Bucket type high pressure cleaning machine

Abstract

The present invention provides a bucket-type high-pressure cleaning machine, which belongs to the technical field of cleaning machines. It solves the problem that the existing high-pressure cleaning machines are inconvenient to use and have poor movement stability. The bucket-type high-pressure cleaning machine includes a chassis and a water tank fixed on the chassis, a motor pump assembly is arranged between the chassis and the water tank, the motor pump assembly includes a motor and a pump body, the pump body has a water outlet, the bottom of the water tank and the chassis form a bottom front side surface, the motor pump assembly is inclined in the horizontal direction so that the pump body is close to the front end of the motor, and the water outlet end is arranged obliquely forward, the water outlet end is connected to a water outlet joint, the outer end of the water outlet joint extends out of the middle position of the bottom front side surface and faces straight ahead. In the process of dragging the high-pressure cleaning machine, this structure can pull the high-pressure cleaning machine in all directions through a high-pressure water pipe, which is convenient for the high-pressure cleaning machine to move in all directions, and the high-pressure cleaning machine moves stably.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning machines and relates to a bucket-type high-pressure cleaning machine. Background Art

[0002] As people's quality of life continues to improve, their requirements for household appliances are also getting higher and higher. High-pressure cleaners, as powerful cleaning tools, are commonly used by people to clean roads, walls, and cars. High-pressure cleaners have many internal components, so the overall size and weight are large. When used at home, whether it is convenient to store and move is the first factor to be considered.

[0003] Existing household high-pressure cleaning machines, such as Chinese patent application [application publication number: CN106623174A], disclose a high-pressure cleaning machine, including a body and a water bucket arranged on the body, the body is connected to a spray gun, the water bucket is provided with a water storage chamber, the outer volume of the body is smaller than the volume of the water storage chamber, the body and the water bucket are detachably connected, and the body and the water bucket can be accommodated in the water storage chamber after being disassembled, a water inlet joint and a booster water pump connected to the water inlet joint are provided in the body, the booster water pump is connected to a drive motor, and a battery pack electrically connected to the drive motor is also provided in the body, and the battery pack is fixed in the body or detachably connected in the body.

[0004] The above structure connects the body at the bottom of the water tank, and sets the driving motor, booster pump and battery pack inside the body. The body can be directly disassembled when stored and then placed in a water bucket to reduce the storage space of the high-pressure cleaner. When used next time, the body can be taken out of the water bucket and placed under the water bucket to connect to the water bucket.

[0005] Since the machine body needs to be disassembled during storage and multiple uses, and the water in the bucket needs to be drained, storage is difficult. When in use, the overall volume of the high-pressure cleaner is large, and a large force is required to drag the high-pressure cleaner, which makes it difficult to move the high-pressure cleaner during use, which is not conducive to lightweight design. The machine body contains a drive motor, a booster water pump, and a battery pack. These components will generate a lot of heat when the high-pressure cleaner is working. In order to reduce the volume of the high-pressure cleaner, the gap between the machine body and the above-mentioned components can only be reduced, so that the overall volume of the machine body is set smaller, resulting in the drive motor, the booster water pump, and the battery pack can only dissipate heat by transferring heat to the body and the air outside the body, resulting in poor heat dissipation of these components. In hot weather or under long-term use, the drive motor, the booster water pump, and the battery pack are prone to damage. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems in the existing technology and propose a bucket type high pressure cleaning machine. The technical problem to be solved by the present invention is: how to solve the problem that the existing high pressure cleaning machine is inconvenient to use and has poor moving stability.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A bucket-type high-pressure cleaning machine comprises a chassis and a water tank fixed on the chassis, a motor pump assembly is arranged between the chassis and the water tank, the motor pump assembly comprises a motor and a pump body, the pump body has a water outlet end, and is characterized in that the bottom of the water tank and the chassis form a bottom front side surface, the motor pump assembly is inclined in the horizontal direction so that the pump body is close to the front end of the motor, and the water outlet end is arranged toward the oblique front, the water outlet end is connected to a water outlet joint, and the outer end of the water outlet joint extends out of the middle position of the bottom front side surface and faces straight ahead.

