Pressure cleaning machine

Abstract

The present disclosure provides a pressure cleaning machine, including: a cleaning machine body (10); a water tank (20) detachably connected with the cleaning machine body and including a receiving chamber (21), wherein when the water tank is disconnected with the cleaning machine body, the receiving chamber is configured to receive the cleaning machine body, and when the water tank is connected with the cleaning machine body, the water tank is configured to supply water to the cleaning machine body; and a cover (30) detachably connected with the water tank. The pressure cleaning machine according to the present disclosure can be applied in an environment of no direct water source, and is convenient to store after use.

Description

PRESSURE CLEANING MACHINETECHNICAL FIELD

[0001] The present disclosure relates to the field of cleaning technology, and more particularly to a pressure cleaning machine.BACKGROUND

[0002] A pressure cleaning machine can flush a surface of an object by a water flow pressurized by a pump driven by a power device, and wash away dirt on the surface of the object. The pressure cleaning machine is widely used in various fields of life, such as cleaning floors, and cleaning car bodies. Compared with traditional manual cleaning, the pressure cleaning machine can greatly reduce manpower requirements, save operator time, and have better cleaning effects.

[0003] However, current pressure cleaning machine has problems such as inconvenient water intake, inability to use when there is no direct water source, and inconvenience in carrying and storage. Therefore, there is an urgent need to provide a pressure cleaning machine which can improve a convenience of using the pressure cleaning machine.SUMMARY

[0004] An objective of the present disclosure is to provide a pressure cleaning machine, which can still work normally in an environment of no direct water supply, and is convenient to store after use.

[0005] An embodiment of the present disclosure provides a pressure cleaning machine, including: a cleaning machine body; a water tank detachably connected with the cleaning machine body and including a receiving chamber, wherein when the water tank is disconnected with the cleaning machine body, the receiving chamber is configured to receive the cleaning machine body, and when the water tank is connected with the cleaning machine body, the water tank is configured to supply - i -water to the cleaning machine body; and a cover detachably connected with the water tank.

[0006] Optionally, the pressure cleaning machine further includes: a water outlet structure arranged on a bottom of the water tank; and a water inlet structure arranged on the cleaning machine body. The water inlet structure is connected with the water outlet structure when the water tank is connected with the cleaning machine body.

[0007] Optionally, an installing chamber protruding towards the receiving chamber is provided on the bottom of the water tank, and the water outlet structure includes a cover body and a water outlet valve. The cover body is arranged in the receiving chamber and covers outside the installing chamber, and a gap exists between the cover body and the bottom of the water tank. The water outlet valve is installed in the installing chamber, and a water inlet is provided on a top of the water outlet valve and communicated with the gap.

[0008] Optionally, the water outlet valve further includes a housing and a sealing component, and the housing is connected with the sealing component. The water inlet is provided on a top of the housing, and the sealing component is provided with a plurality of water inlet holes communicated with the water inlet.

[0009] Optionally, the sealing component includes a valve hole and a valve core arranged in the valve hole, and the valve hole is arranged in the sealing component and communicated with the plurality of water inlet holes. A water outlet is provided on a bottom of the valve hole, and the valve core is configured to abut against the water outlet to block the water outlet.

[0010] Optionally, the water inlet structure includes a water receiving port protruding from a bottom surface of the cleaning machine body and a top pin arranged in the water receiving port. When the water tank is connected with the cleaning machine body, the water receiving port is connected with the sealing component, and the top pin pushes the valve core to move along an axial direction of the valve hole to openthe water outlet.

[0011] Optionally, the water inlet is connected with the sealing component by an interference fit.

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

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

[0014] Optionally, the cleaning machine body is provided with a first accommodating chamber and a second accommodating chamber. The first accommodating chamber is configured to accommodate the spray gun, and the second accommodating chamber is configured to accommodate the spring tube.

[0015] Optionally, the spray gun is provided with a trigger self-locking device, and the trigger self-locking device includes a trigger, a movable block connected with the trigger and having a locking slot, and a locking component having a first end. When the trigger is pressed, the trigger is configured to push the movable block to move towards the locking component until the first end engages with the locking slot so as to lock the trigger in a pressed state.

[0016] Optionally, the movable block is provided with a limiting component having a first curved surface and a second curved surface, and the locking slot is arranged on the limiting component and between the first curved surface and the second curved surface. A first end of the locking component is arranged above the limiting component and buts against the first curved surface. The first end of the locking component is configured to slide along the first curved surface to engage with the locking slot, and is configured to slide along the second curved surface to disengage from the locking slot.

