CN217610802U - Soft and hard dual-purpose pipe and dust collector - Google Patents

Abstract

The utility model relates to a soft or hard dual-purpose pipe and dust catcher, it can realize that the accessory is dual-purpose through the mode that hose and hard tube combine, helps reducing accessory quantity, and then reduces packing volume, portable transportation. This soft or hard dual-purpose pipe includes: a hose; a wand assembly, wherein the wand assembly comprises a first wand in communication with the first end of the hose and a second wand in communication with the second end of the hose; and a lock mechanism, wherein the lock mechanism is disposed in the hard tube assembly and is operated to switch between a locked state and an unlocked state, wherein when the lock mechanism is operated to be in the locked state, the first hard tube is rigidly connected to the second hard tube by the lock mechanism so that the soft and hard dual-purpose tube is in a hard tube state; when the lock mechanism is operated to be in the unlocking state, the first hard tube is flexibly connected to the second hard tube through the hose, so that the soft and hard tube is in a hose state.

Description

Soft and hard dual-purpose pipe and dust collector

Technical Field

The utility model relates to the technical field of cleaning appliances, in particular to a soft and hard dual-purpose pipe and a dust collector.

Background

Vacuum cleaners have been widely used and popular as an important cleaning implement. A multifunctional dust collector with blowing and sucking functions appears in the existing market, has a dust collection function when being integrally combined, and is used as a common dust collector; after the main wind power component is disassembled, the air blower has the air blowing function and can be used as an air blower.

However, the existing multifunctional vacuum cleaners often have different requirements for the air outlet connection pipe when performing different operations, for example, when performing a dust suction operation, the existing multifunctional vacuum cleaners usually need to connect a hose so as to perform a dust suction operation in multiple directions and multiple angles; when the existing multifunctional dust collector performs blowing operation, the existing multifunctional dust collector is usually required to be held by a hand, the closer the air outlet is to the operating surface, the better the blowing effect is, and at the moment, the air pipe with certain hardness needs to be connected. Like this, current multi-functional dust catcher is under two kinds of demands, and the whole accessory of product increases, and the cost rises, and certainly still further increase packing volume is unfavorable for carrying the transportation.

SUMMERY OF THE UTILITY MODEL

An advantage of the utility model is that a soft or hard dual-purpose pipe and dust catcher, it can realize the accessory is dual-purpose through the mode that hose and hard tube combine, helps reducing accessory quantity, and then reduces packing volume, portable transportation.

Another advantage of the present invention is to provide a hose and a vacuum cleaner, wherein, in an embodiment of the present invention, the hose and the vacuum cleaner can be switched between a hard hose state and a soft hose state through an operation locking mechanism, without configuring a plurality of air pipes with different hardness.

Another advantage of the present invention is to provide a hose and a vacuum cleaner, wherein, in an embodiment of the present invention, the hose and the vacuum cleaner can retract into the hose assembly when the hose is in a hard state, so as to shorten the length and reduce the packaging volume.

Another advantage of the present invention is to provide a hose and a vacuum cleaner, wherein, in an embodiment of the present invention, the hose and the vacuum cleaner can stretch out the hose from the pipe of the hose assembly when the hose is in a hose state, so as to increase the length of the hose and facilitate multi-directional and multi-angle dust collection operations.

Another advantage of the present invention is to provide a hose and a vacuum cleaner, wherein expensive materials or complicated structures are not required to be used in the present invention in order to achieve the above advantages or purposes. Therefore, the utility model discloses successfully and effectively provide a solution, not only provide a simple dual-purpose pipe of soft or hard and dust catcher, still increased simultaneously the practicality and the reliability of dual-purpose pipe of soft or hard and dust catcher.

In order to realize the utility model discloses an above-mentioned at least advantage or other advantages and purpose, the utility model provides a soft or hard dual-purpose pipe, include:

a hose;

a wand assembly, wherein the wand assembly comprises a first wand in communication with the first end of the hose and a second wand in communication with the second end of the hose; and

a lock mechanism, wherein the lock mechanism is disposed in the hard tubing assembly and the lock mechanism is operated to switch between a locked state and an unlocked state, wherein when the lock mechanism is operated to be in the locked state, the first hard tubing is rigidly connected to the second hard tubing by the lock mechanism to place the duel tubing in a hard tubing state; when the lock mechanism is operated to be in the unlocking state, the first hard pipe is flexibly connected to the second hard pipe through the hose, so that the hard and soft pipes are in a hose state.

According to an embodiment of the present invention, when the dual-purpose hose is in the hard hose state, the soft hose is covered by the hard hose assembly; when the hose is in the hose state, the hose is suitable for being partially exposed outside the hard pipe assembly.

According to an embodiment of the present invention, the hose has a telescopic structure, wherein when the lock mechanism is in the locked state, the hose is retracted into the conduit of the hard tube assembly; when the lock mechanism is in the unlocked state, and when the first hard tube and the second hard tube are separated from each other, the hose extends out of the pipeline of the hard tube assembly so as to be positioned between the first hard tube and the second hard tube.

According to the utility model discloses an embodiment, the hose include the flexible pipe wall and set up in elasticity skeleton in the flexible pipe wall, wherein work as when the hose takes place to stretch out and draw back under the exogenic action, elasticity deformation takes place for elasticity skeleton makes in order to save elastic potential energy after external force removes the hose resumes to natural state.

According to the utility model discloses an embodiment, the hose the elasticity skeleton is pressure spring or extension spring.

According to an embodiment of the utility model, the latch mechanism is the spin lock mechanism, wherein the spin lock mechanism including rotationally set up in the catch of first hard tube, set up in the spring bolt of catch and set up correspondingly in the lock way of second hard tube, wherein the lock way have along the unlocking groove of second hard tube axial extension with certainly the unlocking groove along the locking groove of second hard tube circumferential extension, and the lock way the unlocking groove with the locking groove all with the spring bolt phase-match, in order through for first hard tube is rotatory the catch makes the latch mechanism be in the locked state with switch between the unlocked state.

According to the utility model discloses an embodiment, in the lock way keep away from on the locking groove the tip of unblock groove widens suddenly to form spacing end.

