battery pack mounting portion 151 extends forward beyond the vertical line L2 where the center of gravity G of the handheld high-pressure cleaner is located. With this design, when the two battery packs 201 and 202 are respectively installed to the battery pack mounting portions 151 and 152, the two coplanar battery packs 201 and 202 can support the handheld high-pressure cleaner 100 in a standing state.

[0205] In addition, the two battery packs 200 have the same attachment direction and are connected to the corresponding battery pack mounting portions 151 and 152 in a manner perpendicular to the extension direction of the motor shaft (or the midplane S). Preferably, the battery pack 200 is attached to the corresponding battery pack mounting portions 151 and 152 in an attachment direction from right to left.

[0206] Please refer to Fig.23 and 24 , which is a sixth embodiment of the design of the mating position of the two battery packs 200. The positions of the two battery pack mounting portions 151, 152 are configured so that when the two battery packs 201, 202 are mounted to the corresponding battery pack mounting portions 151, 152, the weight difference of the functional components (motor 3, pump 4, speed reduction mechanism, battery pack 200) on the front and rear sides of the first handle 14 does not exceed 20%.

[0207] Specifically, the two battery pack mounting parts 151, 152 are located on the end of the first handle 14 away from the main body 10. The two battery pack mounting parts 151, 152 are arranged on the left and right sides of the center dividing plane S in opposite directions, and are symmetrical with respect to the center dividing plane S. Specifically, the two battery pack mounting parts 151, 152 are arranged side by side on the left and right sides of the main housing 1 in the left-right direction. In addition, the plug-in direction of each battery pack 201, 202 can be the same as each other. With such a design, the machine is relatively balanced in the left-right direction to ensure the reliability of operation, and the two battery packs 201, 202 can be loaded and unloaded in one direction at a time, which is convenient for users to disassemble and assemble.

[0208] In the present invention, the handheld high pressure cleaning machine 100 further includes an accessory attachment portion (not shown) integrally formed or mounted on the liquid outlet 131, the accessory attachment portion being operably connected to the spray rod, and the cleaning liquid flowing into the main handheld high pressure cleaning machine 100 can be sprayed outward from the spray rod. The spray rod includes a long gun spray rod 300 or a short gun spray rod 400 that can be selectively detachably connected to the accessory attachment portion. For details, please refer to Fig.16 As shown, when the handheld high pressure cleaning machine 100 is connected to the long gun 300, the handheld high pressure cleaning machine 100 is in the first working mode; Fig.17 When the handheld high-pressure cleaner 100 is connected to the short gun 400, the handheld high-pressure cleaner 100 is in the second working mode. Specifically, the water outlet pressure corresponding to the high-speed gear of the handheld high-pressure cleaner 100 in the first working mode is different from the water outlet pressure corresponding to the high-speed gear of the handheld high-pressure cleaner 100 in the second working mode; the water outlet pressure corresponding to the low-speed gear of the handheld high-pressure cleaner 100 in the first working mode is different from the water outlet pressure corresponding to the low-speed gear of the handheld high-pressure cleaner 100 in the second working mode. The user can select the corresponding gun rod adaptation according to the corresponding working condition requirements.

[0209] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A handheld high-pressure cleaning machine, comprising: A host housing, on which a battery pack mounting portion is mounted or integrally formed; A liquid outlet, arranged at a free end of the main body housing; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output cleaning liquid; A battery pack, mounted on the battery pack mounting portion of the host housing, for supplying power to the motor; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The center of gravity G of the handheld high-pressure cleaner is located between the first handle and the liquid outlet, and the first and second battery packs are arranged between the liquid outlet and the first handle in a manner such that in the front-to-back direction, a ratio Q of a distance D between the center of the first handle and the center of gravity G of the handheld high-pressure cleaner and a distance H between the center of gravity G of the handheld high-pressure cleaner and the front end of the liquid outlet is less than 1.

2. The handheld high-pressure cleaning machine according to claim 1, characterized in that: The ratio Q is greater than or equal to 30% and less than or equal to 80%.

