Telescopic sleeve and dust collector

Abstract

The utility model provides a telescopic sleeve and a dust collector, and relates to the technical field of cleaning tools. The telescopic sleeve comprises a first sleeve assembly, the first sleeve assembly comprises a first movable inner pipe and a first movable outer pipe, the first movable inner pipe is partially located in the first movable outer pipe, a limiting groove extending in the extending direction of the first movable inner pipe is formed in the outer side of the first movable inner pipe, and a positioning groove is formed in the bottom of the limiting groove; the limiting assembly comprises a limiting plate located in the limiting groove, the limiting plate is provided with a plurality of positioning holes formed in the extending direction of the limiting plate at intervals, the adjusting assembly comprises an adjusting piece and an adjusting clamping ring, and the adjusting clamping ring is arranged on the peripheral side of the first movable inner pipe in a sleeving mode and used for being connected with the first movable outer pipe in a clamping mode. The adjusting part is installed at the adjusting clamping ring and comprises a positioning column capable of moving in the axial direction of the positioning hole, and the positioning column penetrates through the positioning hole and positions the first movable outer pipe and the first movable inner pipe when abutting against the bottom of the positioning groove. The telescopic sleeve is easy and convenient to adjust, accurate in positioning and simple in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning tools, and particularly relates to a telescopic sleeve and a vacuum cleaner. Background Art

[0002] Telescopic sleeves are widely used in connectors that require adjustable lengths, especially in scenarios that need to adapt to different working environments or operating distances, such as in the fields of cleaning equipment, photographic equipment, medical equipment, etc. Telescopic sleeves are very popular because of their flexibility and convenience.

[0003] In the prior art, the length adjustment of telescopic sleeves is usually carried out manually or by using complex adjustment mechanisms, which have problems such as inconvenient adjustment, inaccurate positioning, complex structure resulting in high cost or poor durability. Summary of the Utility Model

[0004] An object of the first aspect of the utility model is to provide a telescopic sleeve, which solves the technical problem that the telescopic distance adjustment of the telescopic sleeve in the prior art is not easy to control.

[0005] Another object of the first aspect of the utility model is to improve the sealing performance of the telescopic sleeve.

[0006] An object of the second aspect of the utility model is to provide a vacuum cleaner including the above-mentioned telescopic sleeve.

[0007] According to the object of the first aspect of the utility model, the utility model provides a telescopic sleeve, including:

[0008] A first sleeve assembly, including a first movable inner tube and a first movable outer tube. The first movable inner tube is partially located inside the first movable outer tube, and a limiting groove extending along the extension direction of the first movable inner tube is provided on the outer side of the first movable inner tube, and a positioning groove is provided at the bottom of the limiting groove;

[0009] A limiting assembly, extending along the axis of the first movable inner tube and fixedly connected to the first movable inner tube. The limiting assembly includes a limiting plate located in the limiting groove, and a plurality of positioning holes are arranged at intervals along its extension direction on the limiting plate;

[0010] An adjusting assembly, located on the top of the limiting plate. The adjusting assembly includes an adjusting member and an adjusting snap ring. The adjusting snap ring is sleeved on the outer peripheral side of the first movable inner tube, and the adjusting snap ring is used for clamping the first movable outer tube. The adjusting member is installed at the adjusting snap ring and includes a positioning post that can axially move along the positioning hole. When the positioning post passes through the positioning hole and abuts against the bottom of the positioning groove, the first movable outer tube and the first movable inner tube are positioned.

[0011] Optionally, the adjusting snap ring includes a first part and a second part located inside the first part. The first part and the second part enclose to form a first card slot for clamping the first movable outer tube.

[0012] The limiting component further includes: a positioning protrusion located at one end of the limiting plate close to the adjusting member. The top surface of the positioning protrusion is flush with the top of the second part, and a second card slot is provided at the bottom of the side of the positioning protrusion facing the first movable inner tube for clamping the first movable inner tube and the limiting plate.

[0013] Optionally, the limiting member further includes:

[0014] A limiting protrusion is located between the positioning protrusion and the second part of the adjusting snap ring, and the limiting protrusion is arranged to protrude towards the second part.