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

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

[0019] Optionally, the water tank is provided with a first locking buckle on an outer wall of the water tank, and the cleaning machine body is provided with a first locking groove for matching with the first locking buckle.

[0020] Optionally, the water tank is provided with a second locking buckle on the outer wall of the water tank, and the cover is provided with a second locking groove for matching with the second locking buckle.

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

[0022] Optionally, a limiting rib is provided on a side wall of the receiving chamber. When the cleaning machine body is placed in the receiving chamber, the limiting rib is configured to restrict a movement of the cleaning machine body.

[0023] Optionally, a limiting groove is provided on an outer wall of the cleaning machine body. When the cleaning machine body is placed in the receiving chamber, the limiting groove is engaged with the limiting rib.

[0024] Optionally, a sealing ring groove is provided on a bottom of the cover, and a cover 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 is connected with the water tank, an edge of an opening end of the water tank is clamped between an edge of the cover and the cover sealing ring, and the edge of the opening end of the water tank is in interference fitwith the edge of the cover and the cover sealing ring.

[0027] Optionally, the cover is provided with a water injecting port. When the cover is connected with the water tank, the water injecting port is communicated with the receiving chamber.

[0028] Optionally, the cover is further provided with a water injecting port cover, and the water injecting port cover is configured to seal the water injecting port.

[0029] Optionally, the cleaning machine body is provided with a first handle, and two ends of the first handle are respectively rotatably connected with the cleaning machine body.

[0030] Optionally, the cover is further provided with a second handle, and two ends of the second handle are respectively rotatably connected with the cover.

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

[0032] Compared with conventional technology, the embodiments of the present disclosure have following advantages.

[0033] In the pressure cleaning machine according to the embodiments of the present disclosure, when there is a water source, the cleaning machine body can be matched with a self-suction tube and independently used for cleaning work, and when there is no direct water source, the water tank is connected with the cleaning machine body, and the water tank can supply water to the cleaning machine body to complete the cleaning work. Moreover, when the cleaning machine is not working, the cleaning machine body and the water tank can be disassembled, and the cleaning machine body can be stored in the receiving chamber of the water tank, and the cover covers the receiving chamber, which can reduce space occupied by the cleaning machine and facilitate user storage.

[0034] Furthermore, the pressure cleaning machine further includes a water outletstructure arranged on a bottom of the water tank; and a water inlet structure arranged on the cleaning machine body. The water inlet structure is connected with the water outlet structure when the water tank is connected with the cleaning machine body. With the water outlet structure and the water inlet structure, when the water tank is connected with the cleaning machine body, water can be suppled from the water tank to the cleaning machine body through the water outlet structure and the water inlet structure.

[0035] Furthermore, the sealing component includes a valve hole and a valve core arranged in the valve hole, and the valve hole is arranged in the sealing component and communicated with the plurality of water inlet holes. A water outlet is provided on a bottom of the valve hole, and the valve core is configured to abut against the water outlet to block the water outlet. When the sealing component of the water outlet structure is not subjected to an external force, the valve core abuts against the water outlet to seal the water outlet. Therefore, when the water tank is disassembled from the cleaning machine body, the bottom of the water tank will not leak water, 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 accommodating chamber and a second accommodating chamber. The first accommodating chamber is configured to accommodate the spray gun, and the second accommodating chamber is configured to accommodate the spring tube. When the cleaning machine body is not working, the spring tube can be contracted, and the spray gun and the spring tube can be stored in the cleaning machine body, which can make full use of a space of the cleaning machine body and reduce an overall space occupied by the pressure cleaning machine.

[0037] Furthermore, the spray gun is provided with a trigger self-locking device, and the trigger self-locking device includes a trigger, a movable block connected with the trigger and having a locking slot and a locking component having a first end. When the trigger is pressed, the trigger is configured to push the movable block to movetowards the locking component until the first end engages with the locking slot so as to lock the trigger in a pressed state. After pulling the trigger of the spray gun, the movable block moves towards the locking component under the push of the trigger until the first end of the locking component engages with the locking slot of the movable block so as to fix the movable block and the trigger, so that the trigger is locked in the pressed state without the need for the user to continuously press the trigger.BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG. 1 is an assembled state view of a pressure cleaning machine according to an embodiment of the present disclosure;

[0039] FIG. 2 is a schematic structural view of a cleaning machine body according to an embodiment of the present disclosure;

[0040] FIGS. 3 and 4 are schematic structural views of a water tank according to an embodiment of the present disclosure;

[0041] FIG. 5 is a schematic structural view of a cover according to an embodiment of the present disclosure;

