KR0133735B1 - Extention pipe of a vacuum cleaner - Google Patents

Abstract

The present invention relates to an extension pipe coupling structure of a vacuum cleaner, and more particularly, there is no need to separate and store the extension pipes, and the extension pipes of the vacuum cleaner have been greatly improved in usability due to easy connection between the extension pipes. It is about.

The present invention, in the extension tube coupling structure of the vacuum cleaner, the first side of the first extension pipe is formed in the upper portion is reduced in the fitting portion is reduced, having a hollow body, the concave guide of the concave guide in the longitudinal direction on both sides The fitting portion of the hollow body structure is inserted into the front end and can be coupled to the first extension pipe, both sides of the concave guide grooves are formed in the longitudinal direction of the second extension pipe and each guide groove of the first and second extension pipe A link member which is inserted and movable to form a guide protrusion on the inner side and which is operable in any one of folding and linear engagement of the first and second extension tubes while the first and second extension tubes are connected. Provides a folding extension tube of the vacuum cleaner comprising a.

Description

Foldable extension tube of vacuum cleaner

1 is a perspective view showing an appearance configuration of a general vacuum cleaner.

2 is a partially cutaway perspective view of an extension tube showing a press-fit fitting state according to the prior art configuration.

3 is an exploded perspective view of the folded extension tube according to the present invention.

Figure 4 is a) -d) is a joining sequence diagram of the folding extension tube according to the present invention.

5 is a block diagram showing a storage state of the vacuum cleaner having a folded extension tube according to the present invention.

* Description of the symbols for the main parts of the drawings *

2: main body 22: first extension pipe

23: fitting portion 26a, 26b: guide

30: second extension pipe 40: link member

45a, 45b: guide protrusion 47a, 47b: incision

51: hanging projection

The present invention relates to an extension pipe coupling structure of a vacuum cleaner, and more particularly, there is no need to separate and store the extension pipes, and the extension pipes of the vacuum cleaner have been greatly improved in usability due to easy connection between the extension pipes. It is about.

Generally, the vacuum cleaner has a dust collecting chamber and a driving chamber (not shown) partitioned by an inner partition wall as shown in FIG. 1, and the main body 2 is free to move by the wheels 1, and An extension pipe (7) having a suction pipe (3) for suctioning dust and the like detachably attached thereto, and a handle tube (5) having a suction force control switch portion (4) formed at the other end thereof and connected and connected in multiple stages; A flexible hose 9 is coupled to the handle tube 5 to form an air passage and is coupled to the hose connecting portion 8 at the end to be freely attached to and removed from the dust collecting chamber in the main body 2.

In addition, the vacuum cleaner as described above can be used by inserting into one end of the extension pipe (7) to remove foreign substances such as sand stuck in the window frame or corner of the house or the inside of the car (not shown) The auxiliary brushes are usually stored in a separate auxiliary brush holder 10 provided in the main body.

On the other hand, Figure 2 shows the coupling means of the multi-stage extension tube (7), the connecting portion (7a) formed on one side rear end of the lower extension tube 7 has a tapered shape, of the upper extension tube (7) It is inserted into the recessed inclined surface 7b formed at one side lower end.

At this time, the end surface of the concave inclined surface 7b of the extension tube 7 is also tapered to accommodate the connection portion 7a.

In other words, the multi-stage extension pipe 7 has a structure in which the coupling portion 7a and the concave inclined surface 7b are coupled and fixed by force fitting.

Problems caused by the above conventional technology are as follows.

In other words, the larger the area where the outer peripheral surface of the connecting portion 7a is in contact with the inner surface of the extension tube 7, the larger the frictional force is. Are not easily separated. However, when the user completes the cleaning work, the multi-stage extension pipes must be separated from each other and stored separately to store them. Therefore, the risk of loss of the extension pipes is very high. It is difficult to assemble because it should be.

Therefore, the present invention has been made to solve the above problems, the object is that, after the completion of the cleaning operation is not necessary to separate and store the extension tube to prevent the risk of loss, when combined with each other for the cleaning operation It is to provide a folding extension tube of the vacuum cleaner is greatly improved in the convenience of use because the connection between the extension pipe is made easily.

In order to achieve the above object, the present invention, in the extension pipe coupling structure of the vacuum cleaner, the one side upper end is formed with a reduced diameter fitting portion, has a hollow body structure, both sides of the concave guide grooves in the longitudinal direction The first extension tube formed, the fitting portion of the first extension tube has a hollow body structure that can be inserted into the front end coupled to the first extension tube, the second extension tube and the first formed in the longitudinal direction concave guide grooves on both sides And any one of the folding and linear couplings of the first and second extension pipes in a state where the guide protrusions are inserted into the guide grooves of the second extension pipe and are movable on the inner side, and the first and second extension pipes are connected to each other. By providing a folding extension tube of the vacuum cleaner, characterized in that it comprises a link member mounted to enable one operation .

