Cleaning head and heating cleaning machine

Abstract

The utility model discloses a cleaning head and a heating cleaning machine, belongs to cleaning devices, and aims to solve the problems that cleaning liquid sprayed from a cleaning head of an existing fabric cleaning machine cannot reach ideal working temperature and temperature fluctuation is large, the cleaning head is provided with a liquid conveying channel, and a heating device is arranged in a path of the liquid conveying channel and used for heating the cleaning liquid flowing through the liquid conveying channel. The flowing path of the heated cleaning liquid in the cleaning head is greatly shortened, the heat loss is greatly reduced, the influence of the environment temperature on the temperature fluctuation is small, the cleaning liquid can be basically sprayed out according to the temperature after being heated by the heating device, and therefore the sprayed cleaning liquid can be easily controlled to be at the stable and ideal working temperature. Moreover, the cleaning liquid path in the main machine is provided with the preheating device, the preheating device preheats the cleaning liquid firstly during cleaning, then the heating device in the cleaning head conducts secondary heating on the cleaning liquid, the heating burden of the heating device is reduced, and the endurance time of the direct-current power source is prolonged when the cleaning head is provided with the direct-current power source.

Description

Technical Field

[0001] The utility model belongs to a cleaning device, and particularly relates to a cleaning head and a heating cleaning machine, which are suitable for cleaning wrappings, cushions, etc. of automobile seats, home sofas, etc. made of materials such as genuine leather, fabric, wool, etc. Background Technique

[0002] A fabric cleaning machine is a heating cleaning machine, which includes a main machine, a hose and a cleaning head. During operation, the main machine transports a cleaning liquid to the cleaning head through the hose, and the cleaning liquid is sprayed onto the part to be cleaned by moving the cleaning head at the part to be cleaned. At the same time, the vacuum (negative pressure or low pressure relative to the atmospheric pressure) generated by the main machine sucks the dirty liquid generated by the cleaning from the suction port of the cleaning head away from the part to be cleaned.

[0003] In the existing fabric cleaning machine, the heater is placed on the main machine, and the heated cleaning liquid must flow through a very long pipeline before being sprayed onto the part to be cleaned. A large amount of energy will be lost during the flow of the cleaning liquid, and the amount of energy loss will change with the ambient temperature and is not easy to control. Finally, the cleaning liquid sprayed from the cleaning head cannot reach the ideal working temperature and has a large temperature fluctuation. Similar technologies can refer to the utility model patent with the Chinese patent document number CN209975127U. Summary of the Utility Model

[0004] The technical problem to be solved and the technical task proposed by the utility model is to overcome the defect that the cleaning liquid sprayed from the cleaning head of the existing fabric cleaning machine cannot reach the ideal working temperature and has a large temperature fluctuation, and to provide a cleaning head and a heating cleaning machine in which the cleaning liquid sprayed from the cleaning head can maintain a stable working temperature.

[0005] To achieve the above object, the cleaning head of the utility model has an infusion channel, and is characterized in that: a heating device is provided in the path of the infusion channel for heating the flowing cleaning liquid.

[0006] Accordingly, the flowing path of the cleaning liquid heated in the cleaning head is greatly shortened, the heat loss is greatly reduced, the temperature fluctuation is less affected by the ambient temperature, and it can basically be sprayed out at the temperature after being heated by the heating device. Therefore, it is easy to control the sprayed cleaning liquid at a relatively stable and ideal working temperature. Moreover, the heating device can be powered by a DC power supply or an external power supply configured on the cleaning head. When using the DC power supply configured on the cleaning head, it is easy to select a DC power supply with a safe voltage to ensure electrical safety. When using an external power supply, the heating device can work continuously.

[0007] Preferably, the heating device includes a heat conduction module with a heating cavity and a heating module. The heating cavity of the heat conduction module is connected in series in the infusion channel and forms an enlarged flow part of the infusion channel. The heating module is in heat conduction cooperation with the heat conduction module. Accordingly, it is beneficial for the cleaning liquid flowing through the heating cavity to slow down in the heating cavity to be fully heated and heated up.

[0008] Preferably, the heat conduction module has a placement cavity, and the heating module is plate-shaped and placed in the placement cavity. Accordingly, the heating module can make as much of its surface contact the heat conduction module as possible to conduct heat to the heat conduction module, improving the heat utilization rate of the heating module, reducing heat loss and adverse effects on surrounding structures.

