CN217393192U - Suction nozzle tool for surface cleaning apparatus - Google Patents

Abstract

The application provides a suction nozzle tool for surface cleaning equipment, which comprises a shell, a first interface for loading suction negative pressure, a suction nozzle arranged on the shell and provided with a suction opening, a recovery channel positioned between the suction opening and the first interface, a second interface for supplying liquid, a liquid sprayer arranged on the shell and used for applying liquid on a surface to be cleaned, and a liquid supply channel positioned between the second interface and the liquid sprayer, and is characterized in that at least one liquid return port is arranged on the shell, the at least one liquid return port is in fluid communication with the recovery channel, and the at least one liquid return port and the suction nozzle are respectively positioned on two opposite sides of the liquid sprayer; the suction nozzle tool effectively prevents the cleaning solution leaked from the liquid sprayer from flowing down along the shell of the suction nozzle tool or flowing to the hand held on the suction nozzle tool by a user by arranging the liquid return port communicated with the recovery channel and the blocking arm protruding out of the liquid sprayer at the lower side of the liquid sprayer, so that the cleanliness of the shell of the suction nozzle tool is ensured, and the use comfort of the user is improved.

Description

Suction nozzle tool for surface cleaning apparatus

Technical Field

The present invention relates to a suction nozzle tool, particularly for a suction nozzle tool having a suction-type surface cleaning apparatus.

Background

"wet" surface cleaning apparatus for dispensing a cleaning liquid to a surface and removing dry or wet soils from a surface. Such surface cleaning apparatuses typically have a liquid delivery system including a liquid supply tank and a recovery system including at least a suction motor and a dirty liquid recovery tank. To meet the cleaning needs of different cleaning surfaces, such devices are often equipped with or carry a variety of different nozzle-like implements for the user to select for use as desired. Usually, the nozzle for spraying cleaning liquid and the suction nozzle for sucking the cleaning surface are arranged on the suction nozzle tool, the cleaning surface is sucked by the vertical movement of the suction nozzle tool from top to bottom, when the suction nozzle tool is moved to clean, the suction nozzle is positioned at the upper side of the nozzle, the nozzle is positioned at the upper side of the handheld position of a user, when the nozzle sprays cleaning liquid, partial water drops can flow to the handheld position of the user along the shell of the suction nozzle tool because the pressure is insufficient and are influenced by gravity, and the use feeling of the user is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, it is an object of the present application to provide a nozzle tool in which cleaning liquid does not flow to a user's hand-held position during cleaning.

In order to achieve the above object, the present application provides the following technical solutions: a nozzle tool for use with a surface cleaning apparatus, the nozzle tool comprising a housing, a first port for receiving suction, a nozzle having a suction opening and disposed on the housing, a recovery passage disposed between the suction opening and the first port, a second port for supplying fluid, a spray dispenser disposed on the housing for applying fluid to a surface to be cleaned, and a fluid supply passage disposed between the second port and the spray dispenser, the housing having at least one fluid return port exposed therefrom, the at least one fluid return port being in fluid communication with the recovery passage, the at least one fluid return port and the nozzle being disposed on opposite sides of the spray dispenser.

In the above technical solution, it is further preferable that the at least one liquid return port is adjacent to the liquid sprayer.

In the above technical solution, it is further preferable that the housing includes a blocking wall, and at least a portion of the blocking wall protrudes outward relative to the liquid sprayer; the at least one liquid return port is adjacent to the baffle wall and is contracted on the inner side of the baffle wall, so that the liquid flowing down from the liquid sprayer can be received by the baffle wall and guided into the at least one liquid return port.

In the above technical solution, it is further preferable that at least a portion of the at least one liquid return port is defined by the barrier wall.

In the above aspect, it is further preferable that the dispenser includes a variable spray body rotatably mounted on the housing and adapted to allow a user to adjust a liquid spray pattern of the dispenser by a rotating means.

In the above technical solution, it is further preferable that the variable liquid ejecting body is configured to be capable of ejecting the liquid toward the surface to be cleaned in a concentrated ejection manner and to be capable of ejecting the liquid toward the surface to be cleaned in a dispersed ejection manner.