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the folded extension tube of the vacuum cleaner according to the present invention will be described in detail as follows.

That is, as shown in Figure 3, the folding extension tube 20 according to the present invention is a link member that allows the folding and linear coupling in a state in which two adjacent extension pipes 22, 30 are connected to each other 40.

The first extension pipe 22 constituting any one of the two extension pipes 22 and 30 adjacent to each other has a fitting portion 23 having a reduced diameter at one upper end thereof, and has a hollow body 25 structure. On both sides, concave guide recesses 26a and 25b are formed in the longitudinal direction, respectively. In addition, the first extension pipe 22 may be equipped with a suction brush 3 on the opposite side of the fitting portion 23, or another third extension pipe (not shown) may be coupled to the first extension pipe ( 22) may be any of them. Each of the guide grooves 26a and 26b has the hollow body without the upper and lower ends 27a and 27b extending to the upper and lower ends 28a and 28b of the hollow body 25. It is formed so as to reach a position close to the upper and lower ends 28a and 28b of the 25, and the inclined surface 23a is formed at the tip of the fitting portion 23.

On the other hand, the fitting portion 23 of the first extension tube 22 is inserted into the front end portion 32, the second extension tube 30 which can be coupled to the first extension tube 22 has a structure of the hollow body 33 Concave guide grooves 36a and 36b are formed in the longitudinal direction on both sides, and the handle part 4 of the vacuum cleaner is formed on the opposite side of the front end portion 32 into which the fitting portion 23 is inserted. Other fourth extension pipe (not shown) may be connected, and the second extension pipe 30 may be any of them. Each of the guide recesses 36a and 36b has the upper and lower ends 37a and 37b not extending to the upper and lower ends 38a and 38b of the hollow body 33, respectively. It is formed so as to reach a position close to the upper and lower ends of (33).

In addition, the first and second extension pipes 22, 30 are connected to each other in the state of being connected to enable the operation of any one of the folding and linear coupling of the first and second extension pipes 22, 30. The link member 40 has a hollow body 42 which is fitted to the outside of the first and second extension pipes 22 and 30, and the inner surface of the body 42 has respective guide recesses ( Guide protrusions 45a and 45b which are inserted into the movable parts 26a, 26b, 36a and 36b, and which are movable, and the upper and lower edges of the body 42 are cut portions 47a and 47b of constant size. And first and second extension pipes 22 and 30 are inserted into the cutouts 47a and 47b, respectively.

In addition, the upper and lower edges of the body 42 are arranged coaxially, that is, when the first and second extension pipes 22, 30 are arranged linearly with each other, as shown in Fig. 4B). When the first and second extension pipes 22, 30 of each of the corners to form a straight portion (48a, 48b) in contact with, and the outer edge of the lower edge of the body 42 a-shaped locking projection (51) Is formed, and the catching protrusion 51 is inserted into a fixing hole (not shown) provided in the main body 2 of the vacuum cleaner to allow the link member 40 to be coupled to the main body 2 side. .

In addition, the guide protrusions 45a and 45b formed on the body 42 may rotate the first and second extension pipes 22 and 30 about the guide protrusions 45a and 45b. The first and second extension pipes 22 and 30 are rotatable to the incisions 47a and 47b, respectively, but the rotation is limited to the opposite side, that is, the straight portions 48a and 48b. To have.

The folded extension tube 20 of the present invention configured as described above may be operated as shown in FIGS. 4 and 5.

The foldable extension tube 20 is formed in the state where the guide protrusions 45a and 45b are fitted to the guide grooves 26a, 26b, 36a and 36b of the first and second extension tubes 22 and 30, respectively. When the first and second extension pipes 22 and 30 are to be linearly coupled to perform the cleaning operation, the link member (1) may be provided on the upper end portion 27a of the guide grooves 26a and 26b of the first extension pipe 22. The guide protrusion 45a of 40 is moved so that the guide protrusion 45b may be located in the lower end part 37b side of the guide groove 36a of the 2nd extension pipe | tube 30, and then the 1st and 1st 2 If the extension pipes 22 and 30 are arranged in a straight line so as to maintain coaxiality, the link members 40 may have guide protrusions 45a and 45b to guide the first and second extension pipes 22 and 30, respectively. (26a) (26b) 36a (36b) are arranged in a straight line as shown in Fig. 4B) while rotating slightly in the state, in which the user fits the fitting 23 of the first extension tube 22. Second kite When inserted into the front end 32 of the intestinal tract 30, the guide protrusions 45a and 45b of the link member 40 are guide grooves 26a of the first and second extension pipes 22 and 30, respectively ( The first and second extension pipes 22 and 30 are firmly coupled to each other as shown in FIG. 4C in FIG. 4 by sliding within 26b) 36a and 36b.

