Handheld high-pressure cleaner

Abstract

The application relates to a handheld high-pressure cleaner, which comprises: a shell, a battery pack mounting part mounted on or integrally formed on the shell; a functional part comprising a motor arranged in the main body part and a pump driven by the motor to externally convey a liquid flow; the battery pack mounting part comprises a first battery pack mounting part and a second battery pack mounting part, the first battery pack mounting part and the second battery pack mounting part are separately arranged on the left and right sides of the shell, and the maximum distance w2 of the outermost edges of the first battery pack mounting part and the second battery pack mounting part in the left-right direction is not greater than the maximum width w1 of the main body part in the left-right direction. The application has the beneficial effects that the high-pressure cleaner adopts double battery packs for power supply, the cleaning capacity is improved, and the high-pressure cleaner is compactly arranged and small in size.

Description

Technical Field

[0001] This invention relates to a handheld high-pressure washer, and more particularly to a handheld high-pressure washer powered by a battery pack. Background Technology

[0002] With the improvement of living standards, the rapid popularization of automobiles, and people's increasing demands for living environment, the market demand for high-pressure washers is also growing rapidly. Traditional high-pressure washers mainly refer to push-type high-pressure washers. These washers use rollers to support the bulky body, and the spray gun used for operation is connected to the body through a water pipe. Due to their large size and weight, they are not portable and are limited by power and water supply, making it difficult to expand their application scenarios.

[0003] The latest handheld pressure washers on the market utilize battery packs to improve portability, greatly enhancing ease of use and meeting people's needs for cleaning anytime, anywhere. However, current pressure washers have relatively small battery pack capacities, resulting in short continuous working time, low flow rate, limited pressure increase, and unsatisfactory cleaning capabilities. The reality is that users require sufficient cleaning pressure, continuous working time, and a large flow rate while maintaining portability, posing a more challenging requirement for handheld pressure washers.

[0004] The cleaning power and portability of handheld cleaning machines are inherently mutually restrictive. Improving cleaning power requires increasing the power of the motor and water pump, as well as the voltage and current of the power supply, which inevitably leads to a larger size and weight, even making them very bulky. Therefore, finding a balance between cleaning power and portability, and discovering a more competitive solution, is the serious problem that this invention addresses and aims to solve. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the problem to be solved by the present invention is to provide a portable high-pressure cleaner powered by dual battery packs.

[0006] The technical solution adopted by this invention to solve the problems of the prior art is:

[0007] A handheld high-pressure washer, comprising:

[0008] The housing includes a handle for gripping, a main body portion angled to the handle, a liquid inlet portion for liquid flow to enter, and a liquid outlet portion for liquid flow to spray outward;

[0009] A battery pack mounting portion is mounted on or integrally formed on the housing, and the battery pack mounting portion is configured to allow the battery pack to be detachably connected;

[0010] Functional components include a motor disposed within the main body and a pump driven by the motor to deliver liquid flow outward;

[0011] The battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion. The first battery pack mounting portion and the second battery pack mounting portion are separately arranged on the left and right sides of the housing. The maximum distance w2 between the outermost edges of the first battery pack mounting portion and the second battery pack mounting portion in the left and right direction is not greater than the maximum width w1 of the main body portion in the left and right direction.

[0012] In one preferred embodiment, both the first and second battery pack mounting portions are provided with openings for sliding attachment of the respective battery packs, and the openings are arranged facing downwards.

[0013] In one preferred embodiment, both the first and second battery pack mounting portions are provided with two parallel mounting rails, and the corresponding battery packs are slidably attached to the first and second battery pack mounting portions from the opening along the mounting rails in an upward manner in the extension direction of the mounting rails.

[0014] In one preferred embodiment, the handle includes a grip, and the extension direction of each of the mounting rails is substantially parallel to the extension direction of the grip.

[0015] In one preferred embodiment, the main body has a dividing surface, and the main body is arranged approximately symmetrically with respect to the dividing surface. The first battery pack mounting portion and the second battery pack mounting portion are symmetrical about the dividing surface.

[0016] In one preferred embodiment, the center of gravity of the handheld high-pressure washer is located on the left and right sides of the split surface within a range of 1-1.5 times the width of the handle grip.

[0017] In one preferred embodiment, the battery pack includes a first battery pack adapted to be connected to the first battery pack mounting portion and a second battery pack adapted to be connected to the second battery pack mounting portion. Specifically, the first and second battery packs are a set of battery packs of the same specifications, and the set of battery packs can share power to the motor.

[0018] In one preferred embodiment, when the first and second battery packs are respectively installed on the first and second battery pack mounting parts, the handheld high-pressure washer can be stably supported on a horizontal plane with the lower ends of the first and second battery packs and the liquid outlet as fulcrums.

[0019] In one preferred embodiment, when the first and second battery packs are respectively installed on the first and second battery pack mounting parts, the width of the handheld high-pressure washer increased in the left or right direction is 17mm-47mm.

[0020] In one preferred embodiment, when the first and second battery packs are respectively installed on the first and second battery pack mounting portions, the ratio of the maximum width w3 of the first and second battery packs in the left-right direction to the maximum width w1 of the main body in the left-right direction is in the range of 1.2 to 2.

[0021] In one preferred embodiment, the main body and the handle cooperate to form an enclosed space, and the first and second battery pack mounting parts are both located within the enclosed space.

[0022] In one preferred embodiment, the first and second battery pack mounting portions are located between the handle and the liquid inlet portion in the front-rear direction.

[0023] In one preferred embodiment, the first battery pack mounting portion is provided with a first support portion, the second battery pack mounting portion includes a second support portion, the first support portion and the second support portion are joined together to form a foot portion, the foot portion includes a hollow mounting cavity for mounting control components.

[0024] The present invention also provides a handheld high-pressure washer, comprising:

[0025] The housing includes a handle for gripping, a main body portion angled to the handle, a liquid inlet portion for liquid flow to enter, and a liquid outlet portion for liquid flow to spray outward;

[0026] The battery pack mounting section is mounted on or integrally formed onto the housing.

[0027] A battery pack, configured to be detachably connected to the battery pack mounting portion;

[0028] Functional components include a motor disposed within the main body and a pump driven by the motor to deliver liquid flow outward;

[0029] The battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion. The battery pack includes a first battery pack adapted to be connected to the first battery pack mounting portion and a second battery pack adapted to be connected to the second battery pack mounting portion. The first battery pack mounting portion and the second battery pack mounting portion are separately arranged on the left and right sides of the housing. The maximum distance w2 between the outermost edges of the first battery pack mounting portion and the second battery pack mounting portion in the left-right direction is not greater than the maximum width w1 of the main body portion in the left-right direction.

