Pressure cleaning machine

Abstract

A pressure washer includes: a washer body; the water tank is detachably connected with the cleaning machine main body, the water tank comprises a containing cavity, when the water tank is separated from the cleaning machine main body, the containing cavity is suitable for containing the cleaning machine main body, and when the water tank is connected with the cleaning machine main body, the water tank is suitable for supplying water to the cleaning machine main body; and the cover body is detachably connected with the water tank. The pressure cleaning machine provided by the utility model can still be used in water-free and water-deficient environments, and is convenient to store after being used.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a pressure cleaning machine. Background Art

[0002] Pressure washers typically use a power unit to drive a pump to pressurize water, which then flushes away dirt from surfaces. They are widely used in various areas of life, such as cleaning floors and vehicles. Compared to traditional manual cleaning, pressure washers significantly reduce manpower requirements, save operator time, and offer superior cleaning results.

[0003] Currently, common pressure washers have problems such as difficulty in obtaining water and being unable to be used when there is no water source. They are also inconvenient to carry and difficult to store. Therefore, there is an urgent need to provide a pressure washer that can improve the convenience of using the pressure washer. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a pressure cleaning machine which can still work normally in a water-deficient or water-free environment and can be conveniently stored when not in use.

[0005] In order to solve the above technical problems, an embodiment of the present utility model provides a pressure cleaning machine, comprising: a cleaning machine body; a water tank, which is detachably connected to the cleaning machine body, the water tank including a accommodating cavity, when the water tank is separated from the cleaning machine body, the accommodating cavity is suitable for accommodating the cleaning machine body, when the water tank is connected to the cleaning machine body, the water tank is suitable for supplying water to the cleaning machine body; a cover body, which is detachably connected to the water tank.

[0006] Optionally, it also includes: a water outlet structure, which is arranged at the bottom of the water tank; a water inlet structure, which is arranged on the cleaning machine body, and the water inlet structure is connected to the water outlet structure when the water tank is connected to the cleaning machine body.

[0007] Optionally, the bottom of the water tank has an installation cavity protruding toward the accommodating cavity, and the water outlet structure includes: a cover body, which is located in the accommodating cavity and is arranged outside the installation cavity, and there is a gap between the cover body and the bottom of the water tank; a water outlet valve, which is installed in the installation cavity, and the top of the water outlet valve has a water inlet, and the water inlet is connected to the gap.

[0008] Optionally, the water outlet valve further includes a shell and a seal, the shell is connected to the seal, the water inlet is arranged at the top of the shell, and the seal is provided with a plurality of water inlet holes, which are connected to the water inlet.

[0009] Optionally, the sealing member includes a valve hole and a valve core, the valve hole is arranged in the sealing member, the valve hole is communicated with the water inlet hole, the bottom of the valve hole has a water outlet, the valve core is arranged in the valve hole, and the valve core abuts against the water outlet to seal the water outlet.

[0010] Optionally, the water inlet structure includes a water inlet and a thimble, the water inlet is protruding on the bottom surface of the cleaning machine body, and the thimble is set in the water inlet. When the water tank is connected to the cleaning machine body, the water inlet is connected to the sealing component, and the thimble pushes the valve core to move along the axial direction of the valve hole to open the water outlet.

[0011] Optionally, the water inlet and the sealing member are interference-connected.

[0012] Optionally, the cleaning machine body further includes a pump, the pump including a first end and a second end opposite to each other, and the first end of the pump is connected to the water inlet structure.

[0013] Optionally, the cleaning machine body further includes a spray gun and a spring tube, one end of the spring tube is connected to the second end of the pump, and the other end of the spring tube is connected to the spray gun.

[0014] Optionally, a first receiving chamber and a second receiving chamber are provided in the cleaning machine body, the first receiving chamber is used to receive the spray gun, and the second receiving chamber is used to receive the spring tube.

[0015] Optionally, the spray gun is provided with a trigger self-locking mechanism, which includes: a trigger; a movable block, which is connected to the trigger and is provided with a locking groove; a locking piece, which includes a first end; when the trigger is pressed, the trigger is suitable for pushing the movable block toward the direction of the locking piece until the first end is engaged in the locking groove, so that the trigger is locked in a pressed state.

[0016] Optionally, limiting members are symmetrically arranged on both sides of the movable block, the limiting members include a first arc surface and a second arc surface, the locking groove is arranged on the limiting member and is located between the first arc surface and the second arc surface; the first end of the locking member is symmetrically arranged above the limiting member and abuts against the first arc surface, the first end of the locking member is suitable for sliding along the first arc surface to engage into the locking groove, and is suitable for sliding along the second arc surface to disengage from the locking groove.

[0017] Optionally, the curvature of the first arc surface is greater than the curvature of the second arc surface.