[0009] Preferably, the heat conduction module is assembled from two heat conductors. Accordingly, it is easy to make the through diameter of the heat conduction module larger than the caliber of the infusion channel to form a flow expansion part.

[0010] Preferably, at least part of the heating device is shielded by a heat insulation cover. Heat loss and adverse effects on surrounding structures are reduced.

[0011] Preferably, a valve is provided in the path of the infusion channel upstream or downstream of the heating device, and a control member is configured for the valve to control the opening or closing of the valve. Accordingly, the delivery or stop of the cleaning liquid is controlled by operating the control member.

[0012] Preferably, the cleaning head includes a connecting pipe assembly and an accessory detachably assembled together. This is suitable for configuring multiple accessories with different functions for the same connecting pipe assembly for users to select according to their needs.

[0013] Preferably, the connecting pipe assembly and the accessory are separately provided with a socket section, a plug section, a hook and a hook part. The plug section is inserted into the socket section and the hook hooks the hook part to detachably assemble the connecting pipe assembly and the accessory together. Accordingly, it is convenient to disassemble or assemble the connecting pipe assembly and the accessory.

[0014] Preferably, the heating device is powered by a DC power supply configured on the cleaning head, and the heating device and the DC power supply are jointly configured on the connecting pipe assembly or the accessory. When the connecting pipe assembly and the accessory are disassembled, there will be no entanglement with wires.

[0015] Preferably, a switch is configured for the heating device, and the switch is jointly configured on the connecting pipe assembly or the accessory with the heating device. When the connecting pipe assembly and the accessory are disassembled, there will be no entanglement with wires. Moreover, the heating device can be started or stopped as needed.

[0016] Preferably, a charging interface is configured for the DC power supply, and the charging interface is jointly configured on the connecting pipe assembly or the accessory with the DC power supply. When the connecting pipe assembly and the accessory are disassembled, there will be no entanglement with wires. Moreover, it is convenient to charge the DC power supply.

[0017] Preferably, the pipe assembly includes a pipe body, the pipe body has an assembly cavity and a pipe body cavity which are isolated from each other, the heating device is arranged in the assembly cavity, and the pipe body cavity is located in the path of the suction channel of the cleaning head. This structure does not need to provide other structures for assembling the heating device and the DC power supply, the structure is simple, the parts are few, the cleaning head is light, and the burden of holding the cleaning head is small.

[0018] Preferably, the accessory includes a body and a front cover and has a working surface facing the cleaned part during operation, the body has a partition wall, the front cover is fixed to the front side of the partition wall, a gap in the path of the sewage suction channel is maintained between the front cover and the partition wall, the working surface is provided with sewage suction ports communicating with the gap, and the front cover is detachably assembled to the body. Accordingly, the gap can be cleaned by removing the front cover.

[0019] Preferably, the body is provided with a snap-fit ​​hole, the rear end of the front cover is provided with an elastic snap-fit ​​protrusion, the front cover has a protruding surface constituting a working surface, the protruding surface is provided with a positioning hole, the elastic snap-fit ​​protrusion is snapped into the snap-fit ​​hole, the positioning hole is positioned by the positioning protrusion extending therein, and when the elastic snap-fit ​​protrusion is disengaged from the snap-fit ​​hole, the front cover is moved forward and the positioning hole is forced to be disengaged from the positioning protrusion to disassemble the front cover. Accordingly, the front cover can be easily disassembled and assembled.

[0020] Preferably, the accessories include a brush, a rear cover and an atomizing nozzle, the brush forms a working surface, the rear cover is adjacent to the brush and fixed to the rear side of the partition wall, the atomizing nozzle is oriented in the same direction as the working surface and is located at a retreated position relative to the working surface, and the brush is located between the atomizing nozzle and the sewage suction port. Accordingly, when cleaning, the cleaning head is moved in one direction to continuously achieve spraying cleaning of the atomizing nozzle, scrubbing of the brush and suction of the sewage suction port.

[0021] Preferably, the infusion channel is connected to the connection part of the connecting pipe assembly and the accessory through a pair of sealing joints, and the sewage suction channel is directly connected to the connection part of the connecting pipe assembly and the accessory. Accordingly, it is convenient to connect, assemble and disassemble the accessory with the connecting pipe assembly. In particular, when multiple accessories are configured, it is convenient to replace the accessories as needed.

[0022] Preferably, for safety in use, the heating device is powered by a DC power supply arranged on the cleaning head, and the heating device and the DC power supply are shielded inside the cleaning head.