[0030] Compared with the prior art, the beneficial effects of the present invention are: to improve the cleaning ability of handheld high-pressure cleaners, while ensuring portability and compatibility. Attached Figure Description

[0031] The objectives, technical solutions, and beneficial effects of the present invention described above can be achieved through the following figures:

[0032] Figure 1 This is a perspective view of a high-pressure cleaner provided in an embodiment of the present invention.

[0033] Figure 2 yes Figure 1 The image shows the front view of a high-pressure washer.

[0034] Figure 3(a) is a right-hand view of the high-pressure washer shown in Figure 1.

[0035] Figure 3(b) is a left view of the high-pressure washer shown in Figure 1.

[0036] Figure 4 It is a three-dimensional view of the high-pressure washer shown in Figure 1, which is stably placed on a horizontal surface in a standing position.

[0037] Figure 5 yes Figure 4 The image shows the front view and corresponding top view of the high-pressure washer.

[0038] Figure 6 This is the right view of the high-pressure washer shown in Figure 4. Detailed Implementation

[0039] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] like Figures 1 to 3(b) The diagram shows a handheld high-pressure washer 10 according to an embodiment of the present invention. In this embodiment, the high-pressure washer 10 includes a housing 100, which is generally pistol-shaped and has a handle 101 for gripping and a main body 108 for storing functional components. The handle 101 is angled to the main body 108, and the main body 108 houses functional components, specifically including a motor (not shown) and a pump (not shown) driven by the motor. The housing 100 also has a liquid inlet 106 and a liquid outlet 112. When the high-pressure washer is started, the motor drives the pump to operate, the pump draws water in from the liquid inlet 106, pressurizes it inside the pump, and then discharges it from the liquid outlet 112, thereby acting on the surface of the object to clean it.

[0043] In this disclosure embodiment, for ease of understanding, Figure 2 The right side is the front (i.e., the direction of the water jet is forward), and the left side is the rear. The top of the drawing is defined as "upper," and the bottom of the drawing is defined as "lower." As shown in Figure 3(b), viewed from the rear (i.e., from the handle side towards the water jet direction), the left side of the drawing is defined as the left side of the handheld high-pressure washer, and the right side of the drawing is defined as the right side of the handheld high-pressure washer. The above definitions are for illustrative purposes only and should not be construed as limiting the embodiments of this disclosure.

[0044] In this embodiment, a start switch 105, specifically a trigger, is provided near the handle 101 to trigger the connection between the external water source and the pump and to trigger the motor to rotate, thereby starting the high-pressure washer. Specifically, the inlet section 106 of the high-pressure washer is connected to the pump, and a control valve is provided between the inlet section 106 and the pump. The start switch 105 can open the control valve to connect the inlet section 106 to the pump, so that water can enter the pump under the pump's suction. Of course, in other embodiments, the control valve may not be provided, and the start switch 105 may only be used to trigger the rotation of the motor, or the start switch 105 may be able to independently control the connection between the external water source and the inlet section 106 and the outlet section 112 without starting the motor. This allows for the selection of only opening the water path without starting the motor when a pressurized water source is available, thus saving energy.

[0045] For portability, the pressure washer 10 does not include a water tank. Instead, a water hose is connected to the inlet section 106, which in turn connects to an external water source. Thus, with the hose connected to the inlet section 106, during home activities, users can simply connect the end of the hose to a faucet or place it in an external water source such as a swimming pool, pond, or bucket, allowing them to hold the pressure washer and move freely within the hose's length to perform water spraying cleaning. During outdoor activities, users can simply stop wherever there is water, place the end of the hose into the external water source, and begin water spraying cleaning. The pump draws water from the external water source into the pressure washer and sprays it directly out through the outlet section 112.

[0046] The handheld high-pressure washer 10 also includes battery pack mounting portions (102, 104), which are mounted on or integrally formed onto the housing 100. The housing 100 is formed by a first half-shell and a second half-shell that are interlocked. Specifically, the battery pack mounting portions include a first battery pack mounting portion 102 and a second battery pack mounting portion 104, which are separately disposed on the left and right sides of the housing 100. Specifically, the first battery pack mounting portion 102 is disposed on the first half-shell, and the second battery pack mounting portion 104 is disposed on the second half-shell.

[0047] The handheld high-pressure washer of this invention is powered by a DC power supply. Specifically, the DC power supply is a rechargeable battery pack. The battery pack is detachably mounted on the battery pack mounting parts (102, 104) to supply power to the motor. Specifically, one battery pack can be detachably mounted on each of the first battery pack mounting parts 102 and the second battery pack mounting parts 104, with the corresponding battery packs slidably attached to their respective battery pack mounting parts (102, 104). The provision of the first and second battery pack mounting parts (102, 104) allows the handheld high-pressure washer 10 to be powered by two battery packs, expanding the energy reserve of the handheld high-pressure washer. This extends the continuous working time of the handheld high-pressure washer on a single charge and increases the spray pressure and / or flow rate, thereby improving work efficiency. By rationally configuring the voltage and capacity parameters of the battery packs, the working time and cleaning capacity of the handheld high-pressure washer can meet the user's needs.

[0048] Please refer to Figures 3(a), 3(b), and... Figure 4 The two battery packs are defined as a first battery pack 109 and a second battery pack 109', respectively. The first battery pack 109 is adapted to be connected to a first battery pack mounting portion, and the second battery pack 109' is adapted to be connected to a second battery pack mounting portion. Preferably, the first battery pack 109 and the second battery pack 109' are a set of battery packs of the same specifications, and are detachably installed to the first and second battery pack mounting portions (102, 104), respectively. It can be understood that since the first and second battery packs are a set of battery packs of the same specifications, the first battery pack can also be installed on the second battery pack mounting portion, and the second battery pack can also be installed on the first battery pack mounting portion.

[0049] In the embodiments of this disclosure, the battery pack is a detachable rechargeable lithium battery pack. The two battery packs are of identical specifications and are compatible with various types of DC tools, including DC hair dryers, lawn mowers, chainsaws, pruning shears, drills, hammer drills, and circular saws. For example, in this embodiment, a user can even purchase only the main unit of the high-pressure washer and adapt it to the battery packs of other existing tools (such as hair dryers and lawn mowers), truly achieving energy sharing and promoting the versatility of the battery pack platform. It should be noted that the battery pack may not be a lithium battery, but rather a nickel-metal hydride battery or a nickel-cadmium battery. Furthermore, the configuration of two battery packs increases the energy reserve of the high-pressure washer, thereby ensuring the cleaning performance after a single charge. Simultaneously, since using two battery packs achieves the function of a large-capacity battery pack without requiring the redesign of a large-capacity battery pack to match the high-pressure washer, this invention achieves high-energy power supply for the high-pressure washer without changing the existing battery pack platform used by the tool, thereby improving cleaning capabilities.

