Bendable accessory and dust collector

Abstract

The utility model provides a bendable accessory and a dust collector, which improves the limitation that a connecting pipe of a dust collector in the prior art is inconvenient to bend in a complex working scene, is favorable for improving the use experience of a user, can be used for the dust collector, and comprises a first pipe part, a second pipe part and a locking mechanism, the locking mechanism comprises a first locking part arranged on the first pipe part, the first locking part is located at one end of the first pipe part, and a locking hole is formed in the first locking part; the locking mechanism further comprises a second locking part arranged on the second pipe part, the second locking part is located at one end of the second pipe part, the second locking part comprises a ring part, and the ring part is embedded into the locking hole. The first pipe part and the second pipe part are pivotally connected through the locking mechanism, and the locking mechanism can control relative rotation between the first pipe part and the second pipe part, so that the first pipe part can be bent relative to the second pipe part and positioned to different bending angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust catcher technical field especially relates to a kind of bendable accessory for dust catcher. BACKGROUND

[0002] Dust catcher is widely used in daily life cleaning, often used to clean dust such as ground. Conventional dust catcher includes dust catcher body, dust suction head, and connecting pipe connected with dust catcher body and dust suction head.

[0003] However, with the change of home environment, often face such as the need of cleaning bed bottom, home bottom, home top dust, cleaning scene becomes complex, the connecting pipe of commonly used dust catcher is straight pipe, when working in complex cleaning scene, it cannot be used by bending angle, leading to more inconvenient use. SUMMARY

[0004] In view of the defects of prior art, the utility model provides a bendable accessory, which improves the limitation that the connecting pipe of the dust catcher in the prior art cannot be bent in a complex working scene, and is beneficial to improving user experience.

[0005] The application provides a bendable accessory, which can be used for a dust collector, and includes a first pipe part, a second pipe part and a locking mechanism. The locking mechanism includes a first locking part provided on the first pipe part, the first locking part is located at one end of the first pipe part, and the first locking part is provided with a locking hole. The locking mechanism further includes a second locking part provided on the second pipe part, the second locking part is located at one end of the second pipe part, and the second locking part includes a ring part which is embedded in the locking hole. The first pipe part and the second pipe part are pivotally connected through the locking mechanism, and the locking mechanism can control the relative rotation between the first pipe part and the second pipe part, so that the first pipe part can be bent relative to the second pipe part and positioned at different bending angles.

[0006] Optionally, the plurality of limiting protrusions are uniformly distributed in the circumferential direction around the rotation axis; the plurality of first limiting holes are uniformly distributed in the circumferential direction around the rotation axis; the plurality of second limiting holes are uniformly distributed in the circumferential direction around the rotation axis; the first base plate, the plurality of first limiting holes, the plurality of second limiting holes and the second base plate are arranged in sequence in the direction perpendicular to the first base plate; the locking mechanism further includes a first spring and a first fixed part, the first fixed part includes a first base plate, the first spring is located between the first locking part and the first base plate, and the first spring is kept in a compressed state between the first locking part and the first base plate.

[0007] Optionally, two ends of the first spring abut against the first locking part and the first base plate respectively, a circumferential edge of a locking hole of the first locking part extends in a direction away from the second locking part to form a first flange, the first flange surrounds a part of the locking hole, the first flange is sleeved on the ring part, and the end of the first spring abutting against the first locking part surrounds the first flange.

[0008] Optionally, the first locking part extends in a direction away from the second locking part to form a cylinder, the first flange is inside the cylinder, and the first base plate is movable to gradually approach the first flange inside the cylinder.

[0009] Optionally, the locking mechanism comprises a first fixing part and a second fixing part, the first fixing part and the second fixing part are assembled together, the first fixing part is movable under the pushing force of a human hand to drive the second fixing part to move along a first direction, the first direction is parallel to an axis of rotation when the first pipe part rotates relative to the second pipe part, and the ring part surrounds the axis of rotation.

[0010] The second fixing part comprises a plurality of limiting protrusions, the first locking part is provided with a plurality of first limiting holes, the second locking part is provided with a plurality of second limiting holes, and the plurality of limiting protrusions can fall into the plurality of first limiting holes and the plurality of second limiting holes to limit the relative rotation between the first locking part and the second locking part, so that the first pipe part is positioned relative to the second pipe part.

[0011] Optionally, the plurality of first limiting holes and the plurality of second limiting holes are used for accommodating the plurality of limiting protrusions, the plurality of first limiting holes and the plurality of second limiting holes correspond to each other in the first direction, the first locking part and the second locking part are at different angles, and the plurality of limiting protrusions can all fall into the plurality of first limiting holes and the plurality of second limiting holes.