[0018] Optionally, a first notch is provided on the bottom edge of the water tank, and a second notch is provided on the top edge of the cleaning machine body. When the water tank is connected to the cleaning machine body, the first notch and the second notch are combined to form a through hole for the spring tube to pass through.

[0019] Optionally, a first clip is provided on the water tank, and the first clip is symmetrically arranged on the outer side wall of the water tank; a first slot is provided on the cleaning machine body, and the first slot matches the first clip.

[0020] Optionally, a second buckle is provided on the water tank, and the second buckle is symmetrically arranged on the outer side wall of the water tank; a second slot is provided on the cover body, and the second slot matches the second buckle.

[0021] Optionally, the first buckle and the second buckle are arranged on the same side of the water tank.

[0022] Optionally, limiting ribs are provided on the side walls of the accommodating cavity, and when the cleaning machine body is placed in the accommodating cavity, the limiting ribs are used to limit the movement of the cleaning machine body.

[0023] Optionally, a limiting groove is provided on the outer side wall of the cleaning machine body, and when the cleaning machine body is placed in the accommodating cavity, the limiting groove is engaged with the limiting rib.

[0024] Optionally, a sealing ring groove is provided at the bottom of the cover body, and a cover body sealing ring is provided in the sealing ring groove.

[0025] Optionally, the cover sealing ring is a rubber ring or a silicone ring.

[0026] Optionally, when the cover body is connected to the water tank, the edge of the open end of the water tank is clamped between the edge of the cover body and the cover body sealing ring, and the edge of the open end of the water tank is interference fit with the edge of the cover body and the cover body sealing ring.

[0027] Optionally, a water filling port is provided on the cover body, and when the cover body is connected to the water tank, the water filling port is communicated with the accommodating cavity.

[0028] Optionally, a water inlet cover is further provided on the cover body, and the water inlet cover is used to seal the water inlet.

[0029] Optionally, a first handle is further provided on the cleaning machine body, and both ends of the first handle are rotatably connected to the cleaning machine body respectively.

[0030] Optionally, a second handle is further provided on the cover body, and both ends of the second handle are rotatably connected to the cover body respectively.

[0031] Optionally, the ratio between the volume of the water tank and the volume of the cleaning machine body is 8:5.

[0032] Compared with the prior art, the technical solution of the embodiment of the utility model has the following beneficial effects:

[0033] The pressure washer provided by the present invention can be used independently for cleaning when a water source is available, using the water purifier body and the self-priming hose. In the absence of water or a water source, the water tank is connected to the water purifier body, and the water in the tank can be used to supply water to the cleaning body to complete the cleaning process. Furthermore, when the cleaning machine is not in use, the water purifier body and the water tank can be disassembled, and the water purifier body can be stored in the water tank's accommodating chamber and covered with a cover, thereby reducing the space occupied by the cleaning machine and making it easier for users to store it.

[0034] Furthermore, the device further comprises a water outlet structure, which is disposed at the bottom of the water tank; and a water inlet structure, which is disposed on the main body of the cleaning machine and is connected to the water outlet structure when the water tank and the main body of the cleaning machine are connected. By providing the water outlet structure and the water inlet structure, water is supplied from the water tank to the main body of the cleaning machine through the water outlet structure and the water inlet structure when the water tank and the main body of the cleaning machine are connected.

[0035] Furthermore, the sealing member includes a valve hole and a valve core. The valve hole is disposed within the sealing member and communicates with the water inlet hole. The bottom of the valve hole has a water outlet. The valve core is disposed within the valve hole and abuts against the water outlet to seal the water outlet. When no external force is applied to the sealing member of the water outlet structure, the valve core abuts against the water outlet to seal the water outlet. Therefore, when the water tank is disassembled from the main body of the cleaning machine, the bottom of the water tank will not leak, and the water tank can be used as a tool for storing or transporting water.

[0036] Furthermore, the cleaning machine body is provided with a first storage cavity and a second storage cavity. The first storage cavity is used to store the spray gun, and the second storage cavity is used to store the spring tube. When the cleaning machine body is not in use, the spring tube can be retracted, and the spray gun and spring tube can be stored in the cleaning machine body, thereby fully utilizing the space of the cleaning machine body and reducing the space occupied by the pressure washer.