[0023] Preferably, the cleaning head is provided with a cover, which shields the corresponding infusion channel in the cleaning head. Accordingly, it is convenient to arrange the infusion channel in the cleaning head and assemble the cleaning head.

[0024] Preferably, an atomizing module is provided in the path of the infusion channel for atomizing the cleaning liquid flowing through, so as to atomize the cleaning liquid and finally spray it evenly on the cleaned part.

[0025] In order to achieve the above-mentioned object, the heating cleaning machine of the utility model comprises:

[0026] A main body, which is configured with a cleaning liquid path for supplying cleaning liquid and a dirty liquid path for generating a vacuum environment;

[0027] A hose, which includes an infusion tube and a recovery tube that are isolated from each other;

[0028] The cleaning head of the present utility model, the cleaning head has a dirt suction channel isolated from the infusion channel, the infusion channel of the cleaning head is connected to the cleaning liquid path of the main body through the infusion tube of the hose, and the dirt suction channel of the cleaning head is connected to the dirty liquid path of the main body through the recovery tube of the hose.

[0029] During operation, the cleaning liquid is transported from the cleaning liquid path of the main body to the infusion channel of the cleaning head through the infusion tube of the hose and sprayed out from the cleaning head. At the same time, the vacuum (negative pressure or low pressure relative to the atmospheric pressure) generated by the dirty liquid path of the main body sucks the dirty liquid generated by cleaning from the part to be cleaned from the dirt suction port of the cleaning head, and sucks it back to the main body through the dirt suction channel of the cleaning head and the recovery tube of the hose for collection. During this period, the sprayed cleaning liquid is controlled at a relatively stable and ideal working temperature.

[0030] Preferably, the hose is connected to the cleaning head through a connecting pipe. The infusion tube of the hose and the infusion channel of the cleaning head are butt-jointed through a pair of sealing joints at the connection part between the joint and the cleaning head, and the recovery tube of the hose is directly communicated with the dirt suction channel of the cleaning head at the connection part between the joint and the cleaning head. Accordingly, it is convenient to connect, assemble and disassemble the cleaning head and the hose.

[0031] Preferably, the cleaning liquid path in the main body includes a preheating device for preheating the cleaning liquid. Accordingly, during the cleaning operation, the cleaning liquid is first preheated by the preheating device, and then the cleaning liquid is secondarily heated by the heating device in the cleaning head, thereby reducing the heating burden of the heating device and increasing the battery life of the DC power supply.

[0032] The present utility model is provided with a heating device in the path of the infusion channel of the cleaning head for heating the flowing cleaning liquid, greatly shortening the path from when the cleaning liquid is heated in the cleaning head to when it is sprayed out from the cleaning head, greatly reducing the heat loss of the cleaning liquid, and the temperature fluctuation of the cleaning liquid is less affected by the ambient temperature. The cleaning liquid can basically be sprayed out at the temperature after being heated by the heating device, so that it is easy to control the sprayed cleaning liquid at a relatively stable and ideal working temperature.

[0033] The heating device in the cleaning head of the present utility model can be powered by a DC power supply configured in the cleaning head for the heating device, which is easy to select a DC power supply with a safe voltage to ensure electrical safety, or can be powered by an external power supply to ensure the continuous operation of the heating device.

[0034] The heating and cleaning machine of the present utility model is configured with a preheating device for preheating the cleaning liquid in the cleaning liquid path inside the main body. During the cleaning operation, the preheating device first preheats the cleaning liquid, and then the heating device inside the cleaning head performs secondary heating on the cleaning liquid, thereby reducing the heating burden of the heating device and extending the battery life of the DC power supply when the cleaning head is configured with a DC power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 FIG. 1 is a schematic diagram of Embodiment 1 of the heating and cleaning machine of the present utility model;

[0036] Figure 2 is Figure 1 a schematic diagram of the cleaning head in FIG. 1;

[0037] Figure 3 FIG. 3 is Figure 2 a schematic diagram showing the separation of the pipe connection assembly and accessories of the cleaning head shown in FIG. 2;

[0038] Figure 4 FIG. 4 is a schematic diagram of the structural decomposition of the pipe connection assembly and accessories of Embodiment 1 of the present utility model;

[0039] Figure 5 is Figure 2 a front projection schematic diagram of the cleaning head shown in FIG. 2;

[0040] Figure 6 FIG. 5 is Figure 5 a sectional view taken along the line A-A of FIG. 4;

[0041] Figure 7 FIG. 6 is a schematic diagram of the heating device of the present utility model;

