CN110710923A

CN110710923A - Extension tube for dust collector

Info

Publication number: CN110710923A
Application number: CN201810759406.6A
Authority: CN
Inventors: 王旭宁
Original assignee: Shang Kening's (hongkong) Ltd By Share Ltd
Current assignee: Shang Kening's (hongkong) Ltd By Share Ltd; Sharkninja Hong Kong Co Ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2020-01-21
Anticipated expiration: 2038-07-11
Also published as: CN110710923B

Abstract

The invention discloses an extension tube for a dust collector, which belongs to the field of electric appliances and solves the problem that the extension tube is provided with a wire which has large influence on an inner tube. The invention is mainly used for facilitating the assembly of the extension pipe and reducing the influence of arranging the electric wire on the inner pipe.

Description

Extension tube for dust collector

Technical Field

The invention relates to an electric appliance, in particular to an extension pipe for a dust collector.

Background

The existing dust collector is convenient for users to use, most of the existing dust collectors are provided with extension pipes, and the extension pipes can be connected between a dust collector main body and a dust collector suction head when the dust collector cleans the ground or high places, so that the working radius of the dust collector is increased. Because most of the existing suction heads of the dust collectors are also provided with motors for driving the rolling brushes, the main bodies of the dust collectors need to supply power to the motors. After the extension pipe is connected, the motor needs to be connected to a power source through the extension pipe.

The axial through hole that the power supply line was walked at inside shaping play of extension pipe is general, and from the cross section, the axial through hole can occupy the inside hole space that is used for the air current to flow of extension pipe, leads to extension pipe inner hole shape to become irregular, and rubbish receives the influence easily when passing through the extension pipe, forms the sanitary dead angle moreover easily on the baffle that separates axial through hole and inner hole, further influences dust absorption effect. In addition, the existing extension rod is mostly formed by integrally injection molding plastic parts, and a wiring channel is required to be formed by injection molding, so that the forming difficulty is high, the obtained extension rod is heavy, the appearance beauty is poor, and the overall use experience is poor.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide an extension tube for a dust collector, which is convenient to assemble and reduces the influence of an arranged electric wire on an inner tube.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an extension pipe for dust catcher, includes inner tube, cover and establishes the outer tube in the inner tube outside and locate first connector and the second connector at inner tube both ends respectively, at least one is the components of a whole that can function independently structure with inner tube or outer tube in first connector and the second connector, first connector is equipped with the first through-hole with the inner tube intercommunication, first connector and second connector are fixed the both ends of inner tube and outer tube respectively, the second connector is equipped with the second through-hole with the inner tube intercommunication, form the line passageway of walking between inner tube and the outer tube.

Furthermore, the first connector is provided with a first wiring terminal, the second connector is provided with a second wiring terminal, one end of the cable is connected with the first wiring terminal, and the other end of the cable extends along the wiring channel between the inner tube and the outer tube and is connected with the second wiring terminal.

Furthermore, the inner pipe and the outer pipe are arranged eccentrically, the outer diameter of the inner pipe is D, the inner diameter of the outer pipe is D, and D is more than 0.4D and less than D.

Furthermore, the outer wall of the inner tube is provided with a positioning buckle around which a positioning electric wire is wound.

Further, the location is detained including the spacing portion with the connecting portion of inner tube connection and spacing electric wire, forms the draw-in groove that the power supply line passed between the outer wall of spacing portion and inner tube.

Furthermore, spacing portion is equipped with two and distributes in the axial of inner tube and forms two draw-in grooves in the both sides of connecting portion, and the electric wire is walked around connecting portion and is passed another draw-in groove again and realize the location after passing a draw-in groove from location knot one side.

Furthermore, the outer wall of the inner pipe is provided with a support rib used for propping against the inner wall of the outer pipe, and the positioning buckle is not higher than the support rib.

Furthermore, first connector includes first linkage segment and first grafting section, and the outer tube connection is supported to first linkage segment, and the outer periphery of first linkage segment is concentric with the outer tube, and first grafting section is used for connecting the inner tube, and first through-hole runs through first linkage segment and first grafting section and is concentric with the inner tube.

Furthermore, the second connector comprises a second connecting section and a second inserting section, the second connecting section abuts against the outer pipe to be connected, the outer circumferential surface of the second connecting section is concentric with the outer pipe, and the second communicating hole penetrates through the second connecting section and the second inserting section and is concentric with the inner pipe.