[0037] Furthermore, the spray gun is provided with a trigger self-locking mechanism, which includes: a trigger; a movable block, the movable block being connected to the trigger and provided with a locking groove; a locking member, the locking member including a first end; when the trigger is pressed, the trigger is adapted to push the movable block toward the locking member until the first end engages in the locking groove, thereby locking the trigger in a pressed state. After the trigger of the spray gun is pulled, the movable block moves toward the locking member under the push of the trigger until the first end of the locking member engages in the locking groove of the movable block, fixing the positions of the movable block and the trigger, and locking the trigger in a pressed state without the need for manual continuous application of pressure to the trigger. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a diagram of the assembled state of the pressure washer after connection in one embodiment of the present utility model;

[0039] Figure 2 This is a structural diagram of the cleaning machine body in one embodiment of the present utility model;

[0040] Figure 3 and Figure 4 This is a schematic structural diagram of a water tank in one embodiment of the present utility model;

[0041] Figure 5 This is a structural diagram of a cover body in one embodiment of the present utility model;

[0042] Figure 6 This is an enlarged cross-sectional structural diagram of the buckle connection between the water tank and the cleaning machine body in one embodiment of the utility model;

[0043] Figure 7 This is an enlarged cross-sectional structural diagram of the snap connection between the water tank and the cover body in one embodiment of the utility model;

[0044] Figure 8 This is a schematic cross-sectional view of the connection between the water outlet structure and the water inlet structure in one embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of the exploded structure of the water outlet valve in one embodiment of the present utility model;

[0046] Figure 10 This is a structural diagram of a sealing member in one embodiment of the present utility model;

[0047] Figure 11 This is a schematic structural diagram of a spray gun in one embodiment of the present invention;

[0048] Figure 12 yes Figure 11 Schematic diagram of the internal structure of the spray gun after removing the outer shell. DETAILED DESCRIPTION

[0049] As mentioned in the background, pressure washers are widely used in daily life. Current pressure washers typically require an external water source, connecting tap water and the machine via a pipe, for proper operation. However, if the cleaning location lacks a water source such as tap water, the machine may be unable to operate due to the limited length of the pipe. Furthermore, if water is collected using a bucket or other similar tool, the bucket and machine must be stored after cleaning, taking up considerable space.

[0050] In order to solve the above problems, an embodiment of the present invention provides a pressure washer, including a washer body, a water tank and a cover body, wherein the washer body and the water tank are detachably connected, and the water tank and the cover body are detachably connected. When the washer body is connected to the water tank, the water tank can supply water to the washer body. In the case of water shortage or no water, the washer body can still perform cleaning work using the water in the water tank. In the case of a water source such as tap water, the washer body can also work independently, thereby improving the adaptability of the pressure washer in different working environments. After the washer is finished working, the washer body and the water tank can be disassembled, the washer body can be stored in the accommodating cavity, and then the cover body can be closed to facilitate the storage and accommodation of the washer.

[0051] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0052] Figure 1 This is a diagram of the assembled state of the pressure washer after connection in one embodiment of the present utility model; Figure 2 This is a structural diagram of the cleaning machine body in one embodiment of the present utility model; Figure 3 and Figure 4 This is a schematic structural diagram of a water tank in one embodiment of the present utility model; Figure 5 It is a structural schematic diagram of a cover body in one embodiment of the present utility model.

[0053] Combined with reference Figures 1 to 5 The pressure washer includes: a cleaning machine body 10; a water tank 20, which is detachably connected to the cleaning machine body 10, and the water tank 20 includes a accommodating chamber 21. When the water tank 20 is separated from the cleaning machine body 10, the accommodating chamber 21 is suitable for accommodating the cleaning machine body 10, and when the water tank 20 is connected to the cleaning machine body 10, the water tank 20 is suitable for supplying water to the cleaning machine body 10; a cover body 30, which is detachably connected to the accommodating chamber 21.

[0054] In this embodiment, the cleaning machine body 10 can be used independently or connected to the water tank 20. After use, the cleaning machine body 10 can be placed in the accommodating cavity 21 for storage.

[0055] Specifically, in an environment where an external water source is available, the cleaning machine body 10 can be connected to a water source such as a tap via an external water pipe, and the cleaning machine body 10 can independently perform cleaning operations. When there is no water source at the cleaning site, the water tank 20 can be connected to the cleaning machine body 10, and the water tank 20 can be used to supply water to the cleaning machine body 10, and the water stored in the water tank 20 can be used for cleaning operations. The water tank 20 can also be used as a means of transporting water. When transporting water, the cover 30 can be connected to the water tank 20, and the open end of the receiving chamber 21 can be sealed to facilitate the transportation of water. After the cleaning operation is completed, the water tank 20 and the cover 30 are removed, and the receiving chamber 21 is opened. The receiving chamber 21 is suitable for accommodating the cleaning machine body 10. The opening end of the receiving chamber 21 is sized to accommodate the cleaning machine body 10. The cleaning machine body 10 and the water tank 20 are removed, and the cleaning machine body 10 is stored in the receiving chamber 21. The cover 30 is then replaced to complete the storage. This can reduce the overall space occupied by the pressure washer and facilitate storage for the user.