[0042] FIG. 6 is a schematic enlarged sectional view of a locking connection between the water tank and the cleaning machine body according to an embodiment of the present disclosure;

[0043] FIG. 7 is a schematic enlarged sectional view of a locking connection between the water tank and the cover according to an embodiment of the present disclosure;

[0044] FIG. 8 is a schematic enlarged sectional view of a connection between a water outlet structure and a water inlet structure according to an embodiment of the present disclosure;

[0045] FIG. 9 is a schematic exploded view of a water outlet valve according to anembodiment of the present disclosure;

[0046] FIG. 10 is a schematic structural view of a sealing component according to an embodiment of the present disclosure;

[0047] FIG. 11 is a schematic structural view of a spray gun according to an embodiment of the present disclosure; and

[0048] FIG. 12 is a schematic internal structural view of the spray gun of FIG. 11 after removing an outer housing.DETAILED DESCRIPTION

[0049] As mentioned above, the pressure cleaning machine has been widely used in people's daily lives. Currently, when using the pressure cleaning machine, an external water source is usually required to connect tap water and the pressure cleaning machine through a water pipe for normal operation. However, if there is no direct water source such as tap water in a cleaning area, due to a length of the water pipe, the pressure cleaning machine may not be able to work due to a lack of water. If a water bucket or other tools are used to supply water, there will be daily storage problems for the water bucket and the pressure cleaning machine after cleaning work is completed, which will occupy a large amount of space.

[0050] In order to solve above problems, an embodiment of the present disclosure provides a pressure cleaning machine. The pressure cleaning machine includes a cleaning machine body, a water tank and a cover. The cleaning machine body and the water tank are detachably connected, and the water tank and the cover are detachably connected. When the cleaning machine body is connected with the water tank, the water tank can supply water to the cleaning machine body. In an environment of no direct water source, the cleaning machine body can still perform cleaning work using the water in the water tank. In the presence of water source such as tap water, the cleaning machine body can also work independently, which can improve an adaptability of the pressure cleaning machine in different workingenvironments. After the pressure cleaning machine completes cleaning work, the cleaning machine body and the water tank of the pressure cleaning machine can be disassembled, and the cleaning machine body can be stored in the receiving chamber, and then the cover covers the receiving chamber for easy storage of the pressure cleaning machine.

[0051] In order to make above objectives, features and advantages of the present disclosure more obvious and understandable, specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0052] FIG. 1 is an assembled state view of a pressure cleaning machine according to an embodiment of the present disclosure. FIG. 2 is a schematic structural view of a cleaning machine body according to an embodiment of the present disclosure. FIGS.3 and 4 are schematic structural views of a water tank according to an embodiment of the present disclosure. FIG. 5 is a schematic structural view of a cover according to an embodiment of the present disclosure.

[0053] Referring to FIGS. 1 to 5, the pressure cleaning machine includes a cleaning machine body 10, a water tank 20 and a cover 30. The water tank 20 is detachably connected with the cleaning machine body 10. The water tank 20 includes a receiving chamber 21. When the water tank 20 is disconnected with the cleaning machine body 10, the receiving chamber 21 is configured to accommodate the cleaning machine body 10. When the water tank 20 is connected with the cleaning machine body 10, the water tank 20 is configured to supply water to the cleaning machine body 10. The cover 30 is detachably connected with the receiving chamber 21.

[0054] In some embodiments, the cleaning machine body 10 can be used independently or connected with the water tank 20 for use. After use, the cleaning machine body 10 can be placed in the receiving chamber 21 for storage.

[0055] Specifically, when a water source is connected, the cleaning machine body10 can be connected with the water source such as tap water through an external water pipe, and the cleaning machine body 10 can perform cleaning work independently. When there is no direct water source in the cleaning area, the water tank 20 can be connected with the cleaning machine body 10. The water tank 20 supplies water to the cleaning machine body 10 and the water in the water tank 20 is used for cleaning work. The water tank 20 can also be used as a tool for transporting water. When transporting water, the cover 30 can be connected with the water tank 20, and an opening end of the receiving chamber 21 can be sealed to facilitate the transportation of water. After the cleaning work is completed, the water tank 20 and the cover 30 are disassembled, and the receiving chamber 21 is opened. The receiving chamber 21 is configured to accommodate the cleaning machine body 10. A size of the opening end of the receiving chamber 21 is configured to accommodate the cleaning machine body 10. When the cleaning machine body 10 is disassembled with the water tank 20, the cleaning machine body 10 is placed into the receiving chamber 21, and then the cover 30 covers the receiving chamber 21 again to complete the storage, which can reduce an overall space occupied by the pressure cleaning machine and facilitate user storage.