Furthermore, the outer pipe is a metal pipe, and the inner pipe is a plastic pipe.

Furthermore, one end of the first connecting head connected with the inner pipe is provided with a first extension ring, the inner ring of the first extension ring forms a first accommodating groove for accommodating the end part of the outer pipe, a limiting rib is arranged in the first accommodating groove, the end part of the outer pipe is provided with a limiting groove, and the limiting rib and the limiting groove are matched to realize circumferential positioning of the inner pipe and the outer pipe.

After the technical scheme is adopted, the invention has the following advantages: the first connector and the second connector are connected with the inner pipe and simultaneously fix the outer pipe, so that the relative position relation between the outer pipe and the inner pipe is fixed, the assembly work of the inner pipe, the outer pipe, the first connector and the second connector is finished, a wiring channel is naturally formed, and the wire routing channel can be assembled at one time, and is simple and convenient; the wiring channel is formed between the inner tube and the outer tube, the flow area of the inner tube is not influenced, the tube hole of the inner tube can still keep a good cylindrical structure, garbage can conveniently and quickly pass through the wiring channel, sanitary dead corners cannot be generated, the electric wire is hidden in the wiring channel, and the electric connection is realized through the first wiring terminal and the second wiring terminal, so that the wiring channel is attractive, and in the using process of the extension tube, the electric wire cannot be drawn and extruded through the stress of the first wiring terminal and the second wiring terminal, so that the electric wire has a good protection effect and the service life of the extension tube is prolonged; the invention constructs the routing channel between the outer pipe and the inner pipe, which can reduce the difficulty of plastic injection of the plastic pipe and the total weight of the rod body, and the appearance of the invention adopts the metal pipe, which can keep the aesthetic property of the surface of the extension rod.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of an extension tube for a vacuum cleaner according to the present invention (the first connector is shown separately from the inner tube);

FIG. 2 is a cross-sectional view of an extension pipe for a vacuum cleaner according to the present invention;

FIG. 3 is a schematic view showing the construction of an extension pipe for a vacuum cleaner according to the present invention (without an outer pipe and a first joint)

FIG. 4 is an enlarged view taken at I in FIG. 2;

fig. 5 is an enlarged view at II in fig. 2.

Detailed Description

The invention provides an extension tube for a dust collector, which is seen by combining figures 1 and 2 and comprises an inner tube 1, an outer tube 2 and an electric wire 3, wherein the outer tube 2 is sleeved outside the inner tube 1, two ends of the inner tube 1 are respectively provided with a first connector 4 and a second connector 5, at least one of the first connector 4 and the second connector 5 and the inner tube 1 or the outer tube 2 are split structural parts, the first connector 4 comprises a first through hole 401 butted with the inner tube 1, the hole 401 is communicated with an inner cavity channel of the inner tube 1, the second connector 5 comprises a second through hole 501 butted with the inner tube 1, the hole 501 is also communicated with the inner cavity channel of the inner tube 1, the first connector 4 and the second connector 5 are provided with an outer tube 2 limiting structure used for fixing the outer tube 2 to form a routing channel 100 for routing the power supply wire 3 between the outer tube 2 and the inner tube 1, the first connector 4 and the second connector 5 are connected with the inner tube 1 and, the relative position relation between the outer pipe 2 and the inner pipe 1 is fixed, so that the assembly work of the inner pipe 1, the outer pipe 2, the first connector 4 and the second connector 5 is completed, the wiring channel 100 is naturally formed, and the assembly is simple and convenient in one step; first connector 4 is equipped with first binding post 6, and second connector 5 is equipped with second binding post 7, and first binding post 6 is connected to the one end of electric wire 3, and second binding post 7 is connected to the other end. Walk line passageway 100 and form between inner tube 1 and outer tube 2, do not influence the flow area of inner tube 1, the tube hole of inner tube still can keep good cylindrical structure, the rubbish of being convenient for passes through fast, can not produce the health dead angle, and electric wire 3 hides in walking line passageway 100, through first binding post 6, second binding post 7 realizes the electricity and connects, and is not only pleasing to the eye, and in the extension pipe use, through first binding post 6, second binding post 7 atress, electric wire 3 can not receive the traction, the extrusion, there is better guard action to electric wire 3, prolong its life.