[0056] In this embodiment, the ratio of the volume of the water tank 20 to the volume of the cleaning machine body 10 is 8:5. Given the volume of the cleaning machine body 10, the water tank 20 needs to be able to accommodate the cleaning machine body 10 to the maximum extent while meeting the water consumption requirements in most usage scenarios, achieving a balance between miniaturization of the water tank 20 and meeting the water storage capacity requirements.

[0057] In this embodiment, a first handle 41 is provided on the cleaning machine body 10 , and both ends of the first handle 41 are rotatably connected to the cleaning machine body 10 .

[0058] In this embodiment, both ends of the first handle 41 are rotatably connected to the opening of the inner cavity of the cleaning machine body 10. When in use, the first handle 41 is lifted to facilitate the movement of the cleaning machine body 10; when not in use, the first handle 41 is lowered to facilitate the storage of the cleaning machine body 10.

[0059] In this embodiment, a second handle 42 is provided on the cover body 30 , and both ends of the second handle 42 are rotatably connected to the cover body 10 .

[0060] In this embodiment, a second handle 42 is provided on the cover 30 . When the cover 30 is connected to the water tank 20 and the water tank 20 is used to transport water, the second handle 42 facilitates the movement of the water tank 20 .

[0061] refer to Figure 5In this embodiment, a water inlet 31 is further provided on the cover body 30 . When the cover body 30 is connected to the water tank 20 , the water inlet 31 is communicated with the accommodating cavity 21 .

[0062] In this embodiment, a water filling port 31 is provided on the cover body 30. During the process of transporting water in the water tank 20, there is no need to open the cover body 30 to fill water into the water tank 20. Instead, water can be directly filled into the water tank 20 through the water filling port 31, which is convenient for staff to use.

[0063] In this embodiment, the cover body 30 is further provided with a water filling port cover 32, which is used to close the water filling port 31. After water is filled into the water tank 20 through the water filling port 31, the water filling port cover 32 is closed to close the water filling port 31, thereby preventing water in the water tank 20 from spilling during transportation, thereby improving water transportation efficiency.

[0064] In this embodiment, a sealing ring groove (not shown) is further provided at the bottom of the cover body 30 , and a cover body sealing ring (not shown) is provided in the sealing ring groove.

[0065] In this embodiment, the sealing ring groove is arranged around the bottom of the cover body 30, and a cover body sealing ring is arranged in the sealing ring groove. When the cover body 30 and the water tank 20 are connected, the cover body sealing ring further strengthens the sealing of the cover body 30 and the water tank 20 to prevent water in the accommodating cavity 21 from leaking to the outside.

[0066] The cover sealing ring is a rubber ring or a silicone ring with a certain elasticity, and an interference fit is adopted between the cover sealing ring and the sealing ring groove.

[0067] In this embodiment, when the cover body 30 is connected to the water tank 20, the cover body 30 is pressed toward the water tank 20, and the edge of the open end of the accommodating cavity 21 is engaged between the edge of the cover body 30 and the cover body sealing ring, and the edge of the open end of the accommodating cavity 21 is interference fit with the edge of the cover body 30 and the cover body sealing ring, thereby achieving a preliminary connection between the cover body 30 and the water tank 20.

[0068] In this embodiment, the cover 30 is further connected to the water tank 20 via a snap fastener to achieve a more secure connection between the two.

[0069] In this embodiment, the cleaning machine body 10 and the water tank 20 are also connected by snap-fit.

[0070] The following describes in detail the snap-fit ​​connection between the water tank 20 and the cleaning machine body 10 and the snap-fit ​​connection between the water tank 20 and the cover 30 .

[0071] Figure 6This is an enlarged cross-sectional structural diagram of the buckle connection between the water tank and the cleaning machine body in one embodiment of the present invention, combined with reference Figure 1 and Figure 6 The water tank 20 is provided with a first buckle 51, and the first buckle 51 is symmetrically arranged on the outer wall of the water tank 20; the cleaning machine body 10 is provided with a first slot 53, and the first slot 53 matches the first buckle 51.

[0072] In this embodiment, the number of the first clips 51 is two, and the first clips 51 are symmetrically arranged on the outer wall of the water tank 20. The number of the first card slots 53 is consistent with the number of the first clips 51, and the first card slots 53 are arranged on the outer wall of the cleaning machine body 10.

[0073] In other embodiments, the first buckles 51 may be provided on the four outer walls of the water tank 20 , and the first card slots 53 may be provided on the outer walls of the cleaning machine body 10 , respectively.

[0074] In this embodiment, when the water tank 20 is connected to the cleaning machine body 10, the cleaning machine body 10 is located below the water tank 20, the first clip 51 is arranged at the lower part of the water tank 20, and the first card slot 53 is arranged at the upper part of the cleaning machine body 10.