In the above-described aspect, it is further preferred that at least one wiper lip is arranged on the suction opening and is pivotably mounted on the housing.

In the above technical solution, it is further preferable that the suction nozzle tool includes a sponge auxiliary cleaning strip, and the sponge auxiliary cleaning strip is detachably mounted on the housing.

In the above technical solution, it is further preferable that the housing includes a head portion moving on a surface to be cleaned and having a rectangular structure and a rod portion extending from a middle of the head portion, the suction nozzle is located at the head portion, and the liquid sprayer and the at least one liquid return port are located at the rod portion.

Compare in prior art, the suction nozzle instrument that this application provided sets up the liquid return mouth and the protrusion in the fender arm of sprayer of intercommunication recovery channel through the downside at sprayer, effectively prevents that the cleaning solution of sprayer weeping from flowing down or flowing the hand that the user gripped on the suction nozzle instrument along the casing of suction nozzle instrument, guarantees the cleanliness of suction nozzle instrument casing, improves user's use comfort.

Drawings

FIG. 1 is a perspective view of a nozzle tool of the present application mounted to a surface cleaning apparatus;

FIG. 2 is a schematic perspective exploded view of the surface cleaning apparatus of FIG. 1;

FIG. 3 is a perspective view of the nozzle tool of FIG. 1;

FIG. 4 is an enlarged partial schematic view at P of FIG. 3;

FIG. 5 is a front view of the nozzle tool of FIG. 3;

FIG. 6 is a cross-sectional view taken along line F-F of FIG. 5;

FIG. 7 is a cross-sectional view taken along line E-E of FIG. 5;

FIG. 8 is a schematic view of the nozzle means of FIG. 3 in a position for cleaning on a hard surface to be cleaned.

Wherein: 100. a suction nozzle tool; 1. a housing; 11. a head portion; 12. a rod portion; 121. an installation end; 13. a retaining wall; 14. a concave cavity; 15. a sponge-assisted cleansing bar; 2. a first interface; 3. a suction nozzle; 31. a suction opening; 311. a first scraping lip; 3111. a first lip edge; 3112. a recess; 312. a second scraping lip; 3121. a second lip edge; 4. a recovery channel; 5. a second interface; 6. a liquid sprayer; 61. a variable spray main body; 62. a nozzle; 63. an unlocking button; 64. a latch hook; 7. a liquid supply channel; 8. a liquid return port; 200. a surface cleaning device; 91. a housing; 92. a recycling bin; 93. a supply tank; 94. a suction motor; 95. a battery pack; 96. a control key; 300. an extension tube; 301. a flexible hose; 302. a hard tube; 400. hard surface to be cleaned.

Detailed Description

To explain the technical content, structural features, attained objects and functions of the present invention in detail, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

The present application provides a nozzle tool for a surface cleaning apparatus, such as the nozzle tool example shown in FIG. 1, wherein the nozzle tool 100 can be assembled to an end of an extension tube 300 and fluidly connected to the surface cleaning apparatus 200 via the extension tube 300. The extension tube 300 is at least partially flexible to allow for random steering of the nozzle tool 100 relative to the surface cleaning apparatus 200. In this example, extension tube 300 comprises a flexible hose 301 and a rigid tube 302 that are removably attachable to each other, one end of flexible hose 301 being removably coupled to surface cleaning apparatus 200 and the other end being removably coupled to one end of rigid tube 302; the other end of the wand 302 is removably coupled to the nozzle tool 100. The hard tube 302 is held by hand, so that the cleaning of the high surface to be cleaned, such as the window glass, can be realized.

As shown in fig. 2 and 8, the surface cleaning apparatus 200 is a portable apparatus including a housing 91, a recovery tank 92 for receiving dirty liquid, a supply tank 93 for storing cleaning liquid, a suction motor 94, a battery pack 95, and a water pump (not shown). A recovery box 92, a supply box 93, a suction motor 94 and a battery pack 95 are detachably mounted on the machine shell 91, the suction motor 94 is in fluid communication with the recovery box 92, the recovery box 92 is in fluid communication with the suction nozzle tool 100 through an extension pipe 300, the suction motor 94 applies suction negative pressure to the suction nozzle tool 100 through suction force, so that the dirty liquid on the hard surface 400 to be cleaned is collected into the recovery box 92 by the suction nozzle tool 100; the water pump pumps the cleaning liquid in the supply tank 93 to the suction nozzle tool 100 through the extension pipe 300, the battery pack 95 supplies power to the suction motor 94 and the water pump, the casing 91 is further provided with a plurality of control keys 96, and a user controls the machine to operate through the control keys 96.