According to an embodiment of the present invention, the twist-lock mechanism further comprises a tongue provided in the locking ring and a slide correspondingly provided in the first hard tube, wherein the slide comprises a rotation groove extending along the first hard tube circumferential direction and a disassembly groove extending from the rotation groove along the first hard tube axial direction, and the rotation groove and the disassembly groove of the slide all match with the tongue.

According to the utility model discloses an embodiment, in the slide the degree of depth of swivelling chute is greater than the degree of depth in dismouting groove.

According to an embodiment of the invention, the locking mechanism is a latching mechanism, wherein the latching mechanism comprises a lock hook pivoted to the first rigid tube and a lock groove provided in the second rigid tube, and the lock hook is adapted to releasably engage the lock groove, so that the latching mechanism is in the locked state.

According to the utility model discloses an embodiment, kayser mechanism the lock collude include with the pin joint portion of first hard tube pin joint, certainly the pin joint portion extends forward collude the portion and certainly the splenium that the pin joint portion extends backward, with the constitution with the pin joint portion is the seesaw structure of fulcrum.

According to the utility model discloses an embodiment, the latch mechanism is sliding lock mechanism, wherein sliding lock mechanism including set up in the tapered end of first hard tube with set up correspondingly in the lockhole of second hard tube, and the tapered end is used for sliding into the lockhole is so that sliding lock mechanism is in locking state.

According to the utility model discloses an embodiment, the tapered end of slide lock mechanism along the axial of first hard tube extends forward in order to stretch out first hard tube, and the lockhole has along back opening that the axial of second hard tube was seted up and along the unblock opening that the radial was seted up of second hard tube, wherein work as when slide lock mechanism is in during the locking state, the tapered end is followed back opening inserts the lockhole to partly expose buckle in unblock opening.

According to the utility model discloses an embodiment, the latch mechanism is point latch mechanism, wherein point latch mechanism includes that the ring is located a plurality of punctiform recesses of first hard tube encircle with correspond and locate a plurality of punctiform archs of second hard tube, wherein work as first hard tube is close to during the second hard tube, be located the second hard tube punctiform arch is embedded respectively and is located first hard tube punctiform recess, so that point latch mechanism is in lock state.

According to an embodiment of the present invention, the point lock mechanism further includes a tooth-shaped groove recessed inward from an outer surface of the first hard pipe and a tooth-shaped wing axially extending backward from the second hard pipe, and the tooth-shaped wing on the second hard pipe is used for inserting the tooth-shaped groove on the first hard pipe, wherein the point-shaped groove is located in a bottom wall of the tooth-shaped groove, and the point-shaped protrusion is located in an inner surface of the tooth-shaped wing.

According to an embodiment of the present invention, the hard tube assembly further comprises one or more intermediate hard tubes, wherein one end of the intermediate hard tube is provided with the toothed wing and the dotted protrusion, and the other end of the intermediate hard tube is provided with the toothed groove and the dotted recess, so as to pass through the dot lock mechanism will the intermediate hard tube rigidly connect between the first hard tube and the second hard tube.

According to another aspect of the present invention, the utility model further provides a dust collector, include:

a cleaner main body; and

the hose and wand assembly as defined in any one of the above claims, wherein the hose and wand assembly is provided with the cleaner body to perform corresponding operations via the hose and wand assembly.

According to an embodiment of the present invention, the cleaner body has a dust suction port for sucking dust and an air blowing port for blowing air, wherein when the tube for both soft and hard is assembled to the dust suction port of the cleaner body, the tube for both soft and hard is adapted to be in a hose state to perform a dust suction operation; when the hard-soft dual-purpose pipe is assembled at the air blowing port of the dust collector main body, the hard-soft dual-purpose pipe is suitable for being in a hard pipe state so as to perform air blowing operation.

Drawings

Fig. 1 is a schematic perspective view of a rigid-flexible dual-purpose pipe according to an embodiment of the present invention in a rigid state;

fig. 2 is a schematic perspective view showing the dual-purpose hose for soft and hard according to the above embodiment of the present invention;

fig. 3 shows an exploded view of the rigid-flexible dual-purpose pipe according to the above embodiment of the present invention;

fig. 4 is a schematic diagram illustrating state switching of the latch mechanism in the dual-purpose hose according to the embodiment of the present invention;

fig. 5 shows a first variant implementation of the dual hose according to the above embodiment of the invention;

fig. 6 shows an exploded view of the rigid-flexible pipe according to the first modified embodiment of the present invention;

fig. 7 is a schematic view showing state switching of a latch mechanism in the rigid-flexible pipe according to the first modified embodiment of the present invention;

fig. 8 shows a second variant embodiment of the rigid-flexible pipe according to the above embodiment of the invention;

fig. 9 shows an exploded view of the rigid-flexible pipe according to the second modified embodiment of the present invention;

fig. 10 is a schematic view showing state switching of the slide lock mechanism in the rigid-flexible pipe according to the second modified embodiment of the present invention;

fig. 11 shows a third variant embodiment of the rigid-flexible pipe according to the above embodiment of the invention;

fig. 12 is an exploded view of the rigid-flexible pipe according to the third modified embodiment of the present invention;

fig. 13 is a schematic view showing state switching of a point lock mechanism in the rigid-flexible pipe according to the third modified embodiment of the present invention;

figure 14 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;

fig. 15 is a schematic view illustrating a state where the vacuum cleaner according to the above embodiment of the present invention performs a dust suction operation;

fig. 16 is a schematic view illustrating a state where the vacuum cleaner according to the above embodiment of the present invention performs a blowing operation;

description of the main element symbols: 1. a vacuum cleaner; 10. a soft and hard dual-purpose tube; 11. a hose; 1101. a first end; 1102. a second end; 111. a flexible tube wall; 112. an elastic skeleton; 12. a hard tube assembly; 120. a pipeline; 121. a first rigid tube; 122. a second rigid tube; 123. a middle hard tube; 13. a lock mechanism; 131. a rotational locking mechanism; 1311. a locking ring; 1312. a latch bolt; 1313. locking the channel; 13131. unlocking the groove; 13132. a locking groove; 1314. a sliding tongue; 1315. a slideway; 13151. a rotating tank; 13152. disassembling and assembling the groove; 132. a latch mechanism; 1321. locking the hook; 13211. a pivoting part; 13212. a hook part; 13213. a pressing part; 1322. locking the groove; 133. a slide lock mechanism; 1331. a lock head; 1332. a lock hole; 13321. a rear opening; 13322. unlocking the opening; 134. clicking a lock mechanism; 1341. a dotted groove; 1342. a dot-shaped bulge; 1343. a tooth-shaped groove; 1344. a toothed wing; 20. a cleaner main body; 201. a dust suction port; 202. an air blowing port; 30. a dust suction nozzle; 40. a blowing nozzle; 50. and (7) assembling the components.