For convenient assembly, reduce the influence of outer tube 2 size to inner tube 1 size simultaneously, can form line passageway 100 with inner tube 1 relative outer tube 2 eccentric settings, the external diameter of inner tube 1 is D, and the internal diameter of outer tube 2 is D, and 0.4D < D < D, the size range that inner tube 1 can adopt is wider.

See fig. 3 and 4, for making things convenient for the outer tube assembly, can influence the assembly of outer tube 2 because of the too big range of motion of electric wire 3, and the cable abnormal sound influences user experience, this embodiment is equipped with around the location knot 11 of putting location electric wire 3 at the outer wall of inner tube 1. Because the electric wire 3 generally only receives gravity and inertial force to act on in the routing channel 100, so only need to carry out simple location to the electric wire 3 can, in this embodiment, the location is detained 11 and is included the connecting portion 111 of being connected with the inner tube 1 and the spacing portion 112 of spacing electric wire 3, forms the draw-in groove 113 that the power supply line 3 passed between the outer wall of spacing portion 112 and inner tube 1. After the electric wire 3 passed through draw-in groove 113, spacing portion 112 can be spacing to electric wire 3 in the footpath of extension pipe, combines connecting portion 111 again to fix a position electric wire 3, and a draw-in groove 113 can fix a position electric wire 3, and in outer pipe assembling process, the electric wire can not remove at will, can not influence the outer tube assembly. Certainly, in order to improve the positioning effect of the electric wire 3, two limiting portions 112 may be provided and distributed on two sides of the connecting portion 111 in the axial direction of the inner tube 1 to form two slots 113, a T-shaped structure is formed as seen in fig. 4, and the electric wire 3 passes through one slot 113 from one side of the positioning buckle 11, then bypasses the connecting portion 111, and then passes through the other slot 113 to realize positioning.

Because the extension tube has a certain length, in order to improve the anti-deformation capability of the outer tube 2, the outer wall of the inner tube 1 may be provided with a support rib 12 for abutting against the inner wall of the outer tube 2, and in order to avoid the stress of the positioning buckle 11 as much as possible, the positioning buckle 11 may be designed to be not higher than the support rib 12. In addition, in order to improve the positioning effect of the electric wire 3, the positioning buckle 11 and the support ribs 12 can be arranged together, and the support ribs 12 are distributed on two sides of the positioning buckle 11 in the axial direction of the extension pipe, so that the electric wire 3 can be limited in the axial direction, and the probability that the electric wire 3 is separated from the clamping groove 113 can be reduced.

The first connector 4 is designed to allow airflow to flow smoothly to ensure a dust suction effect, and to be matched with the outer tube 2 to prevent the user from seeing the inner tube 1 eccentrically, the first connector 4 includes a first connection section 41 and a first insertion section 42, the first connection section 41 abuts against the outer tube 2 to be connected, an outer circumferential surface of the first connection section 41 is concentric with the outer tube 2, the first insertion section 42 is used for inserting the outer tube to connect the inner tube, and the first through hole 401 penetrates through the first connection section 41 and the first insertion section 42 and is concentric with the inner tube 1. The second connector 5 comprises a second connecting section 51 and a second plug-in section 52, the second connecting section 51 is connected with the outer tube 2 in a manner of propping against the outer tube, the outer circumferential surface of the second connecting section 51 is concentric with the outer tube 2, the second plug-in section 52 is used for connecting a suction head or a main body of the dust collector, and the second communication hole 501 penetrates through the second connecting section 51 and the second plug-in section 52 and is concentric with the inner tube 1. It will be appreciated that the second plug section 52 is intended for connection to a cleaner body, and the first connection section 41 is accordingly intended for connection to a cleaner head, and vice versa it is also possible that the second plug section 52 is intended for connection to a cleaner head, and the first connection section 41 is accordingly intended for connection to a cleaner body.

The materials of the outer tube 2 and the inner tube 1 are not limited in general, as long as the strength is satisfactory, the density is low, and the inner tube 1 is light, in this embodiment, the outer tube 2 is a metal tube, preferably an aluminum alloy tube, and the inner tube 1 is a plastic tube.