[0056] In some embodiments, a ratio between a volume of the water tank 20 and a volume of the cleaning machine body 10 is 8:5. In the case where the volume of the cleaning machine body 10 is determined, the water tank 20 needs to achieve an accurate storage of the cleaning machine body 10 and meet a water consumption requirement in most usage scenarios, achieving a balance between a miniaturization of the water tank 20 and a requirement of water storage.

[0057] In some embodiments, the cleaning machine body 10 is provided with a first handle 41, and two ends of the first handle 41 are respectively rotatably connected with the cleaning machine body 10.

[0058] In some embodiments, the two ends of the first handle 41 are rotatably connected at an opening of an inner cavity of the cleaning machine body 10. When in - io -use, the first handle 41 is lifted up to facilitate a movement of the cleaning machine body 10, and when not in use, the first handle 41 is lifted down to facilitate a storage of the cleaning machine body 10.

[0059] In some embodiments, the cover 30 is provided with a second handle 42, and two ends of the second handle 42 are respectively rotatably connected with the cover 10.

[0060] In some embodiments, the cover 30 is provided with the second handle 42. When the cover 30 is connected with the water tank 20 for transporting water, the second handle 42 facilitates a movement of the water tank 20.

[0061] Referring to FIG. 5, in some embodiments, the cover 30 is also provided with a water injecting port 31. When the cover 30 is connected with the water tank 20, the water injecting port 31 is communicated with the receiving chamber 21.

[0062] In some embodiments, the cover 30 is provided with the water injecting port 31. During transporting water by the water tank 20, it is not necessary to open the cover 30 to inject water into the water tank 20. Instead, water can be directly injected into the water tank 20 through the water injecting port 31, which is convenient for users to use.

[0063] In some embodiments, the cover 30 is also provided with a water injecting port cover 32. The water injecting port cover 32 is configured to close the water injecting port 31. After injecting the water into the water tank 20 through the water injecting port 31 , the water injecting port cover 32 is closed to seal the water injecting port 31, which can prevent the water in the water tank 20 from spilling out during transportation and improve an efficiency of water transportation.

[0064] In some embodiments, a sealing ring groove (not shown) is also provided on a bottom of the cover 30, and a cover sealing ring (not shown) is provided in the sealing ring groove.

[0065] In some embodiments, the sealing ring groove is arranged around the bottom - n -of the cover 30, and the cover sealing ring is arranged in the sealing ring groove. When the cover 30 is connected with the water tank 20, the cover sealing ring further strengthens the sealing between the cover 30 and the water tank 20, which can prevent water leakage from the receiving chamber 21 to an outside.

[0066] The cover sealing ring may be a rubber ring or a silicone ring with certain elasticity, and the cover sealing ring and the sealing ring groove are connected by an interference fit.

[0067] In some embodiments, when the cover 30 is connected with the water tank 20, the cover 30 is pressed towards the water tank 20, and an edge of the opening end of the receiving chamber 21 is clamped between an edge of the cover 30 and the cover sealing ring. The edge of the opening end of the receiving chamber 21 is in interference fit with the edge of the cover 30 and the cover sealing ring, which can achieve an initial connection between the cover 30 and the water tank 20.

[0068] In some embodiments, the cover 30 is further connected with the water tank 20 through a locking connection to achieve a more secure connection between the cover 30 and the water tank 20.

[0069] In some embodiments, the cleaning machine body 10 and the water tank 20 are also connected by a locking connection.

[0070] The following will explain the locking connection between the water tank 20 and the cleaning machine body 10 and the locking connection between the water tank 20 and the cover 30.

[0071] FIG. 6 is a schematic enlarged sectional view of a locking connection between the water tank and the cleaning machine body according to an embodiment of the present disclosure. Referring to FIGS. 1 and 6, the water tank 20 is provided with first locking buckles 51. The first locking buckles 51 are symmetrically arranged on an outer wall of the water tank 20. The cleaning machine body 10 is provided with first locking grooves 53 configured to match with the first locking buckle 51.

[0072] In some embodiments, the number of the first locking buckles 51 is two, and the first locking buckles 51 are symmetrically arranged on the outer wall of the water tank 20. The number of the first locking grooves 53 is the same as the number of the first locking buckles 51 , and the first locking grooves 53 are arranged on an outer wall of the cleaning machine body 10.

[0073] In other embodiments, the first locking buckles 51 may also be provided on all four outer walls of the water tank 20, and the first locking grooves 53 may be correspondingly provided on the outer walls of the cleaning machine body 10.

