High pressure cleaning apparatus

Abstract

This application discloses a high-pressure cleaning device, comprising: a housing; a power unit located within the housing, the power unit including a motor; a power supply device including at least one battery pack for powering the motor; a grip for a user to hold and carry the high-pressure cleaning device; a spray gun connected to the power unit for spraying liquid; and, when the high-pressure cleaning device is operating, the maximum pressure of the liquid sprayed from the spray gun is greater than or equal to 1000 PSI; the battery pack is detachably inserted and removed from the housing along a first direction, the first direction forming an angle α with a horizontal or vertical plane greater than or equal to 10° and less than or equal to 30°. By setting the battery pack to be inserted at an angle, the overall size of the device is reduced while effectively preventing the main unit from slipping during insertion, and it is also easier to pick up and put down the battery pack, making insertion and removal less strenuous.

Description

Technical Field

[0001] This application relates to a cleaning device, specifically a high-pressure cleaning device. Background Technology

[0002] A high-pressure washer is a machine that uses a power unit to drive a high-pressure plunger pump to generate high-pressure water, which is then sprayed out through a spray gun to rinse the surface of an object. It can peel off and wash away dirt, thus achieving the purpose of cleaning the surface of an object.

[0003] One type of cleaning equipment in the related technology uses a battery pack for power supply. The battery pack is inserted and removed in a horizontal or vertical direction, which occupies a large space, making the whole machine relatively large and causing difficulties in handling and storage.

[0004] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0005] One object of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, one object of this application is to provide a high-pressure cleaning device.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A high-pressure cleaning device includes: a housing; a power unit located within the housing, the power unit including a motor; a power supply device including at least one battery pack for powering the motor; a grip for a user to hold and carry the high-pressure cleaning device; a spray gun connected to the power unit for spraying liquid; and when the high-pressure cleaning device is operating, the maximum pressure of the liquid sprayed from the spray gun is greater than or equal to 1000 PSI; the battery pack is detachably inserted and removed from the housing along a first direction, the first direction being at an angle α greater than or equal to 10° and less than or equal to 30° with respect to a horizontal or vertical plane.

[0008] In some embodiments, the angle α between the first direction and the horizontal or vertical plane is greater than or equal to 15° and less than or equal to 20°.

[0009] In some embodiments, the battery pack is detachably inserted into the housing. After the battery pack is inserted, the center of gravity of the high-pressure cleaning device is the first center of gravity. After the battery pack is removed, the center of gravity of the high-pressure cleaning device is the second center of gravity. The distance between the first center of gravity and the second center of gravity is less than or equal to 2 cm.

[0010] In some embodiments, the maximum value of the product of the pressure and flow rate of the liquid ejected from the spray gun is greater than or equal to 2000 PSI * GPM.

[0011] In some embodiments, the rated voltage of the battery pack is greater than or equal to 20V.

[0012] In some embodiments, the grip is disposed on the top of the housing and extends along the long side of the top of the housing, extending from one end of the housing to the other end of the housing.

[0013] In some embodiments, the grip is disposed on the top of the housing, and the distance from the grip to the bottom of the high-pressure cleaning device along the height direction is less than or equal to 40 cm.

[0014] In some embodiments, the pressure of the liquid ejected from the spray gun is 1000 PSI-2000 PSI.

[0015] In some embodiments, in the height direction, the distance from the gripping center of the grip to the center of gravity of the high-pressure cleaning device is less than or equal to 30 cm.

[0016] A high-pressure cleaning device includes: a housing having a top; a power unit located within the housing, the power unit including a motor and a booster pump driven by the motor; a power supply unit including at least one battery pack for powering the motor; a spray gun connected to the power unit for spraying liquid; and, when the high-pressure cleaning device is operating, the maximum value of the product of the pressure and flow rate of the liquid sprayed from the spray gun is greater than or equal to 2000 PSI*GPM; further comprising: a grip for a user to hold and carry the high-pressure cleaning device, the grip being disposed on the top of the housing and extending from one end of the housing to the other end of the housing; and a battery pack removably inserted and removed from the housing along a first direction, the first direction being at an angle α less than or equal to 30° with a horizontal or vertical plane.