[0042] Figure 8 is Figure 7 a schematic diagram of the structural decomposition of the heating device shown in FIG. 6;

[0043] Figure 9 FIG. 7 is Figure 7 a front projection schematic diagram of the heating device shown in FIG. 6;

[0044] Figure 10 FIG. 8 is Figure 9 an enlarged sectional view taken along the line B-B of FIG. 7;

[0045] Figure 11 FIG. 9 is Figure 9 an enlarged sectional view taken along the line C-C of FIG. 7;

[0046] Figure 12 FIG. 10 is a schematic diagram of the pipe connection assembly of Embodiment 2 of the heating and cleaning machine of the present utility model;

[0047] Figure 13 is Figure 12 a schematic diagram of the structural decomposition of the pipe connection assembly shown in FIG. 10;

[0048] Figure 14 for Figure 12 An orthographic schematic diagram of the nozzle assembly shown;

[0049] Figure 15 for Figure 14 DD section view;

[0050] Figure 16 This is a schematic diagram of the structural decomposition of the attachment of Example 2 of the utility model;

[0051] Figure 17 for Figure 16 a schematic diagram of another view of the structure shown;

[0052] Description of the numbers in the figure:

[0053] 100 hosts;

[0054] 200 hose, 210 pipe, 220 elastic lock buckle, 230 first sealing joint;

[0055] 300 cleaning head, 301 infusion channel, 302 sewage suction channel,

[0056] 310 pipe assembly, 311 pipe body, 3111 plug section, 3112 through hole, 312 cover, 313 hook, 314 assembly cavity, 315 pipe body cavity,

[0057] 320 attachments,

[0058] 321 body, 3211 sleeve section, 3212 hook portion, 3213 partition wall, 3214 snap-on hole,

[0059] 322 front cover, 3221 sewage suction port, 3222 elastic clamping protrusion, 3223 protruding surface, 3224 positioning hole,

[0060] 323 working surface,

[0061] 324 brush, 3241 positioning protrusion,

[0062] 325 back cover,

[0063] 326 atomizing nozzle,

[0064] 327 gaps,

[0065] 331 second sealing joint, 332 third sealing joint,

[0066] 340 heating device, 341 heat conduction module, 3411 heating chamber, 3412 placement chamber, 3413 heat conductor, 342 heating module, 343 heat insulation cover, 344 switch,

[0067] 350 DC power supply, 351 charging port,

[0068] 360 valve, 361 control member. Detailed implementation mode

[0069] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0070] The terms "include" and "have" in the description and claims of the present utility model and any variations thereof are intended to cover non-exclusive inclusions. For example, a method or product including a series of technical features does not necessarily have to be limited to those technical features clearly listed, but may also include other technical features that can be included in the method or product and are not clearly listed.

[0071] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "front" and "rear" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0072] The present utility model will be introduced in detail below in conjunction with specific embodiments and the accompanying drawings.

[0073] Embodiment 1

[0074] As Figure 1 shown, the heating and cleaning machine of this embodiment includes a main machine 100, a hose 200 and a cleaning head 300.

[0075] The main machine 100 is configured with a cleaning liquid path for providing cleaning liquid and a dirty liquid path for creating a vacuum environment. The cleaning liquid path therein includes a cleaning container, a water pump and a preheating device. The cleaning container is used to hold the cleaning liquid, the water pump is used to transport the cleaning liquid, and the preheating device is used to preheat the cleaning liquid. The dirty liquid path includes a negative pressure pump and a dirty container. The negative pressure pump is used to generate negative pressure to suck the dirty liquid generated by cleaning, and the dirty container is used to hold the dirty liquid.

[0076] The hose 200 includes a liquid delivery pipe and a recovery pipe that are isolated from each other. The liquid delivery pipe and the recovery pipe can be two independent pipes arranged side by side. The liquid delivery pipe and the recovery pipe can also be an integrated pipe made into one body, and the latter is easier to connect.

[0077] The cleaning head 300 is as Figures 2 - 6 shown, and it hasFigure 4 The infusion channel 301 represented by a double-dashed line and the sewage suction channel 302 isolated from the infusion channel represented by a dashed line. The flow directions of the liquids in the infusion channel and the sewage suction channel are indicated by arrows. The infusion channel 301 of the cleaning head is connected to the cleaning liquid path of the main machine through the infusion tube of the hose, and the sewage suction channel of the cleaning head is connected to the dirty liquid path of the main machine through the recovery tube of the hose.

