Water supply system for cleaning machine and cleaning machine

Abstract

The invention belongs to the technical field of cleaning electric appliances, and discloses a water supply system for a cleaning machine and the cleaning machine.The water supply system comprises a water path assembly and a driver, the water path assembly is provided with a water supply pipe and an adjusting piece, and the water supply pipe vertically extends and is provided with a water passing opening in the side portion; the adjusting part can be movably restrained outside the water supply pipe in the extending direction of the water supply pipe and always forms sealing at the water passing opening, the adjusting part is provided with an adapter pipe used for being connected with the other end of the water guide pipe in an assembled mode, and the water outlet end of the water supply pipe communicates with the flow channel through the adapter pipe; the power output end of the driver is in driving connection with the adjusting piece so as to drive the adjusting piece to move along the water supply pipe and drive the whole spraying assembly to ascend and descend relative to the water supply pipe. According to the water supply system, the direction of cleaning water at the water outlet end of the water supply pipe does not change in the process of entering the water guide pipe, local pressure loss and the water leakage phenomenon possibly formed by a plurality of idle outlets are avoided, the cleaning water keeps enough jet flow pressure, and the cleaning effect of the cleaning machine is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning appliances, and in particular to a water supply system for a cleaning machine and a cleaning machine. Background Art

[0002] A dishwasher is a household appliance that uses a washing pump to pressurize the cleaning water and transports it to the spray arm through the inner water channel. The cleaning water is sprayed through the spray holes on the spray arm to impact the surface of the tableware, thereby achieving the purpose of cleaning the tableware. The jet water pressure at the spray hole largely determines the cleaning performance of the dishwasher.

[0003] A dishwasher with multiple spray arms is generally provided with a lower spray arm at the bottom of the inner tank, and an upper spray arm is provided on the cutlery rack. Since the installation height of the cutlery rack is adjustable in order to adapt to the cleaning space requirements of cutlery of different sizes, the water pipe of the upper spray arm and the inner tank water path are separated. A water outlet joint is provided on the inner tank to realize the connection between the inner tank water path and the water pipe. The water outlet joint has an inlet connected to the inner tank water path, and has multiple water outlets of different heights to respectively adapt to spray arms of different heights. The water pipe is connected to one of the water outlets according to the installation height of the cutlery rack to realize the water path connection. However, since the inlet height of the water outlet joint is fixed, the inlet is directly connected only to the water outlet at the same height. When the heights of the inlet and the water outlet connected to the water pipe are different, the flow direction of the cleaning water changes. On the one hand, local water pressure loss will occur, resulting in a decrease in the jet water pressure of the upper spray arm, affecting the cleaning performance. On the other hand, the remaining unconnected water outlets are prone to leakage under the impact of the cleaning water, thereby affecting the jet water pressure of the upper spray arm. Summary of the invention

[0004] The first object of the present invention is to provide a water supply system for a washing machine, which can solve the problem that the water outlet joint of the inner tank water circuit of the existing dishwasher has multiple water outlets with different heights. When the inlet of the water outlet joint and the connected water outlet are at different heights, the flow direction of the washing water changes and the remaining unconnected water outlets are impacted by the washing water to cause water leakage, thereby causing water pressure loss.

[0005] To achieve this object, the present invention adopts the following technical solutions on one hand:

[0006] First, a water supply system for a cleaning machine is provided, comprising a spray assembly, wherein the spray assembly comprises a water pipe and a spray arm, wherein the water pipe has a flow channel inside, and the spray arm is provided with a spray hole for spraying cleaning water, wherein the spray arm is rotatably connected to one of the two ends of the water pipe and rotates relative to the water pipe under the action of water flow, and the spray hole is in fluid communication with the flow channel and is located downstream of the flow direction of the cleaning water;

[0007] Also included are:

[0008] A water channel assembly, the water channel assembly comprising a water supply pipe and an adjusting member, the water supply pipe extending vertically and having a water opening on the side, the adjusting member being movably constrained outside the water supply pipe along the extending direction of the water supply pipe and always forming a seal at the water opening, the adjusting member being provided with a transfer tube for assembly and connection with the other end of the water guide pipe, the water outlet end of the water supply pipe being connected with the flow channel through the transfer tube; and

[0009] A driver, wherein a power output end of the driver is drivingly connected to the adjusting member to drive the adjusting member to move along the water supply pipe and drive the entire spray assembly to rise and fall relative to the water supply pipe.

[0010] As an optional structure of the present invention, the water opening is strip-shaped and extends along the length direction of the water supply pipe.