[0075] In this embodiment, the first buckle 51 includes a first buckle plate 511 and a first locking portion 512. The first buckle plate 511 can be rotatably connected to the water tank 20, and the first buckle plate 511 includes a first free end and a second free end. The first free end is close to the opening end of the accommodating cavity 21 of the water tank 20, and the second free end is away from the opening end of the accommodating cavity 21. The first locking portion 512 is arranged on the second free end. The first locking portion 512 is used to engage with the first card slot 53 so that the first buckle 51 can engage the water tank 20 and the cleaning machine body 10.

[0076] Figure 7 This is an enlarged cross-sectional structural diagram of the buckle connection between the water tank and the cover body in one embodiment of the present invention, combined with reference Figure 1 and Figure 7 The water tank 20 is provided with a second buckle 52 , and the second buckle 52 is symmetrically arranged on the outer wall of the water tank 20 ; the cover body 30 is provided with a second slot 54 , and the second slot 54 matches the second buckle 52 .

[0077] In this embodiment, the number of the second clips 52 is two, and the second clips 52 are symmetrically arranged on the outer wall of the water tank 20. The number of the second card slots 54 is consistent with the number of the second clips 52, and the second card slots 54 are arranged on the edge of the cover body 30.

[0078] In other embodiments, second buckles 52 may be provided on the four outer walls of the water tank 20 , and second slots 54 may be provided on the edge of the cover 30 .

[0079] In this embodiment, the second clip 52 and the first clip 51 are arranged on the same side of the water tank 20, that is, on the same outer wall, and the second clip 52 is located above the first clip 51. The second clip 52 is arranged on the upper part of the water tank 20.

[0080] In this embodiment, the second clip 52 includes a second clip plate 521 and a second locking portion 522, the second clip plate 521 can be rotatably connected to the water tank 20, and the second clip plate 521 includes a third free end and a fourth free end, the third free end is close to the opening end of the accommodating cavity 21 of the water tank 20, and the fourth free end is away from the opening end of the accommodating cavity 21, the second locking portion 522 is arranged on the third free end, and the second locking portion 522 is used to engage with the second card slot 54 so that the second clip 52 can engage the water tank 20 and the cover body 30.

[0081] Figure 8 This is a schematic cross-sectional view of the connection between the water outlet structure and the water inlet structure in one embodiment of the present invention; Figure 9 This is a schematic diagram of the exploded structure of the water outlet valve in one embodiment of the present utility model; Figure 10 It is a structural schematic diagram of a sealing member in one embodiment of the present invention.

[0082] Combined with reference Figure 2 and Figure 3 The pressure washer also includes: a water outlet structure 22, which is protruding from the bottom surface of the water tank 20; a water inlet structure 12, which is arranged on the cleaning machine body 10, and the water inlet structure 12 is connected to the water outlet structure 22 when the water tank 20 is connected to the cleaning machine body 10.

[0083] In this embodiment, the water inlet structure 12 and the water outlet structure 22 are used to enable the water tank 20 to supply water to the cleaning machine body 10 .

[0084] Combined with reference Figures 8 to 10 The water outlet structure includes a cover body 210 and a water outlet valve 220. The top of the water outlet valve 220 has a water inlet 321. The cover body 210 is arranged outside the water outlet valve 220, and there is a gap 311 between the cover body 210 and the bottom surface of the water tank 20. The gap 311 is connected to the water inlet 321.

[0085] In this embodiment, the bottom portion of the water tank 20 protrudes upward to form an installation cavity protruding from the bottom of the water tank 20. The water outlet valve 220 is installed in the installation cavity, and the water outlet valve 220 is sealed to the installation cavity.

[0086] In this embodiment, the cover body 210 is located in the accommodating cavity 21 and covers the outside of the installation cavity.

[0087] It should be noted that the top and bottom of the installation cavity are both open, the water outlet valve 220 is installed into the installation cavity from the bottom position, and the cover body 210 is covered on the water outlet valve 220 and the outside of the installation cavity from the top position.

[0088] Continue to refer Figures 8 to 10 The water outlet valve 220 also includes a shell 221 and a sealing member 222. The shell 221 is connected to the sealing member 222. The water inlet 321 is arranged at the top of the shell 221. The sealing member 222 is provided with a plurality of water inlet holes 223. The water inlet holes 223 are connected to the water inlet 321.

[0089] In this embodiment, a plurality of water inlet holes 223 are provided on the sealing member 222, and the water inlet holes 223 are arranged around the circumference of the sealing member 222, so that water entering the outlet valve 220 from the water inlet 321 can enter the sealing member 222 from all sides, thereby increasing the water inlet speed.

[0090] In this embodiment, the housing 221 and the sealing member 222 are connected and then installed as a whole in the installation cavity, and the water outlet valve 220 is connected to the installation cavity by bolts.