[0009] The high-pressure cleaning machine relies on rollers to achieve position movement. When the entire high-pressure cleaning machine moves, it is necessary to drive the overall motor pump assembly, water tank, existing lithium battery pack and other components to move synchronously. When the water tank is filled with water, it is heavy to directly lift the water tank, so it is usually dragged by the entire high-pressure cleaning machine; the high-pressure cleaning machine is fixed with a water outlet joint at the bottom, and the outer end of the water outlet joint is connected to a high-pressure water pipe. The entire high-pressure cleaning machine is driven to move by pulling the high-pressure water pipe. Since the water outlet end is located in the middle position of the front side of the bottom of the high-pressure cleaning machine, in the process of dragging the high-pressure cleaning machine with the high-pressure water pipe, the force point of the high-pressure cleaning machine is in the middle position of the front side of the bottom, and the high-pressure cleaning machine can be pulled in all directions by the high-pressure water pipe, which is convenient for the high-pressure cleaning machine to move in all directions, and the high-pressure cleaning machine moves stably; further, the motor pump assembly of the present structure is inclined in the horizontal direction, so that the weight of the motor pump assembly is relatively evenly distributed on the left and right sides of the high-pressure cleaning machine, ensuring that the high-pressure cleaning machine is prevented from tilting during the dragging process, thereby ensuring the stability of the high-pressure cleaning machine.

[0010] In the above-mentioned bucket-type high-pressure cleaning machine, the bottom of the water tank is recessed inward to form a first installation cavity, the motor pump assembly is arranged in the first installation cavity and the chassis positions the motor pump assembly in the first installation cavity, the water outlet joint is fixed at the middle position of the front side of the bottom, and the water outlet joint has an inclined section that is inclined and plugged into the water outlet end and a horizontal section that is arranged along the front-to-back direction, and the water outlet of the horizontal section faces directly forward. By forming a first installation cavity through a depression at the bottom of the water tank, the motor pump assembly can be directly embedded in the first installation cavity, and the chassis vertically limits the motor pump assembly in the first installation cavity. At this time, the water in the water tank can dissipate heat and cool down the motor pump assembly in the first installation cavity, so that the high-pressure cleaning machine can be cooled directly by the water in the water tank during long-term use, and there is no need to set up additional cooling pipelines, etc.; in addition, the horizontal section of the water outlet joint can be connected to the high-pressure water pipe, and after the water outlet end is set obliquely forward, the water outlet end can be stably connected to the inclined section of the water outlet joint. The connection structure between the water outlet end and the water outlet joint is simple and convenient, which will not significantly increase the production cost of the high-pressure cleaning machine, and can improve the stability of the movement of the high-pressure cleaning machine while ensuring the convenience of use of the high-pressure cleaning machine.

[0011] In the above-mentioned bucket-type high-pressure cleaning machine, the rear side wall of the water tank is recessed inward to form a second installation cavity, a lithium battery pack is arranged in the second installation cavity, and the second installation cavity is located in the middle of the outer side wall of the water tank. By forming a second installation cavity on the rear side wall of the water tank, the lithium battery pack is positioned in the second installation cavity. Since the second installation cavity is located in the middle of the rear side wall of the water tank, the weight of the lithium battery pack is evenly distributed on the rear of the high-pressure cleaner. When the entire high-pressure cleaner is pulled by the water pipe, the stability of the movement of the high-pressure cleaner is further improved. In addition, the setting of the lithium battery pack requires the first installation cavity to be tilted to make way for the second installation cavity, so that the space of the entire water tank is fully utilized, ensuring that the lithium battery pack and the motor pump assembly can be installed on the water tank. The heat generated during the operation of the lithium battery pack and the motor pump assembly is transferred to the water tank, and the water in the water tank absorbs the heat, thereby achieving indirect cooling of the lithium battery pack and the motor pump assembly. In addition, after the lithium battery pack and the motor pump assembly are installed on the water tank, the weight of the water tank is greatly increased, so that the bottom of the water tank is pressed tightly against the chassis, thereby ensuring the stability of the connection between the water tank and the chassis.

[0012] In the above-mentioned bucket-type high-pressure cleaning machine, the lower end of the second mounting cavity extends to the bottom wall that passes through the water tank, and a battery mounting box for installing a lithium battery pack is provided in the second mounting cavity. The battery mounting box is connected to the top wall of the second mounting cavity by fasteners, and a support column is formed by a protrusion on the chassis for the battery mounting box to lean against, and the support column is partially located in the second mounting cavity.

[0013] By setting the support column on the chassis, the contact area between the battery mounting box and the second mounting cavity can be further reduced, and the bottom of the battery mounting box can be supported, thereby improving the convenience of assembly of the battery mounting box and the stability of use. In addition, by passing the lower end of the second mounting cavity through the bottom wall of the water tank, the volume of the second mounting cavity is further increased, so that the heat of the lithium battery pack in the battery mounting box can be quickly diffused in the second mounting cavity, further improving the heat dissipation efficiency of the lithium battery pack and ensuring the stability of use of the high-pressure cleaning machine.