[0012] Optionally, the first locking part comprises a plurality of limiting blocks, when the first base plate moves to the limiting blocks along the first direction and is stopped by the abutting of the limiting blocks, at this time, the plurality of limiting protrusions all disengage from the plurality of first limiting holes but do not disengage from the plurality of second limiting holes, at this time, the first locking part can rotate relative to the second locking part, the first fixing part and the second fixing part; and the plurality of limiting protrusions do not disengage from the plurality of second limiting holes to limit the relative rotation between the first fixing part and the second fixing part.

[0013] Optionally, the first locking part extends in a direction away from the second locking part to form a cylinder, the first base plate is at least partially inside the cylinder, and the plurality of limiting blocks are used for limiting the moving distance of the first base plate in the first direction into the cylinder.

[0014] Optionally, the first fixing part comprises a first base plate, the second fixing part further comprises a second base plate, the plurality of limiting protrusions integrally extend from the second base plate, and the plurality of limiting protrusions extend from the second base plate towards the first base plate; the ring part and the locking hole are located between the first base plate and the second base plate; the first base plate, the plurality of first limiting holes, the plurality of second limiting holes and the second base plate can be arranged in sequence in the first direction.

[0015] Optionally, the first fixing part further comprises a plurality of abutting blocks, the second fixing part further comprises a special-shaped part, the plurality of abutting blocks are used for abutting and pushing the special-shaped part to push the second fixing part; the special-shaped part integrally extends from the second base plate, and the special-shaped part extends from the second base plate towards the first base plate; the plurality of limiting protrusions are distributed on the periphery of the special-shaped part; when a person exerts force on the first base plate to push the first fixing part to move in the first direction, the plurality of abutting blocks of the first fixing part abut and push the special-shaped part to push the second fixing part to move in the first direction, so that the plurality of limiting protrusions of the second fixing part are driven to move away from the plurality of first limiting holes of the first locking part in the first direction, and the first locking part is no longer limited by the plurality of limiting protrusions and can rotate relative to the second locking part.

[0016] Optionally, the first fixing part comprises a first hook part and a second hook part, and the first hook part and the second hook part are used for hooking the second fixing part.

[0017] The ring part surrounds a first through hole, the special-shaped part penetrates through the first through hole, and the first base plate and the second base plate are located on opposite sides of the first through hole; the special-shaped part is limited by the plurality of abutting blocks and the first hook part and the second hook part.

[0018] Optionally, the first fixing part comprises a first extension arm and a second extension arm, the first extension arm comprises the first hook part, the plurality of abutting blocks comprise a first abutting block and a second abutting block, the first hook part is located at an end of the first extension arm away from the first base plate, and the first hook part faces away from the second extension arm; the second extension arm comprises the second hook part, the second hook part is located at an end of the second extension arm away from the first base plate, and the second hook part faces away from the first extension arm.

[0019] The special-shaped part is provided with a second through hole, the first extension arm and the second extension arm penetrate through the second through hole, one end of the second through hole on the second base plate is formed with a first step for cooperating with the first hook part and a second step for cooperating with the second hook part; the first hook part is hooked on the first step, the second hook part is hooked on the second step, and the first abutting block and the second abutting block are attached to one end of the special-shaped part close to the first base plate; the first hook part and the second hook part are located on one side of the special-shaped part, the plurality of abutting blocks are located on the opposite side of the special-shaped part, and the first hook part and the second hook part and the plurality of abutting blocks clamp the special-shaped part.

[0020] Optionally, a plurality of abutting blocks extend from the first base plate towards the irregularly shaped portion, a side edge of a first abutting block is connected to the first extension arm, and a side edge of a second abutting block is connected to the second extension arm.

[0021] Optionally, the first pipe portion includes a first pipe end, the first pipe end extends to form a first plate portion, and the first locking portion is located at one end of the first plate portion; the second pipe portion includes a second pipe end, the second pipe end extends to form a second plate portion, and the second locking portion is located at one end of the second plate portion; a plurality of first reinforcing ribs are formed on a side of the first plate portion facing the central axis of the first pipe end, and a plurality of second reinforcing ribs are formed on a side of the second plate portion facing the central axis of the second pipe end.

[0022] Optionally, the bendable accessory further includes a connecting hose, the first pipe portion, the connecting hose, and the second pipe portion are sequentially in fluid communication, a first threaded portion is formed in the first pipe end, the connecting hose includes a first connecting end and a second connecting end, the first connecting end and the second connecting end are located at opposite ends of the connecting hose; the first connecting end extends into the first threaded portion and is screw-coupled with the first threaded portion, and the second connecting end extends into the second threaded portion and is screw-coupled with the second threaded portion.

[0023] Optionally, an outer circumferential surface of the ring portion abuts against an inner circumferential surface of the locking hole, and the ring portion rotates in the locking hole along with relative rotation between the first pipe portion and the second pipe portion; when the ring portion rotates in the locking hole, the outer circumferential surface of the ring portion and the inner circumferential surface of the locking hole slide against each other.