3. The handheld high-pressure cleaning machine according to claim 1, characterized in that: The host housing includes a main body, the motor and the pump are both located in the main body, the main body and the first handle cooperate to form an enclosed space, and the first and second battery pack installation parts are both located in the enclosed space.

4. The handheld high-pressure cleaning machine according to claim 3, characterized in that: The main body housing further includes a liquid outlet pipe, which is arranged on a side of the main body away from the first handle, and the liquid outlet is arranged at a free end of the liquid outlet pipe.

5. The handheld high-pressure cleaning machine according to claim 3, characterized in that: The handheld high-pressure cleaner includes a liquid inlet connector having a liquid inlet, wherein the liquid inlet is in fluid communication with the pump, and the first and second battery pack mounting portions are disposed between the liquid inlet connector and the first handle and are located below the main body.

6. The handheld high-pressure cleaning machine according to claim 1, characterized in that: The front end of the first handle is closer to the first and second battery pack installation parts than the front end of the liquid outlet.

7. The handheld high-pressure cleaning machine according to claim 1, characterized in that: The motor and the first and second battery packs form an energy component. In the front-to-back direction, the energy component is placed at a relatively rear side of the handheld high-pressure cleaner.

8. The handheld high-pressure cleaning machine according to claim 1, characterized in that: The handheld high-pressure cleaning machine further comprises an accessory attachment portion integrally formed on or mounted on the liquid outlet and a spray bar connected to the accessory attachment portion, and the cleaning liquid can be sprayed outward from the spray bar.

9. The handheld high-pressure cleaning machine according to claim 8, characterized in that: The spray bar includes a long gun spray bar or a short gun spray bar that is selectively detachably connected to the accessory attachment portion.

10. The handheld high pressure cleaning machine according to claim 1, characterized in that: The first battery pack installation portion and the second battery pack installation portion are configured in such a manner that the first battery pack and the second battery pack can be separately disposed on the left and right sides of the main body housing.

11. The handheld high-pressure cleaning machine according to claim 10, characterized in that: The main body housing comprises a main body, the motor and the pump are both located in the main body, the main body is provided with a center plane, and the main body is substantially symmetrically arranged relative to the center plane.

12. The handheld high-pressure cleaning machine according to claim 11, characterized in that: The first battery pack installation portion and the second battery pack installation portion are symmetrical to each other about the mid-plane.

13. The handheld high pressure cleaning machine according to claim 11, characterized in that: The first and second battery pack mounting parts are arranged side by side on the left and right sides of the mid-plane in such a way that the distance W2 between the leftmost edge of the first battery pack mounting part and the rightmost edge of the second battery pack mounting part in the left-right direction is not greater than the width W1 of the main body in the left-right direction.

14. The handheld high-pressure cleaning machine according to claim 10, characterized in that: The first battery pack and the second battery pack are respectively slidably attached to corresponding battery pack mounting portions, and the sliding attachment directions of the first and second battery packs are the same.

15. The handheld high pressure cleaning machine according to claim 14, characterized in that: The first and second battery pack mounting portions are both provided with openings for sliding attachment of the corresponding battery packs, and the openings are arranged downward.

16. A handheld high pressure cleaning machine, comprising: A host housing, on which a battery pack mounting portion is mounted or integrally formed; A liquid outlet, arranged on the main body housing; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output cleaning liquid; A battery pack, mounted on the battery pack mounting portion of the host housing, for supplying power to the motor; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The handheld high-pressure cleaning machine further comprises a second handle, which cooperates with the first handle to realize two-handed operation of the handheld high-pressure cleaning machine; The center of gravity G of the handheld high-pressure cleaner is located between the first handle and the second handle, and the first and second battery packs are arranged between the first handle and the second handle in a manner such that in the front-to-back direction, a ratio K of a distance D between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle to a distance L between the center of the first handle and the center of the second handle is greater than or equal to 35% and less than 50%.

17. The handheld high pressure cleaning machine according to claim 16, characterized in that: The first and second battery packs are arranged between the first handle and the second handle in such a manner that in the front-to-back direction, the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle to the distance L between the center of the first handle and the center of the second handle is greater than or equal to 35% and less than or equal to 45%.

