CN210697488U - Dust collector and bent pipe connecting assembly thereof - Google Patents

Abstract

The utility model discloses a dust collector and a bent pipe connecting component thereof, wherein, the bottom end of the bent pipe is provided with a convex part extending outwards; the bent pipe cover plate is positioned on the outer side of the bent pipe, abuts against the top surface of the convex part and is fixedly connected with the connector; the bent pipe cover plate or the connector is attached to the bottom surface of the protruding part to support the bent pipe. The application provides a return bend coupling assembling is provided with bellying and return bend apron, and the return bend apron compresses tightly the bellying downwards, avoids connector and return bend pine to take off, has realized improving the effect of return bend and connector assembly fastness.

Description

Dust collector and bent pipe connecting assembly thereof

Technical Field

The utility model relates to a dust collecting equipment technical field, more specifically say, relate to a return bend coupling assembling. Furthermore, the utility model discloses still relate to a dust catcher including above-mentioned return bend coupling assembling.

Background

The dust collector is a cleaning device commonly used in daily life, and generates air negative pressure in a sealed shell through the rotation of blades to absorb dust and achieve the cleaning effect.

The connector and the elbow are important structural components of the dust collector and are also parts which are easy to break down in the dust collector. The connector setting is on the scrubbing brush, and the return bend setting is on the handle, and in the in-service use, for the convenience of user's use, the scrubbing brush is movable part, and return bend and connector need relative motion. Because the two parts move relatively, the joint of the elbow and the connector is loosened frequently, and the normal work of the dust collector is influenced.

In summary, how to avoid the bend from loosening from the connector is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an elbow connecting assembly, it can improve the stability that return bend and connector are connected, avoids the two pine to take off. The utility model also aims to provide a dust collector comprising the elbow connecting component.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides an elbow connecting assembly, includes return bend and connector, still including locating the return bend outside, and with connector fixed connection's return bend apron, the bottom of return bend is equipped with the bellying that extends to the outside, return bend apron or the connector with the bottom surface laminating of bellying, in order to support the return bend, return bend apron with the top surface of bellying offsets.

Preferably, the middle part of the bent pipe cover plate is provided with a through hole, the bent pipe is arranged in the through hole, and the protruding part is annular.

Preferably, the bottom surface of bellying with the top surface laminating of connector, return bend apron formula structure as an organic whole.

Preferably, the elbow cover plate and the connector are fixed through fastening bolts.

Preferably, the number of the fastening bolts is three, and the three fastening bolts are uniformly distributed along the circumferential direction of the elbow pipe.

Preferably, a gap is formed between the side wall of the through hole and the bent pipe, so that the bent pipe and the connector can rotate relatively.

Preferably, the top of connector is equipped with annular protruding, the bellying is located annular bellied middle part, the top surface of bellying with annular bellied top surface parallel and level, the through-hole is the shoulder hole, downward step face in the shoulder hole with the bellying top surface offsets.

A dust collector comprises any one of the bent pipe connecting assemblies.

The utility model provides an elbow connecting assembly includes return bend, connector, return bend apron, and the bellying of return bend bottom extends to the outside, and the return bend apron sets up in the outside of return bend and fixed with the connector, and the bottom surface of return bend receives the support of connector or return bend apron, and the top surface of bellying offsets with the bottom surface of return bend apron simultaneously.

In the return bend coupling assembling that this application provided, return bend apron is fixed with the connector, and the bellying top offsets with return bend apron, the bottom is supported simultaneously, so the bellying of return bend is by the centre gripping in a fixed region and difficult and the connector pine takes off, has realized improving the effect of return bend and connector assembly fastness.

The application also provides a dust collector with the beneficial effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a vacuum cleaner provided by the present invention;

fig. 2 is a schematic structural view of the elbow connection assembly provided by the present invention;

fig. 3 is a cross-sectional view of the elbow connection assembly provided by the present invention.

The reference numerals in FIGS. 1-3 are:

elbow 1, elbow apron 2, connector 3, bellying 4, clearance 5, annular arch 6.