[0024] Optionally, the first locking portion extends to form a second flange in a direction away from the second locking portion, the second flange has a cavity, and an inner wall surface of the second flange is provided with a plurality of limiting grooves; the locking mechanism includes a third fixed portion and a fourth fixed portion, the third fixed portion includes a third base plate and a plurality of locking blocks, the plurality of locking blocks are located at a circumferential edge of the third base plate, the third base plate is at least partially located in the cavity, and the plurality of locking blocks are respectively at least partially located in corresponding limiting grooves; the fourth fixed portion includes a fourth base plate and a plurality of limiting teeth, the fourth base plate and the third base plate are fixed together by a fixing member, the fixing member penetrates through the ring portion, the plurality of limiting teeth are located on a side of the fourth base plate facing the third base plate, the second locking portion is provided with a plurality of tooth grooves for accommodating the plurality of limiting teeth; along with the third base plate being moved towards the second locking portion by a pushing force of a human hand, the fourth fixed portion and the third fixed portion move synchronously, thereby driving the plurality of limiting teeth to be disengaged from the plurality of tooth grooves, so that the second locking portion can rotate relative to the first locking portion, the third fixed portion, and the fourth fixed portion.

[0025] Optionally, the bendable accessory further comprises a second spring located in the cavity and kept in a compressed state, one end of the second spring abutting against the third base plate and pushing the third base plate away from the second locking portion.

[0026] The application further provides a dust collector comprising the aforementioned bendable accessory.

[0027] The first pipe portion and the second pipe portion can be bent and positioned at a certain bending angle by the locking mechanism provided on the first pipe portion and the second pipe portion, which improves the inconvenience of the conventional connecting pipe of the dust collector in complex cleaning scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a perspective view of the bendable accessory of the application;

[0029] Figure 2 It is an exploded view of the bendable accessory of the application;

[0030] Figure 3 It is an axial sectional view of the bendable accessory of the application;

[0031] Figure 4 It is a partial enlarged view of Figure 3

[0032] Figure 5 It is a transverse sectional view of the bendable accessory of the application;

[0033] Figure 6 It is an exploded view of a part of the locking mechanism of the bendable accessory of the application;

[0034] Figure 7 It is an exploded view of a part of the locking mechanism of the bendable accessory of the application from another perspective;

[0035] Figure 8 It is a perspective view of the first pipe portion of the bendable accessory of the application;

[0036] Figure 9 It is a perspective view of a part of the second pipe portion of the bendable accessory of the application;

[0037] Figure 10 It is an axial sectional view of the second pipe portion of the bendable accessory of the application;

[0038] Figure 11 It is a partial enlarged view of Figure 10 DETAILED DESCRIPTION

[0039] Reference is made to the accompanying drawings throughout the present description. Figures 1-11 ​​The application is shown as a bendable accessory 1 which can be used in a vacuum cleaner, comprising a first pipe part 2, a second pipe part 3, a locking mechanism 4, the locking mechanism 4 comprising a first locking part 21 provided on the first pipe part 2, the first locking part 21 being located at one end of the first pipe part 2, the first locking part 21 being provided with a locking hole 211; the locking mechanism 4 comprising a second locking part 31 provided on the second pipe part 3, the second locking part 31 being located at one end of the second pipe part 3, the second locking part 31 comprising a ring part 311, the ring part 311 being embedded in the locking hole 211, the outer circumferential surface of the ring part 311 abutting against the inner circumferential surface of the locking hole 211, the ring part 311 rotating in the locking hole 211 along with the relative rotation between the first pipe part 2 and the second pipe part 3; when the ring part 311 rotates in the locking hole 211, the outer circumferential surface of the ring part 311 and the inner circumferential surface of the locking hole 211 slide and rub, which is beneficial to the stability of the rotation stroke of the relative rotation between the first pipe part 2 and the second pipe part 3 or between the first locking part 21 and the second locking part 31; the locking mechanism 4 pivotally connects the first pipe part 2 and the second pipe part 3, and is used to control the relative rotation between the first pipe part 2 and the second pipe part 3, so that the first pipe part 2 can be bent and positioned at different bending angles relative to the second pipe part 3, so that the bendable accessory 1 can be bent at different bending angles, which is convenient for users to use. When it is needed to control the bending angle between the first pipe part 2 and the second pipe part 3, only the locking mechanism 4 needs to be unlocked, then the first pipe part 2 and the second pipe part 3 are bent at a predetermined angle, and then the locking mechanism 4 is released to reset, so that the first pipe part 2 and the second pipe part 3 are relatively fixed, achieving the effect of positioning at a predetermined bending angle. The bendable accessory 1 of the application constitutes a bendable pipe.