18. The handheld high pressure cleaning machine according to claim 16, characterized in that: The positions of the motor, the pump, and the first and second battery packs are distributed in such a manner that at least one of the motor, the pump, and the first and second battery packs is arranged on the rear side of the center of gravity G of the handheld high-pressure cleaner.

19. The handheld high pressure cleaning machine according to claim 16, characterized in that: The first battery pack is plugged onto the first battery pack mounting portion in such a manner that the center of gravity G1 of the first battery pack is disposed between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle in the front-to-back direction.

20. The handheld high pressure cleaning machine according to claim 16, characterized in that: The second battery pack is plugged onto the second battery pack mounting portion in such a manner that the center of gravity G2 of the second battery pack is disposed between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle in the front-to-back direction.

21. The handheld high pressure cleaning machine according to claim 16, characterized in that: The second handle is arranged closer to the liquid outlet than the first handle.

22. The handheld high pressure cleaning machine according to claim 16, characterized in that: The handheld high-pressure cleaning machine further comprises an accessory attachment portion integrally formed on or mounted on the liquid outlet and a spray bar connected to the accessory attachment portion, and the cleaning liquid can be sprayed outward from the spray bar.

23. The handheld high pressure cleaning machine according to claim 22, characterized in that: The spray bar includes a long gun spray bar or a short gun spray bar that is selectively detachably connected to the accessory attachment portion.

24. A handheld high pressure cleaning machine, comprising: A host housing, on which a battery pack mounting portion is mounted or integrally formed; A liquid outlet, arranged at a free end of the main body housing; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output cleaning liquid; A battery pack, mounted on the battery pack mounting portion of the host housing, for supplying power to the motor; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The first battery pack mounting portion and the second battery pack mounting portion are arranged in such a manner that a ratio C of a distance A between a combined center of gravity G0 of the first battery pack and the second battery pack and a center of the first handle and a distance B between the combined center of gravity G0 and the front end of the liquid outlet is less than 1.

25. The handheld high pressure cleaning machine according to claim 24, characterized in that: In the front-to-back direction, the combined center of gravity G0 is located at the rear side of the center of gravity G of the handheld high-pressure cleaning machine.

26. A handheld high pressure cleaning machine, comprising: A host housing is installed with or integrally formed with a battery pack installation portion, the host housing further comprising a liquid outlet portion, the liquid outlet portion being provided with a liquid outlet formed at a free end portion; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output the cleaning liquid to the outside; A battery pack, mounted on the battery pack mounting portion of the host housing, for supplying power to the motor; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The handheld high-pressure cleaner can be supported on a support plane by the liquid outlet and the first and second battery packs, the portion of the liquid outlet in contact with the support plane is defined as a first support point U, the portion of the first battery pack in contact with the support plane is defined as a second support point V, and the portion of the second battery pack in contact with the support plane is defined as a third support point W, the first, second, and third support points are connected end to end to form a triangle, and the triangle includes a perpendicular line drawn through the first support point U to the straight line on which its opposite side is located; In the left and right directions, the projection G' of the center of gravity G of the handheld high-pressure cleaner on the plane Z formed by the triangular structure is located on the vertical line, or the projection G' is located in a range of dimensions deviating to the left or right from the vertical line that is not greater than half the size of the line segment VW formed by connecting the second and third support points, so that the first and second battery packs are installed to the corresponding battery pack mounting parts.

27. The handheld high pressure cleaning machine according to claim 26, characterized in that: A projection G′ of the center of gravity G of the handheld high-pressure cleaner on the plane Z is located within the area formed by the triangle.

28. The handheld high pressure cleaning machine according to claim 26, characterized in that: The first and second battery packs are installed to the corresponding battery pack installation parts in a manner such that the projection G' of the center of gravity G of the handheld high-pressure cleaner on the plane Z is located on the vertical line, or the projection G' is located such that the ratio of the dimension deviated to the left or right from the vertical line to the dimension of the line segment VW formed by connecting the second and third support points is 0.55 to 0.