The present invention is described in further detail with reference to the drawings and the detailed description.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "disposed" or "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Considering that the existing multifunctional dust collector needs two independent accessories of a hose and a hard pipe under two requirements of dust collection and air blowing, the whole accessories of the product are increased, the cost is increased, the packaging volume is further increased, and the carrying and the transportation are not facilitated. In order to solve the problem, the utility model designs a soft or hard dual-purpose pipe and dust catcher, it can realize that the accessory is dual-purpose through the mode that hose and hard tube combine, helps reducing accessory quantity, and then reduces packing volume, portable transportation. It can be understood that the dual-purpose hose of the present invention can be applied to other devices requiring a hose and a hard hose, besides the vacuum cleaner.

Specifically, referring to fig. 1-4, one embodiment of the present invention provides a dual hose 10, which may include a hose 11, a wand assembly 12, and a lock mechanism 13. The wand assembly 12 comprises a first wand 121 in communication with a first end 1101 of the hose 11 and a second wand 122 in communication with a second end 1102 of the hose 11. The locking mechanism 13 is provided to the hard tube assembly 12, and the locking mechanism 13 is adapted to be operated to switch between a locked state and an unlocked state. When the locking mechanism 13 is operated to be in the locking state, the first rigid pipe 121 is rigidly connected to the second rigid pipe 122 through the locking mechanism 13, so that the rigid-flexible pipe 10 is in a rigid state. When the lock mechanism 13 is operated to be in the unlocked state, the first hard tube 121 is flexibly connected to the second hard tube 122 through the hose 11, so that the rigid-flexible tube 10 is in a hose state.

It is noted that the first hard hose 121 of the duel hose 10 of the present application is adapted to be fitted to a suction port and/or a blowing port of a vacuum cleaner, and the second hard hose 122 is adapted to be fitted to various suction nozzles and/or blowing nozzles. Meanwhile, the present application can switch the dual hose 10 between the hose state and the hard hose state only by operating the lock mechanism 13. Thus, when the dual-purpose hose 10 is in a hose state, the first hard tube 121 and the second hard tube 122 in the dual-purpose hose 10 can be respectively connected with a dust suction opening and a dust suction nozzle of a dust collector, so that the dust collector can perform multi-directional and multi-angle dust suction operation through the dual-purpose hose 10 in the hose state; when the hard-soft dual-purpose pipe 10 is in a hard pipe state, the first hard pipe 121 and the second hard pipe 122 in the hard-soft dual-purpose pipe 10 can be respectively connected with a blowing opening and a blowing nozzle of a dust collector, so that the dust collector can enable the blowing nozzle to be close to an operation surface through the hard-soft dual-purpose pipe 10 in the hard pipe state to directionally blow air. In other words, the dual-purpose hose 10 can have both the functions of a hose and a hard tube, i.e., one hose is dual-purpose, which is helpful for reducing the number of fittings of the vacuum cleaner, further reducing the packaging volume, and facilitating carrying and transportation.

More specifically, as shown in fig. 1, when the rigid-flexible pipe 10 is in a rigid state, the flexible pipe 11 is covered by the rigid pipe assembly 12 to be located inside the rigid pipe assembly 12, so that the rigid-flexible pipe 10 can form a straight pipe for directional blowing operation; when the dual-purpose hose 10 is in a hose state, as shown in fig. 2, the hose 11 is suitable for being partially exposed outside the hard hose assembly 12, so that the dual-purpose hose 10 can form a bent pipe for performing multi-angle or multi-direction dust collection operation. It is understood that, in other examples of the present application, when the dual-purpose hose 10 is in the hard hose state, the dual-purpose hose 10 can also be connected with a dust suction port and a dust suction nozzle of the dust collector to perform dust suction operation; correspondingly, when the soft and hard dual-purpose pipe 10 is in the hose state, the soft and hard dual-purpose pipe 10 may also be connected with the blowing port and the blowing nozzle of the dust collector to perform blowing operation, which is not described in detail herein.

According to the above embodiment of the present application, the flexible tube 11 of the dual hose 10 has a telescopic structure, wherein when the locking mechanism 13 is in the locking state, the flexible tube 11 is retracted into the tube 120 of the hard tube assembly 12 to be within the first hard tube 121 and the second hard tube 122, so that the flexible tube 11 is protectively covered by the hard tube assembly 12 while providing overall rigidity through the hard tube assembly 12; when the lock mechanism 13 is in the unlocked state and the first hard tube 121 and the second hard tube 122 are separated from each other, the hose 11 extends out of the pipe 120 of the hard tube assembly 12 to be located between the first hard tube 121 and the second hard tube 122, so that the first hard tube 121 and the second hard tube 122 can still be fittingly connected to the dust/air blowing opening and the dust/air blowing nozzle of the dust collector while providing overall softness through the hose 11.

Alternatively, as shown in fig. 4, the flexible tube 11 of the dual-purpose hose 10 may include a flexible tube wall 111 and an elastic skeleton 112 disposed inside the flexible tube wall 111, wherein when the flexible tube 11 is stretched under an external force, the elastic skeleton 112 is elastically deformed to accumulate elastic potential energy, and is used to release the elastic potential energy after the external force is removed so as to restore the flexible tube 11 to a natural state.