[0050] In the embodiments described in this invention, the rated voltage of each battery pack is 18V to 56V, and the rated capacity ranges from 1.5Ah to 5Ah. Preferably, each battery pack is configured with a rated voltage of 18V and a rated capacity of 2Ah. Of course, in other possible embodiments, depending on the different cleaning performance requirements of the high-pressure washer, the rated voltage of each battery pack may also be 36V or 42V, and the rated capacity may also be 1.5Ah or 4Ah. In this case, due to the different configurations of the battery packs, the weight of the battery packs will be slightly adjusted.

[0051] Furthermore, in this invention, the first and second battery packs (109, 109') are configured to be able to be attached to or detached from the battery pack mounting portion by sliding. The sliding attachment of the battery pack and the battery pack mounting portion will be described in detail below. Since the first and second battery pack mounting portions (102, 104) have the same structure in this embodiment, and the two battery packs also have the same structure, for the sake of brevity, only one battery pack and one battery pack mounting portion will be described in detail below.

[0052] Both the first and second battery packs (109, 109') include a battery pack housing and battery pack terminals disposed within the battery pack housing, wherein battery cell units are housed within the battery pack housing. The battery pack housing includes an upper housing and a lower housing. The upper housing includes an upper surface, a boss protruding upward from the upper surface, and a pair of opposing attachment rails. The boss includes a top surface, a pair of side surfaces connecting the upper surface and the top surface, and a front end face. The pair of attachment rails are parallel to each other and extend longitudinally along the outer surface of the battery pack, and are respectively formed on the left and right sides of the boss. A locking device is disposed on the battery pack housing. The locking device is movable relative to the battery pack housing to attach or detach the battery pack from the battery pack mounting portion. Specifically, the locking device includes an operating part and a latching part. The operating part is specifically a button. The button can drive the latching part to move up and down relative to the battery pack housing to allow the battery pack to be operably removed from the battery pack mounting portion. Furthermore, an elastic device is provided between the bottom surface of the locking device and the outer surface of the upper housing. Preferably, the elastic device is a spring. The outer surface of the upper housing is provided with a mounting groove, and the aforementioned spring is at least partially confined within the mounting groove. When it is necessary to remove the battery pack from the battery pack mounting part, pressing the button causes the button to move downwards and disengage from the battery pack mounting part. At this time, the spring, due to the pressure from the button, provides an upward restoring force to the button, which is used to return the locking device to its original height after being pressed.

[0053] Please refer to Figure 1 and Figure 2 Both the first and second battery pack mounting portions (102, 104) are provided with openings for sliding attachment of the corresponding battery packs (109, 109'), and the openings are arranged downwards. The first battery pack mounting portion 102 is used as an example for specific description below. The second battery pack mounting portion 104 has the same structure as the first battery pack mounting portion 102, and will not be described in detail here.

[0054] Please refer to Figure 2 The first battery pack mounting portion 102 includes an opening 1028 for sliding attachment of a first battery pack 109. The opening 1028 faces downward, and the first battery pack 109 is attached to the battery pack mounting portion 102 in an upward attachment direction. Specifically, the battery pack mounting portion 102 includes a bottom wall 1020, a pair of opposing side walls 1021 extending upward from the bottom wall, and an end wall 1023. The pair of side walls 1021, the end wall 1023, and the bottom wall 1020 define a battery pack receiving chamber 1025. The opening 1028 is located below the battery pack receiving chamber 1025, on the opposite side of the end wall 1023.

[0055] It should be noted that "opening downwards" can mean the opening is directly downwards or diagonally downwards, including the lower left, lower right, lower front, or lower back. Here, "the battery pack is attached to the battery pack mounting part in an upward attachment direction" can be understood as from the lower front to the upper back, or from directly downwards vertically upwards, or from the lower back to the upper front.

[0056] Therefore, in this embodiment, the attachment direction of the first battery pack 109 and the second battery pack 109' to the battery pack mounting portions 102 and 104 is designed such that the first battery pack 109 and the second battery pack 109' can be attached to the corresponding battery pack mounting portions 102 and 104 by sliding from bottom to top. The opening 1028 of the battery pack receiving chamber 1025 for the sliding attachment of the first battery pack 109 is downward open (e.g., ...). Figure 1 and Figure 2 There are no other components obstructing or interfering with this design. This structural design allows for a thinner space between the two battery pack mounting sections 102 and 104, effectively reducing the overall increase in width after battery pack installation.

[0057] It should be noted that "from bottom to top" here can be understood as tilting upwards from the lower rear side, vertically upwards directly below, or tilting upwards from the lower front side. Preferably, the first battery pack 109 and the second battery pack 109' slide upwards from the lower rear side to attach to the corresponding battery pack mounting portions 102, 104 (e.g., ...). Figure 4 (As shown).

[0058] In this embodiment, the sliding attachment directions of the first battery pack 109 and the second battery pack 109' are parallel, and both are parallel to the length extension direction of the handle 101. That is, the first battery pack mounting part 102 and the second battery pack mounting part 104 are configured such that the sliding attachment direction of the corresponding battery pack is the same as the length extension direction of the handle. This arrangement makes it easier for the two battery packs to be inserted in the grip direction, helps the operator apply a force that is balanced with the loading and unloading of the battery packs, and results in a harmonious and aesthetically pleasing overall machine structure.

[0059] The battery pack housing chamber 1025 contains an electrode holder 1022 connected to the battery pack mounting portion. Specifically, the electrode holder 1022 is detachably connected to the battery pack mounting portion 102. A slot is formed on the bottom wall 1020, and a locking device provided on the battery pack can engage with this slot, while simultaneously ensuring that the battery pack's locking device can freely disengage from the slot. The battery pack mounting portion 102 also has two mounting rails, which are arranged parallel to each other on both sides of the side wall 1021. A pair of attachment rails of the battery pack can slide along their respective mounting rails and engage with the slots of the battery pack mounting portion via the battery pack's locking device, thereby enabling each battery pack to be electrically connected to its corresponding battery pack mounting portion. Specifically, the mounting rails are battery track grooves, and the battery pack's attachment rails can cooperate with the battery track grooves to allow the battery pack to slide on the battery pack mounting interface. In this invention, the battery pack is installed in the battery pack mounting part, and the bottom wall of the battery pack mounting part is opposite to the top surface of the boss of the battery pack.