[0011] As an optional structure of the present invention, the water channel assembly further comprises a cover shell, wherein the cover shell is arranged outside the water supply pipe and a gap is left between the cover shell and the outer wall of the water supply pipe for the adjustment member to move.

[0012] As an optional structure of the present invention, a guide port opposite to the water outlet is provided on the cover shell, and the transfer tube can move synchronously with the adjusting member and slidably match with the guide port.

[0013] As an optional structure of the present invention, the outer wall of the water supply pipe partially forms a plane area extending along the length direction, the water outlet is opened in the plane area, and the adjusting member is plate-shaped and matches the plane area to form a seal at the water outlet.

[0014] As an optional structure of the present invention, the upper end of the water supply pipe has a flat section, both sides of the flat section form a plane area, and the cover shell is buckled outside the flat section.

[0015] As an optional structure of the present invention, the water supply pipe has a mounting groove beside the flat section, the driver is a driving motor embedded in the mounting groove, and the output shaft of the driving motor is provided with driving teeth, corresponding to the side of the adjusting member having a tooth portion meshing with the driving teeth.

[0016] As an optional structure of the present invention, the periphery of the guide port has a ring-shaped guide wall extending in the direction of the spray arm, the outer end of the guide wall has a laterally extending limit rib, the water pipe is provided with a clip, and when the water pipe and the transfer pipe are in an assembled state, the clip is hooked on the limit rib and abuts against the outer side of the guide wall.

[0017] As an optional structure of the present invention, a support body is further provided on the adjusting member, and the support body is arranged inside the guide wall and abuts against the inner side of the guide wall when the buckle is in a state of abutting against the outer side of the guide wall.

[0018] As an optional structure of the present invention, the support body is a support rib extending outward from the transfer tube.

[0019] As an optional structure of the present invention, one of the guide wall and the supporting rib is provided with a limiting groove, and the other one is provided with a limiting protrusion, and the limiting protrusion can be limited to the limiting groove or escape from the limiting groove under the sliding action of the adjusting member.

[0020] As an optional structure of the present invention, there are two clips, and both of the clips are rotatably connected to the water pipe so that the free ends can be relatively retracted or relatively opened; when the two free ends are relatively retracted, the clips can be hooked on the limiting edge, and when the two free ends are relatively opened, the driver drives the spray assembly to rise and fall.

[0021] The second purpose of the present invention is to provide a cleaning machine, which has the above-mentioned water supply system that can solve the problem that the existing water outlet joint has multiple water outlets with different heights. When the inlet of the water outlet joint and the connected water outlet are at different heights, the flow direction of the cleaning water changes and the remaining unconnected water outlets are impacted by the cleaning water and leak, thereby causing water pressure loss.

[0022] To achieve this object, the present invention adopts the following technical solution on the other hand:

[0023] Secondly, a cleaning machine is provided, including the water supply system as described above.

[0024] Beneficial effects of the present invention:

[0025] The water supply system for a cleaning machine provided by the present invention includes a water circuit assembly and a driver. The water circuit assembly has a water supply pipe and an adjusting member. The water supply pipe extends vertically and has a water outlet on the side. The adjusting member can be movably constrained outside the water supply pipe along the extension direction of the water supply pipe and always forms a seal at the water outlet. The adjusting member is provided with a transfer tube for assembly and connection with the other end of the water guide pipe. The water outlet of the water supply pipe is connected to the flow channel through the transfer tube. The power output end of the driver is connected to the adjusting member to drive the adjusting member to move along the water supply pipe and drive the spray assembly as a whole to rise and fall relative to the water supply pipe. Driven by the driver, the spray assembly and the adjusting member rise and fall synchronously, and the transfer pipe and the water pipe are always coaxially arranged to ensure that the transfer pipe and the water pipe are at the same height. In this way, the cleaning water flowing out of the water outlet end of the water supply pipe will not change direction at the connection point between the water pipe and the water outlet end during the process of entering the water pipe through the transfer pipe, thereby avoiding local pressure loss caused by the change in water flow direction; moreover, the seal at the water outlet of the water supply pipe is formed by the adjusting member, and the adjusting member has only one transfer pipe, thereby avoiding water leakage that may be caused by multiple idle outlets at different heights. The cleaning water always maintains sufficient jet pressure, and the water supply system has a better cleaning effect.