The following terms of orientation describing the relative positional relationship, such as "up", "down", "front", "rear", "left", "right", are based on the viewing angle when the user carries the nozzle tool 100 and performs cleaning work with the head 11 positioned on the upper side of the stem 12.

As shown in fig. 3 and 6, the nozzle tool 100 includes a housing 1, a nozzle 3, a liquid injector 6, and at least one liquid return port 8 disposed on the housing 1, a first connector 2 in fluid communication with the nozzle 3 and the liquid return port 8, and a second connector 5 for supplying liquid to the liquid injector 6. The housing 1 comprises a head 11 movable over a surface to be cleaned and a stem 12 extending centrally from the head 11. The head 11 has a rectangular structure, and an end of the shaft 12 away from the head 11 is a mounting end 121, and the first interface 2 and the second interface 5 are formed at the mounting end 121. The suction nozzle 3 is positioned at the head 11, and the liquid sprayer 6 and the liquid return port 8 are positioned at the rod 12. The suction nozzle 3 and the liquid return port 8 are respectively positioned at two opposite sides of the liquid sprayer 6, such as: the suction nozzle 3 is positioned above the liquid sprayer 6, and the liquid return port 8 is positioned below the liquid sprayer 6; in this example, the liquid return port 8 is located immediately adjacent to the liquid sprayer 6. The suction nozzle 3 has a suction opening 31, a recovery channel 4 formed in the housing 1 is formed between the suction opening 31 and the first connector 2, the liquid return port 8 is in fluid communication with the recovery channel 4, and a liquid supply channel 7 formed in the housing 1 is formed between the liquid sprayer 6 and the second connector 5. In other embodiments, the nozzle tool may also be provided with a plurality of liquid return ports, and the plurality of liquid return ports can satisfy the requirement of recovering the liquid flowing down from the liquid sprayer in a wider range.

In this way, the first port 2 will be in fluid communication with the recovery tank 92 of the surface cleaning apparatus 200 via the extension tube 300, and the second port 5 will be in fluid communication with the supply tank 93 of the surface cleaning apparatus 200 via the extension tube 300. When the suction motor 94 is started, suction negative pressure is applied to the first connector 2, the suction nozzle 3 sucks the dirt on the hard surface 400 to be cleaned into the recovery channel 4 under suction force, the liquid return port 8 also sucks the liquid nearby into the recovery channel 4, and the dirt entering the recovery channel 4 is sucked into the recovery tank 92 of the surface cleaning device 200 through the extension pipe 300. The water pump conveys the cleaning liquid in the supply tank 93 to the liquid supply channel 7 through the communicated second connector 5, and the liquid sprayer 6 communicated with the liquid supply channel 7 sprays the cleaning liquid to the surface to be cleaned.

As further shown in fig. 1, the nozzle tool 100 further includes a sponge auxiliary cleaning strip 15 detachably mounted on the housing 1, the sponge auxiliary cleaning strip 15 being provided on the head 11 extending in the left-right direction on the housing 1, the sponge auxiliary cleaning strip 15 being located immediately below the nozzle 3 and adjacent to the nozzle 3; when the nozzle tool 100 is used to clean a hard surface 400 to be cleaned, the head 11 will move in a direction from top to bottom, and the sponge auxiliary cleaning strip 15 will first rub against the surface to be cleaned and then pick up dirt and liquid by the nozzle 3.