[0015] Optionally, the adjusting member further includes:

[0016] A pressing member is located at the top of the first part. One end of the pressing member is connected to the positioning post, and the other end is connected to the elastic member. The adjusting member is arranged such that when it is forced to move downward, it drives the positioning post to move upward.

[0017] Optionally, it further includes:

[0018] A second sleeve assembly is located inside the first sleeve assembly. The second sleeve assembly includes a second movable outer tube, a second movable inner tube, and a clamping member. And a part of the second movable inner tube is located inside the second movable outer tube. The clamping member is used to connect the second movable outer tube and the second movable inner tube.

[0019] Optionally, one end of the clamping member abuts against the inner wall of the second movable outer tube.

[0020] Optionally, the clamping member further includes:

[0021] A convex ring protrudes perpendicular to the outer peripheral surface of the second movable inner tube, and the convex ring is used to limit the second movable inner tube.

[0022] Optionally, it further includes:

[0023] A first connecting portion is located at one end of the first sleeve assembly, and the first connecting portion is used to fixedly connect the second movable inner tube and the first movable inner tube.

[0024] Optionally, the second movable inner tube is further provided with a third card slot, and the first connecting portion further includes:

[0025] The engaging part axially protrudes towards the first movable inner tube, and the engaging part cooperates with the third card slot to fixedly connect the second movable inner tube and the first connecting part.

[0026] According to the purpose of the second aspect of the present invention, the present invention also provides a vacuum cleaner, including the telescopic sleeve described in any one of the above, and the vacuum cleaner further includes:

[0027] A dust suction port, connected to the first movable outer tube, and the dust suction port is used for sucking dust;

[0028] A waste discharge port, connected to the first movable inner tube, and the waste discharge port is used for discharging the dust sucked by the dust suction port.

[0029] The telescopic sleeve of the present invention is provided with a limiting groove including a positioning groove on the outer wall of the first movable inner tube, and a limiting plate provided with a plurality of positioning holes is attached to the limiting groove. By using the adjusting component to adjust the overlapping part of the first movable inner tube and the first movable outer tube, that is, by passing the positioning column through the target positioning hole and abutting against the bottom of the positioning groove, the controllable adjustment of the length of the telescopic sleeve can be realized, and at the same time, the positioning stability of the adjusting component is improved, thereby improving the positioning accuracy and use convenience of the telescopic sleeve.

[0030] Further, one end of the clamping part of the present invention abuts against the inner wall of the second movable outer tube. In this embodiment, by setting the clamping part so that one end thereof abuts against the inner wall of the second movable outer tube, while the clamping part limits the second movable inner tube and the second movable outer tube, the second movable inner tube and the second movable outer tube are hermetically connected to improve the sealing performance of the telescopic sleeve and avoid the problem of insufficient sealing performance caused by the length adjustment of the single-layer telescopic sleeve.

[0031] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following takes the preferred embodiments of the present invention and combines with the drawings to describe in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 is a schematic structural diagram of a telescopic sleeve according to an embodiment of the present invention;

[0034] Figure 2 is a schematic structural diagram of a first movable inner tube according to an embodiment of the present invention;

[0035] Figure 3 is a schematic cross-sectional view of a telescopic sleeve according to an embodiment of the present utility model;

[0036] Figure 4 is a schematic installation view of an adjustment assembly and a positioning protrusion according to an embodiment of the present utility model;

[0037] Figure 5 is Figure 3 a schematic partial enlarged view of the location A shown;

[0038] Figure 6 is Figure 3 a schematic partial enlarged view of the location B shown;

[0039] Figure 7 is Figure 3 a schematic partial enlarged view of the location C shown;

[0040] Figure 8 is a schematic structural view of a vacuum cleaner according to another embodiment of the present utility model.