Alternatively, the elastic frame 112 of the hose 11 may be, but is not limited to being, implemented as a compression spring, so that when the lock mechanism 13 is in the locked state, the hose 11 is compressed to be accommodated in the tube 120 of the hard tube assembly 12, so that the compression spring of the hose 11 is compressed to accumulate elastic potential energy; when the locking mechanism 13 is in the unlocked state, the compression spring of the hose 11 will automatically extend to release the elastic potential energy, so that the hose 11 automatically extends to extend out of the tube 120 of the hard tube assembly 12. In other words, when the elastic frame 112 is a compression spring, the natural state of the hose 11 is an extended state, although the hose 11 needs to be compressed to be retracted into the tube 120 of the hard tube assembly 12 when the dual-purpose hose 10 is switched from the hose state to the hard tube state; however, when the dual hose 10 is switched from the hose state to the hose state, the hose 11 can be released to automatically eject the pipe 120 of the hose assembly 12 by unlocking the lock mechanism 13, thereby facilitating the dust suction operation.

Of course, in other examples of the application, the elastic frame 112 of the hose 11 can also be implemented as a tension spring, so that when the lock mechanism 13 is in the unlocked state and the first hard tube 121 and the second hard tube 122 are separated from each other by an external force, the hose 11 is stretched to be outside the pipe 120 of the hard tube assembly 12, so that the tension spring of the hose 11 is stretched to accumulate elastic potential energy; when the external force applied to the first hard tube 121 and the second hard tube 122 is removed, the tension spring of the flexible tube 11 will automatically contract to release the elastic potential energy, so that the flexible tube 11 automatically retracts into the tube 120 of the hard tube assembly 12, so as to place the locking mechanism 13 in the locked state. In other words, when the elastic frame 112 is a tension spring, the natural state of the hose 11 is a compressed state, although the hose 11 needs to be stretched to extend out of the tube 120 of the hard tube assembly 12 when the dual-purpose hose 10 is switched from the hard tube state to the hose state; however, when the dual hose 10 is switched from the hose state to the hose state, the hose 11 can be automatically retracted to be accommodated in the pipe 120 of the hose assembly 12 by simply removing the applied external force, so that the locking mechanism 13 can be locked.

It should be noted that, in the above embodiments of the present application, the flexible tube wall 111 of the flexible tube 11 may be formed by folding a flexible material, so that the flexible tube 11 forms a corrugated tube with a certain expansion and contraction performance, thereby extending or retracting the tube 120 of the hard tube assembly 12. Of course, in other examples of the present application, the end of the flexible tube 11 can be axially slidably connected to the first hard tube 121 and/or the second hard tube 122, and still the flexible tube 11 can be ensured to extend or retract from the tube 120 of the hard tube assembly 12, which will not be described in detail herein. It is understood that the hard tube assembly 12 of the present application may be, but is not limited to being, made of a hard material such as plastic, and will not be described in detail herein.

Illustratively, as shown in fig. 3 and 4, the lock mechanism 13 of the duel hose 10 may be, but is not limited to, implemented as a twist lock mechanism 131 to switch between the locked state and the unlocked state by a rotating operation, thereby achieving switching of the duel hose 10 between a hose state and a hard hose state.

Specifically, as shown in fig. 3 and 4, the twist lock mechanism 131 in the duel hose 10 may include a lock ring 1311 rotatably disposed on the first hard hose 121, a lock tongue 1312 disposed on the lock ring 1311, and a lock passage 1313 correspondingly disposed on the second hard hose 122, wherein the lock passage 1313 has an unlocking groove 13131 axially extending along the second hard hose 122 and a locking groove 13132 circumferentially extending along the second hard hose 122, and the unlocking groove 13131 and the locking groove 13132 are communicated with each other and are matched with the lock tongue 1312. In other words, the unlocking groove 13131 extends along the axial direction of the second hard pipe 122, and the locking groove 13132 of the lock channel 1313 extends from the unlocking groove 13131 along the circumferential direction of the second hard pipe 122 to form the lock channel 1313 having an L-shaped structure, wherein the unlocking groove 13131 and the locking groove 13132 of the lock channel 1313 are both matched with the locking tongue 1312, so that the locking tongue 1312 can move in the lock channel 1313.

Thus, when the second hard tube 122 is close to the first hard tube 121 in the axial direction, the locking tongue 1312 of the twist lock mechanism 131 will slide along the unlocking groove 13131 to a position aligned with the locking groove 13132, and at this time, the locking ring 1311 is rotated relative to the first hard tube 121, so that the locking tongue 1312 causes the twist lock mechanism 131 to be in a locked state as the locking ring 1311 rotates to slide into the locking groove 13132, so that the duel hose 10 is in a hard tube state; when the twist-lock mechanism 131 needs to be unlocked, the lock ring 1311 is first rotated reversely relative to the first hard tube 121, so that the lock tongue 1312 slides into the unlocking slot 13131 as the lock ring 1311 rotates, the twist-lock mechanism 131 is in the unlocked state, and at this time, the first hard tube 121 and the second hard tube 122 are separated from each other, so that the lock tongue 1312 slides out of the lock channel 1313 along the unlocking slot 13131, and the dual-purpose hose 10 is switched from the hard tube state to the hose state.

It is understood that in other examples of the present application, the latch 1312 in the twist-lock mechanism 131 can also be disposed on the second rigid pipe 122; accordingly, the lock channel 1313 may be correspondingly provided to the lock ring 1311, still enabling the above-described unlocking and locking operations.

Optionally, the end of the locking groove 13132 in the locking channel 1313 remote from the unlocking groove 13131 is abruptly widened to form a limit end, so that the locking tongue 1312 can be limitedly held at the limit end of the locking groove 13132 to prevent the locking tongue 1312 from unintentionally or accidentally sliding from the locking groove 13132 into the unlocking groove 13131 to be unintentionally unlocked. In other words, since the axial dimension of the limit end of the locking groove 13132 is suddenly increased, so that the end of the locking groove 13132 forms a limit step, and at the same time, the elastic frame 112 of the hose 11, whether a compression spring or a tension spring, applies a pushing force away from each other or a pulling force approaching each other to the first hard tube 121 and the second hard tube 122 when the hose 11 is retracted into the pipe 120 of the hard tube assembly 12, the locking tongue 1312 is limited by the limit step at the limit end of the locking groove 13132 to prevent it from unintentionally or accidentally sliding out of the locking groove 13132, so as to ensure that the twist lock mechanism 131 can be stably maintained in the locked state until the locking tongue 1312 slides into the unlocking groove 13131 to complete unlocking by reversely rotating the locking ring 1311.