[0074] In some embodiments, when the water tank 20 is connected with the cleaning machine body 10, the cleaning machine body 10 is located below the water tank 20, the first locking buckles 51 are located at a lower part of the water tank 20, and the first locking grooves 53 are located at an upper part of the cleaning machine body 10.

[0075] In some embodiments, each first locking buckle 51 includes a first locking plate 511 and a first locking portion 512. The first locking plate 511 is rotatably connected with the water tank 20, and the first locking plate 511 includes a first free end and a second free end. The first free end is close to the opening end of the receiving chamber 21 of the water tank 20, and the second free end is far away from the opening end of the receiving chamber 21. The first locking portion 512 is arranged on the second free end, and configured to lock with the first locking groove 53, so that the first locking buckle 51 can lock the water tank 20 with the cleaning machine body 10.

[0076] FIG. 7 is a schematic enlarged sectional view of a locking connection between the water tank and the cover according to an embodiment of the present disclosure. Referring to FIGS. 1 and 7, the water tank 20 is provided with second locking buckles 52. The second locking buckles 52 are symmetrically arranged on the outer wall of the water tank 20. The cover 30 is provided with second locking grooves 54 configured to match with the second locking buckles 52.

[0077] In some embodiments, the number of the second locking buckles 52 is two, and the second locking buckles 52 are symmetrically arranged on the outer wall of the water tank 20. The number of the second locking grooves 54 is the same as the number of second locking buckles 52, and the second locking grooves 54 are arranged at the edge of the cover 30.

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

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

[0080] In some embodiments, each second locking buckle 52 includes a second locking plate 521 and a second locking portion 522. The second locking plate 521 is rotatably connected with the water tank 20, and the second locking plate 521 includes a third free end and a fourth free end. The third free end is close to the opening end of the receiving chamber 21 of the water tank 20, and the fourth free end is far away from the opening end of the receiving chamber 21. The second locking portion 522 is provided on the third free end, and configured to lock with the second locking groove 54 so that the second locking buckle 52 can lock the water tank 20 with the cover 30.

[0081] FIG. 8 is a schematic enlarged sectional view of a connection between a water outlet structure and a water inlet structure according to an embodiment of the present disclosure. FIG. 9 is a schematic exploded view of a water outlet valve according to an embodiment of the present disclosure. FIG. 10 is a schematic structural view of a sealing component according to an embodiment of the present disclosure.

[0082] Referring to FIGS. 2 and 3, the pressure cleaning machine further includes a water outlet structure 22 and a water inlet structure 12. The water outlet structure 22 protrudes from a bottom surface of the water tank 20, and the water inlet structure 12 is arranged on the cleaning machine body 10. The water inlet structure 12 is connected with the water outlet structure 22 when the water tank 20 is connected with the cleaning machine body 10.

[0083] In some embodiments, the water inlet structure 12 and the water outlet structure 22 are configured to supply water from the water tank 20 to the cleaning machine body 10.

[0084] Referring to FIGS. 8 to 10, the water outlet structure 22 includes a cover body 210 and a water outlet valve 220. A water inlet 321 is provided on a top of the water outlet valve 220, and the cover body 210 covers outside the water outlet valve 220. A gap 311 exists between the cover body 210 and the bottom surface of the water tank 20, and the gap 311 is communicated with the water inlet 321.

[0085] In some embodiments, a portion of a bottom of the water tank 20 protrudes upward to form an installing chamber protruding from the bottom of the water tank 20. The water outlet valve 220 is installed in the installing chamber, and the water outlet valve 220 is sealingly connected with the installing chamber.

[0086] In some embodiments, the cover body 210 is arranged in the receiving chamber 21 and covers outside the installing chamber.

[0087] It should be noted that a top and a bottom of the installing chamber are both opened. The water outlet valve 210 is installed into the installing chamber from the bottom of the installing chamber, and the cover body 210 covers outside the water outlet valve 220 and the installing chamber from the top of the installing chamber.

[0088] Referring to FIGS. 8 to 10, the water outlet valve 220 further includes a housing 221 and a sealing component 222, and the housing 221 is connected with the sealing component 222. The water inlet 321 is provided on a top of the housing 221 ,and the sealing component 222 is provided with a plurality of water inlet holes 223 communicated with the water inlet 321.

[0089] In some embodiments, the sealing component 222 is provided with the plurality of water inlet holes 223, and the plurality of water inlet holes 223 are arranged around the sealing component 222 in a circumferential direction, which can facilitate the water entering the water outlet valve 220 from the water inlet 321 to enter the sealing component 222 from all sides and improve water inlet speed.