[0091] Continue to refer Figure 10 The sealing member 222 includes a valve hole 224 and a valve core 225 (see Figure 8 ), the valve hole 224 is arranged in the sealing member 222, the valve hole 224 is communicated with the water inlet hole 223, the bottom of the valve hole 224 has a water outlet 226, the valve core 225 is arranged in the valve hole 224, and the valve core 225 is suitable for abutting against the water outlet 226 to seal the water outlet 226.

[0092] Specifically, the sealing member 222 includes a connecting portion 227 and a column 228 arranged in the middle of the connecting portion 227. The connecting portion 227 and the column 228 are partially hollow to form the valve hole 224. The valve core 225 abuts against the water outlet 226 when the water tank 20 and the cleaning machine body 10 are not connected, thereby preventing the water in the water tank 20 from leaking through the water outlet valve 220.

[0093] In this embodiment, when the water tank 20 and the cleaning machine body 10 are not connected, the seal 222 serves to seal the bottom of the water tank 20. Since the seal 222 is provided, the bottom of the water tank 20 will not leak, and the water tank 20 can be used alone as a water storage container or a tool for transporting water.

[0094] In this embodiment, the sealing member 222 further includes a spring 229 . The spring 229 is fixed in the valve hole 224 and sleeved on the valve core 225 .

[0095] In this embodiment, the spring 229 is sleeved on the valve core 225. When the valve core 225 is subjected to external force, the compression amount of the spring 229 increases, so that the valve core 225 leaves the water outlet 226 to open the water outlet 226. In the absence of external force, under the elastic force of the spring 229, the valve core 225 abuts against the water outlet 226 to block the water outlet 226.

[0096] Continue to refer Figures 8 to 10 The water inlet structure includes a water inlet 110 and a ejector pin 120. The water inlet 110 is protrudingly arranged on the bottom surface of the cleaning machine body 10. The ejector pin 120 is arranged in the water inlet 110. When the water outlet structure 22 is connected to the water inlet structure 12, the water inlet 110 is connected to the sealing member 222. The ejector pin 120 pushes the valve core 225 to move along the axial direction of the valve hole 224 to open the water outlet 226.

[0097] Specifically, when the water outlet structure is connected to the water inlet structure, the water inlet 110 is connected to the connecting part 227 of the sealing member 222, and the top end of the ejector pin 120 contacts the bottom end of the valve core 225. Under the push of the ejector pin 120, the valve core 225 moves in a direction away from the water outlet 226, thereby releasing the water outlet 226.

[0098] In this embodiment, an interference fit connection is adopted between the water inlet 110 and the connecting portion 227. When the water tank 20 is placed on the cleaning machine body 10, the water tank 20 is pressed down to achieve automatic locking between the water outlet structure 22 and the water inlet structure 12.

[0099] refer to Figure 8 The cleaning machine body 10 further includes a pump, the pump including a first end and a second end opposite to each other, and the first end of the pump is connected to the water inlet 110 of the pump.

[0100] In this embodiment, the pump is used to provide power for water to enter the water inlet 110 .

[0101] In this embodiment, the pump is a diaphragm pump, which has the advantages of low cost and long service life.

[0102] refer to Figure 2 The cleaning machine body 10 further includes a spray gun 14 and a spring tube 16 , one end of the spring tube 16 is connected to the second end of the pump, and the other end of the spring tube 16 is connected to the spray gun 14 .

[0103] In this embodiment, a first receiving chamber (not marked) and a second receiving chamber (not marked) are provided in the cleaning machine body 10 . The first receiving chamber is used to receive the spray gun 14 , and the second receiving chamber is used to receive the spring tube 16 .

[0104] In this embodiment, the spring tube 16 can be extended when in use and can be retracted when not in use. The spray gun 14 and the spring tube 16 are stored in the cleaning machine body 10 when not in use.

[0105] In this embodiment, a first notch 23 is provided on the bottom edge of the water tank 20, and a second notch 17 is provided on the top edge of the cleaning machine body 10. When the water tank 20 is connected to the cleaning machine body 10, the first notch 23 and the second notch 17 are combined to form a through hole for the spring tube 16 to pass through.

[0106] In this embodiment, the first notch 23 and the second notch 17 can also serve as positioning marks. When assembling the water tank 20 and the cleaning machine body 10, the assembly direction of the water tank 20 and the cleaning machine body 10 can be quickly and accurately determined by corresponding positions of the first notch 23 and the second notch 17.

[0107] Figure 11 This is a schematic structural diagram of a spray gun in one embodiment of the present invention; Figure 12 yes Figure 11 Schematic diagram of the internal structure of the spray gun after removing the outer shell.