[0041] Reference numerals:

[0042] 100 - telescopic sleeve, 200 - vacuum cleaner, 10 - first sleeve assembly, 11 - first movable inner tube, 12 - first movable outer tube, 111 - limiting groove, 112 - positioning groove, 20 - limiting assembly, 21 - limiting plate, 22 - positioning hole, 23 - positioning protrusion, 231 - second clamping groove, 24 - limiting protrusion, 30 - adjustment assembly, 31 - adjusting member, 32 - adjusting clamping ring, 311 - positioning post, 321 - first part, 322 - second part, 323 - first clamping groove, 312 - pressing member, 33 - elastic member, 40 - second sleeve assembly, 41 - second movable outer tube, 42 - second movable inner tube, 43 - clamping member, 421 - third clamping groove, 431 - convex ring, 50 - first connecting portion, 60 - second connecting portion, 210 - dust suction port, 220 - waste discharge port. Detailed implementation manners

[0043] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0044] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Additionally, it should be noted that for ease of description, only the parts related to the present application rather than all structures are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0045] The terms "comprising" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0046] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0047] Figure 1 is a schematic structural diagram of a telescopic sleeve according to an embodiment of the present utility model, Figure 2 is a schematic structural diagram of a first movable inner tube according to an embodiment of the present utility model, Figure 3 is a schematic cross-sectional view of a telescopic sleeve according to an embodiment of the present utility model, Figure 4 is a schematic installation diagram of an adjustment assembly and a positioning protrusion according to an embodiment of the present utility model, Figure 5 is Figure 3 a schematic partial enlarged view of the position A shown in Figure 6 is Figure 3 a schematic partial enlarged view of the position B shown in Figure 7 is Figure 3 a schematic partial enlarged view of the position C shown in

[0048] As Figure 1 shown, the present utility model provides a telescopic sleeve 100. The telescopic sleeve 100 includes a first sleeve assembly 10, a limit assembly 20, and an adjustment assembly 30 (see Figure 3),The first sleeve assembly 10 includes a first movable inner tube 11 and a first movable outer tube 12. The first movable inner tube 11 is partially located inside the first movable outer tube 12, and a limiting groove 111 extending along the extension direction of the first movable inner tube 11 is provided on the outer side of the first movable inner tube 11. A positioning groove 112 is provided at the bottom of the limiting groove 111. The limiting component 20 extends along the axis of the first movable inner tube 11 and is fixedly connected to the first movable inner tube 11. The limiting component 20 includes a limiting plate 21 located in the limiting groove 111. The limiting plate 21 is provided with a plurality of positioning holes 22 arranged at intervals along its extension direction. The adjusting component 30 is located on the top of the limiting plate 21. The adjusting component 30 includes an adjusting member 31 and an adjusting clamping ring 32. The adjusting clamping ring 32 is sleeved on the outer peripheral side of the first movable inner tube 11. The adjusting clamping ring 32 is used to clamp the first movable outer tube 12. The adjusting member 31 is installed at the adjusting clamping ring 32 and includes a positioning post 311 that can axially move along the positioning hole 22. When the positioning post 311 passes through the positioning hole 22 and abuts against the bottom of the positioning groove 112, the first movable outer tube 12 and the first movable inner tube 11 are positioned.

[0049] In this embodiment, by providing a limiting groove 111 including a positioning groove 112 on the outer wall of the first movable inner tube 11, and attaching a limiting plate 21 provided with a plurality of positioning holes 22 to the limiting groove 111, the overlapping part of the first movable inner tube 11 and the first movable outer tube 12 is adjusted by the adjusting component 30. That is, by passing the positioning post 311 through the target positioning hole 22 and abutting against the bottom of the positioning groove 112, the controllable adjustment of the length of the telescopic sleeve 100 can be realized, and at the same time, the positioning stability of the adjusting component 30 is improved.