It is noted that, in order to ensure both the rotation of the lock ring 1311 relative to the first rigid pipe 121 and the detachment and installation between the lock ring 1311 and the first rigid pipe 121 after the lock ring 1311 is mounted on the first rigid pipe 121, as shown in fig. 3 and 4, the twist-lock mechanism 131 of the present application may further include a sliding tongue 1314 disposed on the lock ring 1311 and a sliding groove 1315 correspondingly disposed on the first rigid pipe 121, wherein the sliding groove 1315 includes a rotation groove 13151 extending along the circumference of the first rigid pipe 121 and a detachment groove 13152 extending from the rotation groove 13151 along the axis of the first rigid pipe 121 to form the sliding groove 1315 having an L-shaped structure, and the rotation groove 1314 and the detachment groove 13152 of the sliding groove 1315 are matched with the sliding tongue 1314, so that the sliding tongue 1315 can slide in the sliding groove 1315. Thus, when the sliding tongue 1314 on the locking ring 1311 slides into the rotating slot 13151 along the disassembly slot 13152 to complete the installation of the two, the sliding tongue 1314 can slide in the rotating slot 13151 to allow the locking ring 1311 to rotate relative to the first rigid pipe 121; when the sliding tongue 1314 of the locking ring 1311 slides out of the sliding groove 1315 along the disassembly groove 13152 from the rotating groove 13151, the locking ring 1311 can be disassembled from the first rigid pipe 121.

Preferably, the depth of the rotation slot 13151 in the slide 1315 is slightly greater than the depth of the disassembly slot 13152 to prevent the tongue 1314 from inadvertently or accidentally sliding from the rotation slot 13151 to the disassembly slot 13152, and to prevent the lock ring 1311 from accidentally disengaging from the first rigid pipe 121.

More preferably, the depth of the disassembly groove 13152 in the sliding groove 1315 becomes gradually greater forward from the rotation groove 13151, so that the disassembly groove 13152 becomes gradually deeper as the distance from the rotation groove 13151 becomes longer, so that the sliding tongue 1314 is not easily slid into the disassembly groove 13152 from the rotation groove 13151 while the sliding tongue 1314 on the locking ring 1311 is easily slid into the rotation groove 13151 via the disassembly groove 13152.

It is understood that in other examples of the present application, the tongue 1314 may be provided on the first rigid tube 121, and correspondingly the chute 1315 is provided on the locking ring 1311, while still enabling the detachable screwing between the locking ring 1311 and the first rigid tube 121.

It is noted that although in the above embodiments according to the present application, the twist-lock mechanism 131 may include a pair of ramps 1315 disposed axisymmetrically to the first rigid conduit 121; a pair of lock lanes 1313 disposed axisymmetrically to the second rigid pipe 122; and a pair of sliding tongues 1314 and a pair of locking tongues 1312 correspondingly disposed on the lock ring 1311, but this is merely an example, and it can be understood by those skilled in the art that the number of the locking tongues 1312, the locking channels 1313, the sliding tongues 1314 and the sliding channels 1315 in the twist lock mechanism 131 is not limited to two, and may be one, three or more, which is not described herein again.

It is worth mentioning that fig. 5 shows a first variant embodiment of the rigid-flexible tube 10 according to the above-described embodiment of the present application. The duel hose 10 according to this modified embodiment of the present application differs from the above-described example according to the present application in that: the locking mechanism 13 can be implemented as a latch mechanism 132 to releasably lock the second rigid pipe 122 to the first rigid pipe 121 by means of a snap-fit, thereby enabling the switch between the hose state and the rigid pipe state of the duel hose 10.

Specifically, as shown in fig. 6 and 7, the locking mechanism 132 may include a locking hook 1321 pivotally connected to the first rigid tube 121 and a locking slot 1322 disposed on the second rigid tube 122, and the locking hook 1321 is adapted to be releasably inserted into the locking slot 1322 to place the locking mechanism 132 in a locked state. Thus, when the second hard tube 122 is close to the first hard tube 121 along the axial direction, the latch 1321 of the latch mechanism 132 pivots relative to the first hard tube 121 to be inserted into the latch slot 1322 on the second hard tube 122, so as to realize the snap-fit between the latch 1321 and the latch slot 1322, so that the latch mechanism 132 is in the locked state, and accordingly, the hard and soft tube 10 is in the hard tube state; when the locking mechanism 132 needs to be unlocked, the locking hook 1321 only needs to be pivoted reversely relative to the first hard tube 121 to disengage from the locking slot 1322 on the second hard tube 122, so that the locking mechanism 132 can be in the unlocked state, and at this time, the first hard tube 121 and the second hard tube 122 are separated from each other, so that the dual-purpose hose 10 is switched from the hard tube state to the hose state.

Optionally, the locking mechanism 132 may further include a torsion spring (not shown), wherein the torsion spring is correspondingly disposed between the hook 1321 and the first rigid tube 121 for applying a torsion force to the hook 1321, so that the hook 1321 can be continuously inserted into the locking slot 1322 without being separated from the locking slot 1322 by its own weight, so that the locking mechanism 132 can stably maintain a locked state; the locking mechanism 132 is not unlocked until a reverse torque is applied to the catch 1321 to disengage the catch 1321 from the slot 1322.

Alternatively, as shown in fig. 6 and 7, in order to unlock the locking mechanism 132, the locking hook 1321 of the locking mechanism 132 may include a pivoting portion 13211 pivotally connected to the first rigid tube 121, a hook portion 13212 extending forward from the pivoting portion 13211, and a pressing portion 13213 extending backward from the pivoting portion 13211, so that the pivoting portion 13211 is located between the hook portion 13212 and the pressing portion 13213, thereby forming a seesaw structure with the pivoting portion 13211 as a fulcrum. Thus, when the locking mechanism 132 needs to be unlocked, only the pressing portion 13213 of the hook 1321 needs to be pressed to make the pressing portion 13213 close to the first hard tube 121, and the hook 13212 of the hook 1321 is lifted to be separated from the locking slot 1322 on the second hard tube 122, so that the unlocking operation of the locking mechanism 132 is conveniently realized. It can be understood that the torsion spring of the present application can apply a torsion force to the latch hook 1321, so that the pressing portion 13213 of the latch hook 1321 is lifted away from the first hard tube 121, and the hook portion 13212 of the latch hook 1321 will approach the first hard tube 121, so as to be stably inserted into the latch slot 1322, thereby achieving a reliable locking. In addition, the present application can be defined by the relative position of the first hard tube 121 and the second hard tube 122, for example, the present application can be described by the first hard tube 121 being followed by the second hard tube 122 being preceded by; in other words, the first rigid pipe 121 is connected to the rear end of the flexible pipe 11, and the second rigid pipe 122 is connected to the front end of the flexible pipe 11.