[0014] The upper end of the support column has a semicircular support plate 1 and a support plate 2 arranged radially along the support column, one end of the support plate 2 is connected to the middle of the support plate 1, and the upper ends of the support plate 1 and the support plate 2 are both against the lower end of the battery installation box. Through the coordinated arrangement of the support plate 1 and the support plate 2, the support effect of the bottom of the battery installation box can be guaranteed, and the contact area between the installation box and the support column can be minimized, thereby achieving the improvement of the heat dissipation effect of the bottom of the battery installation box while ensuring the stability of the battery installation box.

[0015] In the above-mentioned bucket-type high-pressure cleaning machine, the battery mounting box includes a box body, the upper end of the box body is convex to form a mounting panel, the mounting panel is connected to a circuit board, the second mounting cavity has a chamber 1 for the battery mounting box to be embedded and a chamber 2 for the circuit board to be embedded, and the chamber 1 and the chamber 2 are connected to each other.

[0016] By installing the circuit board on the installation panel, the connection between the circuit board and the lithium battery pack in the box body is more convenient. The circuit board is directly set in the second chamber, so that the first installation cavity can dissipate heat for the circuit board more quickly, thereby improving the heat dissipation effect of the circuit board.

[0017] In the above-mentioned bucket-type high-pressure cleaning machine, the left and right sides of the upper surface of the front end of the chassis are both raised upward to form a positioning column, and the lower surface of the front end of the chassis is provided with a plug-in groove along the axial direction of the positioning column at the position corresponding to the positioning column. The bucket-type high-pressure cleaning machine also includes a universal wheel with a mounting shaft, and the universal wheel has two, and the mounting shaft of each universal wheel is inserted into the corresponding plug-in groove. The outer bottom surface of the water tank has an upwardly concave limiting groove, and the positioning column is embedded in the limiting groove. The universal wheel is arranged on the left and right sides of the front end of the lower surface of the chassis. At this time, the first mounting cavity is inclined to achieve the giving way of the universal wheel, and the water outlet end is arranged to face the oblique front and the water outlet joint is arranged in the middle position of the bottom front side. This structure avoids the installation position of the universal wheel, which is convenient for the installation of the universal wheel. The positioning column is embedded in the limiting groove to achieve the pre-positioning of the water tank on the chassis, which further improves the assembly efficiency of the high-pressure cleaning machine.

[0018] In the above-mentioned bucket-type high-pressure cleaning machine, the cavity wall of the second installation cavity is connected to the cavity wall of the first installation cavity through the bottom wall of the water tank, and the second installation cavity and the first installation cavity are distributed in sequence along the length direction of the water tank.

[0019] The arrangement of this structure ensures that the first installation cavity and the second installation cavity do not interfere with each other, so that the lithium battery pack and the motor pump assembly can dissipate heat in their respective cavities, further improving the heat dissipation effects of the lithium battery pack and the motor pump assembly.

[0020] In the above-mentioned bucket-type high-pressure cleaning machine, the motor pump assembly includes a pump body, a pre-positioning groove 1 is provided at the bottom of the first mounting cavity, a pre-positioning groove 2 is provided on the chassis, and a pre-positioning ring is sleeved on the pump body along the circumferential direction, the upper end of the pre-positioning ring is embedded in the pre-positioning groove 1, and the lower end of the pre-positioning ring is embedded in the pre-positioning groove 2.

[0021] By setting the pre-positioning ring, axial limiting of the pump body is achieved to prevent the motor pump assembly from moving along the length direction of the first mounting cavity. At the same time, the pump body is pre-positioned in the bottom of the first mounting cavity by the pre-positioning ring, which improves the stability of the motor pump assembly. In addition, the setting of the pre-positioning ring reduces the contact area between the motor pump assembly and the bottom of the first mounting cavity and the chassis, increases the circulation of air in the first mounting cavity and the chassis, and improves the heat dissipation effect.

[0022] In the above-mentioned bucket-type high-pressure cleaning machine, both upper and lower ends of the pump body are formed with mounting columns along vertical protrusions, a positioning groove 1 is provided at the bottom of the first mounting cavity, a positioning groove 2 is provided on the chassis, the positioning column at the upper end of the pump body is embedded in the positioning groove 1, and the positioning column at the lower end of the pump body is embedded in the positioning groove 2.