[0050] As Figure 4 shown, in a further embodiment, the adjusting clamping ring 32 includes a first part 321 and a second part 322 located inside the first part 321. The first part 321 and the second part 322 enclose a first clamping groove 323. The first clamping groove 323 is used to clamp the first movable outer tube 12. The limiting component 20 further includes a positioning protrusion 23. The positioning protrusion 23 is located at one end of the limiting plate 21 close to the adjusting member 31. The top surface of the positioning protrusion 23 is flush with the top of the second part 322, and a second clamping groove 231 is provided at the bottom of the side of the positioning protrusion 23 facing the first movable inner tube 11. The second clamping groove 231 is used to clamp the first movable inner tube 11 and the limiting plate 21. The adjusting clamping ring 32 is used to limit the first movable outer tube 12, and the positioning protrusion 23 is used to limit the first movable inner tube 11. Moreover, the second part 322 of the adjusting clamping ring 32 is flush with the top of the positioning protrusion 23, so that while the positioning protrusion 23 limits the first movable inner tube 11, it supports the first movable outer tube 12. Here, the first clamping groove 323 and the second clamping groove 231 face in opposite directions to respectively limit the first movable outer tube 12 and the first movable inner tube 11.

[0051] As Figure 5 shown, in a further embodiment, the limiting member further includes a limiting protrusion 24, the limiting protrusion 24 is located between the positioning protrusion 23 and the second part 322 of the adjusting snap ring 32, and the limiting protrusion 24 is arranged to protrude towards the second part 322. The limiting protrusion 24 is arranged to protrude from the bottom of the limiting plate 21 towards the second part 322 of the adjusting snap ring 32 so as to limit the adjusting snap ring 32, thereby limiting the adjusting assembly 30 and preventing the adjusting assembly 30 from displacing the adjusting snap ring 32 after the first telescopic outer tube and the first telescopic inner tube are adjusted to the target distance, thereby improving the stability of the adjusting assembly 30.

[0052] As Figure 4 shown, in a further embodiment, the adjusting member 31 further includes a pressing member 312, the pressing member 312 is located at the top of the first part 321, one end of the pressing member 312 is connected to the positioning post 311, and the other end is connected to the elastic member 33. The adjusting member 31 is arranged such that when it is forced to move downward, it drives the positioning post 311 to move upward. That is to say, one end of the pressing member 312 is connected to the positioning post 311 so that when the pressing member 312 is forced to move downward, it drives the positioning post 311 to move upward. After the first movable inner tube 11 and the first movable outer tube 12 are adjusted to the target distance, the pressing member 312 is loosened so that the positioning post 311 falls into the positioning hole 22 of the limiting plate 21 corresponding to the target distance, thereby realizing the convenience of adjusting the length of the telescopic sleeve 100. At the same time, the other end of the pressing member 312 is arranged to be connected to the elastic member 33, and the elastic member 33 is arranged on the top of the adjusting snap ring 32 so that when the pressing member 312 in the adjusting member 31 is forced to move downward, it receives an upward elastic force, avoiding direct contact between the pressing member 312 and the adjusting snap ring 32 resulting in deformation of the adjusting snap ring 32, and preventing damage to the first card slot 323 resulting in the adjusting assembly 30 being unable to fix the first movable outer tube 12, thereby improving the stability of the telescopic sleeve 100.

[0053] In a further embodiment, the telescopic sleeve 100 further includes a second sleeve assembly 40. The second sleeve assembly 40 is located inside the first sleeve assembly 10. The second sleeve assembly 40 includes a second movable outer tube 41, a second movable inner tube 42, and a clamping member 43. And a part of the second movable inner tube 42 is located inside the second movable outer tube 41. The clamping member 43 is used to connect the second movable outer tube 41 and the second movable inner tube 42. The second movable inner tube 42 is located inside the first movable inner tube 11, the second movable outer tube 41 is located inside the first movable outer tube 12, a part of the second movable inner tube 42 is located inside the second movable outer tube 41, and the second movable inner tube 42 and the second movable outer tube 41 are connected by the clamping member 43. By arranging multiple layers of sleeves in a stacked manner inside the telescopic sleeve 100, the overall telescopic amount of the telescopic sleeve 100 can be increased, thereby improving the telescopic flexibility of the telescopic sleeve 100. Here, the clamping member and the second movable inner tube are connected by an interference connection. In other embodiments, the clamping member and the second movable inner tube are fixedly connected by a threaded connection.