[0026] The cleaning machine provided by the present invention includes the water supply system as mentioned above. The driver of the water supply system drives the spray assembly and the adjusting part on the outside of the water supply pipe to rise and fall synchronously, and the adapter pipe and the water guide pipe are always coaxially arranged, thereby avoiding local pressure loss caused by changes in water flow direction at the water outlet end of the water supply pipe and the connection point of the water guide pipe, and avoiding water leakage that may be caused by multiple idle outlets at different heights, thereby improving the cleaning efficiency and cleaning cleanliness of the cleaning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a water supply system provided by an embodiment of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a spray assembly provided by an embodiment of the present invention without being connected to a water channel assembly;

[0029] Figure 3 is a schematic diagram of the structural disassembly of a water supply system provided by an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of an adjusting member provided by an embodiment of the present invention at a viewing angle;

[0031] Figure 5 is a schematic structural diagram of an adjusting member provided by an embodiment of the present invention at another viewing angle;

[0032] Figure 6 It is a structural cross-sectional view of the water conduit and the transfer tube provided by an embodiment of the present invention;

[0033] Figure 7 yes Figure 6 A partial enlarged schematic diagram of part A;

[0034] Figure 8 Schematic diagram of the detection of the height detection member provided by the embodiment of the present invention Figure 1 ;

[0035] Fig. 9 Schematic diagram of the detection of the height detection member provided by the embodiment of the present invention Figure 2 ;

[0036] Fig.10 Schematic diagram of the detection of the height detection member provided by the embodiment of the present invention Figure 3 ;

[0037] Fig.11 The structure of the water pipe and the transfer pipe provided by the embodiment of the present invention in the assembled state is sectional Figure 1 ;

[0038] Fig.12 The structure of the water pipe and the transfer pipe provided by the embodiment of the present invention in the assembled state is sectional Figure 2 ;

[0039] Fig.13 It is a partial structural schematic diagram of a cleaning machine provided in an embodiment of the present invention.

[0040] In the figure:

[0041] 1. Spray assembly; 11. Water guide pipe; 111. Buckle; 1111. Driving end; 112. Elastic reset member; 113. Lead-out hole; 12. Spray arm;

[0042] 2. Waterway assembly; 21. Water supply pipe; 211. Water supply cavity; 212. Water outlet; 213. Mounting groove; 22. Adjustment member; 221. Transfer tube; 222. Tooth; 223. Support body; 2231. Position limiting convex portion; 224. Position limiting snap ring; 23. Cover; 231. Guide port; 232. Guide wall; 2321. Position limiting groove; 233. Position limiting retaining edge; 234. Snap-fit ​​member; 24. Sealing ring;

[0043] 3. Driver; 31. Driving gear;

[0044] 4. Shelf assembly; 41. Pulley;

[0045] 5. Height detection part; 6. Inner tank; 61. Fixed support; 7. Guide rail assembly; 71. Guide rail. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It is also necessary to explain that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0050] like Figures 1 to 3 As shown, the embodiment of the present invention first provides a water supply system for a washing machine, the water supply system includes a spray assembly 1, and the spray assembly 1 includes a water pipe 11 and a spray arm 12. The water pipe 11 has a flow channel inside, and the spray arm 12 is provided with a spray hole for spraying washing water. The spray arm 12 is rotatably connected to one of the two ends of the water pipe 11, and rotates relative to the water pipe 11 under the action of water flow. The spray hole is connected to the flow channel fluid and is located downstream of the flow direction of the washing water. Washing water with a certain pressure is sprayed out from the spray hole to impact and clean the tableware.

[0051] The water supply system also includes a water circuit assembly 2 and a driver 3. The water circuit assembly 2 has a water supply pipe 21 and an adjusting member 22. The water supply pipe 21 extends vertically and has a water opening 212 on the side. The adjusting member 22 can be movably constrained outside the water supply pipe 21 along the extension direction of the water supply pipe 21 and always forms a seal at the water opening 212. The adjusting member 22 is provided with a transfer pipe 221 for assembly and connection with the other end of the water guide pipe 11. The water outlet end of the water supply pipe 21 is connected to the flow channel through the transfer pipe 221. The power output end of the driver 3 is connected to the adjusting member 22 to drive the adjusting member 22 to move along the water supply pipe 21 and drive the spray assembly 1 as a whole to rise and fall relative to the water supply pipe 21. Driven by the driver 3, the spray assembly 1 and the adjusting member 22 rise and fall synchronously, and the transfer tube 221 and the water pipe 11 are always coaxially arranged to ensure that the transfer tube 221 and the water pipe 11 are at the same height. In this way, when the cleaning water flowing out of the water outlet end of the water supply pipe 21 enters the water pipe 11 through the transfer tube 221, the direction will not change at the connection point between the water pipe 11 and the water outlet end, thereby avoiding local pressure loss caused by the change in water flow direction; moreover, the seal at the water outlet 212 of the water supply pipe 21 is formed by the adjusting member 22, and the adjusting member 22 has only one transfer tube 221, thereby avoiding water leakage that may be caused by multiple idle outlets at different heights, and the cleaning water always maintains sufficient jet pressure, and the water supply system has a better cleaning effect.