[0023] By arranging positioning columns at the upper and lower ends of the pump body, circumferential positioning of the pump body can be achieved, and the method of forming the mounting columns through protrusions also reduces the contact area between the pump body and the first mounting cavity and the chassis, thereby increasing the air circulation between the first mounting cavity and the chassis, and further improving the heat dissipation effect.

[0024] In the above-mentioned bucket-type high-pressure cleaning machine, a plurality of heat dissipation holes 1 are provided on the chassis, and the heat dissipation hole 1 is located below the first mounting cavity. The chassis is recessed on one side of the heat dissipation hole 1 to form a blocking bar 1, and the blocking bar 1 is located directly above the heat dissipation hole 1.

[0025] The setting of this structure allows the outside air to flow into the first installation cavity from the heat dissipation hole 1 below the chassis, and the setting of the blocking strip 1 prevents water from splashing into the first installation cavity from the heat dissipation hole 1 when the high-pressure cleaner is cleaning, thereby preventing outside dust and water from entering the first installation cavity while improving the heat dissipation effect.

[0026] In the above-mentioned bucket-type high-pressure cleaning machine, a plurality of heat dissipation holes 2 are provided on the chassis, and the heat dissipation holes 2 are located below the second mounting cavity. The chassis is recessed on one side of the heat dissipation hole 2 to form a blocking bar 2, and the blocking bar 2 is located directly above the heat dissipation hole 2.

[0027] The setting of this structure allows the outside air to flow into the second installation cavity from the heat dissipation hole 2 under the chassis, and the setting of the blocking strip 2 prevents water from splashing into the second installation cavity from the heat dissipation hole 2 when the high-pressure cleaner is cleaning, thereby preventing outside dust and water from entering the second installation cavity while improving the heat dissipation effect.

[0028] In the above-mentioned bucket-type high-pressure cleaning machine, a water tank cover and a rotating handle are provided on the top of the water tank. The water tank cover can be opened or closed, and the rotating handle can be unfolded or retracted.

[0029] Compared with the prior art, this bucket type high pressure cleaning machine has the following advantages:

[0030] 1. By tilting the first installation cavity along the length direction of the water tank, the weight of the motor pump assembly in the first installation cavity can be evenly distributed on the left and right sides of the water outlet joint, and through the setting of the inclined section, the water outlet end of the motor pump assembly can be stably connected to the inclined section of the water outlet joint. The inclined setting of one end of the water outlet joint is more common in the market, so it will not significantly increase the production cost of the high-pressure cleaning machine, and can improve the stability of the movement of the high-pressure cleaning machine while ensuring the convenience of use of the high-pressure cleaning machine.

[0031] 2. Since the second installation cavity is located in the middle of the outer wall of the water tank, the weight of the lithium battery pack is evenly distributed on the left and right sides of the water outlet joint, so that when the high-pressure water pipe pulls the entire high-pressure cleaning machine, the weight on both sides of the water outlet joint is roughly equal, which further improves the stability of the movement of the high-pressure cleaning machine. In addition, the setting of the lithium battery pack requires the first installation cavity to be tilted to make way for the second installation cavity, so that the volume of the entire high-pressure cleaning machine is reduced as much as possible to achieve the purpose of convenient storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0033] Figure 2 It is a bottom view of the present invention without the chassis installed.

[0034] Figure 3 It is a three-dimensional structural schematic diagram of the present invention without installing the chassis.

[0035] Figure 4 It is a bottom view of the present invention.

[0036] Figure 5 yes Figure 4 Sectional view of AA.

[0037] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0038] Figure 7 It is a schematic diagram of the structure of the present invention without installing the motor pump assembly and the chassis.

[0039] Figure 8 It is a structural schematic diagram of the chassis in the present invention.

[0040] Fig. 9 It is a structural schematic diagram of the motor pump assembly in the present invention.

[0041] Fig.10 It is a structural schematic diagram of the assembly of the battery installation box, the circuit board and the fasteners in the present invention.

[0042] Fig.11 It is a partial cross-sectional structural schematic diagram of the present invention.