It is noted that fig. 8 shows a second variant embodiment of the rigid-flexible pipe 10 according to the above-described embodiment of the present application. The duel hose 10 according to this modified embodiment of the present application differs from the above-described example according to the present application in that: the lock mechanism 13 can be implemented as a slide lock mechanism 133 to releasably lock the second rigid pipe 122 to the first rigid pipe 121 by way of a slide fastener to thereby switch the hard-hose 10 between the hose state and the rigid pipe state.

Specifically, as shown in fig. 9 and 10, the sliding lock mechanism 133 may include a lock head 1331 disposed on the first hard tube 121 and a lock hole 1332 correspondingly disposed on the second hard tube 122, and the lock head 1331 is adapted to slide into the lock hole 1332 to lock the sliding lock mechanism 133.

More specifically, as shown in fig. 9 and 10, the locking head 1331 extends forward along the axial direction of the first hard tube 121 to protrude out of the first hard tube 121, and the locking hole 1332 may have a rear opening 13321 opened along the axial direction of the second hard tube 122, so that when the first hard tube 121 approaches the second hard tube 122, the locking head 1331 can be inserted into the rear opening 13321 of the locking hole 1332 to slide into the locking hole 1332 for locking.

Optionally, as shown in fig. 9 and 10, the lock hole 1332 may further have an unlocking opening 13322 opened along the radial direction of the second hard tube 122, wherein when the sliding lock mechanism 133 is in the locking state, the lock head 1331 is partially exposed and buckled in the unlocking opening 13322 of the lock hole 1332, at this time, when the sliding lock mechanism 133 needs to be unlocked, the lock head 1331 can be unlocked from the unlocking opening 13322 of the lock hole 1332 only by pressing the lock head 1331 through the unlocking opening 13322, and then the lock head 1331 is drawn out from the lock hole 1332, so as to unlock the sliding lock mechanism 133.

It should be noted that in the first and second variant embodiments described above according to the present application, the number of the latch mechanisms 132 may be one, so as to realize one-sided snapping; the number of the slide lock mechanisms 133 can be two, so as to realize bilateral slide fasteners; however, it is only an example, and in other examples of the present application, the number of the latch mechanism 132 and the slide lock mechanism 133 is not limited thereto, and may be, for example, one, two, or more than two as long as the lock mechanism 13 of the present application can be switched between the locked state and the unlocked state.

In addition, the locking mechanism 13 of the present application is not limited to the above-mentioned twist locking mechanism 131, locking mechanism 132 and slide locking mechanism 133, for example, in the third variant embodiment of the present application, as shown in fig. 11, the locking mechanism 13 of the present application may also be implemented as a point locking mechanism 134 to releasably lock the second hard tube 122 to the first hard tube 121 by means of point locking, so as to switch the hard-soft dual tube 10 between the hose state and the hard tube state.

Specifically, as shown in fig. 12 and 13, the dot lock mechanism 134 may include a plurality of dot recesses 1341 disposed around the first hard pipe 121 and a plurality of dot protrusions 1342 disposed around the second hard pipe 122, and when the first hard pipe 121 approaches the second hard pipe 122, the dot protrusions 1342 disposed on the second hard pipe 122 are respectively inserted into the dot recesses 1341 disposed on the first hard pipe 121, so that the dot lock mechanism 134 is in a locked state.

Optionally, as shown in fig. 12 and 13, the point lock mechanism 134 may further include a toothed groove 1343 recessed inwardly from the outer surface of the first hard tube 121 and a toothed wing 1344 extending axially rearwardly from the second hard tube 122, and the toothed wing 1344 on the second hard tube 122 is adapted to be inserted into the toothed groove 1343 on the first hard tube 121. The point-shaped groove 1341 is located at the bottom wall of the tooth-shaped groove 1343, and the point-shaped protrusion 1342 is located at the inner surface of the tooth-shaped wing 1344. Thus, when the tooth-shaped wing 1344 of the second hard tube 122 is inserted into the tooth-shaped slot 1343 of the first hard tube 121, the point-shaped protrusion 1342 of the tooth-shaped wing 1344 is just embedded into the point-shaped groove 1341 of the tooth-shaped slot 1343, so as to achieve reliable locking of the point-locking mechanism 134.

Optionally, the shape of the tooth-shaped wing 1344 is adapted to the shape of the tooth-shaped slot 1343, so that after the tooth-shaped wing 1344 on the second hard tube 122 is inserted into the tooth-shaped slot 1343 on the first hard tube 121, the tooth-shaped wing 1344 is completely embedded into the tooth-shaped slot 1343 to ensure the smooth outer surface of the connection between the first hard tube 121 and the second hard tube 122.

It is understood that in other examples of the present application, the dot-shaped groove 1341 of the dot-shaped locking mechanism 134 can also be disposed on the second hard tube 122, and correspondingly, the dot-shaped protrusion 1342 is correspondingly disposed on the first hard tube 121, which still can achieve the dot-shaped locking of the first hard tube 121 and the second hard tube 122.

It should be noted that, in addition to the rigid connection between the first hard tube 121 and the second hard tube 122 by the point locking mechanism 134 to point-lock the first hard tube 121 directly to the second hard tube 122, the rigid connection between the first hard tube 121 and the second hard tube 122 can be achieved by the point locking mechanism 134, the first hard tube 121 and the second hard tube 122 can be rigidly connected to one or more intermediate hard tubes respectively by the point locking mechanism 134, so as to increase the overall length of the hard tube assembly 12.