[0054] As Figure 5 shown, in a further embodiment, one end of the clamping member 43 abuts against the inner wall of the second movable outer tube 41. In this embodiment, by arranging the clamping member 43 such that one end thereof abuts against the inner wall of the second movable outer tube 41, while the clamping member 43 limits the second movable inner tube 42 and the second movable outer tube 41, the second movable inner tube 42 and the second movable outer tube 41 are hermetically connected, so as to improve the sealing performance of the telescopic sleeve 100 and avoid the problem of insufficient sealing performance when the length of the single-layer telescopic sleeve 100 is adjusted.

[0055] As Figure 5 shown, in a further embodiment, the clamping member 43 further includes a convex ring 431. The convex ring 431 is arranged to protrude towards the outer peripheral surface of the second movable inner tube 42 perpendicular to it. The convex ring 431 is used to limit the second movable inner tube 42. The second movable inner tube 42 is sleeved on the periphery of the clamping portion, and the end of the second movable inner tube 42 abuts against the convex ring 431. That is, the convex ring 431 realizes the limitation of the second movable inner tube 42, and the end of the clamping portion abuts against the inner wall of the second movable outer tube 41 to limit the second movable outer tube 41, thereby improving the sealing performance of the second sleeve assembly 40.

[0056] In a further embodiment, the telescopic sleeve 100 further includes a first connecting portion 50. The first connecting portion 50 is located at one end of the first sleeve assembly 10. The first connecting portion 50 is used for fixedly connecting the second movable inner tube 42 and the first movable inner tube 11. In this embodiment, the ends of the second movable inner tube 42 and the first movable inner tube 11 away from the adjusting assembly 30 are fixedly connected to the first connecting portion 50. The first connecting portion 50 positions the second movable inner tube 42 and the first movable inner tube 11, so that when the adjusting assembly 30 is used to adjust the distance between the first movable inner tube 11 and the first movable outer tube 12, the second movable inner tube 42 and the second movable outer tube 41 are synchronously adjusted in distance with the first movable inner tube 11 and the first movable outer tube 12, thereby realizing the convenience of adjusting the telescopic sleeve 100 while ensuring the sealing performance of the telescopic sleeve 100.

[0057] In this embodiment, the telescopic sleeve 100 further includes a second connecting portion 60. The second connecting portion 60 is located at the end of the first movable outer tube 12 away from the adjusting assembly 30. The second connecting portion 60 is connected to the first movable outer tube 12 and the second movable outer tube 41 to position the first movable outer tube 12 and the second movable outer tube 41, so that when the adjusting assembly 30 is used to adjust the distance between the first movable inner tube 11 and the first movable outer tube 12, the second movable inner tube 42 and the second movable outer tube 41 are synchronously adjusted in distance with the first movable inner tube 11 and the first movable outer tube 12, thereby realizing the convenience of adjusting the telescopic sleeve 100 while ensuring the sealing performance of the telescopic sleeve 100.

[0058] In a further embodiment, the second movable inner tube 42 is further provided with a third card slot 421. The first connecting portion 50 further includes a engaging member that axially protrudes toward the first movable inner tube 11. The engaging member cooperates with the third card slot 421 to fixedly connect the second movable inner tube 42 and the first connecting portion 50. In this embodiment, the second movable inner tube 42 is arranged to be connected to the second movable outer tube 41 through a clamping member 43, so that when the first movable inner tube 11 and the second movable outer tube 41 are adjusted through the adjusting assembly 30, the second movable inner tube 42 and the second movable outer tube 41 are simultaneously adjusted by the same length.

[0059] Figure 8 is a schematic structural diagram of a vacuum cleaner according to another embodiment of the present invention.