[0090] In some embodiments, the housing 221 and the sealing component 222 after connected are installed as a whole in the installing chamber, and the water outlet valve 220 is connected with the installing chamber through bolts.

[0091] Still referring to FIG. 10, the sealing component 222 includes a valve hole 224 and a valve core 225 (see FIG. 8). The valve hole 224 is arranged in the sealing component 222 and communicated with the plurality of water inlet holes 223. A water outlet 226 is provided on a bottom of the valve hole 224, and the valve core 225 is arranged in the valve hole 224. The valve core 225 is configured to abut against the water outlet 226 to block the water outlet 226.

[0092] Specifically, the sealing component 222 includes a connecting portion 227 and a post 228 arranged in the middle of the connecting portion 227. The connecting portion 227 and the post 228 are partially hollow to form the valve hole 224. The valve core 225 is configured to abut against the water outlet 226 when the water tank 20 and the cleaning machine body 10 are not connected, which can prevent the water in the water tank 20 from leaking through the water outlet valve 220.

[0093] In some embodiments, when the water tank 20 and the cleaning machine body 10 are not connected, the sealing component 222 can seal the bottom of the water tank 20. Due to the arrangement of the sealing component 222, the water cannot leak from the bottom of the water tank 20, and the water tank 20 can be separately used as a water storage container or a tool for delivering water.

[0094] In some embodiments, the sealing component 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 some embodiments, the spring 229 is sleeved on the valve core 225. When the valve core 225 is subjected to an external force, a compression amount of the spring 229 increases, which causes the valve core 225 to separate from the water outlet 226 to open the water outlet 226. Without the external force, under an elastic force of the spring 229, the valve core 225 is pressed against the water outlet 226 to block the water outlet 226.

[0096] Still referring to FIGS. 8 to 10, the water inlet structure 12 includes a water receiving port 110 and a top pin 120. The water receiving port 110 protrudes from a bottom surface of the cleaning machine body 10, and the top pin 120 is arranged in the water receiving port 110. When the water outlet structure 22 is connected with the water inlet structure 12, the water receiving port 110 is connected with the sealing component 222, and the top pin 120 pushes the valve core 225 to move in an axial direction of the valve hole 224 to open the water outlet 226.

[0097] Specifically, when the water outlet structure 22 is connected with the water inlet structure 12, the water receiving port 110 is connected with the connecting portion 227 of the sealing component 222, and a top end of the top pin 120 contacts a bottom end of the valve core 225. Under the push of the top pin 120, the valve core 225 moves in a direction away from the water outlet 226 to release the water outlet 226.

[0098] In some embodiments, the water inlet 110 and the connecting portion 227 are connected by an interference fit. When the water tank 20 is placed on the cleaning machine body 10, the water tank 20 can be pressed down to achieve an automatic locking between the water outlet structure 22 and the water inlet structure 12.

[0099] Referring to FIG. 8, the cleaning machine body 10 further includes a pump. The pump includes a first end and a second end opposite to each other. The first endof the pump is connected with the water receiving port 110.

[0100] In some embodiments, the pump is configured to provide power for the water entering the water receiving port 110.

[0101] In some embodiments, the pump may be a diaphragm pump, which has advantages of low cost and long service life.

[0102] Referring to FIG. 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 with a second end of the pump, and the other end of the spring tube 16 is connected with the spray gun 14.

[0103] In some embodiments, the cleaning machine body 10 is provided with a first accommodating chamber (not shown) and a second accommodating chamber (not shown). The first accommodating chamber is configured to accommodate the spray gun 14, and the second accommodating chamber is configured to accommodate the spring tube 16.

[0104] In some embodiments, the spring tube 16 can be extended when in use and contracted when not in use. The spray gun 14 and the spring tube 16 are accommodated in the cleaning machine body 10 when not in use.

[0105] In some embodiments, a first notch 23 is provided at a bottom edge of the water tank 20, and a second notch 17 is provided at a top edge of the cleaning machine body 10. When the water tank 20 is connected with the cleaning machine body 10, the first notch 23 and the second notch 17 enclose to form a through-hole for the spring tube 16 to pass through.

[0106] In some embodiments, 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, an 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] FIG. 11 is a schematic structural view of a spray gun according to an embodiment of the present disclosure. FIG. 12 is a schematic internal structural view of the spray gun of FIG. 11 after removing an outer housing.

[0108] Referring to FIGS. 11 and 12, the spray gun 14 is provided with a trigger self-locking device. The trigger self-locking device includes a trigger 141, a movable block 142, and a locking component 144. The movable block 142 is connected with the trigger 141, and the movable block 142 has a locking slot 143. The locking component 144 has a first end 145. When the trigger 141 is pressed, the trigger 141 is configured to push the movable block 142 to move towards the locking component 144 until the first end 145 engages with the locking slot 143 so as to lock the trigger 141 in a pressed state.