[0040] The locking mechanism 4 comprises a first fixed part 41 and a second fixed part 42, the first fixed part 41 and the second fixed part 42 are assembled together, the first fixed part 41 can be moved under the pushing force of a person's hand to drive the second fixed part 42 to move along a first direction, the first direction is parallel to the rotation axis A of the rotation of the first pipe part 2 relative to the second pipe part 3, and the ring part 311 surrounds the rotation axis A; the ring part 311 surrounds a first through hole 3111, the second fixed part 42 comprises a special-shaped part 423, the special-shaped part 423 penetrates the first through hole 3111; the second fixed part 42 comprises a plurality of limiting protrusions 421, the plurality of limiting protrusions 421 are located at the periphery of the special-shaped part 423, the first locking part 21 is provided with a plurality of first limiting holes 212, the second locking part 31 is provided with a plurality of second limiting holes 312, the plurality of first limiting holes 212, the plurality of second limiting holes 312 are used for accommodating the plurality of limiting protrusions 421, the plurality of first limiting holes 212 and the plurality of second limiting holes 312 correspond to each other in the first direction, the first base plate 411, the plurality of first limiting holes 212, the plurality of second limiting holes 312 and the second base plate 422 are arranged in sequence in the direction perpendicular to the first base plate 411; the plurality of limiting protrusions 421 can fall into the plurality of first limiting holes 212 and the plurality of second limiting holes 312 to limit the relative rotation between the first locking part 21 and the second locking part 31, so that the first pipe part 2 is positioned relative to the second pipe part 3, so as to realize the positioning of the first pipe part 2 relative to the second pipe part 3 to the desired bending angle; when the first locking part 21 and the second locking part 31 are at a plurality of different angles, the plurality of limiting protrusions 421 can fall into the plurality of first limiting holes 212 and the plurality of second limiting holes 312. The plurality of limiting protrusions 421 can pass through or penetrate the plurality of first limiting holes 212 and the plurality of second limiting holes 312 in sequence, so as to achieve the relative fixation effect of the first locking part 21 and the second locking part 31, and realize the locking of the first pipe part 2 and the second pipe part 3. The plurality of limiting protrusions 421 are uniformly distributed in the circumferential direction around the rotation axis A; the plurality of first limiting holes 212 are uniformly distributed in the circumferential direction around the rotation axis A; the plurality of second limiting holes 312 are uniformly distributed in the circumferential direction around the rotation axis A; the number of the plurality of limiting protrusions 421, the number of the plurality of first limiting holes 212 and the number of the plurality of second limiting holes 312 are respectively 7 in the embodiment, but are not limited thereto.

[0041] The locking mechanism 4 further comprises a first spring 43, the first fixed part 41 comprises a first base plate 411, the first spring 43 is located between the first locking part 21 and the first base plate 411, and two ends of the first spring 43 abut against the first locking part 21 and the first base plate 411 respectively. The circumferential edge of the locking hole 211 of the first locking part 21 extends in a direction away from the second locking part 31 to form a first flange 213, the first flange 213 surrounds a part of the locking hole 211, the first flange 213 is sleeved on the ring part 311, and the end of the first spring 43 abutting against the first locking part 21 surrounds the first flange 213 and is located at the outer periphery of the first flange 213. The first locking part 21 extends in a direction away from the second locking part 31 to form a cylinder 214, the first flange 213 is located inside the cylinder 214, and the first base plate 41 can fall into the inside of the cylinder 214; the first base plate 41 can move to the inside of the cylinder 214 to gradually approach the first flange 213. Pressing the first base plate 411 compresses the first spring 43, at this time, the plurality of limiting protrusions 421 are out of the plurality of first limiting holes 212 (to realize unlocking of the locking mechanism 4), so that the first pipe part 2 and the second pipe part 3 can relatively rotate, when the first pipe part 2 and the second pipe part 3 relatively rotate to a predetermined angle, the first base plate 411 is released, the first spring 43 in the compressed state restores the deformation due to its own elastic force, at this time, the plurality of limiting protrusions 421 enter the plurality of first limiting holes 212, so that the locking mechanism 4 resets to realize locking of the first pipe part 2 and the second pipe part 3. The limiting protrusion 421 is substantially columnar.

[0042] The first locking part 21 comprises a plurality of limiting blocks 2141 located on the inner wall of the cylinder 214, which are used to limit the moving distance of the first base plate 411 in the first direction into the cylinder 214, so as to avoid the over-movement of the first base plate 411; when the first base plate 411 moves to the direction close to the first locking part 21 and abuts against the limiting blocks 2141, the plurality of limiting protrusions 421 are all separated from the plurality of first limiting holes 212; when the first base plate 411 moves to the limiting blocks 2141 and stops moving due to the abutment of the limiting blocks 2141, at this time, the plurality of limiting protrusions 421 are all separated from the plurality of first limiting holes 212 but not separated from the plurality of second limiting holes 312, at this time, the first locking part 21 can rotate relative to the second locking part 31, the first fixed part 41 and the second fixed part 42; the plurality of limiting protrusions 312 are not separated from the plurality of second limiting holes 312 to limit the relative rotation between the second fixed part 42 and the second locking part 31, which is also beneficial to the quick resetting of the locking mechanism 4. Pressing the first base plate 411 to separate the plurality of limiting protrusions 421 from the plurality of first limiting holes 212, when the first base plate 411 is blocked by the plurality of limiting blocks 2141 and cannot be pressed further, at this time, the plurality of limiting protrusions 421 have been separated from the plurality of first limiting holes 212, after the plurality of limiting protrusions 421 are separated from the plurality of first limiting holes 212, the angle between the first pipe part 2 and the second pipe part 3 can be adjusted, which is convenient for use.