[0078] In particular, a heating device 340 is provided in the path of the infusion channel 301 of the cleaning head to heat the flowing cleaning liquid, and the heating device 340 is powered by a DC power supply 350 disposed on the cleaning head.

[0079] During operation, the cleaning liquid is conveyed from the cleaning liquid path of the main machine to the infusion channel of the cleaning head through the infusion tube of the hose and sprayed out from the cleaning head. At the same time, the vacuum (negative pressure or low pressure relative to the atmospheric pressure) generated by the dirty liquid path of the main machine sucks the dirty liquid generated by the cleaning from the cleaning area through the sewage suction port of the cleaning head, and is sucked back into the main machine through the sewage suction channel of the cleaning head and the recovery tube of the hose for collection. During this period, the heating device in the cleaning head can heat the flowing cleaning liquid to control the sprayed cleaning liquid at a relatively stable and ideal working temperature.

[0080] In this embodiment, a connecting pipe 210 is disposed at the end of the hose 200. The connecting pipe 210 is provided with two opposite elastic latches 220. Two corresponding through holes 3112 are provided on the rear wall of the cleaning head 300. When the connecting pipe 210 is inserted into the rear pipe portion of the cleaning head, the elastic latches 220 are respectively snapped into the corresponding through holes 3112 to connect the hose to the cleaning head through the connecting pipe. Moreover, the infusion tube of the hose and the infusion channel of the cleaning head are butted at the connection portion of the connecting pipe 210 and the cleaning head through a first sealing joint 230 provided on the connecting pipe and a second sealing joint 331 provided at the rear end of the cleaning head. The recovery tube of the hose and the sewage suction channel 302 of the cleaning head are directly communicated at the connection portion of the joint and the cleaning head. In this way, during storage, the cleaning head can be detached from the hose, and the hose can be coiled around the main machine, while during use, the cleaning head can be assembled to one end of the hose and ensure sealing.

[0081] As Figures 7 - 11As shown, in this embodiment, the heating device 340 includes a heat conduction module 341 having a heating chamber 3411 and a heating module 342. The heating chamber 3411 of the heat conduction module 341 is connected in series in the infusion channel 301 and forms an enlarged portion of the flow of the infusion channel. The heating module 341 is in thermal conduction cooperation with the heat conduction module 342. The heat conduction module has a placement cavity 3412. The heating module 342 is in the shape of a plate and is placed in the placement cavity 3412. The two side surfaces of the heating module 342 are in contact with the side walls of the placement cavity 3412, which can conduct heat more efficiently. The heat conduction module 341 is assembled by two heat conduction bodies 3413 to form an enlarged heating chamber in the infusion channel. Moreover, the heating device 340 is at least partially shielded by a heat shield 343.

[0082] In this embodiment, a valve 360 is provided in the path of the infusion channel 301 upstream of the heating device, and a control member 361 is configured for the valve to control the opening or closing of the valve. In the illustrated structure, the control member 361 is in the shape of a button. In the natural state, the valve is held in the closed state by the elastic force of the spring, and the cleaning liquid does not flow. When cleaning is required, the control member is pressed to open the valve to allow the cleaning liquid to flow.

[0083] In this embodiment, the cleaning head 300 includes a connecting pipe assembly 310 and an accessory 320 that are detachably assembled together. The connecting pipe assembly 310 and the accessory 320 are separately provided with a socket section 3211, a plug section 3111, a hook 313, and a hook portion 3212. The plug section is inserted into the socket section, and the hook hooks the hook portion to detachably assemble the connecting pipe assembly and the accessory together. Moreover, the heating device 340 and the DC power supply 350 are jointly arranged in the accessory 320 and are shielded inside the accessory. For the convenience of assembly, the part of the accessory for assembling the heating device and the DC power supply is set as an assembly structure, such as a detachable cover.

[0084] In this embodiment, the infusion channel 301 is docked at the connection part of the connecting pipe assembly 310 and the accessory 320 through a third sealing joint 332 located at the front end of the connecting pipe assembly and a fourth sealing joint located at the rear end of the accessory. The sewage suction channel 302 is directly communicated at the connection part of the connecting pipe assembly 310 and the accessory 320. The sealing performance during the assembly of the connecting pipe assembly and the accessory and the convenience during disassembly are increased.

[0085] For each of the sealing joints, a sealing ring is arranged at the contact part when they are docked in pairs. It includes but is not limited to the illustrated tubular structure.