As shown in fig. 4 to 7, the housing 1 has a cavity 14 for receiving the liquid spray 6, the liquid spray 6 is used for spraying the cleaning liquid supplied from the liquid supply passage 7 to the surface to be cleaned, the liquid spray 6 includes a variable liquid spray body 61 and a nozzle 62 fixedly installed in the cavity 14, the variable liquid spray body 61 is screwed to the nozzle 62, and the variable liquid spray body 61 is rotatable on the housing 1 about an axis X ₁ A variable liquid ejecting body 61 reciprocally rotatable on the nozzle 62 between a first position and a second position to change a liquid ejection manner by adjusting a shape of the ejected liquid; such as: when the variable liquid ejecting main body 61 rotates to the first position, the variable liquid ejecting main body 61 ejects the linear liquid outwards, that is, the liquid is sprayed to the hard surface to be cleaned 400 in a concentrated spraying manner; when the variable liquid ejecting body 61 is rotated to the second position, the variable liquid ejecting body 61 ejects fan-shaped liquid beams outward, that is, the liquid is sprayed onto the hard surface to be cleaned 400 in a dispersed manner. A user can adjust the liquid spray pattern of the liquid sprayer 6 as desired by rotating the variable spray body 61.

In this embodiment, the housing 1 is formed with a liquid return port 8 and a baffle wall 13 on the underside of the liquid spray 6. Defined by a retaining wall 13. Between the liquid return port 8 and the recovery passage 4, there is at least one connection passage 81, and the connection passage 81 bypasses a portion of the nozzle 62 connected to the casing 1 and supplies the liquid supplied from the liquid return port 8 to the recovery passage 4. The baffle wall 13 is positioned at the lower side of the liquid return port 8, part of the baffle wall 13 protrudes relative to the liquid sprayer 6 in the direction away from the rod part 12, the liquid return port 8 is retracted at the inner side of the baffle wall 13, and part of the liquid return port 8 is limited by the upper surface of the baffle wall 13. This enables the baffle wall 13 to guide the liquid dropped from the liquid ejector 6 to the liquid return port 8. During the process of spraying the liquid onto the surface to be cleaned by the liquid sprayer 6, a part of the liquid falls under the influence of gravity when not reaching the surface to be cleaned, and the part of the liquid falls down along the rod part 12 and is intercepted by the baffle wall 13, and then is sucked into the recovery channel 4 from the liquid return port 8. Therefore, the baffle wall 13 can block the liquid flowing down from the liquid sprayer 6, and the part of the liquid is sucked into the recovery passage 4 through the liquid return port 8.

The lower portion of the lever 12 is provided with a locking mechanism including an unlocking knob 63 and a locking hook 64, which is capable of locking the lever 12 of the suction nozzle tool 100 to a connecting pipe, such as the extension pipe 300, and the locking relationship is released by operating the unlocking knob 63.

As shown in fig. 3, 5 and 6, the suction nozzle 3 is configured with a flexible first scraping lip 311 and a second scraping lip 312 extending parallel to the first scraping lip 311, the first scraping lip 311 and the second scraping lip 312 protrude from the housing 1, and the first scraping lip 311 and the second scraping lip 312 define the suction opening 31 therebetween, and the second scraping lip 312 is swingably mounted on the housing 1. The first scraping lip 311 has a first lip edge 3111 projecting frontward of the housing 1 and capable of abutting on the hard surface to be cleaned 400, the second scraping lip 312 has a second lip edge 3121 projecting frontward of the housing 1 and capable of abutting on the hard surface to be cleaned 400, the first lip edge 3111 and the second lip edge 3121 each extend in the left-right direction, and the front end portion of the second lip edge 3121 is located on the upper side of the suction opening 31 and the front end portion of the first lip edge 3111. The front edge of the first lip edge 3111 is formed with a plurality of notches 3112 spaced apart in the left-right direction, and the plurality of notches 3112 communicate with the suction opening 31. The nozzle tool 100 moves from top to bottom on the hard surface 400 to clean the hard surface 400, the first lip edge 3111 is closely attached to the hard surface 400, the plurality of notches 3112 on the first lip edge 3111 allow the liquid and air adhered to the hard surface 400 to flow into the suction opening 31 under suction force, the second lip edge 3121 limits the liquid and air passing through the plurality of notches 3112 in the suction opening 31, so as to prevent the liquid from remaining on the hard surface 400 cleaned by the nozzle tool 100, and the suction motor 94 sucks the liquid and air in the suction opening 31 into the recycling box 92.