[0060] As Figure 8As shown, the present utility model further provides a vacuum cleaner 200, which includes the above-mentioned telescopic sleeve 100. Regarding the telescopic sleeve 100, details will not be repeated here. The vacuum cleaner 200 further includes a dust suction port 210 and a waste discharge port 220. The dust suction port 210 is connected to the first movable outer tube 12, and the dust suction port 210 is used for sucking dust. The waste discharge port 220 is connected to the first movable inner tube 11, and the waste discharge port 220 is used for discharging the dust sucked by the dust suction port 210. In this embodiment, the vacuum cleaner 200 includes a telescopic sleeve 100, a dust suction port 210, and a waste discharge port 220. The telescopic sleeve 100 of the machine can be set to have an adjustable length to adjust the distance between the dust suction port 210 and the waste discharge port 220, so as to adjust the length according to the user's needs, meet the use requirements, and improve the convenience of use of the vacuum cleaner 200.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0062] The above-described embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A telescopic sleeve, characterized in that: include: A first sleeve assembly, comprising a first movable inner tube and a first movable outer tube, wherein the first movable inner tube is partially located inside the first movable outer tube, and a limiting groove extending along an extending direction of the first movable inner tube is provided on the outer side of the first movable inner tube, and a positioning groove is provided at the bottom of the limiting groove; a limiting assembly extending along the axis of the first movable inner tube and fixedly connected to the first movable inner tube, the limiting assembly comprising a limiting plate located in the limiting groove, the limiting plate being provided with a plurality of positioning holes arranged at intervals along its extending direction; An adjusting component is located on the top of the limiting plate, and the adjusting component includes an adjusting member and an adjusting snap ring. The adjusting snap ring is sleeved on the outer peripheral side of the first movable inner tube, and the adjusting snap ring is used to clamp the first movable outer tube. The adjusting member is installed at the adjusting snap ring and includes a positioning column that can move axially along the positioning hole. The positioning column passes through the positioning hole and abuts against the bottom of the positioning groove to position the first movable outer tube and the first movable inner tube.

2. The telescopic sleeve according to claim 1, characterized in that: The adjusting clamping ring comprises a first part and a second part located inside the first part, the first part and the second part are surrounded to form a first clamping groove, and the first clamping groove is used to clamp the first movable outer tube; The limiting assembly also includes: a positioning protrusion, which is located at one end of the limiting plate close to the adjusting member, the top surface of the positioning protrusion is flush with the top of the second part, and a second clamping groove is provided at the bottom of the positioning protrusion facing the first movable inner tube, and the second clamping groove is used to clamp the first movable inner tube and the limiting plate.

3. The telescopic sleeve according to claim 2, characterized in that: The limiting component also includes: The limiting protrusion is located between the positioning protrusion and the second part of the adjusting clamp ring, and the limiting protrusion is configured to protrude toward the second part.

4. The telescopic sleeve according to claim 3, characterized in that: The adjusting member also includes: The pressing member is located at the top of the first part, one end of the pressing member is connected to the positioning column, and the other end is connected to the elastic member. The adjusting member is configured to drive the positioning column to move upward when it is forced to move downward.

5. The telescopic sleeve according to any one of claims 1 to 4, characterized in that: Also includes: The second sleeve assembly is located inside the first sleeve assembly, and the second sleeve assembly includes a second movable outer tube, a second movable inner tube and a clamping piece, and the second movable inner tube portion is located inside the second movable outer tube, and the clamping piece is used to connect the second movable outer tube and the second movable inner tube.

6. The telescopic sleeve according to claim 5, characterized in that: One end of the clamping piece abuts against the inner wall of the second movable outer tube.

7. The telescopic sleeve according to claim 6, characterized in that: The card connector also includes: A convex ring protrudes toward and is perpendicular to the outer circumferential surface of the second movable inner tube, and the convex ring is used to limit the second movable inner tube.

8. The telescopic sleeve according to claim 7, characterized in that: Also includes: The first connecting portion is located at one end of the first sleeve assembly, and the first connecting portion is used to fixedly connect the second movable inner tube and the first movable inner tube.

9. The telescopic sleeve according to claim 8, characterized in that: The second movable inner tube is further provided with a third clamping groove, and the first connecting portion further comprises: A clamping piece protrudes axially toward the first movable inner tube, and the clamping piece cooperates with the third clamping groove to fixedly connect the second movable inner tube and the first connecting portion.

10. A vacuum cleaner comprising the telescopic sleeve according to any one of claims 1 to 9, characterized in that: The vacuum cleaner also includes: A dust suction port connected to the first movable outer tube, the dust suction port being used to suck dust; A waste discharge port is connected to the first movable inner tube, and the waste discharge port is used to discharge the dust sucked by the dust suction port.

Images