[0017] The advantages of this application are: the maximum value of the product of the pressure and flow rate of the liquid ejected from the spray gun is greater than or equal to 2000 PSI*GPM, enabling the achievement of higher power. The battery pack is detachably inserted and removed from the housing along a first direction, the angle α between the first direction and the horizontal or vertical plane being greater than or equal to 10° and less than or equal to 30°. By setting the battery pack to be inserted at an angle, the overall size of the device is reduced while effectively preventing the main unit from slipping, and it is also easier to remove and place the battery pack, making insertion and removal less strenuous. Attached Figure Description

[0018] Figure 1 This is a first structural schematic diagram of the high-pressure cleaning equipment provided in this application;

[0019] Figure 2 This is a second structural schematic diagram of the high-pressure cleaning equipment provided in this application;

[0020] Figure 3 This is a schematic diagram of the structure of the host provided in this application;

[0021] Figure 4 This is the main view of the host provided in this application;

[0022] Figure 5 This is a side view of the host provided in this application;

[0023] Figure 6 This is a cross-sectional view of the high-pressure cleaning equipment provided in this application;

[0024] Figure 7 This is an exploded structural diagram of the high-pressure cleaning equipment provided in this application;

[0025] Figure 8 This is a schematic diagram of the structure of the first housing of the high-pressure cleaning equipment provided in this application;

[0026] Figure 9 This is a schematic diagram of the structure of the second housing of the high-pressure cleaning equipment provided in this application;

[0027] Figure 10 This is a schematic diagram of the high-pressure cleaning equipment provided in this application after omitting the housing;

[0028] Figure 11 This is a partial structural schematic diagram of the high-pressure cleaning equipment provided in this application;

[0029] Figure 12 This is a partial structural diagram of the high-pressure cleaning equipment provided in this application after the battery pack has been disassembled. Detailed Implementation

[0030] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0031] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0032] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0033] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0034] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0035] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0036] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0037] See Figures 1 to 3This application provides a high-pressure cleaning device, including a main unit 100 and a spray gun 200 that can be connected to the main unit 100. The spray gun 200 is detachably connected to the main unit 100 for easy disassembly and storage when not in use. The main unit 100 includes a water inlet 160 and a water outlet 170 for connecting the spray gun 200. The water inlet 160 is connected to an external water source. The power unit 120 introduces external water through the water inlet 160 and sprays water out through the water outlet 170 and the spray gun 200 connected to the water outlet 170.

[0038] The spray gun 200 includes a handle 210, a shaft 220, and a nozzle 300. The handle 210 and shaft 220 are detachably connected, allowing the spray gun 200 to be stored in sections, saving space and reducing the overall size of the machine. The spray gun 200 can be used in two ways: one is with the handle 210 disconnected from the shaft 220, directly connected to the nozzle 300, which allows it to be used as a short gun; the other is with the handle 210 and shaft 220 assembled, with the shaft 220 connected to the nozzle 300, which allows it to be used as a long gun. The short gun can be equipped with a special nozzle 300 for direct water rinsing, while the long gun can be equipped with a high-pressure nozzle 300 for high-pressure rinsing.

[0039] The main unit 100 includes a housing 110, with a base 113 formed at the bottom of the housing 110. The nozzle 300 is disposed on the base 113, making full use of the space in the base 113 and eliminating the need for a separate support structure for the nozzle 300, thus reducing cost and size. In some embodiments, the nozzle 300 can be disassembled and stored in a nozzle storage part 301 on the main unit 100, saving storage space and preventing loss. The nozzle 300 has various models, and to facilitate the placement and removal of the nozzle 300, different models of nozzles 300 can be placed in the corresponding storage holes of the nozzle storage part 301.

[0040] The outer side of the housing 110 forms a first mounting groove 1104 and a second mounting groove 1105. The first mounting groove 1104 is used to mount the gun handle 210 before it is assembled with the gun barrel 220. The second mounting groove 1105 can mount the gun barrel 220 before it is assembled with the gun handle 210. The second mounting groove 1105 can also mount the spray gun 200 after the gun handle 210 and the gun barrel 220 are assembled. The first mounting groove 1104 and the second mounting groove 1105 are distributed on opposite sides of the housing 110 to make full use of space.

[0041] See Figures 3 to 5 Define the length, width, and height of host 100. Let L represent the length of host 100, W represent the width of host 100, and H represent the height of host 100.

[0042] In some embodiments, the length L of the host 100 is 30cm-38cm. In some embodiments, the length L of the host 100 is 32cm-38cm. In some embodiments, the length of the host 100 is 30cm, 31cm, 32cm, 33cm, 34cm, 35cm, 36cm, 37cm or 38cm.