[0108] Combined with reference Figure 11 and Figure 12 The spray gun 14 is provided with a trigger self-locking mechanism, which includes: a trigger 141; a movable block 142, which is connected to the trigger 141 and is provided with a locking groove 143; a locking piece 144, which includes a first end 145; when the trigger 141 is pressed, the trigger 141 is suitable for pushing the movable block 142 to move toward the locking piece 144 until the first end 145 is engaged in the locking groove 143, so that the trigger 141 is locked in the pressed state.

[0109] In this embodiment, limiting members 146 are symmetrically arranged on both sides of the movable block 142, and the limiting members 146 include a first arc surface 147 and a second arc surface 148. The locking groove 143 is arranged on the limiting member 146 and is located between the first arc surface 147 and the second arc surface 148; the first end portion 145 of the locking member 144 is symmetrically arranged above the limiting member 146 and abuts against the first arc surface 147, and the first end portion 145 of the locking member 144 is suitable for sliding along the first arc surface 147 to engage into the locking groove 143, and is suitable for sliding along the second arc surface 148 to disengage from the locking groove 143.

[0110] In this embodiment, the locking member 144 is in a U-shaped structure, and the first end portion 145 includes two ends at the opening of the U-shaped structure, and the two ends at the opening of the U-shaped structure respectively abut against two symmetrically arranged limiting members 146.

[0111] In this embodiment, when using the spray gun 14, the trigger 141 is pressed, and the trigger 141 pushes the movable block 142 to move toward the locking member 144. The first end 145 of the locking member 144 slides along the first arc surface 147 on the limit member 146 until it is engaged in the locking groove 143, keeping the trigger 141 in the pressed state; when unlocking is required, the trigger 141 is pressed again to disengage the first end 145 of the locking member 144 from the locking groove 143, and then the first end 145 slides along the second arc surface 148 and returns to the initial position, completing the locking and unlocking of the trigger 141.

[0112] In this embodiment, the curvature of the first arc surface 147 is greater than the curvature of the second arc surface 148 , so that the first end portion 145 can smoothly slide from the second arc surface 148 to the initial position when the trigger 141 is unlocked.

[0113] Combined with reference Figures 1 to 3 A limiting rib 211 is provided on the side wall of the accommodating cavity 21 . When the cleaning machine body 10 is placed in the accommodating cavity 21 , the limiting rib 211 is used to limit the movement of the cleaning machine body 10 in the accommodating cavity 21 .

[0114] A limiting groove 15 is provided on the outer side wall of the cleaning machine body 10 . When the cleaning machine body 10 is placed in the accommodating cavity 21 , the limiting groove 15 is engaged with the limiting rib 211 .

[0115] In this embodiment, the limiting rib 211 is symmetrically arranged on one group of oppositely arranged side walls of the accommodating cavity 21, and the limiting rib 211 protrudes from the side wall surface of the accommodating cavity 21; accordingly, the limiting groove 15 is symmetrically arranged on one group of oppositely arranged outer side walls of the cleaning machine body 10.

[0116] In other embodiments, the limiting ribs 211 may also be provided on each side wall of the accommodating cavity 21 , and correspondingly, the limiting grooves 15 may be provided on each outer side wall of the cleaning machine body 10 .

[0117] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A pressure washer, characterized in that: include: Cleaning machine body; a water tank, the water tank being detachably connected to the cleaning machine body, the water tank comprising a receiving cavity, the receiving cavity being adapted to receive the cleaning machine body when the water tank is separated from the cleaning machine body, and being adapted to supply water to the cleaning machine body when the water tank is connected to the cleaning machine body; A cover body is detachably connected to the water tank.

2. The pressure washer according to claim 1, wherein: Also includes: A water outlet structure, the water outlet structure is arranged at the bottom of the water tank; a water inlet structure, the water inlet structure is arranged on the cleaning machine body, and the water inlet structure is connected to the water outlet structure when the water tank is connected to the cleaning machine body.

3. The pressure washer according to claim 2, wherein: The bottom of the water tank has an installation cavity protruding toward the accommodating cavity, and the water outlet structure includes: a cover body, which is located in the accommodating cavity and is arranged outside the installation cavity, and a gap is formed between the cover body and the bottom of the water tank; a water outlet valve, which is installed in the installation cavity, and a water inlet is formed on the top of the water outlet valve, and the water inlet is connected to the gap.

4. The pressure washer according to claim 3, wherein: The water outlet valve further comprises a shell and a sealing member, wherein the shell is connected to the sealing member, the water inlet is arranged at the top end of the shell, and the sealing member is provided with a plurality of water inlet holes, which are communicated with the water inlet.