[0043] The first fixing part 41 further comprises a first extension arm 412, a second extension arm 413, and a plurality of abutting blocks extending from the first base plate 411 towards the irregular-shaped part 423, the first extension arm 412 and the second extension arm 413 are located on the side of the first base plate 411 facing the first locking part 21, the first extension arm 412 and the second extension arm 413 are asymmetric to prevent mistakes, the first extension arm 412 comprises a first hook part 4121, the plurality of abutting blocks comprises a first abutting block 4122 and a second abutting block 4132, the side of the first abutting block 4122 is connected to the first extension arm 412, the first hook part 4121 is located at the end of the first extension arm 412 away from the first base plate 411, the first hook part 4121 faces away from the second extension arm 413, the second extension arm 413 comprises a second hook part 4131, the side of the second abutting block 4132 is connected to the second extension arm 413, the second hook part 4131 is located at the end of the second extension arm 413 away from the first base plate 411, the second hook part 4131 faces away from the first extension arm 412; the second fixing part 42 further comprises a second base plate 422, the plurality of limiting protrusions 421 are integrally extended from the second base plate 422, and the plurality of limiting protrusions 421 extend from the second base plate 422 towards the first base plate 411; the ring part 311 and the locking hole 211 are located between the first base plate 411 and the second base plate 422; the first base plate 411, the plurality of first limiting holes 212, the plurality of second limiting holes 312, and the second base plate 422 can be arranged in the first direction in sequence. The irregular-shaped part 423 is integrally extended from the second base plate 422, the irregular-shaped part 423 extends from the second base plate 422 towards the first base plate 411, and the plurality of abutting blocks are used to push the irregular-shaped part 423 to drive the second fixing part 42; the first fixing part 41 is driven to move along the first direction with the force of the hand of a person applied to the first base plate 411, the plurality of abutting blocks of the first fixing part 41 push the irregular-shaped part 423 to drive the second fixing part 42 to move along the first direction, so that the plurality of limiting protrusions 421 of the second fixing part 42 are driven to move away from the plurality of first limiting holes 212 of the first locking part 21 along the first direction, so that the first locking part 21 is no longer limited by the plurality of limiting protrusions 421 and can rotate relative to the second locking part 31.The first substrate 411 and the second substrate 422 are located on opposite sides of the first through hole 3111; the special-shaped part 423 is limited by the plurality of abutting blocks and the first hook part 4121 and the second hook part 4131; a plurality of limiting protrusions 421 are uniformly distributed around the special-shaped part 423, the special-shaped part 423 is connected with the second substrate 422; the special-shaped part 423 is provided with a second through hole 4231, the first extension arm 412 and the second extension arm 413 penetrate through the second through hole 4231, one end of the second through hole 4231 on the second substrate 422 is formed with a first step 4222 for cooperating with the first hook part 4121 and a second step 4223 for cooperating with the second hook part 4131; the first hook part 4121 is hooked on the first step 4222, the second hook part 4131 is hooked on the second step 4223, the first abutting block 4122 and the second abutting block 4132 are attached to one end of the special-shaped part 423 close to the first substrate 411, in another angle, the first abutting block 4122 and the second abutting block 4132 are attached to one end of the special-shaped part 423 away from the second substrate 422; the first hook part 4121 and the second hook part 4131 are located on one side of the special-shaped part 423, the plurality of abutting blocks are located on the opposite side of the special-shaped part 423, the first hook part 4121 and the second hook part 4131 and the plurality of abutting blocks clamp the special-shaped part 423. The first hook part 4121 and the second hook part 4131 of the first extension arm 412 and the second extension arm 413 cooperate with the first step 4222 and the second step 4223 to hook the first fixing part 41 and the second fixing part 42 together. The second through hole 4231 is a square hole, which can prevent the first extension arm 412 and the second extension arm 413 from rotating in the second through hole 4231, thereby limiting the relative rotation between the first fixing part 41 and the second fixing part 42; the first hook part 4121 and the second hook part 4131 cooperate with the first step 4222 and the second step 4223, which can also limit the relative rotation between the first fixing part 41 and the second fixing part 42.

[0044] The special-shaped part 423 is laterally attached to the inner side plane 3112 of the ring part 311 to inhibit the rotation of the special-shaped part 423 relative to the first through hole 3111, under the blocking action of the inner side plane 3112, when the first pipe part 2 and the second pipe part 3 rotate relative to each other, the special-shaped part 423 can rotate synchronously with the second pipe part 3.