[0060] The handle 101 includes a grip for user operation, and the extension direction of each mounting rail is substantially parallel to the extension direction of the grip.

[0061] To ensure the high-pressure washer remains balanced in the left-right direction even with two battery packs installed, thus maintaining optimal tool operability, in this embodiment, the two battery packs are installed in the width direction (i.e., the left-right direction) of the housing. Preferably, the first battery pack mounting portion 102 and the second battery pack mounting portion 104 are symmetrically arranged.

[0062] In this embodiment, the main body 108 has a dividing surface C, and the main body 108 is arranged approximately symmetrically with respect to the dividing surface C. The central axis of the main body 108 is located on the dividing surface C. Two battery pack mounting parts 102, 104 are arranged opposite to each other on the left and right sides of the dividing surface C, that is, the two battery pack mounting parts are separately arranged on the left and right sides of the dividing surface C of the main body 108. Specifically, the first and second battery pack mounting parts 102, 104 are symmetrical about the dividing surface C. The two battery pack mounting parts 102, 104 are arranged side by side on the left and right sides of the main body housing 108 in the left-right direction. In addition, the insertion directions of the first and second battery packs 109, 109' can be the same. This design ensures the machine is relatively balanced in the left-right direction, guaranteeing operational reliability, and allows the first and second battery packs 109, 109' to be installed and removed in one direction at a time, facilitating user assembly and disassembly.

[0063] In this embodiment, the shell 100 adopts a left-right Haver structure, which is formed by connecting a first half-shell and a second half-shell. Specifically, as shown in Figure 3(b), the shell 100 has a first half-shell and a second half-shell arranged approximately symmetrically about the dividing plane C. With the dividing plane C as the boundary, the right side of the dividing plane C is the first half-shell, and the left side of the dividing plane C is the second half-shell. The dividing plane C is perpendicular to the left-right direction of the shell. It should be noted that in this embodiment, the dividing plane C can be understood as the plane extended by the seam where the first half-shell and the second half-shell meet.

[0064] The first and second battery pack mounting portions (102, 104) are located within the enclosed space formed by the main body 108 and the handle 101. Specifically, the first battery pack mounting portion 102 and the second battery pack mounting portion 104 are located below the main body 108 and in front of the handle 101. This arrangement eliminates the need for additional space to accommodate the battery packs in the vertical or horizontal directions, ensuring a compact overall structure and small size.

[0065] Preferably, the first battery pack mounting part 102 and the second battery pack mounting part 104 are symmetrically arranged about the dividing plane C. This symmetrical arrangement ensures that when the two battery packs are mounted on the high-pressure washer, the two centers of gravity of the battery packs are equidistant from the handle grip, resulting in a symmetrical structure and more comfortable grip. When both battery packs are mounted on the handheld high-pressure washer, the center of gravity of the handheld high-pressure washer is located within a range of 1-1.5 times the width of the handle grip on both sides of the dividing plane C. Furthermore, the insertion direction of each battery pack can be the same. This design ensures the machine is relatively balanced in the left-right direction, guaranteeing operational reliability, and allows for easy installation and removal of the two battery packs in one direction at a time, facilitating user assembly and disassembly.

[0066] Referring to Figure 3(a), the first battery pack mounting portion 102 includes a first support portion 1021, and the second battery pack mounting portion 104 includes a second support portion 1041. The bottom walls of the two battery pack mounting portions are respectively formed on the corresponding first and second support portions 1021 and 1041. The first support portion 1021 and the second support portion 1041 are symmetrically arranged about the dividing plane C. The first support portion 1021 and the second support portion 1041 are joined together to form a foot portion, which includes a hollow mounting cavity for mounting control components.

[0067] In this embodiment, to minimize the maximization of the width of the handheld high-pressure washer 100, the foot portion is relatively thin. Specifically, the width w4 of the foot portion in the left-right direction is no greater than the width w5 of the water outlet pipe 112 in the left-right direction. With this design, even when the handheld high-pressure washer 100 is connected to the first and second battery packs 109, 109', the entire machine remains compact in the left-right direction.

[0068] Please continue to refer to FIGS. 3(a) and 3(b). The width of the main body portion in the left-right direction is w1, and the maximum distance between the two battery pack mounting portions in the left-right direction is w2. In order to suppress the maximization of the high-pressure cleaner in the width direction, in the present invention, the maximum distance w2 between the two battery pack mounting portions in the left-right direction is less than the width w1 of the main body portion in the left-right direction, that is, w2 < w1. The two battery pack mounting portions are arranged side by side on the left and right sides of the middle parting plane C such that the maximum distance w2 between the outermost edges of the two battery pack mounting portions in the left-right direction is less than the width w1 of the main body portion of the high-pressure cleaner. That is, as described above, the maximum distance w2 between the two battery pack mounting portions 102 and 104 in the left-right direction is not greater than the width w1 of the main body portion 108 in the left-right direction.

[0069] For the convenience of description, it is defined that each battery pack mounting portion has a mounting surface for a battery pack. Specifically, the first battery pack mounting portion 102 includes a first battery pack mounting surface, and the second battery pack mounting portion 104 includes a second battery pack mounting surface. A pair of side walls 1021 protrude upward from the bottom wall. The upward protruding end of one of the side walls 1021 forms an upper end line, and the upper end lines of the two side walls 1021 are parallel to each other. The plane determined by the two parallel upper end lines is defined as the battery pack mounting surface. Alternatively, the battery pack mounting surface can also be understood as, in FIGS. 3(a), 3(b) and Figure 4 in which, when observing the hand-held high-pressure cleaner from the rear side or the front side, the plane where the outermost edge on the left side of the first battery pack mounting portion is located, and the plane where the outermost edge on the right side of the second battery pack mounting portion is located.

[0070] In this embodiment, the first battery pack mounting surface is parallel to the second battery pack mounting surface. Preferably, the first battery pack mounting surface and the second battery pack mounting surface are respectively parallel to the middle parting plane C and are symmetric about the middle parting plane C.

[0071] It should be noted that when the first and second battery pack mounting surfaces are both parallel to the middle parting plane C, the maximum distance here is the linear distance between the two battery pack mounting surfaces in the left-right direction; when the two battery pack mounting surfaces are inclined with respect to the middle parting plane C, in other words, the two battery pack mounting surfaces extend outward relative to the middle parting plane C, the maximum distance here should be understood as the linear distance between the outermost expanded edges of the two battery pack mounting surfaces.