[0109] In some embodiments, limiting components 146 are symmetrically arranged on two opposite sides of the movable block 142. Each limiting component 146 includes a first curved surface 147 and a second curved surface 148. The locking slot 143 is arranged on the limiting component 146 and located between the first curved surface 147 and the second curved surface 148. The first end 145 of the locking component 144 is arranged above the limiting component 146 and abuts against the first curved surface 147. The first end 145 of the locking component 144 is configured to slide along the first curved surface 147 to engage with the locking slot 143, and is configured to slide along the second curved surface 148 to disengage from the locking slot 143.

[0110] In some embodiments, the locking component 144 has a U-shaped structure, and the first end portion 145 includes two end portions at an opening of the U-shaped structure. The two end portions at the opening of the U-shaped structure respectively abut against two symmetrically arranged limiting components 146.

[0111] In some embodiments, when using the spray gun 14, the trigger 141 is pressed, and the trigger 141 pushes the movable block 142 to move towards the locking component 144. The first end 145 of the locking component 144 slides alongthe first curved surface 147 on the limiting component 146 until the first end 145 engages with the locking slot 143 so as to maintain the pressed state of the trigger 141. When unlocking, the trigger 141 is pressed again to disengage the first end 145 of the locking component 144 from the locking slot 143. Then, the first end 145 slides along the second curved surface 148 and returns to the initial position so as to complete the locking and unlocking of the trigger 141.

[0112] In some embodiments, a curvature of the first curved surface 147 is greater than a curvature of the second curved surface 148, so that the first end 145 can smoothly slide from the second curved surface 148 to the initial position when unlocking the trigger 141.

[0113] Referring to FIGS. 1 to 3, a limiting rib 211 is provided on a side wall of the receiving chamber 21. When the cleaning machine body 10 is placed in the receiving chamber 21, the limiting rib 211 is used to restrict a movement of the cleaning machine body 10 in the receiving chamber 21.

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

[0115] In some embodiments, multiple limiting ribs 211 are symmetrically arranged on two opposite side walls of the receiving chamber 21, and the limiting ribs 211 protrude from the side wall of the receiving chamber 21. Correspondingly, multiple limiting grooves 15 are symmetrically arranged two opposite outer 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 receiving chamber 21. Correspondingly, the limiting grooves 15 may also be provided on each outer wall of the cleaning machine body 10.

[0117] Although the present disclosure has been disclosed above, the present disclosure is not limited thereto. Any changes and modifications may be made bythose skilled in the art within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the scope defined by the claims.

Claims

CLAIMS1. A pressure cleaning machine, comprising:a cleaning machine body;a water tank detachably connected with the cleaning machine body and comprising a receiving chamber, wherein when the water tank is disconnected with the cleaning machine body, the receiving chamber is configured to receive the cleaning machine body, and when the water tank is connected with the cleaning machine body, the water tank is configured to supply water to the cleaning machine body; anda cover detachably connected with the water tank.

2. The pressure cleaning machine according to claim 1 , further comprising: a water outlet structure arranged on a bottom of the water tank; anda water inlet structure arranged on the cleaning machine body, wherein the water inlet structure is connected with the water outlet structure when the water tank is connected with the cleaning machine body.

3. The pressure cleaning machine according to claim 2, wherein an installing chamber protruding towards the receiving chamber is provided on the bottom of the water tank, and the water outlet structure comprises a cover body and a water outlet valve, wherein the cover body is arranged in the receiving chamber and covers outside the installing chamber, and a gap exists between the cover body and the bottom of the water tank, wherein the water outlet valve is installed in the installing chamber, and a water inlet is provided on a top of the water outlet valve and communicated with the gap.

4. The pressure cleaning machine according to claim 3, wherein the water outlet valve further comprises a housing and a sealing component, and the housing is connected with the sealing component, wherein the water inlet is provided on a top ofthe housing, and the sealing component is provided with a plurality of water inlet holes communicated with the water inlet.

5. The pressure cleaning machine according to claim 4, wherein the sealing component comprises a valve hole and a valve core arranged in the valve hole, and the valve hole is arranged in the sealing component and communicated with the plurality of water inlet holes, wherein a water outlet is provided on a bottom of the valve hole, and the valve core is configured to abut against the water outlet to block the water outlet.