[0045] The first pipe part 2 comprises a first pipe end 215, the first pipe end 215 extends to form a first plate part 216, and a cylinder 214 is located on the first plate part 216; the second pipe part 3 comprises a second pipe end 313, the second pipe end 313 extends to form a second plate part 314. The first plate part 216 is formed with a plurality of first reinforcing ribs 2161 on the side facing the central axis of the first pipe end 215, and the second plate part 314 is formed with a plurality of second reinforcing ribs 3141 on the side facing the central axis of the second pipe end 313. The plurality of first reinforcing ribs 2161 and the plurality of second reinforcing ribs 3141 increase the strength of the first plate part 216 and the second plate part 314.

[0046] A first threaded part 2152 is formed in the first pipe end 215, and a second threaded part 3132 is formed in the second pipe end 313; the bendable accessory 1 comprises a connecting hose 5, the first pipe part 2, the connecting hose 5, and the second pipe part 3 are sequentially in fluid communication, and the connecting hose 5 comprises a first connecting end 51 and a second connecting end 52, the first connecting end 51 and the second connecting end 52 are located at two ends of the connecting hose 5; in this embodiment, the connecting hose 5 constitutes a threaded hose, the first connecting end 51 extends into the first threaded part 2152, the first connecting end 51 and the first threaded part 2152 are screw-connected, and glue is applied between the first connecting end 51 and the first threaded part 2152 to achieve sealing and stable connection between the first connecting end 51 and the first threaded part 2152; the second connecting end 52 extends into the second threaded part 3132, the second connecting end 52 and the second threaded part 3132 are screw-connected, and glue is applied between the second connecting end 52 and the second threaded part 3132 to achieve sealing and stable connection between the second connecting end 52 and the second threaded part 3132.

[0047] The second pipe part 3 further comprises a first adapter part 315, the first adapter part 315 is located at one end of the second pipe part 3 away from the second locking part 31, and the first pipe part 2 further comprises a second adapter part 217, the second adapter part 217 is located at one end of the first pipe part 2 away from the first locking part 21.

[0048] The application also provides a dust collector comprising the bendable accessory 1, a suction hose assembly, and a dust collecting container, the suction hose assembly can be used to connect between the bendable accessory 1 and the dust collecting container, one end of the suction hose assembly is connected to the first adapter part 315, and when the dust collector works, the sucked garbage is sequentially guided to the dust collecting container through the bendable accessory 1 and the suction hose assembly along the suction air flow of the dust collector.

[0049] The bendable accessory 1 as a whole constitutes a bendable adapter or a bendable adapter pipe, the first adapter head 315 comprises an inner cylinder part 3150 and an outer cylinder part 3151, and is used for connecting different caliber pipe interfaces (such as one end interfaces of different caliber suction hose assemblies); the inner cylinder part 3150 is used for connecting a pipe interface with a smaller caliber, and the outer cylinder part 3151 is used for connecting a pipe interface with a larger caliber; the second adapter head 217 can be used for connecting one end interfaces of cleaner accessories (such as a floor brush, a flat suction cleaner, etc.).

[0050] In other embodiments, it can also be designed as:

[0051] The first locking part extends in a direction away from the second locking part to form a second flange, the second flange surrounds a cavity, and a plurality of limiting grooves are formed on the inner wall surface of the second flange. The locking mechanism comprises a third fixed part and a fourth fixed part. The third fixed part comprises a third base plate and a plurality of locking blocks, the plurality of locking blocks are located on the circumferential edge of the third base plate, and the third base plate is at least partially located in the cavity and the plurality of locking blocks are at least partially distributed in the corresponding limiting grooves. The fourth fixed part comprises a fourth base plate and a plurality of limiting teeth, the fourth base plate and the third base plate are fixed together by a fixing member, the fixing member penetrates through the ring part, the plurality of limiting teeth are located on the side of the fourth base plate facing the third base plate, a plurality of tooth grooves are formed on the second locking part, and the plurality of tooth grooves are used to accommodate the plurality of limiting teeth. When the third base plate is located at a position in contact with the ring part, the plurality of limiting teeth are disengaged from the plurality of tooth grooves. When the third base plate is moved towards the second locking part by the pushing force of a person's hand, the fourth fixed part moves synchronously with the third fixed part, thereby driving the plurality of limiting teeth to disengage from the plurality of tooth grooves, and at this time the second locking part can rotate relative to the first locking part, the third fixed part and the fourth fixed part. The fixing member can be a screw. The bendable accessory 1 further comprises a second spring, the second spring is located in the cavity and is kept in a compressed state, one end of the second spring abuts against the third base plate, and the third base plate is pushed away from the second locking part. By pressing the third base plate, the third base plate moves along the length direction of the limiting groove, and the second spring is further compressed to deform. When the movement of the third base plate is blocked by the ring part or the first locking part, the plurality of limiting teeth have disengaged from the plurality of tooth grooves, and at this time the first pipe part and the second pipe part can be bent to a preset angle. Then the third base plate is released, and under the action of the elastic force of the compressed second spring, the third base plate moves to the initial position, at this time the plurality of limiting teeth and the plurality of tooth grooves are matched with each other, achieving the effect of positioning the first pipe part and the second pipe part, thereby fixing the first pipe part and the second pipe part in a certain preset angle state.