[0072] Please continue to refer to Figure 4In this embodiment, the high-pressure washer also includes a power display unit 107 disposed on the housing 100. The power display unit 107 is located on the side wall near the handle 101, sandwiched between the two battery pack mounting portions. More specifically, the side wall is connected to the lower end of the handle by a reinforcing rib, forming a D-shape with the handle, reinforcing rib, and side wall, thus enhancing the mechanical structure of the housing. The power display unit is positioned close to the handle grip portion, facilitating convenient operation of the power display unit 107 while holding the high-pressure washer. Furthermore, during normal operation, there is no obstruction between the operator's line of sight and the power display unit 107, making it easier for the operator to observe the battery pack's power status. Preferably, the power display unit 107 includes a display operation switch. The power display unit only displays the remaining / used power when the user operates the display switch, avoiding energy waste from real-time power display. The display is only activated when needed, making the high-pressure washer more energy-efficient.

[0073] To improve the cleaning performance of the high-pressure washer, in this invention, the water pump can be a three-plunger pump. The three-plunger pump includes a pump body and three plungers disposed within the pump body, which reciprocate with a 120-degree phase difference between each other. Specifically, in this embodiment, since a relatively high-power motor is required to drive the three-plunger pump for continuous water pumping, the rated power of the motor is 200 watts to 500 watts, resulting in a slightly increased motor weight, 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 overall weight of the high-pressure washer ranges from 3 kg to 5 kg. In this embodiment, within this overall weight range, the handheld high-pressure washer outputs a working water pressure of 2 MPa to 10 MPa and an output working water flow rate of 3 L / min to 8 L / min. In this embodiment, the high-pressure washer outputs a working water pressure of 3 MPa and an output working water flow rate of 3.3 L / min. At this time, when the high-pressure washer is turned on, the water jet from the outlet will continuously spray out for 10–120 minutes. Preferably, the motor has a rated power of 360 watts, and the weight of the functional components is 1300 grams. Each battery pack has a rated voltage of 18V and a rated capacity of 2Ah. The two battery packs are connected in series and discharge together to provide drive power for the motor. The total weight of the two battery packs is less than or equal to 750 grams, and the total weight of the high-pressure washer is 3.1 kg.

[0074] Furthermore, to balance cleaning performance with the operator's need for portability in high-pressure washers, this invention utilizes a high-speed small motor shaft to drive a three-plunger pump, optimizing the weight of the high-pressure washer and improving portability. The motor's rotational motion is converted into the reciprocating motion of the plungers through a transmission mechanism. In a three-plunger pump, pumping efficiency is significantly improved. However, the reciprocating motion of the three plungers results in greater sliding resistance between the plungers and the pump body, increasing energy consumption and requiring a relatively large rated power motor to overcome this sliding resistance. Compared to directly using a large, heavy, low-speed motor, the embodiments of this disclosure significantly reduce the motor's weight and size through a reasonable combination of a reduction mechanism and a high-speed small motor. Specifically, the transmission mechanism includes a gear reduction mechanism and a swashplate mechanism disposed between the gear reduction mechanism and the pump body. The motor's no-load speed is greater than or equal to 17500 rpm, and the no-load output speed of the reduction structure of the transmission mechanism is less than or equal to 300 rpm, 2500 rpm, 2200 rpm, 2100 rpm, or 2000 rpm. The swashplate mechanism drives the fixed connection structure, causing the plunger to reciprocate within the pump body. This design reduces the overall weight of the machine by replacing the heavier, low-speed, large motor with a lighter, high-speed small motor and gear reduction mechanism.

[0075] The high-pressure washer of this invention is a handheld high-pressure washer. For portability, the handheld high-pressure washer itself does not have a water tank for storing water. Instead, it connects to a water pipe (not shown) via an inlet on the main body. The water pipe (not shown) is then connected to an external water source, which can be a pond, tap water, or a container similar to a water tank or cylinder. The handheld high-pressure washer is primarily used for household cleaning and outdoor activities. To improve cleaning performance, the high-pressure washer provided by this invention uses a high-speed motor to drive a three-plunger pump, and a dual-battery pack powers the motor. The entire machine weighs approximately 3kg-4kg. Please refer to [reference needed]. Figure 4 When a set of battery packs (109, 109') are installed on the two battery pack mounting sections (102, 104), the lower end and the liquid outlet of each battery pack serve as three support points. The handheld high-pressure washer can be stably supported on these three support points. In other words, when a set of battery packs is mounted on the battery pack mounting sections, the handheld high-pressure washer can be stably supported on a flat surface using the lower ends of the two battery packs (109, 109') and the liquid outlet as fulcrums. This configuration, using the lower ends of the two battery packs (109, 109') as two support points and the liquid outlet as a third support point, allows the high-pressure washer to be placed upright on the ground or a table, reducing the storage space occupied by the high-pressure washer and making its storage and placement stable, convenient, and aesthetically pleasing.

[0076] Furthermore, when placing the handheld high-pressure washer 10, at least two support points need to be selected to contact the ground or workbench (support plane), and these two support points should be distributed on the front and back sides. The handheld high-pressure washer 10 can be stably placed on the ground or workbench by the cooperation of these front and back support points. The front end of the water outlet pipe 13 can be used as the first support point U. Regarding the selection of the rear support point, considering that in this embodiment the foot portion 1520 is relatively thin, and the positions of the weight motor 3, water pump 4, and two battery packs 200 are all close to the foot portion 1520, the thin foot portion 1520 cannot cooperate with the first support point U to ensure stable placement of the handheld high-pressure washer.

[0077] In this embodiment, the clever arrangement of the two battery packs allows the handheld high-pressure washer 100 to be stably placed even when connected to the battery pack 200. Furthermore, the inventors have discovered a correlation between the position of the overall center of gravity G (where "overall machine" should be understood as the handheld high-pressure washer 100 connected to two battery packs 200) and whether the handheld high-pressure washer 100 connected to the battery pack 200 can be stably placed on the ground or a workbench, as detailed below.

[0078] Specifically, when the high-pressure washer is stably supported on a plane with the lower ends of the two battery packs (109, 109') and the liquid outlet as fulcrums, the projection of the high-pressure washer's center of gravity onto the supporting plane falls within the triangular area enclosed by the triangle formed by the three support points. In this embodiment, the triangle formed by the three support points is specifically an isosceles triangle with the liquid outlet as its vertex. The projection of the center of gravity roughly falls on the altitude of the isosceles triangle, with an error of approximately ±5mm. Furthermore, the distance from the liquid outlet to the projection of the center of gravity is greater than the distance from the projection of the center of gravity to the line connecting the two support points of the battery pack; that is, the center of gravity is closer to the base of the isosceles triangle. This setting of the center of gravity makes the support structure of the high-pressure washer, using the lower ends of the two battery packs (109, 109') as two support points and the liquid outlet as the third support point, more stable.