[0043] In some embodiments, the width W of the host 100 is 23cm-28cm. In some embodiments, the width W of the host 100 is 24cm-28cm. In some embodiments, the width W of the host 100 is 23cm, 24cm, 25cm, 26cm, 27cm, or 28cm.

[0044] In some embodiments, the height H of the host 100 is less than or equal to 40cm. In some embodiments, the height H of the host 100 is less than or equal to 38cm. In some embodiments, the height H of the host 100 is 32cm-38cm. In some embodiments, the height H of the host 100 is 40cm, 39.5cm, 39cm, 38.5cm, 38cm, 37.5cm, 37cm, 36.5cm, 36cm, 35.5cm, or 35cm.

[0045] In some embodiments, the volume of the host 100 is less than or equal to 0.032m. 3 The main unit 100 is small in size, occupies little space, and is easy to transport and store. In some embodiments, the volume of the main unit 100 is less than or equal to 0.03m³. 3 In some embodiments, the volume of the host 100 is 0.032m³. 3 0.03m 3 0.028m 3 0.027m 3 0.026m 3 0.025m 3 Or 0.024m 3 .

[0046] When the high-pressure cleaning equipment is operating, the maximum value of the product of the pressure and flow rate of the liquid ejected from the spray gun 200 is greater than or equal to 2000 PSI*GPM. This allows for a large spraying capacity while maintaining a relatively small size for the main unit 100. In some embodiments, the maximum value of the product of the pressure and flow rate of the liquid ejected from the spray gun 200 is greater than or equal to 2500 PSI*GPM. In other embodiments, the maximum value of the product of the pressure and flow rate of the liquid ejected from the spray gun 200 is greater than or equal to 3000 PSI*GPM, 3500 PSI*GPM, 4000 PSI*GPM, 4500 PSI*GPM, or 5000 PSI*GPM. It should be noted that the above-mentioned maximum value of the product of pressure and flow rate should be understood as the maximum value when adapted to different nozzles 300, not the maximum value for a specific nozzle. The unit of pressure is PSI, which stands for pounds per square inch. The unit of flow rate is GPM, which stands for gallons per minute.

[0047] The pressure of the liquid ejected from the spray gun 200 is 1000 PSI-2500 PSI. In some embodiments, the pressure of the liquid ejected from the spray gun 200 is 1200 PSI-1800 PSI. In some embodiments, the pressure of the liquid ejected from the spray gun 200 is 1000 PSI, 1100 PSI, 1200 PSI, 1300 PSI, 1400 PSI, 1500 PSI, 1600 PSI, 1700 PSI, 1800 PSI, or 2000 PSI.

[0048] The flow rate of the liquid ejected from the spray gun 200 is 0.9 GPM-2.0 GPM. In some embodiments, the flow rate of the liquid ejected from the spray gun 200 is 1.0 GPM-1.8 GPM. In some embodiments, the flow rate of the liquid ejected from the spray gun 200 is 0.9 GPM, 1.0 GPM, 1.1 GPM, 1.2 GPM, 1.3 GPM, 1.4 GPM, 1.5 GPM, 1.6 GPM, 1.7 GPM, 1.8 GPM, 1.9 GPM, or 2.0 GPM.

[0049] See Figure 2 , Figures 6 to 10The main unit 100 also includes a power unit 120 and a power supply unit 130. The power unit 120 includes a motor 121 for spraying liquid from the spray gun 200; the power unit 120 also includes a booster pump 122 connected to the motor 121, which drives the booster pump 122 to spray high-pressure liquid from the spray gun 200. The power supply unit 130 includes at least one battery pack 131 for supplying power to the motor 121. A battery compartment 115 and a drive compartment are provided within the housing 110; the battery pack 131 is housed within the battery compartment 115, and the power unit 120 is housed within the drive compartment.

[0050] The main unit 100 is defined as the outer contour of the housing including the battery pack 131. Therefore, the length of the main unit 100 is the length of the outer contour of the housing, the width of the main unit 100 is the width of the outer contour of the housing, and the height of the main unit 100 is the height of the outer contour of the housing. It should be noted that the height of the main unit 100 should include the handle.

[0051] The high-pressure cleaning equipment also includes a liquid tank 400, which is used to hold cleaning fluid. By placing the liquid tank 400 outside the housing 110, the volume of the main unit 100 is reduced, making it easier to install and disassemble.