As shown in fig. 8, when the nozzle tool 100 performs a cleaning operation on the hard surface to be cleaned 400, the nozzle tool 100 performs cleaning from top to bottom while the first lip edge 3111 and the second lip edge 3121 are in close contact with the hard surface to be cleaned 400, wherein the first lip edge 3111 can be freely rotated so that the first lip edge 3111 and the second lip edge 3121 are always in close contact with the hard surface to be cleaned 400, and the strong deformation of the first scraping lip 311 ensures the cleaning function of the nozzle tool 100 on the hard surface to be cleaned 400. When the liquid and part of the liquid sprayed from the liquid sprayer 6 fall downwards, the lower baffle wall 13 can baffle the part of the liquid falling downwards and then suck the part of the liquid into the recovery channel 4 through the liquid return port 8, and the phenomenon that the flowing liquid continues to flow downwards to pollute or wet the working hand of a user operating the suction nozzle can be avoided.

According to the suction nozzle tool 100, the liquid return port 8 communicated with the recovery channel 4 and the baffle wall 13 protruding out of the liquid sprayer 6 are arranged on the lower side of the liquid sprayer 6, so that liquid leaked from the liquid sprayer 6 can be effectively prevented from flowing down along the shell 1 of the suction nozzle tool 100 or flowing to a hand of a user holding the suction nozzle tool 100, the cleanliness of the shell of the suction nozzle tool is guaranteed, and the use comfort of the user is improved.

The basic principle, the main features of the invention and the advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims, specification and equivalents thereof.

Claims (10)

1. Suction nozzle tool for a surface cleaning apparatus, which suction nozzle tool (100) comprises a housing (1), a first port (2) for applying suction underpressure, a suction nozzle (3) arranged in the housing (1) and having a suction opening (31), a recovery channel (4) between the suction opening (31) and the first port (2), a second port (5) for supplying liquid, a liquid spray (6) arranged in the housing (1) for applying liquid to a surface to be cleaned, and a liquid supply channel (7) arranged between the second port (5) and the liquid spray (6), characterized in that the housing (1) is provided with at least one liquid return opening (8) exposed, which at least one liquid return opening (8) is in fluid communication with the recovery channel (4), which at least one liquid return opening (8) and the suction nozzle (3) are respectively arranged at opposite sides of the liquid spray (6) And (3) side.

2. A nozzle tool according to claim 1, characterized in that said at least one liquid return port (8) is located in close proximity to said liquid spray (6).

3. A nozzle tool according to claim 1, characterized in that said housing (1) comprises a wall (13), said wall (13) at least partially protruding outwardly with respect to said spray (6); the at least one liquid return port (8) is adjacent to the baffle wall (13) and is contracted at the inner side of the baffle wall (13), so that the liquid flowing down from the liquid sprayer (6) can be intercepted by the baffle wall (13) and guided into the at least one liquid return port (8).

4. A nozzle tool according to claim 3, characterized in that at least part of said at least one liquid return opening (8) is defined by said barrier wall (13).

5. A nozzle unit according to claim 1, wherein said liquid sprayer (6) comprises a variable liquid spray body (61), said variable liquid spray body (61) being rotatably mounted on said housing (1) and being adapted to allow a user to adjust a liquid spray pattern of said liquid sprayer (6) by rotating means.

6. A nozzle unit according to claim 5, wherein said variable liquid ejecting body (61) is configured to eject the liquid toward the surface to be cleaned in a concentrated ejection manner and to eject the liquid toward the surface to be cleaned in a dispersed ejection manner.

7. A nozzle tool according to claim 1, characterized in that at least one scraping lip (311, 312) is arranged on the suction opening (31).

8. Nozzle device according to claim 7, characterized in that one of said wiping lips (311, 312) is pivotably mounted on said housing (1).

9. A nozzle tool according to claim 1, wherein said nozzle tool (100) comprises a sponge auxiliary cleaning strip (15), said sponge auxiliary cleaning strip (15) being detachably mounted to said housing (1).

10. A nozzle tool according to claim 1, characterized in that said housing (1) comprises a head (11) moving over the surface to be cleaned and having a rectangular configuration and a stem (12) extending from the middle of said head (11), said nozzle (3) being located at said head (11), said liquid spray (6) and said at least one liquid return port (8) being located at said stem (12).

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