[0079] When placing the handheld high-pressure washer 100, at least two support points need to be selected to contact the ground or workbench. These two support points should be distributed on the front and back sides, respectively. The coordinated operation of these front and back support points ensures the handheld high-pressure washer 100 is stably placed on the ground or workbench. The front end of the water outlet pipe 112 can be used as the first support point U. Regarding the selection of the rear support point, considering that in this embodiment the foot is relatively thin, and the positions of the weight motor 3, water pump 4, and two battery packs are all close to the foot, the thin foot cannot mate with the first support point U to ensure stable placement of the handheld high-pressure washer.

[0080] In this embodiment, the arrangement of the two battery packs is cleverly utilized to achieve stable placement of the handheld high-pressure washer 100 even when connected to the battery packs. Furthermore, the inventors have discovered a correlation between the position of the overall center of gravity G (where "overall machine" should be understood as the handheld high-pressure washer 100 connected to two battery packs 109, 109') and whether the handheld high-pressure washer 100 connected to the battery packs can be stably placed on the ground or a workbench, as detailed below.

[0081] Since both the first battery pack 109 and the second battery pack 109' are positioned rearwards, and are symmetrically distributed on both sides of the dividing surface C, the two battery packs 109 and 109' can be installed onto their respective battery pack mounting portions 102 and 104. The portion of the first battery pack 109 in contact with the ground or workbench surface is used as the second support point V, and the portion of the second battery pack 109' in contact with the ground or workbench surface is used as the third support point W. Specifically, as follows... Figure 4 As shown, the first support point U, the second support point V, and the third support point W form a triangle by connecting their ends. More specifically, the first support point U is located on the extension surface of the bisecting plane C, and the second and third support points V and W are symmetrical about the bisecting plane C. Therefore, the triangle formed by the three support points is an isosceles triangle. When the center of gravity G of the entire machine is located within the triangle formed by the three support points, the entire machine can be placed stably; however, when the center of gravity G of the entire machine is not within the space enclosed by the three support points, the entire machine cannot be placed stably.

[0082] One embodiment of the second support point V and the third support point W is that both the second support point V and the third support point W are straight lines. In other words, the edge of the first battery pack that contacts the ground or workbench is a straight line; the edge of the second battery pack that contacts the ground or workbench is also a straight line. In this case, the distance between the leftmost edge of the second support point and the rightmost edge of the third support point W is the length of the base VW of the triangle.

[0083] Another implementation of the second support point V and the third support point W is that both the second support point V and the third support point W are fixed points. In other words, the edge of the first battery pack that contacts the ground or workbench is curved; the edge of the second battery pack that contacts the ground or workbench is also curved. In this case, the distance between the two fixed points in the left-right direction is... Figure 5 The length of the base VW of the triangle shown.

[0084] Of course, the support points for the two battery packs in contact with the ground or work surface can also be in other forms.

[0085] To ensure stable support of the entire machine by the three support points, preferably, the maximum length VW of the second and third support points in the left-right direction is greater than the width of the water outlet pipe 112.

[0086] As described above, in this embodiment, the attachment direction of the battery packs 109 and 109' to the battery pack mounting portions 102 and 104 is designed such that the first battery pack 109 and the second battery pack 109' slide upwards from the rear lower side to attach to the corresponding battery pack mounting portions 102 and 104. Therefore, as Figure 5 As shown, the second support point V can be determined to be located at the lower left end of the first battery pack 109, and the third support point W can be determined to be located at the lower right end of the second battery pack 109'. Figure 5 The second support point V is located behind the center of gravity G1 of the first battery pack, and the third support point W is located behind the center of gravity G2 of the second battery pack. As described above, both the center of gravity G1 and the center of gravity G2 of the first battery pack are located behind the total weight G of the machine. Therefore, in the front-rear direction, the projection G' of the center of gravity G on the ground or workbench 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 on the ground or workbench can also be located on the line segment formed by connecting the second support point V and the third support point W.

[0087] Furthermore, in this embodiment, the motor weighs approximately 435 grams; the water pump weighs approximately 1 kilogram; and a single battery pack weighs approximately 400 grams. Since the two battery packs are identical, the total weight of the two battery packs is 800 grams. Considering that the center of gravity G of the handheld high-pressure washer 100 is primarily determined by the positions of the motor, the pump, and the two battery packs 109 and 109' mounted on the high-pressure washer 100, and given that both the motor and water pump are located within the main body 108, the combined weight of the motor and water pump is greater than the combined weight of the two battery packs 109 and 109'. Therefore, the overall center of gravity G should be located within the main body 108.

[0088] Furthermore, in order to take into account the small width of the whole machine and the stable support of the three support points, the included angle between the two sides formed by the side UV (one leg of the isosceles triangle) formed by connecting the first support point U and the second support point V and the side UW (the other leg of the isosceles triangle) formed by connecting the first support point U and the third support point W is between 20 degrees and 45 degrees, that is, it can be 30 degrees, 35 degrees, 40 degrees, etc.

[0089] In this embodiment, the main housing 100 has a left-right Haver structure, and the first and second halves of the main housing 100 are not significantly different. The weight difference between the components housed within the main housing and those located in the first and second halves is minimal. Furthermore, the two battery packs 109 and 109' attached to the main housing 1 are arranged left-right and have the same specifications. Therefore, the center of gravity G of the handheld high-pressure washer deviates little from the midpoint C to the left or right. Specifically, the three support points connect to form a triangular plane. In the left-right direction, the center of gravity G of the entire machine is configured such that its projection G' on the triangular plane lies on the perpendicular line to the base VW of the isosceles triangle, or that the projection G' deviates to the left or right of the perpendicular line of the triangle by a dimension less than half the dimension of the base VW. The two battery packs are installed to their respective battery pack mounting parts in such a way that the dimension of the projection G' is less than half the dimension of the base VW. It should be noted that the perpendicular line here refers to the perpendicular line drawn from the first support point U to its opposite side, i.e., the perpendicular line is the height of the base VW. The intersection of the perpendicular line and the base VW is the foot of the perpendicular.