6. The pressure cleaning machine according to claim 5, wherein the water inlet structure comprises a water receiving port protruding from a bottom surface of the cleaning machine body and a top pin arranged in the water receiving port, wherein when the water tank is connected with the cleaning machine body, the water receiving port is connected with the sealing component, and the top pin pushes the valve core to move along an axial direction of the valve hole to open the water outlet.

7. The pressure cleaning machine according to claim 6, wherein the water inlet is connected with the sealing component by an interference fit.

8. The pressure cleaning machine according to any one of claims 2 to 7, wherein the cleaning machine body further comprises a pump having a first end and a second end opposite to each other, and the first end of the pump is connected with the water inlet structure.

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

10. The pressure cleaning machine according to claim 9, wherein the cleaning machine body is provided with a first accommodating chamber and a second accommodating chamber, wherein the first accommodating chamber is configured toaccommodate the spray gun, and the second accommodating chamber is configured to accommodate the spring tube.

11. The pressure cleaning machine according to claim 9 or claim 10, wherein the spray gun is provided with a trigger self-locking device, and the trigger self-locking device comprises a trigger, a movable block connected with the trigger and having a locking slot and a locking component having a first end, wherein when the trigger is pressed, the trigger is configured to push the movable block to move towards the locking component until the first end engages with the locking slot so as to lock the trigger in a pressed state.

12. The pressure cleaning machine according to claim 11, wherein the movable block is provided with a limiting component having a first curved surface and a second curved surface, and the locking slot is arranged on the limiting component and between the first curved surface and the second curved surface, wherein a first end of the locking component is arranged above the limiting component and buts against the first curved surface, and the first end of the locking component is configured to slide along the first curved surface to engage with the locking slot, and is configured to slide along the second curved surface to disengage from the locking slot.

13. The pressure cleaning machine according to claim 12, wherein a curvature of the first curved surface is greater than a curvature of the second curved surface.

14. The pressure cleaning machine according to any one of claims 9 to 13, wherein a first notch is provided at an edge of the bottom of the water tank, and a second notch is provided at an edge of a top of the cleaning machine body, wherein when the water tank is connected with the cleaning machine body, the first notch and the second notch enclose to form a through-hole for the spring tube to pass through.

15. The pressure cleaning machine according to claim 1, wherein the water tank is provided with a first locking buckle on an outer wall of the water tank, and the cleaning machine body is provided with a first locking groove for matching with thefirst locking buckle.

16. The pressure cleaning machine according to claim 15, wherein the water tank is provided with a second locking buckle on the outer wall of the water tank, and the cover is provided with a second locking groove for matching with the second locking buckle.

17. The pressure cleaning machine according to claim 16, wherein the first locking buckle and the second locking buckle are arranged on a same side of the water tank.

18. The pressure cleaning machine according to any one of claims 1 to 17, wherein a limiting rib is provided on a side wall of the receiving chamber, and when the cleaning machine body is placed in the receiving chamber, the limiting rib is configured to restrict a movement of the cleaning machine body.

19. The pressure cleaning machine according to claim 18, wherein a limiting groove is provided on an outer wall of the cleaning machine body, and when the cleaning machine body is placed in the receiving chamber, the limiting groove is engaged with the limiting rib.

20. The pressure cleaning machine according to any one of claims 1 to 19, wherein a sealing ring groove is provided on a bottom of the cover, and a cover sealing ring is provided in the sealing ring groove.

21. The pressure cleaning machine according to claim 20, wherein the cover sealing ring is a rubber ring or a silicone ring.

22. The pressure cleaning machine according to claim 20 or claim 21, wherein when the cover is connected with the water tank, an edge of an opening end of the water tank is clamped between an edge of the cover and the cover sealing ring, and the edge of the opening end of the water tank is in interference fit with the edge of the cover and the cover sealing ring.

23. The pressure cleaning machine according to any one of claims 1 to 22, wherein the cover is provided with a water injecting port, and when the cover is connected with the water tank, the water injecting port is communicated with the receiving chamber.

24. The pressure cleaning machine according to any one of claims 1 to 23, wherein the cover is further provided with a water injecting port cover, and the water injecting port cover is configured to seal the water injecting port.

25. The pressure cleaning machine according to any one of claims 1 to 24, wherein the cleaning machine body is provided with a first handle, and two ends of the first handle are respectively rotatably connected with the cleaning machine body.

26. The pressure cleaning machine according to any one of claims 1 to 25, wherein the cover is further provided with a second handle, and two ends of the second handle are respectively rotatably connected with the cover.

27. The pressure cleaning machine according to any one of claims 1 to 26, wherein a ratio between a volume of the water tank and a volume of the cleaning machine body is 8:5.

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