[0043] In the figure, 1, water tank; 11, water storage chamber; 12, first installation chamber; 12a, pre-positioning groove 1; 12b, installation part; 12c, clearance opening 1; 12d, positioning groove 1; 13, second installation chamber; 13a, chamber 1; 13b, chamber 2; 14, pulling end; 15, installation end; 16, water outlet joint; 16a, inclined section; 16b, horizontal section; 17, pipe connector; 18, limit groove; 2, motor pump assembly; 20, motor; 21, pump body; 21a, installation column; 22, pre-positioning ring; 22a, upper half ring; 22b, lower half ring; 3 , chassis; 31, support column; 31a, support plate one; 31b, support plate two; 32, plug-in column; 33, pre-positioning groove two; 33a, make way two; 34, positioning groove two; 35, heat dissipation hole one; 36, blocking bar one; 37, heat dissipation hole two; 38, blocking bar two; 39, positioning column; 4, lithium battery pack; 5, battery installation box; 51, box body; 52, cooling fins; 53, installation panel; 6, fasteners; 7, circuit board; 8, universal wheel; 80, installation shaft; 10, roller; 19, water tank cover; 23, rotating handle; 24, bottom front side. DETAILED DESCRIPTION

[0044] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0045] like Figure 1 , Figure 2 and Figure 3As shown, the bucket-type high-pressure cleaning machine includes a motor pump assembly 2, a chassis 3 with a roller 10 and a water tank 1 with a water storage chamber 11. The water tank 1 is fixed on the chassis 3. The bottom of the water tank 1 and the chassis 3 form a bottom front side 24. The motor pump assembly 2 includes a motor 20 and a pump body 21. The pump body 21 has a water outlet end 210.

[0046] Specifically, the bottom of the water tank 1 is recessed inward to form a first installation cavity 12, and the motor pump assembly 2 is arranged in the first installation cavity 12. The chassis 3 is fixedly connected to the bottom of the water tank 1 and positions the motor pump assembly 2 in the first installation cavity 12. The motor pump assembly 2 is inclined in the horizontal direction so that the pump body 21 is close to the front end of the water tank 1 relative to the motor 20, and the water outlet end 210 faces obliquely forward of the water tank 1. A water outlet connector 16 is provided in the middle position of the bottom front side surface 24. The water outlet connector 16 has an inclined section 16a that is inclined and plugged into the water outlet end 210 and a horizontal section 16b that is arranged along the front-to-back direction. The horizontal section 16b is located in the middle position of the bottom front side surface 24, and the water outlet 16b1 of the horizontal section 16b faces straight ahead. The high-pressure cleaning machine relies on the roller 10 to achieve position movement. When the entire high-pressure cleaning machine moves, it is necessary to drive the overall motor pump assembly 2, the water tank 1 and the existing lithium battery pack and other components to move synchronously. When the water tank 1 is filled with water, it is heavy to directly lift the water tank 1, so it is usually adopted to drag the entire high-pressure cleaning machine. The water outlet 16b1 of the horizontal section 16b can be connected to the high-pressure water pipe, and the entire high-pressure cleaning machine is driven to move by pulling the high-pressure water pipe. Since the horizontal section 16b is located in the middle position of the bottom front side surface 24, in the process of dragging the high-pressure cleaning machine with the high-pressure water pipe, the force point of the high-pressure cleaning machine is in the middle position of the bottom front side surface 24, and the high-pressure cleaning machine can be pulled in all directions by the high-pressure water pipe, which is convenient for the high-pressure cleaning machine to move in all directions. The high-pressure cleaning machine can move in the direction of rotation, and the high-pressure cleaning machine moves stably; further, the motor pump assembly 2 of the present structure is inclined in the horizontal direction, so that the weight of the motor pump assembly 2 is relatively evenly distributed on the left and right sides of the high-pressure cleaning machine, ensuring that the high-pressure cleaning machine is prevented from tilting during dragging, thereby ensuring the stability of the movement of the high-pressure cleaning machine; in addition, the water outlet end 210 faces the oblique front of the water tank 1, and the water outlet end 210 of the motor pump assembly 2 can be stably connected to the inclined section 16a of the water outlet joint 16, so that the connection structure between the water outlet end 210 and the water outlet joint 16 is simple and convenient, and will not significantly increase the production cost of the high-pressure cleaning machine, and can improve the stability of the movement of the high-pressure cleaning machine while ensuring the convenience of use of the high-pressure cleaning machine.