[0086] The pipe assembly 310 includes a pipe body 311, which has an assembly cavity 314 and a pipe body cavity 315 that are isolated from each other. The valve 360 ​​and the operating member 361 are assembled in the assembly cavity 314 and are constrained by the cover 312. The operating member 361 is exposed outside the cover through the through hole on the cover for operation, and the cover shields its corresponding infusion channel in the cleaning head. The pipe body cavity 315 is located in the path of the sewage suction channel 302 of the cleaning head.

[0087] In different product configurations, an atomization module is provided in the path of the infusion channel for atomizing the cleaning liquid flowing therethrough. The atomization module is preferably an ultrasonic atomizer, so that the cleaning liquid has a stronger cleaning ability after atomization.

[0088] After the cleaning head is used for a long time, dirt will adhere to the dirt suction channel of the cleaning head, or the dirt suction channel is not conducive to storage due to moisture, so it is necessary to clean the cleaning head.

[0089] In this embodiment, the following techniques are used to achieve the disassembly of the accessories. Figures 16 - 17 The attachment 320 is the same as the structure shown in the figure, and includes a body 321 and a front cover 322 and has a working surface 323 facing the cleaned part during operation, the body has a partition wall 3213, the front cover 322 is fixed to the front side of the partition wall 3213, a gap 327 located in the path of the sewage suction channel 302 is maintained between the front cover 322 and the partition wall 3213, and sewage suction ports 3221 connected to the gap are distributed on the protruding surface 3223 constituting the working surface of the front cover, and the front cover 322 is detachably assembled to the body 321. Further, the body 321 is provided with a snap-fit ​​hole 3214, the rear end of the front cover 322 is provided with an elastic snap-fit ​​protrusion 3222, and a positioning hole 3224 is provided on the protruding surface 3223 constituting the working surface of the front cover, and the elastic snap-fit ​​protrusion 3222 is snapped into the snap-fit ​​hole 3214, and the positioning hole 3224 is positioned by the positioning protrusion 3241 provided on the brush extending therein, thereby, the front cover is fixedly assembled. When the elastic clamping protrusion 3222 is pressed into the gap 327 to make it disengage from the clamping hole 3214, the front cover 322 is moved forward and the positioning hole 3224 is forced to disengage from the positioning protrusion 3241 to remove the front cover. In addition, the accessory 320 includes a brush 324, a rear cover 325 and an atomizing nozzle 326. In this way, the accessory is configured as a split assembly structure, which is convenient for manufacturing each component according to a specific function, such as planting hair on the brush. The brush 324 is fastened to the body through a fastener and forms a working surface 323. The rear cover 325 is adjacent to the brush and is fixed to the rear side of the partition wall through a fastener. Therefore, the brush and the rear cover can be regarded as part of the body. The atomizing nozzle 326 is oriented in the same direction as the working surface 323 and is located at a retreated position relative to the working surface so that the atomizing nozzle maintains a certain distance from the cleaned position when the working surface contacts the cleaned position, thereby expanding the spraying area of ​​the cleaning liquid. The brush 324 is located between the atomizing nozzle 326 and the sewage suction port 3221.

[0090] When the cleaning head of this embodiment is working, the cleaning liquid transported from the infusion tube of the hose flows through the first sealing joint 230 at the front end of the hose, the second sealing joint 331 at the rear end of the connecting pipe assembly 310, the valve 360 inside the connecting pipe assembly, the third sealing joint 332 at the front end of the connecting pipe assembly, the sealing joint at the rear end of the accessory, and the heating device 340 inside the accessory in sequence, and then sprays out from the atomizing nozzle 326 for cleaning. The dirty liquid generated by cleaning is sucked in from the dirt suction port of the accessory and flows through the dirt suction channel of the cleaning head to the recovery pipe of the hose.

[0091] Embodiment 2

[0092] The heated cleaning machine of this embodiment is only different from the heated cleaning machine of Embodiment 1 in the structure of the cleaning head. As Figures 13 - 17 shown, for the cleaning head of this embodiment, the valve 360, the heating device 340, and the DC power supply 350 are centrally assembled in the connecting pipe assembly 310. Since the accessory 320 does not need to assemble the heating device and the DC power supply, the tubular structure for assembling the heating device and the DC power supply is omitted. Therefore, compared with the accessory of Embodiment 1, the accessory 320 of this embodiment becomes shorter.