[0052] The above embodiments are only the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope defined by the claims of the present application.

Claims

1. A bendable attachment for use with a vacuum cleaner, characterized in that, The locking mechanism further comprises a first spring and a first fixed part, the first fixed part comprises a first base plate; 2. The foldable attachment of claim 1, wherein, The locking mechanism further comprises a second fixed part, the first fixed part can be moved under the pushing force of a person's hand to drive the second fixed part to move along a first direction, the first direction is parallel to the rotation axis when the first pipe part rotates relative to the second pipe part; The second fixed part comprises a plurality of limiting protrusions, the first locking part is provided with a plurality of first limiting holes, the second locking part is provided with a plurality of second limiting holes, and the plurality of limiting protrusions can fall into the plurality of first limiting holes and the plurality of second limiting holes; The second fixed part further comprises a second base plate, and the plurality of limiting protrusions respectively extend from the second base plate integrally; The plurality of limiting protrusions are uniformly distributed in the circumferential direction around the rotation axis; the plurality of first limiting holes are uniformly distributed in the circumferential direction around the rotation axis; the plurality of second limiting holes are uniformly distributed in the circumferential direction around the rotation axis; the first base plate, the plurality of first limiting holes, the plurality of second limiting holes and the second base plate are arranged in sequence in the direction perpendicular to the first base plate; the first spring is located between the first locking part and the first base plate, and the first spring remains in a compressed state between the first locking part and the first base plate. The two ends of the first spring respectively abut against the first locking part and the first base plate, the circumferential edge of the locking hole of the first locking part extends in a direction away from the second locking part to form a first flange, the first flange surrounds part of the locking hole, the first flange is sleeved on the ring part, and the end of the first spring abutting against the first locking part surrounds the first flange.

3. The foldable attachment of claim 2, wherein, The first locking part extends in a direction away from the second locking part to form a cylinder, the first flange is located inside the cylinder, and the first base plate can move towards the inside of the cylinder to gradually approach the first flange.

4. The foldable attachment of claim 3, wherein, The locking mechanism comprises a first fixed part and a second fixed part, the first fixed part and the second fixed part are assembled together, the first fixed part can be moved under the pushing force of a person's hand to drive the second fixed part to move along a first direction, the first direction is parallel to the rotation axis when the first pipe part rotates relative to the second pipe part, and the ring part surrounds the rotation axis; 5. The foldable attachment of claim 1, wherein, ​ The second fixing part comprises a plurality of limiting protrusions, the first locking part is provided with a plurality of first limiting holes, the second locking part is provided with a plurality of second limiting holes, and the plurality of limiting protrusions can fall into the plurality of first limiting holes and the plurality of second limiting holes to limit the relative rotation between the first locking part and the second locking part, so that the first pipe part is positioned relative to the second pipe part.

6. The foldable attachment of claim 5, wherein, The plurality of first limiting holes and the plurality of second limiting holes are used for accommodating the plurality of limiting protrusions, the plurality of first limiting holes and the plurality of second limiting holes correspond to each other in the first direction, the first locking part and the second locking part are at different angles, and the plurality of limiting protrusions can fall into the plurality of first limiting holes and the plurality of second limiting holes.

7. The foldable attachment of claim 5, wherein, The first fixing part comprises a first base plate, and the first locking part comprises a plurality of limiting blocks; when the first base plate moves along the first direction to the limiting blocks and stops moving due to the abutment of the limiting blocks, at this time, the plurality of limiting protrusions are all separated from the plurality of first limiting holes but not separated from the plurality of second limiting holes, at this time, the first locking part can rotate relative to the second locking part, the first fixing part and the second fixing part; the plurality of limiting protrusions are not separated from the plurality of second limiting holes to limit the relative rotation between the first fixing part and the second fixing part.

8. The foldable attachment of claim 7, wherein, The first locking part extends in a direction away from the second locking part to form a cylinder, and the first base plate is at least partially located inside the cylinder; the plurality of limiting blocks are used to limit the movement distance of the first base plate along the first direction into the cylinder.

9. The foldable attachment of claim 5, wherein, The first fixing part comprises a first base plate, and the second fixing part further comprises a second base plate; the plurality of limiting protrusions are integrally extended from the second base plate respectively; the plurality of limiting protrusions extend from the second base plate towards the first base plate; the ring part and the locking hole are located between the first base plate and the second base plate; the first base plate, the plurality of first limiting holes, the plurality of second limiting holes and the second base plate can be arranged in sequence in the first direction.