[0047] Further, such as Figures 4 to 8As shown, the rear side wall 14 of the water tank 1 is recessed inward to form a second installation cavity 13, and a lithium battery pack 4 is arranged in the second installation cavity 13. The second installation cavity 13 is located in the middle of the outer wall of the water tank 1, and the lower end of the second installation cavity 13 extends to the bottom wall penetrating the water tank 1. A battery installation box 5 for installing the lithium battery pack 4 is provided in the second installation cavity 13, and the battery installation box 5 is connected to the top wall of the second installation cavity 13 by a fastener 6. A support column 31 is formed on the chassis 3 to be abutted against by the battery installation box 5, and the support column 31 is partially located in the second installation cavity 13. The upper end of the support column 31 has a semicircular support plate 1 31a and a support plate 2 31b radially arranged along the support column 31, one end of the support plate 2 31b is connected to the middle part of the support plate 1 31a, and the upper ends of the support plate 1 31a and the support plate 2 31b are both abutted against the lower end of the battery installation box 5. By forming a second installation cavity 13 on the rear side wall 14 of the water tank 1, the lithium battery pack 4 is positioned in the second installation cavity 13. Since the second installation cavity 13 is located in the middle of the rear side wall 14 of the water tank 1, the weight of the lithium battery pack 4 is evenly distributed on the rear of the high-pressure cleaning machine. When the entire high-pressure cleaning machine is pulled by the high-pressure water pipe, the stability of the movement of the high-pressure cleaning machine is further improved. In addition, the setting of the lithium battery pack 4 requires the first installation cavity 12 to be tilted to make way for the second installation cavity 13, so that the space of the entire water tank 1 is fully utilized, ensuring that the lithium battery pack 4 and the motor pump assembly 2 can be installed on the water tank 1. The heat generated by the lithium battery pack 4 and the motor pump assembly 2 during operation is transferred to the water tank 1, and the water in the water tank 1 absorbs the heat, thereby achieving indirect cooling of the lithium battery pack 4 and the motor pump assembly 2. In addition, after the lithium battery pack 4 and the motor pump assembly 2 are installed on the water tank 1, the weight of the water tank 1 is greatly increased, so that the bottom of the water tank 1 is pressed tightly against the chassis 3, thereby ensuring the stability of the connection between the water tank 1 and the chassis 3. In addition, the motor pump assembly 2 in the present structure is arranged at the front position of the bottom of the water tank 1, and the lithium battery pack 4 is arranged at the rear of the water tank. The rear of the high-pressure cleaning machine is counterweighted so that the center of gravity of the water tank is located in the middle position, and the center of gravity of the high-pressure cleaning machine is located in the middle position, which is beneficial to the stability of the movement of the high-pressure cleaning machine.

[0048] like Figure 5 and Fig.10As shown, the battery installation box 5 includes a box body 51, and a plurality of strip-shaped heat dissipation fins 52 are arranged on the outer wall of the box body 51. The upper end of the box body 51 is raised to form an installation panel 53, and the installation panel 53 is connected to the circuit board 7. The second installation cavity 13 has a chamber 13a for the battery installation box 5 to be embedded and a chamber 2 13b for the circuit board 7 to be embedded. The chamber 2 13b is located above the chamber 1 13a, and the chamber 1 13a and the chamber 2 13b are connected to each other. By installing the circuit board 7 on the installation panel 53, the connection between the circuit board 7 and the lithium battery pack 4 in the box body 51 is more convenient. The circuit board 7 is directly arranged in the chamber 2 13b, so that the second installation cavity 13 can dissipate heat for the circuit board 7 more quickly, thereby improving the heat dissipation effect of the circuit board 7; in addition, the circuit board 7 is arranged behind the rear side wall 14 of the water tank 1, so that the installation height of the circuit board 7 is relatively high, which is convenient for users to operate the high-pressure cleaning machine.

[0049] like Fig.11 As shown, the left and right sides of the upper surface of the front end of the chassis 3 are both raised upward to form a positioning column 39, and the lower surface of the front end of the chassis 3 is provided with a plug-in groove 32 along the axial direction of the positioning column 39 corresponding to the position of the positioning column 39. The bucket-type high-pressure cleaning machine also includes a universal wheel 8 with a mounting shaft 80, and the universal wheel 8 has two universal wheels. The mounting shaft 80 of each universal wheel 8 is inserted into the corresponding plug-in groove 32, and the outer bottom surface of the water tank 1 has an upwardly concave limit groove 18, and the positioning column 39 is embedded in the limit groove 18. The universal wheel 8 is arranged on the left and right sides of the front end of the lower surface of the chassis 3. At this time, the first installation cavity 13 is tilted to make way for the universal wheel 8, and the water outlet end 210 faces the oblique front of the water tank 1 and the water outlet joint 16 is arranged in the middle position of the front side of the bottom of the water tank 1. This structure avoids the installation position of the universal wheel 8 and facilitates the installation of the universal wheel 8. The positioning column 39 is embedded in the limiting groove 18 to realize the pre-positioning of the water tank 1 on the chassis 3, further improving the assembly efficiency of the high-pressure cleaning machine.