[0052] The main unit 100 includes a support frame 401, which is located on the outside of the housing 110. The liquid container 400 is detachably connected to the support frame 401. The support frame 401 is foldable for easy storage and convenient use.

[0053] One end of the motor 121 is connected to the booster pump 122, and the other end of the motor 121 is connected to the cooling fan 123. The cooling fan 123 can guide airflow to cool the motor 121.

[0054] The main unit 100 also includes a circuit board assembly 140. The housing 110 has an air inlet 1101 and an air outlet 1102. A heat dissipation airflow path 1103 is formed within the housing 110, guiding airflow from the air inlet 1101 to the air outlet 1102. The circuit board assembly 140 is disposed within the housing 110 and located along the airflow path of the heat dissipation airflow path 1103. When the high-pressure cleaning equipment is operating, the cooling fan 123 rotates to guide airflow within the heat dissipation airflow path 1103, thereby dissipating heat from the circuit board assembly 140.

[0055] The circuit board assembly 140 is positioned near the air inlet 1101. Airflow entering through the air inlet 1101 flows sequentially through the circuit board assembly 140 and the motor 121 before exiting through the air outlet 1102. Therefore, the heat dissipation airflow path 1103 can simultaneously dissipate heat from both the circuit board assembly 140 and the motor 121. Figure 6 The middle arrow indicates the direction of airflow.

[0056] See Figure 6The motor 121 is located below the circuit board assembly 140, and the battery pack 131 is located above the booster pump 122. The circuit board assembly 140 and the battery pack 131 are arranged at intervals along the length of the housing 110 on the upper part of the housing 110. The distribution of the motor 121, battery pack 131, circuit board assembly 140 and booster pump 122 makes the structure compact and minimizes the volume.

[0057] The air inlet 1101 is located on the side of the circuit board assembly 140 away from the battery pack 131, and the air outlet 1102 is located below the battery pack 131. That is, the air inlet 1101 and the air outlet 1102 are distributed on opposite sides of the housing 110, which increases the length of the heat dissipation air passage 1103 and extends the airflow path.

[0058] During use, water may be drawn into the air inlet 1101. To prevent water from directly entering the motor 121, please refer to [reference needed]. Figures 7 to 9 The housing 110 is equipped with a water-blocking rib 116, which blocks water and guides water flow to prevent water from entering the motor 121. The main unit 100 also includes a drain outlet 1106 for drainage.

[0059] A partition 117 is provided between the motor 121 and the circuit board assembly 140. A water-blocking rib 116 is provided above the partition 117 to guide water flow to the partition 117. A drain outlet 1106 is provided on the partition 117. The housing on the air inlet side of the motor 121 has the function of blocking and guiding water flow, guiding water to flow to the bottom of the motor 121. The base 113 of the housing 110 is located at the bottom of the motor 121, and a drain outlet 1106 is provided on the base 113 so that water can be exposed from the bottom.

[0060] The housing 110 includes a detachable first housing 111 and a second housing 112. The first housing 111, the second housing 112 and the base 113 form a drive compartment that can accommodate the power unit 120. Both the first housing 111 and the second housing 112 are provided with partitions 117, and the two partitions 117 are fastened together to form a drain outlet 1106.

[0061] See Figure 6 , Figure 11 and Figure 12 The battery pack 131 is detachably plugged into the housing 110 for easy installation and removal. A battery compartment 115 is provided inside the housing 110. Figure 11 The dashed line represents the battery pack 131, which is housed in the battery compartment 115. One end of the battery compartment 115 forms an installation port for inserting and removing the battery pack 131.

[0062] The angle α between the insertion / removal direction of the battery pack 131 and the horizontal or vertical plane is less than or equal to 30°. By setting the battery pack 131 to be inserted at an angle, the overall size of the device is reduced, and the main unit 100 is effectively prevented from slipping during insertion. This also facilitates the placement and removal of the battery pack 131, making insertion and removal less strenuous. It is understood that during insertion, one hand needs to open the battery compartment cover, and the other hand needs to hold the battery pack 131 to perform the insertion action. If the battery pack 131 is inserted horizontally, the force along the insertion direction will act on the main unit 100, causing it to slip. The angled battery pack insertion scheme of this application effectively prevents the main unit 100 from slipping during insertion.