[0052] It should be noted that the assembly connection between the water pipe 11 and the transfer tube 221 can be that the water pipe 11 is sleeved outside the transfer tube 221, or that the water pipe 11 is inserted into the transfer tube 221, and is not limited to the drawings of the embodiment.

[0053] The water supply pipe 21 has a water supply cavity 211 in which washing water pressurized by a washing pump flows, and the washing water flows through a water opening 212 into a transfer tube 221. The water opening 212 is strip-shaped and extends along the length direction of the water supply pipe 21. The window area of ​​the water opening 212 is larger than the channel area of ​​the transfer tube 221. When the adjusting member 22 moves along the extension direction of the water supply pipe 21, the transfer tube 221 is always in the water opening 212, thereby realizing that the transfer tube 221 and the water supply cavity 211 are always connected.

[0054] In order to improve the reliability of the connection and sealing between the adjusting member 22 and the water supply pipe 21, the water channel assembly 2 also includes a cover 23, which is covered outside the water supply pipe 21 and has a gap between the cover 23 and the outer wall of the water supply pipe 21 for the adjusting member 22 to move. The adjusting member 22 is clamped between the water supply pipe 21 and the cover 23. This clamping structure is conducive to maintaining the position accuracy of the adjusting member 22, so that the adjusting member 22 always moves in contact with the outer wall of the water supply pipe 21, and the reliability of the sealing at the water opening 212 is maintained.

[0055] The cover 23 is provided with a guide opening 231 opposite to the water opening 212, and the transfer tube 221 can move synchronously with the adjusting member 22 and slide with the guide opening 231. The transfer tube 221 passes through the guide opening 231 to connect with the water pipe 11. The opening length of the guide opening 231 extends along the length direction of the water opening 212, meeting the position requirement of the transfer tube 221 when the adjusting member 22 moves along the extension direction of the strip-shaped water opening 212.

[0056] In order to improve the sealing between the housing 23 and the adjusting member 22, a sealing ring 24 is provided between the housing 23 and the adjusting member 22. The sealing ring 24 is interference fit between the housing 23 and the adjusting member 22, and reduces the risk of water leakage between the housing 23 and the adjusting member 22 through elastic compression deformation. In order to ensure the sealing effect, the sealing ring 24 can be connected to the housing 23, and the adjusting member 22 always presses the sealing ring 24 during the movement.

[0057] A plane area extending along the length direction is partially formed on the outer wall of the water supply pipe 21, and a water outlet 212 is opened in the plane area. The adjusting member 22 is plate-shaped and matches the plane area to form a seal at the water outlet 212. The cooperation between the plane area and the plate-shaped structure can form a seal at the water outlet 212, and this matching structure can basically meet the water sealing requirements to avoid water leakage when the adjusting member 22 is moving or stationary. Of course, it needs to be explained that the interior of the dishwasher is an open water flow environment, which allows some water to leak out as long as there is not a large amount of water leakage that causes insufficient power of the spray arm 12. Therefore, the sealing mentioned here is not an absolute seal, but has a certain relativity.

[0058] In order to increase the constraint on the moving position of the adjusting member 22, the adjusting member 22 further includes a limit snap ring 224, which is disposed on the side of the adjusting member 22 facing the water supply pipe 21, and is disposed at the entrance of the transfer pipe 221, and protrudes from one side of the adjusting member 22. The adjusting member 22 moves in accordance with the surface of the water supply pipe 21, and the limit snap ring 224 is embedded in the water passage 212, and limits the left and right positions of the adjusting member 22, so that the adjusting member 22 can only move in the strip-shaped water passage 212 along the extension direction of the water passage 212.

[0059] The upper end of the water supply pipe 21 has a flat section, and both sides of the flat section form a flat area. The cover 23 is buckled outside the flat section, and a good sealing performance can be formed between the cover 23 and the water supply pipe 21. The design of the flat section of the water supply pipe 21 here not only plays the role of water conduction, but also has two additional functions: first, compared with the traditional tubular shape of the water supply pipe 21, the flat shape design can squeeze the internal flow channel space of the water supply pipe 21, which is equivalent to pressurizing the water flow and providing power guarantee for the supply of cleaning water from bottom to top; second, because the cover 23 is buckled on the water supply pipe 21 and forms a limit position of the limit position of the moving stroke of the adjusting member 22, the design of the local flat section of the water supply pipe 21 can increase the effective sealing area between the peripheral side of the adjusting member 22 and the water outlet 212, and at the same time increase the installation firmness and fit of the cover 23 buckled on the outside of the water supply pipe 21, avoid the shaking that may be caused by local deformation, and avoid the formation of gaps that cause dirt to accumulate.