[0050] like Figures 5 to 8 As shown, a pipe connector 17 connected to the water inlet end of the motor pump assembly 2 is connected to the bottom of the water tank 1. The pipe connector 17 is located on one side of the second installation cavity 13 and is arranged close to the water inlet end of the motor pump assembly 2. The cavity wall of the second installation cavity 13 is connected to the cavity wall of the first installation cavity 12 through the bottom wall of the water tank 1. The second installation cavity 13 and the first installation cavity 12 are distributed in sequence along the length direction of the water tank 1.

[0051] like Figures 7 to 9As shown, the motor pump assembly 2 includes a pump body 21, a pre-positioning groove 12a is provided at the bottom of the first installation cavity 12, a pre-positioning groove 233 is provided on the chassis 3, a pre-positioning ring 22 is sleeved on the pump body 21 and arranged in the circumferential direction, the upper end of the pre-positioning ring 22 is embedded in the pre-positioning groove 12a, and the lower end of the pre-positioning ring 22 is embedded in the pre-positioning groove 233, the groove depth of the pre-positioning groove 12a and the groove depth of the pre-positioning groove 233 are both less than or equal to the width of the pre-positioning ring 22, and the pre-positioning ring 22 is divided into an upper half ring 22a and a lower half ring 22b, and the upper half ring 22a is embedded in the pre-positioning groove 12a. 2a, the lower half ring 22b is embedded in the pre-positioning groove 23, the end of the upper half ring 22a is abutted against the end of the lower half ring 22b, the bottom wall of the first mounting cavity 12 is raised to form an arc-shaped mounting portion 12b, the pre-positioning groove 12a is arranged in the middle of the mounting portion 12b, the mounting portion 12b is recessed inward at both ends of the pre-positioning groove 12a to form a positioning opening 12c, the positioning opening 12c is connected with the pre-positioning groove 12a, the chassis 3 is raised outward at both ends of the pre-positioning groove 23 to form a positioning opening 23a, the positioning opening 23a is connected with the pre-positioning groove 233. By limiting the width of the pre-positioning ring 22, a gap is created between the motor at the pre-positioning ring 22 and the notches of the pre-positioning groove 1 12a and the notches of the pre-positioning groove 2 33, thereby further ensuring that when the motor pump assembly 2 vibrates, the impact on the chassis 3 and the first mounting cavity 12 is reduced; and by adopting a split design for the pre-positioning ring 22, the lower half ring 22b is first embedded in the pre-positioning groove 2 33, and then the chassis 3 is fixed on the bucket, so that the upper half ring 22a can be first embedded in the pre-positioning groove The first and second positioning ports 12a and 33a are provided so that when the pre-positioning ring 22 needs to be disassembled, the operator only needs to put his fingers into the first and second positioning ports 12c and 33a and pinch the pre-positioning ring 22 and then remove it, thereby improving the disassembly style and the area that the operator holds by hand, so that the pre-positioning ring 22 can be quickly taken out during disassembly and maintenance.

[0052] like Figure 7 and Fig. 9 As shown, both upper and lower ends of the pump body 21 are formed with vertical protrusions to form mounting columns 21a, a positioning groove 12d is provided at the bottom of the first mounting cavity 12, a positioning groove 2 34 is provided on the chassis 3, the mounting column 21a at the upper end of the pump body 21 is embedded in the positioning groove 12d, and the mounting column 21a at the lower end of the pump body 21 is embedded in the positioning groove 2 34.

[0053] like Figure 8As shown, the chassis 3 is provided with a plurality of heat dissipation holes 35, the heat dissipation holes 35 are located below the first mounting cavity 12, the chassis 3 is recessed at one side of the heat dissipation holes 35 to form a blocking bar 36, the blocking bar 36 is located directly above the heat dissipation holes 35, the chassis 3 is provided with a plurality of heat dissipation holes 37, the heat dissipation holes 37 are located below the second mounting cavity 13, the chassis 3 is recessed at one side of the heat dissipation holes 37 to form a blocking bar 38, the blocking bar 38 is located directly above the heat dissipation holes 37.

[0054] A water tank cover 19 and a rotating handle 23 are provided on the top of the water tank 1. The water tank cover 19 can be opened or closed, and the rotating handle 23 can be unfolded or retracted.