[0090] Preferably, the center of gravity G of the entire unit is configured such that its projection G' on the triangular plane lies on the perpendicular line of the triangle, or the ratio of the dimension of the projection G' offset to the left or right from the perpendicular line of the triangle to the dimension VW of the base of the triangle is 0.55 to 0.9, and the two battery packs are installed to the corresponding battery pack mounting parts. The above ratio range can be 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, etc. Preferably, the above ratio is 0.68. Specifically, in this embodiment, please refer to... Figure 5 A straight line passing through the center of gravity G and extending along the width direction of the shell intersects with straight lines UW and UV, with intersection points O and P respectively. The center of gravity G of the whole machine is configured such that the projection G' on the triangular plane is offset to the left by a dimension not greater than the length of G'P; the center of gravity G of the whole machine is configured such that the projection G' on the triangular plane is offset to the right by a dimension not greater than the length of G'O.

[0091] It should be noted that the distance by which the projection of the overall center of gravity G onto the triangular plane Z deviates to the left or right from the perpendicular line of the triangle must ensure that G' is located within the triangular plane enclosed by the triangle.

[0092] In the embodiment where the three support points form an isosceles triangle, in the front-rear direction, the ratio of the distance between the projection G' of the center of gravity on the triangle plane and the vertical line where the first support point U is located, to the distance between the vertical line where the first support point U is located and 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 follows... Figure 5As shown, the center of gravity G of the entire machine is configured such that its projection G' on the triangular plane Z lies on the perpendicular line of the triangle, or its projection G' is located offset to the left or right from the perpendicular line of the triangle. The above ratio can be in the range of 0.6, 0.65, 0.7, 0.75, etc. Preferably, the above ratio is 0.68.

[0093] With this design, the handheld high-pressure washer can stand stably after installing two battery packs, without tilting to the left or right, or tilting forward or backward.

[0094] like Figure 5 The image shown is a top view of a handheld high-pressure washer 100 with two battery packs 109 and 109' attached. In this embodiment, the distance between the mounting portions of the two battery packs in the width direction (left-right direction) is small. Therefore, even when the handheld high-pressure washer 100 is in the state with the battery packs 109 and 109' attached, the entire machine is very compact in the left-right direction. Specifically, as shown... Figure 6 As shown, the ratio of the width w3 of the first battery pack 109 and the second battery pack 109' in the left-right direction to the width w1 of the main body 108 in the left-right direction ranges from 1.2 to 2; preferably, the ratio ranges from 1.5.

[0095] Please continue to refer to Figure 6 X3 indicates the axis along which the first battery pack 201 is attached to the first battery pack mounting portion 102 by sliding, and this axis passes through the center of gravity G1. X4 indicates the axis along which the second battery pack 202 is attached to the second battery pack mounting portion 104 by sliding, and this axis passes through the center of gravity G2. The axes X3 and X4 are approximately parallel to the extending direction of the central axis of the first handle 14. Furthermore, the axes X3 and X4 are approximately parallel to the midpoint C of the main body portion and are symmetrically arranged relative to the midpoint C of the main body portion 10. In other words, both battery packs 109 and 109' slide from the rear lower side to the front upper side to attach to the corresponding battery pack mounting portions 102 and 104.

[0096] Of course, axes X3 and X4 can also be configured to be non-parallel to the midpoint C of the main body 108. Specifically, the extension direction of axis X3 can intersect the midpoint C to form a first acute angle, and the extension direction of axis X4 can intersect the midpoint C to form a second acute angle, where the first acute angle is equal to the second acute angle. Furthermore, the sum of the first and second acute angles is still an acute angle. In other words, axes X3 and X4 are symmetrically arranged relative to the midpoint C of the main body 10, and the two battery packs 201 and 202 can slide from the lower rear side to the upper front side to attach to the corresponding battery pack mounting portions 102 and 104.

[0097] In this embodiment, the high-pressure washer 100 also includes a control component, specifically a control board. The control board is configured to be electrically connected to the battery pack, the motor, and the start switch 105. The control board has a built-in control program for controlling the power supply to the battery pack, whether the motor rotates, and the change in the motor's rotation speed. In this embodiment, there is a lateral distance between the bottom walls of two adjacent battery pack mounting portions, forming a clamping space between the two bottom walls. The control board is positioned within this clamping space. Specifically, the plane of the control board is parallel to the battery pack mounting plane. The control board's design cleverly utilizes the space between the two battery pack mounting portions without requiring an increase in the housing volume to accommodate it. Furthermore, the control board is clamped between the two battery pack mounting portions, away from the liquid outlet of the washer 100, effectively preventing water splashing onto the control board.

[0098] In this embodiment, when a set of battery packs is respectively assembled on two battery pack mounting parts, the width increase of the handheld high-pressure washer in the left or right direction ranges from 17mm to 47mm. Please refer to the following: Figure 5 When the two battery packs are installed on their respective mounting parts, the thickness of the battery packs increases the width of the high-pressure washer in the left-right direction. The upper surface of the battery pack is in close contact with the bottom wall of the mounting part, and the distance between the lower surface of the battery pack and the dividing surface C is greater than the distance between the left end face of the main body 108 and the dividing surface C. The width of the lower surface of the first battery pack 109 and the lower surface of the second battery pack 109' in the left-right direction is w3, where w3 is greater than w1. Specifically, the ratio of w3 to w2 is in the range of 1.2-2, and w3 is 34-94mm thicker than w2.

[0099] In this embodiment, the lower end of the handle 101 is connected to the battery pack mounting part by a connecting rib, forming a closed D-shape, which makes the shell of the high-pressure washer more mechanically strong and the structure more stable. Specifically, the width of the connecting rib is the same as the width of the handle grip in the left-right direction.

[0100] In this embodiment, the liquid inlet 106 is connected to the main body 108 and is located in front of the battery mounting interfaces 102 and 104. The liquid inlet 106 has a liquid inlet 1061 and is connected to an external pipe through the liquid inlet 1061. When liquid enters the liquid inlet 106 from the pipe, it enters the high-pressure washer 10 from the end connected to the main body 108. Under the pressure of the high-pressure washer 10, it is sprayed out from the high-pressure washer 10 to clean the surface of the object.

[0101] The battery pack mounting sections 102 and 104 are provided with electrode plates for mating with the battery pack. The electrode plates are located above the liquid inlet in the vertical direction and are at a vertical distance h from the liquid inlet. In the high-pressure washer 100 provided in this embodiment, the electrode plates are set on the electrode base 1022 and extend downward along the side wall 1021. The maximum distance between the electrode plates and the central axis of the main body 108 is less than the minimum distance between the liquid inlet 1061 and the central axis of the main body 108. Therefore, when the high-pressure washer 100 is used normally, the position of the liquid inlet 1061 is always lower than the height of the electrode plates. When the liquid inlet 1061 is separated from the pipe carrying liquid, the liquid is less likely to flow from the liquid inlet 1061 into the electrode plates and into the battery pack, thus improving the safety of the high-pressure washer 100.