[0060] The water supply pipe 21 has a mounting groove 213 beside the flat section, and the driver 3 is a driving motor embedded in the mounting groove 213. The output shaft of the driving motor is provided with a driving tooth 31, and the side of the adjusting member 22 has a tooth portion 222 meshing with the driving tooth 31. Figure 4 When the driving motor rotates, the output end drives the driving teeth 31 to rotate, and the tooth portion 222 and the driving teeth 31 mesh with each other, so that the adjusting member 22 moves along the extension direction of the water supply pipe 21. The driving motor is used as a power source, and its movement accuracy is high, which ensures the coaxial accuracy of the transfer pipe 221 and the water pipe 11, and can realize the reciprocating movement of the adjusting member 22 in the extension direction of the water supply pipe 21 through forward and reverse rotation, which is easy to adjust and control.

[0061] like Figure 6 and Figure 7As shown, the periphery of the guide opening 231 of the housing 23 has an annular guide wall 232 extending toward the spray arm 12, and the outer end of the guide wall 232 has a laterally extending limit rib 233. The water pipe 11 has a buckle 111, and when the water pipe 11 and the transfer pipe 221 are in an assembled state, the buckle 111 is hooked on the limit rib 233 and abuts against the outer side of the guide wall 232, thereby increasing the reliability of the connection between the water pipe 11 and the transfer pipe 221. The design of the guide wall 232, on the one hand, can form a guide opening 231 in the length direction, which plays a guiding role for the adjusting member 22, that is, the transfer tube 221 has a certain length, and in addition to being slidably constrained in the guide opening 231, it will also be constrained in the guide wall 232; on the other hand, since the guide wall 232 extends toward the spray arm 12, it is equivalent to having a certain direction in its own width direction, and at the same time, the end of the extension direction is matched with a limiting retaining edge 233. When the water pipe 11 and the transfer tube 221 are assembled, the buckle 111 on the water pipe 11 can be hooked on the limiting retaining edge 233 to prevent the water pipe 11 and the transfer tube 221 from falling off under the impact of water pressure, and the lifting process of the spray assembly 1 does not need to disconnect the entire water path, and can be completed at any time in the water-flowing state. At this time, the buckle 111 on the water pipe 11 will slide along the limiting retaining edge 233 due to the restriction of the hook.

[0062] In one embodiment, there are two buckles 111, and the two buckles 111 are rotatably connected to the water pipe 11 so that the free ends can be relatively retracted or relatively opened. When the two free ends are relatively retracted, the buckles 111 can be hooked on the limiting retaining edge 233; when the free ends of the two buckles 111 are relatively opened, the driver 3 can drive the spray assembly 1 as a whole to rise and fall relative to the water supply pipe 21.

[0063] Specifically, if Fig.11 and Fig.12As shown, the water pipe 11 is provided with an outlet hole 113, the rotating shaft of the buckle 111 is arranged on the water pipe 11, and the buckle 111 passes through the outlet hole 113 so that the driving end 1111 is located inside the water pipe 11 and the free end is located outside the water pipe 11. In order to reduce the obstruction area of ​​the driving end 1111 inside the water pipe 11 to be too large, along the flow direction of the cleaning water, the angle between the buckle 111 and the flow direction is an acute angle, the cleaning water can push against the driving end 1111 so that the free end and the driving end 1111 rotate around the rotating shaft at the same time, and the free end can rotate and relatively retract until it is hooked on the limiting retaining edge 233. The buckle 111 hooked on the limiting retaining edge 233 increases the reliability of the connection between the water pipe 11 and the transfer tube 221, and prevents the water pipe 11 from loosening or falling off from the transfer tube 221. In addition, the impact force and water pressure of the flow of cleaning water are used to form a power source that causes the buckle 111 to rotate and then hook on the limiting retaining edge 233. On the one hand, it reduces the direct impact force of the cleaning water on the water pipe 11 and reduces the risk of the spray assembly 1 shaking and moving. On the other hand, it forms a locking state between the water pipe 11 and the water channel assembly 2, increases the reliability of the connection between the water pipe 11 and the transfer tube 221, and avoids the risk of water leakage. When there is no cleaning water in the water pipe 11, the free ends of the two buckles 111 are relatively open, and the hook with the limiting retaining edge 233 is released. At this time, the driver 3 can drive the spray assembly 1 as a whole to rise and fall relative to the water supply pipe 21.