In order to improve the reliability of the assembly of the outer tube 2, a limiting structure of the outer tube 2 may be disposed at the first connector 4 and/or the second connector 5, and fig. 5 shows a preferred embodiment of the limiting structure, as shown in fig. 5, a first extending ring 43 is disposed at one end of the first connector 4 connected to the inner tube 1, an inner ring of the first extending ring 43 forms a first accommodating groove 402 for accommodating an end portion of the outer tube 2, a limiting rib is disposed in the first accommodating groove, a limiting groove is disposed at an end portion of the outer tube 2, the limiting rib and the limiting groove cooperate to realize circumferential positioning of the inner tube 1 and the outer tube 2, for more reliable positioning of the outer tube 2, a second extending ring may be disposed at one end of the second connector 5 connected to the inner tube 1, an inner ring of the second extending ring forms a second accommodating groove for accommodating an end portion of the outer tube 2, and the second accommodating groove has.

The first connector 4 and the second connector 5 can be selected to be directly integrated with the inner tube 1, or both can be selected to be assembled and fixed with the inner tube 1. In the present embodiment, the first connector 4 is fixedly assembled with the inner tube 1, and the second connector 5 is directly and integrally formed with the inner tube 1.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims

1. Extension pipe for dust catcher, its characterized in that: including inner tube, cover establish the outer tube in the inner tube outside and locate first connector and the second connector at inner tube both ends respectively, at least one and inner tube or outer tube are the components of a whole that can function independently structure in first connector and the second connector, first connector is equipped with the first through-hole with the inner tube intercommunication, the second connector is equipped with the second through-hole with the inner tube intercommunication, first connector and second connector are fixed the both ends of inner tube and outer tube respectively, form between inner tube and the outer tube and walk the line passageway.

2. The extension pipe for a vacuum cleaner as claimed in claim 1, wherein: the first connector is provided with a first wiring terminal, the second connector is provided with a second wiring terminal, one end of the cable is connected with the first wiring terminal, and the other end of the cable extends along a wiring channel between the inner tube and the outer tube and is connected with the second wiring terminal.

3. The extension pipe for a vacuum cleaner as claimed in claim 1 or 2, wherein the inner pipe is eccentrically disposed from the outer pipe, an outer diameter of the inner pipe is D, an inner diameter of the outer pipe is D, and 0.4D < D.

4. The extension pipe for vacuum cleaner as claimed in claim 1, wherein the outer wall of the inner pipe is provided with a positioning buckle around which a positioning wire is wound.

5. The extension pipe for a vacuum cleaner as claimed in claim 4, wherein the positioning buckle includes a connection portion connected to the inner pipe and a position-limiting portion for limiting the electric wire, and a slot for allowing the electric wire to pass is formed between the position-limiting portion and an outer wall of the inner pipe.

6. The extension pipe for vacuum cleaner as claimed in claim 4, wherein the outer wall of the inner pipe is provided with a support rib for abutting against the inner wall of the outer pipe, and the positioning buckle is not higher than the support rib.

7. The extension pipe for a vacuum cleaner as claimed in claim 1, wherein the first connector includes a first connection section and a first insertion section, the first connection section is connected against the outer pipe, an outer circumferential surface of the first connection section is concentric with the outer pipe, the first insertion section is used for connecting the inner pipe, and the first connection hole passes through the first connection section and the first insertion section and is concentric with the inner pipe.

8. The extension pipe for vacuum cleaner as claimed in claim 1 or 7, wherein the second connector comprises a second connection section and a second insertion section, the second connection section is connected against the outer pipe, an outer circumferential surface of the second connection section is concentric with the outer pipe, the second insertion section is used for connecting a suction head of the vacuum cleaner, and the second communication hole penetrates through the second connection section and the second insertion section and is concentric with the inner pipe.

9. The extension tube for vacuum cleaner as claimed in claim 1, wherein the outer tube is an aluminum alloy tube and the inner tube is a plastic tube.

10. The extension pipe for vacuum cleaner as claimed in claim 1, wherein the first connector has a first extension ring at an end thereof connected to the inner pipe, the inner ring of the first extension ring forms a first receiving groove for receiving an end of the outer pipe, a position-limiting rib is disposed in the first receiving groove, the end of the outer pipe has a position-limiting groove, and the position-limiting rib cooperates with the position-limiting groove to circumferentially position the inner pipe and the outer pipe.