[0093] Specifically, the connecting pipe assembly 310 includes a pipe body 311. The pipe body 311 has an assembly cavity 314 and a pipe body cavity 315 that are isolated from each other. The valve 360, the heating device 340, and the DC power supply 350 are jointly arranged in the assembly cavity 314, and the pipe body cavity 315 is located in the path of the dirt suction channel of the cleaning head.

[0094] In this embodiment, the valve 360 is located downstream of the heating device 340, and the control member 361 is arranged as in Embodiment 1 to control the opening or closing of the valve.

[0095] Moreover, a switch 344 is configured for the heating device 340, and a charging interface 351 is configured for the DC power supply 350. The switch 344 and the charging interface 351 are jointly arranged in the connecting pipe assembly 310 together with the DC power supply 350 and the heating device 340. This switch and charging interface can also be arranged in Embodiment 1.

[0096] The remaining structure of the cleaning head of this embodiment is the same as that of Embodiment 1 and will not be elaborated.

[0097] When the cleaning head of this embodiment is working, the cleaning liquid transported from the infusion tube of the hose flows through the first sealing joint 230 at the front end of the hose, the second sealing joint 331 at the rear end of the connecting pipe assembly 310, the heating device 340 inside the connecting pipe assembly, the valve 360 inside the connecting pipe assembly, the third sealing joint 332 at the front end of the connecting pipe assembly, and the fourth sealing joint at the rear end of the accessory in sequence, and then sprays out from the atomizing nozzle 326 on the accessory for cleaning. The dirty liquid generated by cleaning is sucked in from the dirt suction port of the accessory and flows through the dirt suction channel of the cleaning head to the recovery pipe of the hose.

[0098] In the above-mentioned Embodiment 1 and Embodiment 2, the technical solutions of configuring a DC power supply in the cleaning head to supply power to the heating device are both described. However, in other embodiments, an external power supply can also be used to supply power to the heating device. Moreover, preferably, when the host operates relying on the industrial frequency alternating current of the commercial power supply, a conversion circuit is provided in the host to convert the industrial frequency alternating current into direct current of a safe voltage and then supply power to the heating device through a wire. The wire for supplying power to the heating device in the cleaning head can be arranged in the hose and the cleaning head, and at the detachable positions such as the connection between the hose adapter and the rear end of the cleaning head, and the connection between the accessory and the adapter assembly, electrical coupling joints are used to connect to achieve the connection and disconnection of the circuit.

[0099] In the foregoing embodiments, in the flow path of the cleaning liquid, the valve, each sealing joint, the heating device and the atomizing nozzle are connected by tubes.

Claims

1. A cleaning head having an infusion channel (301) and a dirt suction channel (302) isolated from the infusion channel, characterized in that: A heating device (340) is provided in the path of the infusion channel (301) for heating the cleaning liquid flowing therethrough.

2. The cleaning head according to claim 1, characterized in that: The heating device (340) includes a heat conduction module (341) having a heating chamber (3411) and a heating module (342). The heating chamber (3411) of the heat conduction module is connected in series in the infusion channel (301) and forms an enlarged flow portion of the infusion channel. The heating module (342) is in thermal conduction cooperation with the heat conduction module (341).

3. The cleaning head according to claim 2, characterized in that: The heat conduction module (341) has a placement cavity (3412), and the heating module (342) is plate-shaped and placed in the placement cavity.

4. The cleaning head according to claim 2, characterized in that: The heat conduction module (341) is assembled by two heat conducting bodies (3413).

5. The cleaning head according to any one of claims 1-4, characterized in that: The heating device (340) is at least partially shielded by a heat insulation cover (343).

6. The cleaning head according to any one of claims 1-4, characterized in that: A valve (360) is provided in the path of the infusion channel (301) upstream or downstream of the heating device (340), and a control member (361) is configured for the valve (360) to control the opening or closing of the valve.

7. The cleaning head according to any one of claims 1 to 4, characterized in that: The cleaning head includes a connecting pipe assembly (310) and an accessory (320) detachably assembled together.

8. The cleaning head according to claim 7, characterized in that: The connecting pipe assembly (310) and the accessory (320) are separately provided with a socket section (3211) and a plug section (3111), as well as a hook (313) and a hooked portion (3212). The plug section (3111) is inserted into the socket section (3211), and the hook (313) hooks the hooked portion (3212) to detachably assemble the connecting pipe assembly (310) and the accessory (320) together.

9. The cleaning head according to claim 7, characterized in that: The heating device is powered by a DC power supply (350) configured in the cleaning head. The heating device (340) and the DC power supply (350) are jointly configured in the connecting pipe assembly (310) or the accessory (320).