[0064] In one embodiment, the spray assembly 1 further includes an elastic reset member 112, which is connected to the buckle 111. The elastic reset member 112 applies an elastic force to make the buckle 111 always have a movement tendency of the two free ends to open relatively, and the cleaning water can overcome the elastic force applied by the elastic reset member 112 to make the two free ends relatively close. In this way, when cleaning water flows in the water pipe 11, the cleaning water overcomes the elastic force applied by the elastic reset member 112 to the buckle 111, so that the buckle 111 rotates and the two free ends are relatively closed. Fig.11 When there is no cleaning water in the water pipe 11, the elastic force applied by the elastic reset member 112 to the buckle 111 causes the buckle 111 to rotate in opposite directions so that the free ends of the two buckles 111 are relatively open, as shown Fig.12 As shown. Therefore, due to the presence of the elastic reset member 112, when no cleaning water flows through the water pipe 11, the buckle 111 is in a relatively open state at the free end, which facilitates the driver 3 to drive the water pipe 11 to move through the transfer tube 221. Moreover, in the process of connecting the water pipe 11 to the adjustment member 22, the open buckle 111 avoids structural interference between the spray assembly 1 and the adjustment member 22. The elastic reset member 112 can be a torsion spring, which is sleeved on the rotating shaft of the buckle 111, and the two torsion arms of the torsion spring respectively abut the driving end 1111 and the free end, so that the free end remains away from the water pipe 11.

[0065] Due to the heavy weight of the spray assembly 1, a support body 223 is also provided on the adjustment member 22. The support body 223 is arranged inside the guide wall 232 and abuts against the inner side of the guide wall 232 when the buckle 111 is in a state of abutting against the outer side of the guide wall 232. The support body 223 always provides support for the abutment area between the guide wall 232 and the buckle 111 to ensure the reliability of the hooking of the buckle 111.

[0066] For example, the support body 223 is a support rib extending outward from the transfer tube 221. The support rib is formed by extending outward from the tube wall of the transfer tube 221 and is T-shaped. Two T-shaped support ribs are provided on the transfer tube 221, such as Figure 5 As shown, two T-shaped support ribs are symmetrically arranged on both sides of the transfer tube 221. On the one hand, the support ribs increase the structural strength of the transfer tube 221 to prevent the water pipe 11 from being mounted on the transfer tube 221 and causing deformation of the transfer tube 221. On the other hand, the side surfaces of the support ribs abut against the inner frame wall of the guide wall 232. The two support ribs on both sides of the transfer tube 221 and the guide wall 232 are interference fit in the width direction. The support ribs squeeze the guide wall 232 to increase static friction and prevent the transfer tube 221 from moving relative to the cover shell 23.

[0067] In order to further improve the position stability of the adjusting member 22 after the driver 3 drives the adjusting member 22 to adjust the height position, one of the guide wall 232 and the supporting rib is provided with a limiting groove 2321, and the other is provided with a limiting convex portion 2231, and the limiting convex portion 2231 can be limited to the limiting groove 2321 or escape from the limiting groove 2321 under the sliding action of the adjusting member 22. In one embodiment, a plurality of limiting grooves 2321 are arranged at intervals along the extending direction of the guide opening 231 on the guide wall 232, and the limiting convex portion 2231 is arranged on the supporting rib of the adjusting member 22. When the driving motor adjusts the adjusting member 22 to a corresponding height, the limiting convex portion 2231 on the adjusting member 22 is engaged with the limiting groove 2321 of the corresponding height on the water supply pipe 21, so as to keep the position of the adjusting member 22 stable and prevent movement in the height direction, thereby ensuring the connection reliability between the adjusting member 22 and the water guide pipe 11 on the one hand, and avoiding the meshing misalignment between the tooth portion 222 and the driving tooth 31 on the other hand.

[0068] The adjustment height of the adjustment member 22 is determined by the height position of the water pipe 11. For example, due to different cleaning requirements, when the water pipe 11 has three height positions, three spaced limit grooves 2321 are correspondingly opened on the guide wall 232 to correspond to the three position heights of the water pipe 11 respectively.