[0055] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A bucket-type high-pressure cleaning machine, comprising a chassis (3) and a water tank (1) fixed on the chassis (3), a motor pump assembly (2) being arranged between the chassis (3) and the water tank (1), the motor pump assembly (2) comprising a motor (20) and a pump body (21), the pump body (21) having a water outlet (210), characterized in that: The bottom of the water tank (1) and the chassis (3) form a bottom front side surface (24); the motor pump assembly (2) is arranged in an inclined manner in the horizontal direction so that the pump body (21) is close to the front end of the high-pressure cleaning machine relative to the motor (20), and the water outlet end (210) is arranged obliquely forward; the water outlet end (210) is connected to a water outlet connector (16); the outer end of the water outlet connector (16) extends out of the middle position of the bottom front side surface (24) and faces straight forward; the bottom of the water tank (1) is recessed inward to form a first installation cavity ( 12), the motor pump assembly (2) is arranged in the first installation cavity (12) and the chassis (3) positions the motor pump assembly (2) in the first installation cavity (12), the water outlet joint (16) is fixed at the middle position of the bottom front side (24), the water outlet joint (16) comprises an inclined section (16a) which is arranged obliquely and plugged with the water outlet end (210) and a horizontal section (16b) arranged along the front-back direction, the water outlet (16b1) of the horizontal section (16b) faces directly forward; the rear side of the water tank (1) is The wall (14) is recessed inward to form a second installation cavity (13), a lithium battery pack (4) is arranged in the second installation cavity (13), and the second installation cavity (13) is located in the middle of the outer wall of the water tank (1); the lower end of the second installation cavity (13) extends to the bottom wall that passes through the water tank (1), and a battery installation box (5) for installing the lithium battery pack (4) is arranged in the second installation cavity (13), and the battery installation box (5) is connected to the top wall of the second installation cavity (13) by a fastener (6). The protrusion forms a support column (31) for the battery installation box (5) to abut against, and the support column (31) is partially located in the second installation cavity (13); the cavity bottom of the installation cavity (12) is provided with a pre-positioning groove (12a), the chassis (3) is provided with a pre-positioning groove (33), and the pump body (21) is sleeved with a pre-positioning ring (22) arranged along the circumferential direction, the upper end of the pre-positioning ring (22) is embedded in the pre-positioning groove (12a), and the lower end of the pre-positioning ring (22) is embedded in the pre-positioning groove (33).

2. The bucket-type high-pressure cleaning machine according to claim 1, characterized in that: The battery installation box (5) comprises a box body (51), the upper end of the box body (51) is raised to form a mounting panel (53), the mounting panel (53) is connected to a circuit board (7), the second mounting cavity (13) comprises a first cavity (13a) for embedding the battery installation box (5) and a second cavity (13b) for embedding the circuit board (7), the first cavity (13a) and the second cavity (13b) being interconnected.

3. The bucket type high pressure cleaning machine according to claim 1, characterized in that: The left and right sides of the upper surface of the front end of the chassis (3) are both raised upward to form a positioning column (39), and the lower surface of the front end of the chassis (3) is provided with a plug-in groove (32) along the axial direction of the positioning column (39) at a position corresponding to the positioning column (39). The bucket-type high-pressure cleaning machine also includes a universal wheel (8) having a mounting shaft (80), and the universal wheel (8) has two universal wheels, and the mounting shaft (80) of each universal wheel (8) is inserted into a corresponding plug-in groove (32). The outer bottom surface of the water tank (1) has a limit groove (18) that is recessed upward, and the positioning column (39) is embedded in the limit groove (18).

4. The bucket type high pressure cleaning machine according to claim 1, characterized in that: The upper and lower ends of the pump body (21) are both vertically protruded to form mounting columns (21a); ​​a first positioning groove (12d) is provided at the bottom of the mounting cavity (12); a second positioning groove (34) is provided on the chassis (3); the mounting column (21a) at the upper end of the pump body (21) is embedded in the first positioning groove (12d); and the mounting column (21a) at the lower end of the pump body (21) is embedded in the second positioning groove (34).

5. The bucket type high pressure cleaning machine according to claim 1, characterized in that: The chassis (3) is provided with a plurality of heat dissipation holes (35), the heat dissipation holes (35) being located below the mounting cavity (12), and the chassis (3) is recessed on one side of the heat dissipation holes (35) to form a blocking bar (36), the blocking bar (36) being located directly above the heat dissipation holes (35).

6. The bucket type high pressure cleaning machine according to claim 1, characterized in that: A water tank cover (19) and a rotating handle (23) are provided on the top of the water tank (1); the water tank cover (19) can be opened or closed, and the rotating handle (23) can be unfolded or retracted.

Images