10. The foldable attachment of claim 9, wherein, The first fixing part further comprises a plurality of abutting blocks, and the second fixing part further comprises a special-shaped part; the plurality of abutting blocks are used to push the special-shaped part to drive the second fixing part; the special-shaped part is integrally extended from the second base plate; the special-shaped part extends from the second base plate towards the first base plate; the plurality of limiting protrusions are distributed on the periphery of the special-shaped part; along with the force of a person's hand applied to the first base plate, the first fixing part moves along the first direction; the plurality of abutting blocks of the first fixing part abut against the special-shaped part to drive the second fixing part to move along the first direction, thereby driving the plurality of limiting protrusions of the second fixing part to separate from the plurality of first limiting holes of the first locking part along the first direction, so that the first locking part is no longer limited by the plurality of limiting protrusions and can rotate relative to the second locking part.

11. The foldable attachment of claim 10, wherein, The first fixing part comprises a first hook part and a second hook part, and the first hook part and the second hook part are used to hook the second fixing part; The ring part surrounds a first through hole, the special-shaped part penetrates through the first through hole, and the first base plate and the second base plate are located on opposite sides of the first through hole; the special-shaped part is limited by the plurality of abutting blocks and the first hook part and the second hook part.

12. The foldable attachment of claim 11, wherein, The first fixed part comprises a first extension arm, a second extension arm, a plurality of abutting blocks, and a first hook part and a second hook part. The first hook part is located at the end of the first extension arm away from the first base plate, and faces away from the second extension arm.

13. The foldable attachment of claim 12, wherein, The second hook part is located at the end of the second extension arm away from the first base plate, and faces away from the first extension arm.

14. The foldable attachment of claim 1, wherein, The first hook part and the second hook part are located on one side of the special-shaped part, and the plurality of abutting blocks are located on the opposite side of the special-shaped part.

15. The foldable attachment of claim 1, wherein, The plurality of abutting blocks extend from the first base plate towards the special-shaped part.

16. The foldable attachment of claim 1, wherein, The side edge of the first abutting block is connected to the first extension arm, and the side edge of the second abutting block is connected to the second extension arm. The first pipe part comprises a first pipe end, the first pipe end extends to form a first plate part, and the first locking part is located at one end of the first plate part. The second pipe part comprises a second pipe end, the second pipe end extends to form a second plate part, and the second locking part is located at one end of the second plate part. The side of the first plate part facing the central axis of the first pipe end forms a plurality of first reinforcing ribs, and the side of the second plate part facing the central axis of the second pipe end forms a plurality of second reinforcing ribs. The first pipe part, the connecting hose, and the second pipe part are sequentially in fluid communication. The first pipe part comprises a first pipe end, and the first pipe end forms a first threaded part inside. The second pipe part comprises a second pipe end, and the second pipe end forms a second threaded part inside. The connecting hose comprises a first connecting end and a second connecting end. The first connecting end extends into the first threaded part and is screw-connected with the first threaded part. The second connecting end extends into the second threaded part and is screw-connected with the second threaded part. The outer circumferential surface of the ring part abuts against the inner circumferential surface of the locking hole. With the relative rotation between the first pipe part and the second pipe part, the ring part rotates in the locking hole. When the ring part rotates in the locking hole, the outer circumferential surface of the ring part and the inner circumferential surface of the locking hole slide and rub.

17. The foldable attachment of claim 1, wherein, The first locking part extends in a direction away from the second locking part to form a second flange, the second flange has a cavity, and the inner wall surface of the second flange is provided with a plurality of limiting grooves; the locking mechanism comprises a third fixed part and a fourth fixed part, the third fixed part comprises a third base plate and a plurality of locking blocks, the plurality of locking blocks are located on the circumferential edge of the third base plate, the third base plate is at least partially located in the cavity, and the plurality of locking blocks are respectively at least partially located in the corresponding limiting grooves; the fourth fixed part comprises a fourth base plate and a plurality of limiting teeth, the fourth base plate and the third base plate are fixed together through a fixing piece, the fixing piece penetrates through the ring part, the plurality of limiting teeth are located on the side of the fourth base plate facing the third base plate, the second locking part is provided with a plurality of tooth grooves for accommodating the plurality of limiting teeth; when the third base plate is moved to the second locking part by the pushing force of the human hand, the fourth fixed part moves synchronously with the third fixed part, so as to drive the plurality of limiting teeth to be separated from the plurality of tooth grooves, so that the second locking part can rotate relative to the first locking part, the third fixed part and the fourth fixed part.

18. The foldable attachment of claim 17, wherein, Further comprising a second spring, the second spring is located in the cavity and remains in a compressed state, one end of the second spring abuts against the third base plate, and the third base plate is pushed away from the second locking part.

19. A vacuum cleaner comprising: The foldable accessory according to any one of claims 1-18. The foldable accessory according to any one of claims 1-18.

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