Detailed Description

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

The core of the utility model is to provide a return bend coupling assembling, its stability that can improve return bend and connector and connect avoids the two pine to take off. The other core of the utility model is to provide a dust collector comprising the elbow connecting component.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a vacuum cleaner provided by the present invention; fig. 2 is a schematic structural view of the elbow connection assembly provided by the present invention; fig. 3 is a cross-sectional view of the elbow connection assembly provided by the present invention.

The application provides a return bend coupling assembling, including return bend 1, return bend apron 2, connector 3, return bend apron 2 be located return bend 1 the outside, and with 3 fixed connection of connector, the bottom of return bend 1 is equipped with the bellying 4 that extends to the outside, return bend apron 2 or connector 3 with the bottom surface laminating of bellying 4, in order to support return bend 1, return bend apron 2 offsets with the top surface of bellying 4.

Specifically, the middle of the elbow 1 is an axis, and the boss 4 is located at the bottom end of the elbow 1 and extends in a direction away from the axis. Bent pipe apron 2 is fixed through bolt joint, joint or other modes with connector 3, and bent pipe apron 2 is established boss 4 lid inside self simultaneously.

In the working process, dust and sewage extracted by the floor brush flow from the connector 3 to the elbow pipe 1, the elbow pipe cover plate 2 is abutted against the convex part 4, and when the elbow pipe 1 moves towards the direction far away from the connector 3, the elbow pipe cover plate 2 presses the convex part 4 downwards; meanwhile, the convex part 4 is supported by the bent pipe cover plate 2 or the connector 3 and cannot move downwards. That is, the convex part 4 of the elbow 1 is clamped in a fixed area by the elbow cover plate 2 and the connector 3 in a matching way, or is clamped in the fixed area by the elbow cover plate 2, thereby avoiding the elbow 1 and the connector 3 from loosening, and ensuring that the dust collector has good working performance.

Optionally, the shape of the protruding portion 4 and the bent pipe cover plate 2 may be multiple, for example, the protruding portion 4 may include a plurality of protruding blocks distributed at intervals, the bent pipe cover plate 2 may include a plurality of arc plates distributed at intervals, and in the relative rotation process of the bent pipe 1 and the connector 3, the arc plates can always press the protruding blocks downwards, and the protruding blocks are prevented from being separated from the notches between the adjacent arc plates. In order to improve the strength and the sealing performance of the joint between the elbow 1 and the connector 3, in the embodiment, it is preferable that the middle of the elbow cover plate 2 is provided with a through hole, the elbow 1 is arranged in the through hole, and the protruding portion 4 is annular. Then under the assembled condition, the cyclic annular top surface of bellying 4 is laminated with the bottom surface of return bend apron 2, compares in the lug and the arc that have the breach in the middle part, and loop configuration can increase the area of contact of bellying 4 and return bend apron 2, makes the leakproofness of the two better, and joint strength is higher.

Further, in order to optimize the result of use of return bend coupling assembling, the application provides an embodiment, the bottom surface of bellying 4 and the top surface laminating of connector 3, return bend apron 2 formula structure as an organic whole. Specifically, if the top surface and the bottom surface of boss 4 all laminate with return bend apron 2, then in order to make the two normal assembly, return bend apron 2 need adopt split type structure, and two independent return bend apron piecemeal concatenations use to realize being connected of return bend 1 and connector 3 promptly, and the mode of return bend apron 2 components of a whole that can function independently processing can cause the inconvenience of course of working and assembling process, consequently preferred processing to return bend apron 2 through injection moulding or other integrated into one piece's processing mode.

Optionally, during actual assembly, elbow cover plate 2 and connector 3 can be connected through the buckle, and consider that the buckle is easy to be out of shape at the in-process of moulding plastics, lead to the difficult adjustment in clearance 5 of buckle, cause the jamming of return bend 1 easily. Therefore, in the embodiment of assembling the elbow cover plate 2 and the connecting head 3 provided by the present application, the elbow cover plate 2 and the connecting head 3 are fixed by fastening bolts. During actual assembly, can use a plurality of fastening bolt fixed return bend apron 2, the fastness that guarantee return bend apron 2 and connector 3 are connected. For example, three fastening bolts are used for fixing, and the three fastening bolts are evenly distributed along the circumferential direction of the bent pipe 1.