[0069] In order to achieve the movement of the spray assembly 1 driven by the adjustment member 22 in the extension direction of the water supply pipe 21 and the shelf assembly 4 to maintain synchronization, so that the lifting height of the spray assembly 1 meets the position adjustment requirements of the shelf assembly 4, the water supply system also includes a height detection member 5, which can detect the height of the shelf assembly 4, and then give the height that the spray assembly 1 needs to be adjusted to. The height detection member 5 is connected to the driver 3 in communication, and the driver 3 can drive the adjustment member 22 to move along the extension direction of the water supply pipe 21 according to the detection result of the height detection member 5 so that the spray assembly 1 moves synchronously to meet the position adjustment requirements of the shelf assembly 4. Taking the driver 3 as an example, the height detection member 5 transmits the detection signal to the control module, and the control module calculates the motion parameters such as the torque and rotation angle of the drive motor according to the detection signal, and transmits them to the drive motor. The drive motor immediately drives the adjustment member 22 to move along the first direction according to the motion parameters, and the transfer tube 221 and the water pipe 11 remain coaxial and move synchronously, and the spray assembly 1 immediately realizes height adjustment to adapt to the lifting and lowering of the shelf assembly 4.

[0070] The following description will be made by taking the case where the height detection member 5 adopts a pressure sensor and the shelf assembly 4 has three adjustable heights as an example.

[0071] The guide rail assembly 7 supporting the shelf assembly 4 includes two layers of guide rails 71 spaced apart along the first direction. The shelf assembly 4 can be selectively connected to any layer of guide rails 71. A pressure sensor is provided on each layer of guide rails 71. There are four pulleys 41 on each side of the shelf assembly 4. The four pulleys 41 are arranged in pairs, so as to realize pulley groups arranged in two rows in the first direction. The cooperation and connection between the two rows of pulley groups and the two layers of guide rails can realize three different adjustment heights of the shelf assembly 4. Figure 8 As shown, when the shelf assembly 4 is at the upper height, the lower row of pulley blocks presses the upper guide rail 71, and the upper pulley block is suspended. Therefore, the upper guide rail 71 is stressed, and the lower guide rail 71 is not stressed. The pressure sensor of the upper guide rail 71 has a signal output, and the pressure sensor of the lower guide rail 71 does not output a signal. The driving motor drives the driving gear 31 to rotate so that the transfer tube 221 is at a corresponding height, that is, the water pipe 11 drives the spray assembly 1 to adjust to the corresponding height; Fig. 9 As shown, when the shelf assembly 4 is at an intermediate height, the two rows of pulleys are respectively pressed against the corresponding one layer of guide rails 71, so that both layers of guide rails 71 are stressed, the detection signals of the two pressure sensors are the same, and the driving motor drives the driving gear 31 to rotate so that the transfer tube 221 is at a corresponding height, that is, the water pipe 11 drives the spray assembly 1 to adjust to a corresponding height; Fig.10As shown, when the shelf assembly 4 is at the lower height, the upper row of pulley blocks presses against the lower guide rail 71, and the lower pulley block is suspended in the air. Therefore, the upper guide rail 71 is not subjected to force, while the lower guide rail 71 is subjected to force. The pressure sensor of the upper guide rail 71 does not output a signal, while the pressure sensor of the lower guide rail 71 outputs a signal. The drive motor drives the drive gear 31 to rotate so that the transfer tube 221 is at a corresponding height, which satisfies the water pipe 11 to drive the spray assembly 1 to adjust to a corresponding height.

[0072] The height adjustment methods of the guide rail assembly 7 and the shelf assembly 4, as well as the adjustable height of the shelf assembly 4, are all examples and are not intended to be limiting. The detection principle of the height detection member 5 and the principle of the drive motor rotating according to the detection result are prior arts in the art and will not be described in detail in this embodiment.

[0073] The present invention further provides a cleaning machine, such as Fig.13 As shown, the cleaning machine includes a water supply system as described above. The driver 3 of the water supply system can drive the spray assembly 1 and the adjusting member 22 to rise and fall synchronously, so that the transfer pipe 221 and the water pipe 11 are always coaxially arranged, ensuring that the transfer pipe 221 and the water pipe 11 are at the same height, so that the cleaning water flowing out of the water outlet end of the water supply pipe 21 will not change direction at the connection point between the water pipe 11 and the water outlet end during the process of entering the water pipe 11 through the transfer pipe 221, thereby avoiding local pressure loss caused by the change in water flow direction; moreover, the seal at the water outlet 212 of the water supply pipe 21 is formed by the adjusting member 22, and the adjusting member 22 has only one transfer pipe 221, thereby avoiding water leakage that may be caused by multiple idle outlets at different heights, and the cleaning water always maintains sufficient jet pressure, thereby improving the cleaning efficiency and cleaning cleanliness of the cleaning machine.