[0063] The battery pack 131 is detachably inserted into the housing 110 along a first direction I, where the angle α between the first direction I and a horizontal or vertical plane is less than or equal to 30°. In some embodiments, the angle α between the first direction I and a horizontal or vertical plane is greater than or equal to 10° and less than or equal to 30°. In some embodiments, the angle α between the first direction I and a horizontal or vertical plane is greater than or equal to 15° and less than or equal to 20°. In some embodiments, the angle α between the first direction I and a horizontal or vertical plane is equal to 10°, 12°, 15°, 18°, 20°, 22°, 25°, 28°, or 30°.

[0064] After inserting the battery pack 131, the center of gravity of the high-pressure cleaning device is the first center of gravity; after removing the battery pack 131, the center of gravity is the second center of gravity. The distance between the first and second centers of gravity is less than or equal to 2 cm. This ensures that the center of gravity of the high-pressure cleaning device changes minimally after installing or removing the battery pack 131, making it easy for the user to lift. The center of gravity of the high-pressure cleaning device should be understood as excluding the spray gun 200 and cleaning fluid; essentially, it is equivalent to the center of gravity of the main unit 100.

[0065] Let G1 represent the first centroid and G2 represent the second centroid. The distance between the first centroid and the second centroid is the length of the line connecting the two points G1 and G2. This line may extend vertically, horizontally, or obliquely.

[0066] In some embodiments, the distance between the first center of gravity and the second center of gravity is less than or equal to 1.8 cm. In some embodiments, the distance between the first center of gravity and the second center of gravity is equal to 2 cm, 1.9 cm, 1.8 cm, 1.7 cm, 1.6 cm, or 1.5 cm.

[0067] The rated voltage of battery pack 131 is 20V-60V. In some embodiments, the rated voltage of battery pack 131 is 30V-60V. In some embodiments, the rated voltage of battery pack 131 is 20V, 25V, 30V, 35V, 40V, 45V, 50V, 56V, or 60V.

[0068] When the product of the pressure and flow rate of the liquid sprayed from the spray gun 200 reaches its maximum value, the battery pack 131 with a capacity of 336Wh has a runtime of 10 minutes or more. It has strong endurance and meets the needs of various usage scenarios.

[0069] After removing the battery pack 131, the weight of the main unit 100 is less than or equal to 8 kg. In some embodiments, the weight of the main unit 100 is less than or equal to 7 kg. In some embodiments, the weight of the main unit 100 is less than or equal to 6 kg. In some embodiments, the weight of the main unit 100 is 6 kg, 6.5 kg, 7 kg, 7.5 kg, or 8 kg.

[0070] Existing cleaning equipment includes a pull rod and wheels. The pull rod is located on one side of the main unit 100, and the wheels are located at the bottom of the main unit 100. The pull rod can be pulled out or retracted, and the main unit 100 can be moved by pushing the pull rod with the help of the wheels. The high-pressure cleaning equipment provided in this application eliminates the pull rod and wheels, reducing the overall size of the machine.

[0071] The main unit 100 also includes a grip 150 for users to hold and carry the portable high-pressure cleaning equipment. By providing the grip 150, the overall height of the machine is reduced, making it easier to transport and move the high-pressure cleaning equipment, and it can be conveniently stored in the trunk of a car.

[0072] A grip 150 is disposed on the top of the housing 110 and extends along the long side of the top of the housing 110, extending from one end of the housing 110 to the other end. The grip 150 is located on the top of the housing 110 and extends along the length of the top to improve the center of gravity of the high-pressure cleaning equipment.

[0073] The grip 150 is part of the housing 110, or the grip 150 is connected to the housing 110. The height of the main unit 100 includes the grip 150, and the distance from the grip 150 to the bottom of the high-pressure cleaning equipment along the height direction is less than or equal to 40 cm.

[0074] At least a portion of the outer surface of the grip 150 is covered with a flexible layer to provide a stable grip position, increase friction, and reduce slippage.

[0075] The length of the grip 150 is greater than or equal to 15cm. In some embodiments, the length of the grip 150 is 15cm, 16cm, 17cm, 18cm, 19cm, 20cm, 21cm, 22cm, 23cm, 24cm or 25cm.

[0076] The effective grip length of the grip 150 is greater than or equal to 10 cm. It extends a certain distance in the length direction to improve the center of gravity of the high-pressure cleaning equipment. In some embodiments, the effective grip length of the grip 150 is greater than or equal to 15 cm. In some embodiments, the effective grip length of the grip 150 is 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, or 20 cm.