9.

29. The handheld high pressure cleaning machine according to claim 26, characterized in that: The host housing includes a main body, the motor and the pump are both located inside the main body, the liquid outlet is arranged on a side of the main body away from the first handle, the liquid outlet includes a liquid outlet pipe connected to the pump fluid and a second handle at least partially arranged around the liquid outlet pipe, the second handle cooperates with the first handle to realize two-handed operation of the handheld high-pressure cleaner.

30. A handheld high pressure cleaning machine comprising: a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow a battery pack to be detachably connected; A liquid outlet, arranged at a free end of the main body housing; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output cleaning liquid; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The center of gravity G of the handheld high-pressure cleaner is located between the first handle and the liquid outlet, and the first and second battery packs are arranged between the liquid outlet and the first handle in a manner such that in the front-to-back direction, a ratio Q of a distance D between the center of the first handle and the center of gravity G of the handheld high-pressure cleaner and a distance H between the center of gravity G of the handheld high-pressure cleaner and the front end of the liquid outlet is less than 1.

31. The handheld high pressure cleaning machine according to claim 30, characterized in that The first battery pack installation portion and the second battery pack installation portion are configured in such a manner that the first battery pack and the second battery pack can be separately disposed on the left and right sides of the main body housing.

32. A handheld high pressure cleaning machine, comprising: a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow the battery pack to be detachably connected; A liquid outlet, arranged on the main body housing; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output cleaning liquid; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The handheld high-pressure cleaning machine further comprises a second handle, which cooperates with the first handle to realize two-handed operation of the handheld high-pressure cleaning machine; The center of gravity G of the handheld high-pressure cleaner is located between the first handle and the second handle, and the first and second battery packs are arranged between the first handle and the second handle in a manner such that in the front-to-back direction, a ratio K of a distance D between the center of gravity G of the handheld high-pressure cleaner and the center of the first handle to a distance L between the center of the first handle and the center of the second handle is greater than or equal to 35% and less than 50%.

33. A handheld high pressure cleaning machine comprising: a host housing having a battery pack mounting portion mounted thereon or integrally formed therewith, the battery pack mounting portion being configured to allow a battery pack to be detachably connected; A liquid outlet, arranged at a free end of the main body housing; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output cleaning liquid; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The first battery pack mounting portion and the second battery pack mounting portion are arranged in such a manner that a ratio C of a distance A between a combined center of gravity G0 of the first battery pack and the second battery pack and a center of the first handle and a distance B between the combined center of gravity G0 and the front end of the liquid outlet is less than 1.

34. A handheld high pressure cleaning machine comprising: A host housing is mounted with or integrally formed with a battery pack mounting portion, the battery pack mounting portion is configured to allow the battery pack to be detachably connected, the host housing further comprising a liquid outlet portion, the liquid outlet portion having a liquid outlet formed at a free end portion; A first handle for an operator to hold, the first handle being mounted on or integrally formed with the main body housing and disposed at an end away from the liquid outlet; A motor, disposed in the main body housing, to provide driving force for the handheld high-pressure cleaning machine to operate; A pump, wherein the motor can drive the pump to output the cleaning liquid to the outside; Characterized in that the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion, and a second battery pack connected to the second battery pack mounting portion; The handheld high-pressure cleaner can be supported on a support plane by the liquid outlet and the first and second battery packs, the portion of the liquid outlet in contact with the support plane is defined as a first support point U, the portion of the first battery pack in contact with the support plane is defined as a second support point V, and the portion of the second battery pack in contact with the support plane is defined as a third support point W, the first, second, and third support points are connected end to end to form a triangle, and the triangle includes a perpendicular line drawn through the first support point U to the straight line on which its opposite side is located; In the left and right directions, the projection G' of the center of gravity G of the handheld high-pressure cleaner on the plane Z formed by the triangular structure is located on the vertical line, or the projection G' is located in a range of dimensions deviating to the left or right from the vertical line that is not greater than half the size of the line segment VW formed by connecting the second and third support points, so that the first and second battery packs are installed to the corresponding battery pack mounting parts.

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