[0074] The cleaning machine also includes an inner tank 6 forming a spray chamber, the water channel component 2 of the water supply system is installed on the inner tank 6, a fixed support 61 is provided on the inner tank 6, and there are snap-fitting parts 234 on both sides of the cover shell 23, and the snap-fitting parts 234 and the fixed support 61 form a detachable connection.

[0075] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A water supply system for a cleaning machine, comprising a spray assembly (1), the spray assembly (1) comprising a water pipe (11) and a spray arm (12), the water pipe (11) having a flow channel inside, the spray arm (12) having a spray hole for spraying cleaning water, the spray arm (12) being rotatably connected to one of the two ends of the water pipe (11) and being rotatable relative to the water pipe (11) under the action of water flow, the spray hole being in fluid communication with the flow channel and being located downstream of the flow direction of the cleaning water; It is characterized in that Also included are: A water channel assembly (2), the water channel assembly (2) comprising a water supply pipe (21) and an adjusting member (22), the water supply pipe (21) extending vertically and provided with a water opening (212) on the side, the adjusting member (22) being able to be movably restrained outside the water supply pipe (21) along the extending direction of the water supply pipe (21) and always forming a seal at the water opening (212), the adjusting member (22) being provided with a transfer pipe (221) for being assembled and connected with the other end of the water guide pipe (11), the water outlet end of the water supply pipe (21) being connected with the flow channel through the transfer pipe (221); and A driver (3), wherein a power output end of the driver (3) is drivingly connected to the adjusting member (22) so as to drive the adjusting member (22) to move along the water supply pipe (21) and drive the spray assembly (1) as a whole to rise and fall relative to the water supply pipe (21).

2. The water supply system according to claim 1, characterized in that: The water opening (212) is strip-shaped and extends along the length direction of the water supply pipe (21).

3. The water supply system according to claim 1, characterized in that: The water channel assembly (2) further comprises a cover shell (23), which is arranged outside the water supply pipe (21) and has a gap between the cover shell (23) and the outer wall of the water supply pipe (21) for the adjustment member (22) to move.

4. The water supply system according to claim 3, characterized in that: The cover shell (23) is provided with a guide opening (231) opposite to the water opening (212), and the transfer tube (221) can move synchronously with the adjusting member (22) and slideably match with the guide opening (231).

5. The water supply system according to claim 1, characterized in that: The outer wall of the water supply pipe (21) partially forms a plane area extending along the length direction, the water opening (212) is opened in the plane area, and the regulating member (22) is plate-shaped and matches the plane area to form a seal at the water opening (212).

6. The water supply system according to claim 3, characterized in that: The upper end of the water supply pipe (21) has a flat section, both sides of the flat section form a plane area, and the cover shell (23) is buckled outside the flat section.

7. The water supply system according to claim 6, characterized in that: The water supply pipe (21) has a mounting groove (213) beside the flat section, and the driver (3) is a driving motor embedded in the mounting groove (213). The output shaft of the driving motor is provided with driving teeth (31), and the side of the adjusting member (22) has a tooth portion (222) meshing with the driving teeth (31).

8. The water supply system according to claim 4, characterized in that: The guide opening (231) has a guide wall (232) extending in the direction of the spray arm (12) and in an annular shape on its periphery, the outer end of the guide wall (232) has a laterally extending limiting rib (233), the water guide pipe (11) has a buckle (111), and when the water guide pipe (11) and the transfer pipe (221) are in an assembled state, the buckle (111) is hooked on the limiting rib (233) and abuts against the outer side of the guide wall (232).

9. The water supply system according to claim 8, characterized in that: The adjusting member (22) is also provided with a support body (223), which is arranged inside the guide wall (232) and abuts against the inner side of the guide wall (232) when the buckle (111) is in a state of abutting against the outer side of the guide wall (232).

10. The water supply system according to claim 9, characterized in that: The support body (223) is a support rib extending outward from the transfer tube (221).

11. The water supply system according to claim 10, characterized in that: One of the guide wall (232) and the support rib is provided with a limiting groove (2321), and the other is provided with a limiting protrusion (2231), and the limiting protrusion (2231) can be limited to the limiting groove (2321) or escape from the limiting groove (2321) under the sliding action of the adjusting member (22).

12. The water supply system according to claim 8, characterized in that: There are two buckles (111), and both buckles (111) are rotatably connected to the water conduit (11) so that the free ends can be relatively retracted or relatively opened; when the two free ends are relatively retracted, the buckles (111) can be hooked on the limiting retaining edge (233), and when the two free ends are relatively opened, the driver (3) drives the spray assembly (1) to rise and fall.

13. A cleaning machine, characterized in that Comprising a water supply system as claimed in any one of claims 1 to 12.

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