Surface cleaning device and concentrated steam shot accessory for surface cleaning device

Abstract

An accessory for a surface cleaning device includes a steam inlet connected to a steam supply interface of the surface cleaning device. A shot accessory housing that has a rear end is connected to a main body of the surface cleaning device. A steam concentrating channel member is provided inside the shot accessory housing. The steam concentrating channel member includes a channel that extends along a linear channel axis. A front end of the channel forms a steam outlet and a rear end of the channel forms the steam inlet. A tapered hole section is located between the steam inlet and the steam outlet and is tapered toward the steam outlet. The accessory is configured such that the steam outlet faces a to-be-cleaned surface in an unobstructed manner along a shooting direction.

1 - 20 . (canceled) 
     
     
         21 . An accessory for a surface cleaning device, comprising:
 a steam inlet connected to a steam supply interface of said surface cleaning device;   a shot accessory housing having a rear end connected to a main body of said surface cleaning device;   a steam concentrating channel member provided inside the shot accessory housing, wherein the steam concentrating channel member includes a channel extending along a linear channel axis, and wherein a front end of the channel forms a steam outlet and a rear end of the channel forms the steam inlet; and   a tapered hole section located between the steam inlet and the steam outlet and tapered toward the steam outlet, wherein said accessory is configured such that the steam outlet faces a to-be-cleaned surface in an unobstructed manner along a shooting direction.   
     
     
         22 . The accessory of  claim 21 , wherein the steam concentrating channel member is an overmolded integrated member including a channel member main body and a single nozzle provided in the front end of the channel along the linear channel axis. 
     
     
         23 . The accessory of  claim 22 , wherein the single nozzle is made of metal. 
     
     
         24 . The accessory of  claim 22 , further comprising:
 a nozzle flange extending in a radial direction and embedded in the channel member main body.   
     
     
         25 . The accessory of  claim 22 , further comprising:
 a first tapered hole formed in the channel member main body; and   a second tapered hole formed in the single nozzle, wherein the first tapered hole and the second tapered hole are connected along the linear channel axis.   
     
     
         26 . The accessory of  claim 25 , wherein the steam outlet is formed at a front end of the second tapered hole, and wherein a tapered angle of the second tapered hole is greater than a tapered angle of the first tapered hole. 
     
     
         27 . The accessory of  claim 22 , further comprising:
 a connection protruding column provided inside the shot accessory housing.   
     
     
         28 . The accessory of  claim 27 , wherein a rear end of the channel member main body forms a connection flange, the connection flange being connected to the connection protruding column by a connecting screw. 
     
     
         29 . The accessory of  claim 22 , further comprising:
 a stop portion formed inside a front end of the shot accessory housing.   
     
     
         30 . The accessory of  claim 29 , wherein a front end of the channel member main body forms an abutting portion that abuts the stop portion. 
     
     
         31 . The accessory of  claim 30 , further comprising:
 a front end aperture formed at the front end of the shot accessory housing, wherein the channel member main body includes an extension section that extends forward from the abutting portion and passes through the front end aperture.   
     
     
         32 . The accessory of  claim 31 , further comprising:
 a contact-type auxiliary cleaning accessory which is selectively connected, wherein the contact-type auxiliary cleaning accessory has a connecting sleeve on the extension section of the channel member main body.   
     
     
         33 . The accessory of  claim 32 , wherein the contact-type auxiliary cleaning accessory includes at least one of a circular brush accessory, a rectangular brush accessory, and a shovel-like accessory. 
     
     
         34 . The accessory of  claim 33 , wherein the extension section includes a first extension section and a second extension section, the second extension section extending forward from the first extension section, and wherein a diameter of the second extension section is less than a diameter of the first extension section. 
     
     
         35 . The accessory of  claim 34 , further comprising:
 a sealing ring assembly provided on an outer surface of the extension section, the sealing ring assembly including a first sealing ring provided on the first extension section and a second sealing ring provided on the second extension section.   
     
     
         36 . A surface cleaning device, comprising:
 a main body having a cleaning solution supply tank, a recovery tank, and a steam generating device connected to the cleaning solution supply tank;   a hose connected to the recovery tank and a wand connected to the hose;   a steam supply pipe provided in the hose and the wand, wherein a first end of the steam supply pipe is connected to the steam generating device;   a steam supply interface connected to a second end of the steam supply pipe;   a shot accessory housing having a rear end connected to a main body of said surface cleaning device;   a steam concentrating channel member provided inside the shot accessory housing, wherein the steam concentrating channel member includes a channel extending along a linear channel axis, and wherein a front end of the channel forms a steam outlet and a rear end of the channel forms a steam inlet; and   a tapered hole section located between the steam inlet and the steam outlet and tapered toward the steam outlet, wherein the steam outlet faces a to-be-cleaned surface in an unobstructed manner along a shooting direction.   
     
     
         37 . The surface cleaning device of  claim 36 , wherein the wand is provided with a locking button. 
     
     
         38 . The surface cleaning device of  claim 37 , wherein a button aperture in cooperation with the locking button is provided on the shot accessory housing. 
     
     
         39 . The surface cleaning device of  claim 36 , further comprising:
 a vent formed on the shot accessory housing such that an interior of the hose is in communication with an external environment through the vent.   
     
     
         40 . The surface cleaning device of  claim 26 , further comprising
 a steam chamber cleaning accessory selectively connected to the wand of the main body of said surface cleaning device.