In this state, the user performs the cleaning operation, and when the cleaning operation is completed, the first and second extension pipes 22 and 30 are folded and stored with each other. Pull the extension tubes 22 and 30 together to separate them from each other as shown in FIG. 4B) and then separate the first and second extension tubes 22 and 30 from each other as shown in FIG. 4A). In this state, the guide protrusion 45a of the link member 40 is positioned on the lower end portion 27b side of the guide groove 26a, 26b of the first extension tube 22, and the second extension tube ( The first and second extension pipes (as shown in FIG. 4D) so that the guide protrusions 45b of the link member 40 are positioned on the upper end 37a side of the guide grooves 36a and 36b of 30. If you move the 22) (30) will be folded operation. This shows that the first and second extension pipes 22 and 30 can be folded and linearly coupled in a state where they are connected to each other via the link member 40.

In addition, in order to couple the link member 40 to the main body 20 of the vacuum cleaner in the above state, as illustrated in FIG. 5, the a-type locking protrusion 51 of the link member 40 is connected to the main body 20. The guide protrusion 45a of the link member 40 is positioned at the lower end 27b of the guide groove 26a, 26b of the first extension pipe 22. When the second extension pipe 30 is moved to be located at the lower end portion 37b side of the guide grooves 36a and 36b, respectively, the first and second extension pipes 22 and 30 are parallel to each other while maintaining the link member ( According to 40, the main body 2 is mounted.

As described above, according to the folding type extension tube 20 of the vacuum cleaner according to the present invention, after completion of the cleaning operation, the first and second extension tubes 22 and 30 are connected to the main body through the link member 40. 2) it is not necessary to separate and store the first and second extension pipes 22 and 30 separately so that the risk of loss is prevented, and when combined with each other for cleaning, the first and second extension pipes 22 are used. (30) The connection between each other is made easily, the convenience of use is greatly improved.

Claims (9)

In the extension tube coupling structure of the vacuum cleaner, a fitting portion 23 having a reduced diameter is formed at one upper end thereof, and has a hollow body 25 structure, and concave guide recesses 26a and 26b are formed in both sides in the longitudinal direction. The first extension pipe 22 formed in the shape, the fitting portion 23 of the first extension pipe 22 is inserted into the front end portion 32 to form a hollow body 33 structure that can be coupled to the first extension pipe 220 And the guide grooves 26a and 26b of the second extension pipe 30 and the first and second extension pipes 22 and 30 each having a concave guide groove 36a and 36b formed in the longitudinal direction on both sides thereof ( Guide protrusions 45a and 45b which are inserted into the movable parts 36a and 36b are formed on the inner surface, and the first and second extension pipes 22 and 30 are connected to each other. Jin, characterized in that it comprises a link member 40 which is mounted to enable any one of the folding and straight coupling of the extension pipe (22) (30) Collapsible section of the vacuum cleaner tube. The upper and lower ends 27a and 27b of each of the guide grooves 26a and 26b of the first extension pipe 22 have upper and lower ends 28a of the hollow body 25, respectively. Foldable extension tube of the vacuum cleaner, characterized in that it is formed to reach a position close to the (28b). The folding extension tube of claim 1, wherein an inclined surface (23a) is formed at the tip of the fitting portion (23). The upper and lower ends 36a and 36b of each of the guide grooves 36a and 36b of the second extension pipe 30 are adjacent to the upper and lower ends of the hollow body 33. Foldable extension tube of the vacuum cleaner, characterized in that formed to reach the position. The vacuum extension collapsible tube according to claim 1, characterized in that the link member (40) has a hollow body (42) fitted to the outside of the first and second extension tubes (22) (30). . The upper and lower edges of the body 42 form cut portions 47a and 47b having a predetermined size, and the cut portions 47a and 47b are formed of first and second extension pipes, respectively. 22) (30) is a folding extension tube of the vacuum cleaner, characterized in that inserted. 6. The vacuum according to claim 5, wherein the upper and lower edges of the body 42 form straight portions 48a and 48b in which edges of the first and second extension pipes 22 and 30 contact each other. Folding tool tube of vacuum cleaner. The method of claim 5, wherein the outer edge of the lower edge of the body 42 is formed a locking projection 51 of the a-shape, the locking projection 51 is inserted into the fixing hole provided in the main body 2 of the vacuum cleaner Foldable extension tube of the vacuum cleaner, characterized in that the link member 40 is configured to be coupled to the main body (2) side. The guide protrusions 45a and 45b formed on the body 42 may rotate the first and second extension pipes 22 and 30 about the guide protrusions 45a and 45b. Foldable extension tube of the vacuum cleaner, characterized in that configured to.