Further, in order to ensure the relative rotation between the elbow 1 and the connector 3, on the basis of the above embodiment, a gap 5 is provided between the side wall of the through hole in the middle of the elbow cover plate 2 and the elbow 1, so that the elbow 1 and the connector 3 can rotate relatively. Specifically, the bottom end of the elbow 1 is usually an inclined plane at present, that is, an included angle between the bottom surface of the elbow 1 and the axis of the elbow 1 is smaller than 90 degrees, and in the actual use process, the elbow 1 rotates around a rotating shaft perpendicular to the inclined plane, so that the elbow 1 and the connector 3 rotate relatively. And in the relative pivoted in-process, the position of return bend 1 self axis can change for the inclined plane, the position of the lateral wall of return bend 1 can change for the inclined plane promptly, in order to avoid return bend apron 2 to cause the interference to the rotation of return bend 1, the through-hole in return bend apron 2 middle part is provided with dodges the breach, at return bend 1, return bend apron 2, under the connector 3 assembled state, leave clearance 5 between the inside wall of return bend 1 lateral wall and return bend apron 2 middle part through-hole in advance, thereby provide the activity space for return bend 1, guarantee the normal relative motion of return bend 1 and connector 3.

Optionally, in an embodiment provided by the present application, the top end of the connector 3 is provided with an annular protrusion 6, the protruding portion 4 is disposed in the middle of the annular protrusion 6, the top surface of the protruding portion 4 is flush with the top surface of the annular protrusion 6, the through hole is a stepped hole, and a downward stepped surface in the stepped hole abuts against the top surface of the protruding portion 4 and the top surface of the annular protrusion 6. Specifically, the middle part of the annular bulge 6 is downwards sunken, and a mounting groove is formed at the top of the connector 3, and the groove top of the mounting groove is flush with the top of the bulge 4; the specific structure of the annular bulge 6 can be circular or irregular, and the middle part is provided with an installation groove with a circular section. The through hole in the middle of the bent pipe cover plate 2 is of a step-shaped structure, wherein the step surface is extruded downwards, and the protruding part 4 and the annular protrusion 6 with the same top are covered inside the bent pipe cover plate.

In addition to above-mentioned return bend coupling assembling, the utility model discloses still provide a dust catcher including above-mentioned arbitrary return bend coupling assembling, the stability that return bend 1 and connector 3 in this dust catcher are connected is higher, the two is difficult for the pine to take off. The structure of other parts of the vacuum cleaner is referred to the prior art, and the details are not repeated herein.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The dust collector and the bent pipe connecting component thereof provided by the utility model are introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (8)

1. The utility model provides an elbow connecting assembly, includes return bend (1) and connector (3), its characterized in that, still including locating return bend (1) outside and with connector (3) fixed connection's return bend apron (2), the bottom of return bend (1) is equipped with bellying (4) that extend to the outside, return bend apron (2) or connector (3) with the bottom surface laminating of bellying (4), in order to support return bend (1), return bend apron (2) with the top surface of bellying (4) offsets.

2. Elbow connection assembly according to claim 1, wherein the elbow cover plate (2) is provided with a through hole in the middle, the elbow (1) is provided in the through hole, and the protrusion (4) is ring-shaped.

3. Elbow connection assembly according to claim 2, wherein the bottom surface of the protrusion (4) is attached to the top surface of the connector (3), and the elbow cover plate (2) is a one-piece structure.

4. Elbow connection assembly according to claim 2, characterized in that the elbow cover plate (2) and the connector (3) are fixed by means of fastening bolts.

5. Elbow connection assembly according to claim 4, characterized in that the number of fastening bolts is three and that three fastening bolts are evenly distributed along the circumference of the elbow (1).

6. Elbow connection assembly according to any of claims 2-5, characterized in that a gap (5) is provided between the side wall of the through hole and the elbow (1) for relative rotation of the elbow (1) and the connection head (3).

7. An elbow connection assembly according to claim 6, wherein the top end of the connector (3) is provided with an annular protrusion (6), the protrusion (4) is arranged in the middle of the annular protrusion (6), the top surface of the protrusion (4) is flush with the top surface of the annular protrusion (6), the through hole is a stepped hole, and a downward stepped surface in the stepped hole abuts against the top surface of the protrusion (4) and the top surface of the annular protrusion (6).

8. A vacuum cleaner comprising the elbow connection assembly according to any one of claims 1 to 7.

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