10. The cleaning head according to claim 9, characterized in that: A switch (344) is configured for the heating device (340), and the switch (344) is jointly configured with the heating device (340) in the connecting pipe assembly (310) or the accessory (320).

11. The cleaning head according to claim 9, characterized in that: A charging interface (351) is configured for the DC power supply (350), and the charging interface (351) is jointly configured with the DC power supply (350) in the connecting pipe assembly (310) or the accessory (320).

12. The cleaning head according to claim 7, characterized in that: The connecting pipe assembly (310) includes a pipe body (311). The pipe body (311) has an assembly cavity (314) and a pipe body cavity (315) isolated from each other. The heating device (340) is configured in the assembly cavity (314), and the pipe body cavity (315) is located in the path of the dirt suction channel (302) of the cleaning head.

13. The cleaning head according to claim 7, characterized in that: The accessory (320) includes a main body (321) and a front cover (322) and has a working surface (323) facing the part to be cleaned during operation. The main body (321) has a partition wall (3213). The front cover (322) is fixed to the front side of the partition wall (3213). A gap (327) located in the path of the dirt suction channel (302) is maintained between the front cover (322) and the partition wall (3213). The working surface (323) is distributed with dirt suction ports (3221) communicating with the gap. The front cover (322) is detachably assembled.

14. The cleaning head according to claim 13, characterized in that: The body (321) is provided with a snap-fitting hole (3214), the rear end of the front cover (322) is provided with an elastic snap-fitting protrusion (3222), the front cover (322) has a protruding surface (3223) constituting a working surface, the protruding surface (3223) is provided with a positioning hole (3224), the elastic snap-fitting protrusion (3222) is snapped into the snap-fitting hole (3214), the positioning hole (3224) is positioned by a positioning protrusion (3241) extending therein, and when the elastic snap-fitting protrusion (3222) is disengaged from the snap-fitting hole (3214), the front cover is moved forward and the positioning hole (3224) is forced to be disengaged from the positioning protrusion (3241) to remove the front cover.

15. The cleaning head according to claim 14, characterized in that: The accessory (320) comprises a brush (324), a rear cover (325) and an atomizing nozzle (326); the brush (324) forms a working surface (323); the rear cover (325) is adjacent to the brush and fixed to the rear side of the partition wall (3213); the atomizing nozzle (326) is oriented in the same direction as the working surface (323) and is located at a retreated position relative to the working surface; the brush (324) is located between the atomizing nozzle (326) and the sewage suction port (3221).

16. The cleaning head according to claim 7, characterized in that: The infusion channel (301) is butted at the connection position of the connecting pipe assembly (310) and the accessory (320) via a pair of sealing joints, and the sewage suction channel (302) is directly connected at the connection position of the connecting pipe assembly (310) and the accessory (320).

17. The cleaning head according to any one of claims 1-4, characterized in that: The heating device is powered by a DC power supply (350) configured on the cleaning head, and the heating device (340) and the DC power supply (350) are shielded inside the cleaning head (300).

18. The cleaning head according to any one of claims 1-4, characterized in that: The cleaning head (300) is provided with a cover (312), and the cover (312) shields the corresponding infusion channel within the cleaning head.

19. The cleaning head according to any one of claims 1-4, characterized in that: An atomization module is provided in the path of the infusion channel (301) for atomizing the cleaning liquid flowing through.

20. Heating cleaning machine, characterized in that include: A host (100), the host being provided with a cleaning liquid circuit for supplying cleaning liquid and a dirty liquid circuit for generating a vacuum environment; A hose (200), comprising an infusion tube and a recovery tube which are separated from each other; The cleaning head (300) described in any one of claims 1 to 19, wherein the infusion channel of the cleaning head is connected to the clean liquid path of the host through the infusion tube of the hose, and the sewage suction channel of the cleaning head is connected to the dirty liquid path of the host through the recovery tube of the hose.

21. The heating and cleaning machine according to claim 20, characterized in that: The hose (200) is connected to the cleaning head (300) via the connecting pipe (210); the infusion pipe of the hose and the infusion channel of the cleaning head are butted at the connection part between the connector and the cleaning head via a pair of sealing connectors; the recovery pipe of the hose and the sewage suction channel of the cleaning head are directly connected at the connection part between the connector and the cleaning head.

22. The heating and cleaning machine according to claim 20, characterized in that: The cleaning liquid circuit in the main machine includes a preheating device for preheating the cleaning liquid.

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