Illustratively, as shown in fig. 12 and 13, the hard tube assembly 12 of the hard and soft dual-purpose tube 10 may further include one or more middle hard tubes 123, wherein one end of the middle hard tube 123 is provided with the tooth-shaped wing 1344 and the dot-shaped protrusion 1342 so as to be point-locked to the first hard tube 121, and the other end of the middle hard tube 123 is provided with the tooth-shaped groove 1343 and the dot-shaped groove 1341 so as to be point-locked to the second hard tube 122, so that the middle hard tube 123 is rigidly connected between the first hard tube 121 and the second hard tube 122, so as to increase the overall length of the hard tube assembly 12. It can be understood that, since one end of the middle hard tube 123 is provided with the tooth-shaped wing 1344 and the point-shaped protrusion 1342, and the other end is provided with the tooth-shaped groove 1343 and the point-shaped groove 1341, one end of the middle hard tube 123 can be point-locked to the other end of the other middle hard tube 123, and repeating this, a plurality of middle hard tubes 123 can be disposed between the first hard tube 121 and the second hard tube 122, so as to multiply increase the overall length of the hard tube assembly 12.

It is worth mentioning that, according to another aspect of the present invention, as shown in fig. 14, an embodiment of the present invention further provides a vacuum cleaner 1, wherein the vacuum cleaner 1 may include a vacuum cleaner main body 20 and the dual-purpose hose 10, wherein the dual-purpose hose 10 is adapted to be assembled to the vacuum cleaner main body 20, so that the vacuum cleaner main body 20 can perform corresponding operations through the dual-purpose hose 10.

Alternatively, as shown in fig. 14 and 15, the cleaner body 20 of the cleaner 1 has a dust suction port 201 for sucking dust and a blowing port 202 for blowing air, wherein when the duel hose 10 is fitted to the dust suction port 201 of the cleaner body 20, the cleaner 1 can perform a dust suction operation through the duel hose 10, and at this time, if the duel hose 10 is in a hose state, the cleaner 1 can perform a dust suction operation in multiple angles and multiple directions; as shown in fig. 14 and 16, when the rigid-flexible pipe 10 is mounted to the air blowing port 202 of the cleaner body 20, the cleaner 1 can perform a blowing operation through the rigid-flexible pipe 10, and at this time, if the rigid-flexible pipe 10 is in a rigid state, the cleaner 1 can perform a directional blowing operation. In other words, the vacuum cleaner 1 has both functions of dust collection and air blowing, and can perform dust collection and air blowing better by combining the hose state and the hose state of the hose/wand 10.

It can be understood that, as shown in fig. 14, the suction opening 201 and the blowing opening 202 of the main body 20 of the vacuum cleaner of the present application may share one opening, and then the function of the opening is changed according to the change of the direction of rotation of the fan or the direction of the internal passage in the main body 20 of the vacuum cleaner, so that the opening can be used as the suction opening 201 to suck air inwards; and can also function as the air blowing port 202 to blow air outward. Of course, in other examples of the present application, the dust suction port 201 and the air blowing port 202 of the cleaner body 20 may also be implemented as two different openings, such that the opening communicating with the air inlet of the fan in the cleaner body 20 is implemented as the dust suction port 201, and the opening communicating with the air outlet of the fan in the cleaner body 20 is implemented as the air blowing port 202, and at this time, only the dual-purpose hose 10 needs to be assembled to different openings, so as to respectively realize dust suction and air blowing of the cleaner 1.

Alternatively, as shown in fig. 15 and 16, the vacuum cleaner 1 of the present application may further include a suction nozzle 30 and a blowing nozzle 40, wherein the first hard pipe 121 of the duel hose 10 is adapted to be detachably attached to the suction port 201 or the blowing port 202 of the cleaner body 20, and the second hard pipe 122 of the duel hose 10 is adapted to be detachably attached to the suction nozzle 30 or the blowing nozzle 40. Thus, when the dust collector 1 needs to perform dust collection operation, the first hard pipe 121 in the dual hose 10 is mounted to the dust collection port 201 of the dust collector main body 20, and the dust collection nozzle 30 is mounted to the second hard pipe 122, so that the dust collection nozzle 30 is communicated with the dust collection port 201 of the dust collector main body 20 through the dual hose 10, and the required dust collection operation is facilitated; when the vacuum cleaner 1 needs to perform a blowing operation, the first hard pipe 121 of the hard-soft dual-purpose pipe 10 is mounted to the blowing port 202 of the vacuum cleaner main body 20, and the blowing nozzle 40 is mounted to the second hard pipe 122, so that the blowing nozzle 40 is communicated with the blowing port 202 of the vacuum cleaner main body 20 through the hard-soft dual-purpose pipe 10, which facilitates the required blowing operation.

It should be noted that, as shown in fig. 14, the vacuum cleaner 1 may further include a fitting 50 disposed at a side of the vacuum cleaner body 20, wherein the fitting 50 is adapted to fit the dual-purpose hose 10 in a hard pipe state at the side of the vacuum cleaner body 20, and a length of the dual-purpose hose 10 in the hard pipe state is substantially the same as a length of a side of the vacuum cleaner body 20, so as to reduce a packaging volume and facilitate placement of pipe fittings.

Alternatively, the cleaner 1 may include two fitting parts 50, and the fitting parts 50 are respectively provided at the left and right sides of the cleaner body 20 to respectively fit the duel hose 10 and the blowing nozzle 40, so that various accessories can be placed to prevent the omission of the accessories. It will be appreciated that the fitting 50 of the present application can be, but is not limited to being, embodied as a tube clamp to removably retain various fittings to the cleaner body 20 in case of omission or loss.

It is worth mentioning, according to the utility model discloses an on the other hand, the utility model discloses an embodiment further provides a soft or hard pipe switching method, can include the step:

rigidly connecting a first hard pipe of a hard pipe assembly to a second hard pipe of the hard pipe assembly through a locking mechanism in a locking state, so that a hard-soft dual-purpose pipe is in a hard pipe state; and

by unlocking the lock mechanism, the first hard pipe is flexibly connected to the second hard pipe through a hose, so that the dual-purpose hose is in a hose state.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (18)

1. The dual-purpose pipe of soft or hard, its characterized in that includes:

a hose;

a wand assembly, wherein the wand assembly comprises a first wand in communication with the first end of the hose and a second wand in communication with the second end of the hose; and

a lock mechanism, wherein the lock mechanism is disposed in the hard tube assembly and the lock mechanism is operated to switch between a locked state and an unlocked state, wherein when the lock mechanism is operated to be in the locked state, the first hard tube is rigidly connected to the second hard tube by the lock mechanism to place the hard and soft tubes in a hard tube state; when the lock mechanism is operated to be in the unlocked state, the first hard tube is flexibly connected to the second hard tube through the hose so that the hard and soft tubes are in a hose state.