[0102] Of course, in order to prevent liquid from splashing onto the electrode plate when the liquid inlet is disconnected from the liquid-filled pipe, in other embodiments, the liquid inlet can also be connected to the handle, specifically to the lower end of the handle or the lower end of the battery pack mounting section. In this way, water can easily enter, and the liquid inlet is located at a certain distance below the electrode plate, ensuring that the electrode plate is not easily splashed.

[0103] Furthermore, taking the high-pressure washer 10 as a normal operating state as a reference, the liquid inlet 106 is connected to the main body 108 and is located at the front end of the electrode plate near the liquid outlet 112. That is, the liquid inlet 106 is located at a position closer to the front end of the high-pressure washer 10. In this way, the liquid inlet 1061 is close to the liquid outlet 112, the liquid (water flow) travels a shorter distance, reduces the venting time in the liquid outlet channel, and facilitates rapid liquid outlet.

[0104] Specifically, in this embodiment, the liquid inlet 106 is perpendicular to the main body 108, that is, the liquid inlet 106 is perpendicular to the central axis of the main body 108, and the electrode plate is mounted on the electrode plate interface 1022 in a direction parallel to the gripping part. In this case, there is an angle α between the liquid inlet 106 and the electrode plate, which facilitates the connection of the liquid inlet 106 to an external pipe. Specifically, the angle α between the liquid inlet 106 and the electrode plate 1023 is greater than or equal to 20°. In other embodiments, the electrode plate interface 1022 can also be perpendicular to the main body 108, in which case the liquid inlet 106 and the electrode plate 1023 are parallel.

[0105] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0106] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A handheld high-pressure washer, comprising: The housing includes a handle for gripping, a main body portion angled to the handle, a liquid inlet portion for liquid flow to enter, and a liquid outlet portion for liquid flow to spray outward; A battery pack mounting portion is mounted on or integrally formed on the housing, and the battery pack mounting portion is configured to allow the battery pack to be detachably connected; Functional components include a motor disposed within the main body and a pump driven by the motor to deliver liquid flow outward; Its features are, The battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion. The first battery pack mounting portion and the second battery pack mounting portion are separately arranged on the left and right sides of the housing. The maximum distance w2 between the outermost edges of the first battery pack mounting portion and the second battery pack mounting portion in the left and right direction is not greater than the maximum width w1 of the main body portion in the left and right direction. Both the first battery pack mounting portion and the second battery pack mounting portion are provided with openings for sliding attachment of the corresponding battery packs, and the openings are arranged facing downwards; Both the first battery pack mounting portion and the second battery pack mounting portion are provided with two parallel mounting rails. The corresponding battery pack is slidably attached to the first battery pack mounting portion and the second battery pack mounting portion from the opening along the mounting rails in an upward manner in the extension direction of the mounting rails.

2. The handheld high-pressure washer according to claim 1, characterized in that, The handle includes a grip portion, and the extension direction of each of the mounting rails is substantially parallel to the extension direction of the grip portion.

3. The handheld high-pressure washer according to claim 1, characterized in that, The main body has a dividing surface in the middle, and the main body is arranged approximately symmetrically with respect to the dividing surface. The first battery pack mounting part and the second battery pack mounting part are symmetrical about the dividing surface.

4. The handheld high-pressure washer according to claim 1, characterized in that, The battery pack includes a first battery pack adapted to be connected to the first battery pack mounting portion and a second battery pack adapted to be connected to the second battery pack mounting portion. Specifically, the first battery pack and the second battery pack are a set of battery packs of the same specifications, and the set of battery packs can share power to the motor.

5. The handheld high-pressure washer according to claim 4, characterized in that, When the first battery pack and the second battery pack are respectively installed on the first battery pack mounting part and the second battery pack mounting part, the handheld high-pressure cleaner can be stably supported on a horizontal plane with the lower ends of the first battery pack and the second battery pack and the liquid outlet part as fulcrums.

6. The handheld high-pressure washer according to claim 4, characterized in that, When the first battery pack and the second battery pack are respectively installed on the first battery pack mounting part and the second battery pack mounting part, the width of the handheld high-pressure washer increased in the left or right direction is 17mm-47mm.

7. The handheld high-pressure washer according to claim 4, characterized in that, When the first battery pack and the second battery pack are respectively installed on the first battery pack mounting part and the second battery pack mounting part, the ratio of the maximum width w3 of the first battery pack and the second battery pack in the left-right direction to the maximum width w1 of the main body in the left-right direction is in the range of 1.2 to 2.

8. The handheld high-pressure washer according to claim 1, characterized in that, The main body and the handle work together to form an enclosed space, and the first battery pack and the second battery pack mounting parts are both located within the enclosed space.

9. The handheld high-pressure washer according to claim 1, characterized in that, The first battery pack mounting part and the second battery pack mounting part are located between the handle and the liquid inlet part in the front-back direction.

10. The handheld high-pressure washer according to claim 1, characterized in that, The first battery pack mounting part is provided with a first support part, and the second battery pack mounting part includes a second support part. The first support part and the second support part are joined together to form a foot part. The foot part includes a hollow mounting cavity for mounting control components.

11. A handheld high-pressure washer, comprising: The housing includes a handle for gripping, a main body portion angled to the handle, a liquid inlet portion for liquid flow to enter, and a liquid outlet portion for liquid flow to spray outward; A battery pack mounting portion is mounted on or integrally formed on the housing, and the battery pack mounting portion is configured to allow the battery pack to be detachably connected; Functional components include a motor disposed within the main body and a pump driven by the motor to deliver liquid flow outward; Its features are, The battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, which are separately arranged on the left and right sides of the housing. The maximum distance w2 between the outermost edges of the first battery pack mounting portion and the second battery pack mounting portion in the left-right direction is not greater than the maximum width w1 of the main body in the left-right direction. The battery pack includes a first battery pack adapted to be connected to the first battery pack mounting portion and a second battery pack adapted to be connected to the second battery pack mounting portion. When the first battery pack and the second battery pack are respectively installed on the first battery pack mounting part and the second battery pack mounting part, the handheld high-pressure cleaner can be stably supported on a horizontal plane with the lower ends of the first battery pack and the second battery pack and the liquid outlet part as fulcrums.

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