[0077] In the vertical direction, the distance from the grip center O of the grip 150 to the center of gravity of the high-pressure cleaner is less than or equal to 30 cm. This not only facilitates carrying but also makes the structure compact and reduces its size. See also Figure 11 Let O represent the gripping center of the gripper 150, G1 represent the center of gravity of the high-pressure cleaning equipment, and h represent the distance from the gripping center O of the gripper 150 to the center of gravity G1 of the high-pressure cleaning equipment in the height direction.

[0078] In some embodiments, the distance from the grip center O of the grip 150 to the center of gravity G1 of the high-pressure cleaner in the height direction is less than or equal to 28 cm. In some embodiments, the distance from the grip center O of the grip 150 to the center of gravity G1 of the high-pressure cleaner in the height direction is less than or equal to 25 cm. In some embodiments, the distance from the grip center O of the grip 150 to the center of gravity G1 of the high-pressure cleaner in the height direction is 20 cm, 21 cm, 22 cm, 23 cm, 24 cm, 25 cm, 26 cm, 27 cm, 28 cm, 29 cm, or 30 cm.

[0079] For example, the main unit 100 has a length of 36cm, a width of 24cm, and a height of 36.5cm. After removing the battery pack 131, the main unit 100 weighs 6.4kg. The motor 121 has a power of 1400W. The grip 150 has a length of 21.5cm and an effective grip length of 15cm. The battery pack 131 has a rated voltage of 56V.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A high-pressure cleaning device, comprising: case; A power unit, located within the housing, includes a motor; A power supply device, including at least one battery pack, for supplying power to the motor; A grip for the user to hold and carry the high-pressure cleaning equipment; A spray gun, connected to the power unit, is used to spray liquid; as well as When the high-pressure cleaning equipment is working, the maximum pressure of the liquid sprayed from the spray gun is greater than or equal to 1000 PSI; The battery pack is characterized in that it is detachably inserted into the housing along a first direction, wherein the angle α between the first direction and the horizontal or vertical plane is greater than or equal to 10° and less than or equal to 30°.

2. The high-pressure cleaning equipment according to claim 1, characterized in that, The angle α between the first direction and the horizontal or vertical plane is greater than or equal to 15° and less than or equal to 20°.

3. The high-pressure cleaning equipment according to claim 1, characterized in that, The battery pack is detachably inserted into the housing. After the battery pack is inserted, the center of gravity of the high-pressure cleaning device is the first center of gravity. After the battery pack is removed, the center of gravity of the high-pressure cleaning device is the second center of gravity. The distance between the first center of gravity and the second center of gravity is less than or equal to 2 cm.

4. The high-pressure cleaning equipment according to claim 1, characterized in that, The maximum value of the product of the pressure and flow rate of the liquid ejected from the spray gun is greater than or equal to 2000 PSI * GPM.

5. The high-pressure cleaning equipment according to claim 1, characterized in that, The rated voltage of the battery pack is greater than or equal to 20V.

6. The high-pressure cleaning equipment according to claim 1, characterized in that, The grip is disposed on the top of the housing and extends along the long side of the top of the housing, the grip extending from one end of the housing to the other end of the housing.

7. The high-pressure cleaning equipment according to claim 1, characterized in that, The grip is located on the top of the housing, and the distance from the grip to the bottom of the high-pressure cleaning device along the height direction is less than or equal to 40cm.

8. The high-pressure cleaning equipment according to claim 1, characterized in that, The pressure of the liquid ejected from the spray gun is 1000 PSI-2000 PSI.

9. The high-pressure cleaning equipment according to claim 1, characterized in that, In the vertical direction, the distance from the gripping center of the gripping member to the center of gravity of the high-pressure cleaning device is less than or equal to 30cm.

10. A high-pressure cleaning device, comprising: The casing has a top; A power unit, located within the housing, includes a motor and a booster pump driven by the motor; A power supply device, including at least one battery pack, for supplying power to the motor; A spray gun, connected to the power unit, is used to spray liquid; as well as When the high-pressure cleaning equipment is working, the maximum value of the product of the pressure and flow rate of the liquid sprayed from the spray gun is greater than or equal to 2000 PSI * GPM. Its characteristic is that it further includes: A grip for a user to hold and carry the high-pressure cleaning equipment, the grip being disposed on the top of the housing and extending from one end of the housing to the other end of the housing; The battery pack is detachably inserted into the housing along a first direction, wherein the angle α between the first direction and the horizontal or vertical plane is less than or equal to 30°.

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