2. The duel-purpose hose of claim 1, wherein the hose is covered by the hard hose assembly when the duel-purpose hose is in the hard hose state; when the hose is in the hose state, the hose is suitable for being partially exposed outside the hard pipe assembly.

3. The rigid-flex hose of claim 2, wherein the hose has a telescoping configuration, wherein the hose is retracted into the conduit of the hose assembly when the lock mechanism is in the locked state; when the lock mechanism is in the unlocked state, and when the first hard tube and the second hard tube are separated from each other, the hose extends out of the pipeline of the hard tube assembly so as to be positioned between the first hard tube and the second hard tube.

4. The rigid-flexible pipe as claimed in claim 3, wherein the hose comprises a flexible pipe wall and an elastic skeleton disposed in the flexible pipe wall, wherein when the hose is stretched under an external force, the elastic skeleton is elastically deformed to accumulate elastic potential energy for restoring the hose to a natural state after the external force is removed.

5. The dual-purpose hose of claim 4, wherein the elastic skeleton of the hose is a compression spring or a tension spring.

6. The duel hose according to any one of claims 1 to 5, wherein the lock mechanism is a twist lock mechanism, wherein the twist lock mechanism includes a lock ring rotatably provided to the first hard hose, a lock tongue provided to the lock ring, and a lock passage correspondingly provided to the second hard hose, wherein the lock passage has an unlock groove extending axially along the second hard hose and a lock groove extending circumferentially from the unlock groove along the second hard hose, and the unlock groove and the lock groove of the lock passage are each matched with the lock tongue so as to switch the lock mechanism between the lock state and the unlock state by rotating the lock ring relative to the first hard hose.

7. The duel hose of claim 6, wherein the end of the locking groove in the locking channel distal from the unlocking groove widens abruptly to form a limit tip.

8. The rigid-flexible pipe as claimed in claim 6, wherein the twist lock mechanism further comprises a sliding tongue provided to the locking ring and a slide correspondingly provided to the first rigid pipe, wherein the slide comprises a rotation groove extending circumferentially along the first rigid pipe and a disassembly groove extending axially from the rotation groove along the first rigid pipe, and the rotation groove and the disassembly groove of the slide are matched to the sliding tongue.

9. The rigid-flexible pipe as claimed in claim 8, wherein the depth of the rotation groove in the slide is greater than the depth of the disassembly groove.

10. The rigid-flexible pipe as claimed in any one of claims 1 to 5, wherein the lock mechanism is a latch mechanism, wherein the latch mechanism comprises a lock hook pivoted to the first rigid pipe and a lock groove provided to the second rigid pipe, and the lock hook is adapted to be releasably inserted into the lock groove to place the latch mechanism in the locked state.

11. The tube as claimed in claim 10, wherein the locking hook of the locking mechanism comprises a pivoting portion pivotally connected to the first rigid tube, a hook portion extending forward from the pivoting portion, and a pressing portion extending backward from the pivoting portion to form a seesaw structure with the pivoting portion as a fulcrum.

12. The hose and hardware according to any one of claims 1 to 5 wherein the lock mechanism is a slide lock mechanism, wherein the slide lock mechanism comprises a lock head disposed on the first hard hose and a lock hole correspondingly disposed on the second hard hose, and the lock head is configured to slide into the lock hole to place the slide lock mechanism in the locked state.

13. The hose and wand assembly of claim 12, wherein the locking head of the slide lock mechanism extends forwardly in the axial direction of the first rigid conduit to extend out of the first rigid conduit, and the locking hole has a rear opening that opens in the axial direction of the second rigid conduit and an unlocking opening that opens in the radial direction of the second rigid conduit, wherein the locking head is inserted into the locking hole from the rear opening to partially snap into the unlocking opening with the opening exposed when the slide lock mechanism is in the locked state.

14. The rigid-flexible pipe as claimed in any one of claims 1 to 5, wherein the locking mechanism is a point locking mechanism, wherein the point locking mechanism comprises a plurality of point-shaped grooves surrounding the first rigid pipe and a plurality of point-shaped protrusions correspondingly surrounding the second rigid pipe, wherein when the first rigid pipe is close to the second rigid pipe, the point-shaped protrusions on the second rigid pipe are respectively embedded in the point-shaped grooves on the first rigid pipe, so that the point locking mechanism is in the locking state.

15. The rigid-flexible pipe of claim 14, wherein the point lock mechanism further comprises a toothed groove recessed inwardly from the outer surface of the first rigid pipe and a toothed wing extending axially rearwardly from the second rigid pipe, and the toothed wing on the second rigid pipe is adapted to be inserted into the toothed groove on the first rigid pipe, wherein the point recess is located at a bottom wall of the toothed groove and the point projection is located at an inner surface of the toothed wing.

16. The rigid-flexible pipe as recited in claim 15, wherein the hard pipe assembly further comprises one or more intermediate hard pipes, wherein one end of the intermediate hard pipe is provided with the toothed wing and the point-like protrusion, and the other end of the intermediate hard pipe is provided with the toothed groove and the point-like groove, so as to rigidly connect the intermediate hard pipe between the first hard pipe and the second hard pipe by the point-lock mechanism.

17. A vacuum cleaner, comprising:

a cleaner main body; and

the rigid-flexible pipe as claimed in any one of claims 1 to 16, wherein the rigid-flexible pipe is assembled with the cleaner body to perform corresponding work through the rigid-flexible pipe.

18. The vacuum cleaner as claimed in claim 17, wherein the cleaner body has a dust suction port for sucking dust and a blowing port for blowing air, wherein the duel hose is adapted to be in a hose state to perform a dust suction work when the duel hose is fitted to the dust suction port of the cleaner body; when the dual-purpose hose is assembled at the air blowing port of the cleaner body, the dual-purpose hose is suitable for being in a hard hose state to perform air blowing operation.

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