5. The pressure washer according to claim 4, wherein: The sealing component includes a valve hole and a valve core. The valve hole is arranged in the sealing component, the valve hole is communicated with the water inlet hole, the bottom of the valve hole has a water outlet, the valve core is arranged in the valve hole, and the valve core abuts against the water outlet to seal the water outlet.

6. The pressure washer according to claim 5, wherein: The water inlet structure includes a water inlet and a thimble. The water inlet is protruding on the bottom surface of the cleaning machine body, and the thimble is set in the water inlet. When the water tank is connected to the cleaning machine body, the water inlet is connected to the sealing component, and the thimble pushes the valve core to move along the axial direction of the valve hole to open the water outlet.

7. The pressure washer according to claim 6, wherein: The water inlet is interference connected to the sealing member.

8. The pressure washer according to claim 2, wherein: The cleaning machine body further includes a pump, wherein the pump includes a first end and a second end opposite to each other, and the first end of the pump is connected to the water inlet structure.

9. The pressure washer according to claim 8, wherein: The cleaning machine body further comprises a spray gun and a spring tube, one end of the spring tube is connected to the second end of the pump, and the other end of the spring tube is connected to the spray gun.

10. The pressure washer according to claim 9, wherein: A first receiving chamber and a second receiving chamber are provided in the cleaning machine body. The first receiving chamber is used to receive the spray gun, and the second receiving chamber is used to receive the spring tube.

11. The pressure washer according to claim 9, wherein: The spray gun is provided with a trigger self-locking mechanism, which includes: a trigger; a movable block, which is connected to the trigger and is provided with a locking groove; a locking piece, which includes a first end; when the trigger is pressed, the trigger is suitable for pushing the movable block toward the locking piece until the first end is engaged in the locking groove, so that the trigger is locked in the pressed state.

12. The pressure washer of claim 11, wherein: Limiting members are symmetrically arranged on both sides of the movable block, and the limiting members include a first arc surface and a second arc surface. The locking groove is arranged on the limiting member and is located between the first arc surface and the second arc surface; the first end of the locking member is symmetrically arranged above the limiting member and abuts against the first arc surface, and the first end of the locking member is suitable for sliding along the first arc surface to engage in the locking groove, and is suitable for sliding along the second arc surface to disengage from the locking groove.

13. The pressure washer of claim 12, wherein: The curvature of the first arc surface is greater than the curvature of the second arc surface.

14. The pressure washer of claim 9, wherein: A first notch is provided at the bottom edge of the water tank, and a second notch is provided at the top edge of the cleaning machine body. When the water tank is connected to the cleaning machine body, the first notch and the second notch together form a through hole for the spring tube to pass through.

15. The pressure washer of claim 1, wherein: The water tank is provided with a first buckle, which is symmetrically arranged on the outer side wall of the water tank; the cleaning machine body is provided with a first slot, which matches the first buckle.

16. The pressure washer of claim 15, wherein: The water tank is provided with a second buckle, which is symmetrically arranged on the outer side wall of the water tank; the cover body is provided with a second slot, which matches the second buckle.

17. The pressure washer of claim 16, wherein: The first buckle and the second buckle are arranged on the same side of the water tank.

18. The pressure washer of claim 1, wherein: Limiting ribs are provided on the side walls of the accommodating cavity. When the cleaning machine body is placed in the accommodating cavity, the limiting ribs are used to limit the movement of the cleaning machine body.

19. The pressure washer of claim 18, wherein: A limiting groove is provided on the outer side wall of the cleaning machine body. When the cleaning machine body is placed in the accommodating cavity, the limiting groove is engaged with the limiting rib.

20. The pressure washer of claim 1, wherein: A sealing ring groove is provided at the bottom of the cover body, and a cover body sealing ring is provided in the sealing ring groove.

21. The pressure washer of claim 20, wherein: The cover sealing ring is a rubber ring or a silicone ring.

22. The pressure washer of claim 20, wherein: When the cover is connected to the water tank, the edge of the open end of the water tank is clamped between the edge of the cover and the cover sealing ring, and the edge of the open end of the water tank is interference fit with the edge of the cover and the cover sealing ring.

23. The pressure washer of claim 1, wherein: The cover body is provided with a water filling port, and when the cover body is connected to the water tank, the water filling port is communicated with the accommodating cavity.

24. The pressure washer of claim 1, wherein: The cover body is also provided with a water inlet cover, and the water inlet cover is used to seal the water inlet.

25. The pressure washer of claim 1, wherein: The cleaning machine body is further provided with a first handle, and both ends of the first handle are rotatably connected to the cleaning machine body respectively.

26. The pressure washer of claim 1, wherein: The cover body is further provided with a second handle, and both ends of the second handle are rotatably connected to the cover body respectively.

27. The pressure washer of claim 1, wherein: The ratio between the volume of the water tank and the volume of the cleaning machine body is 8:5.

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