KR20030020019A - Telescopic pipe connecting structure of vacuum cleaner - Google Patents

Abstract

PURPOSE: A connecting structure of an extension pipe of a vacuum cleaner is provided to separate extension pipes easily by pressurizing a push member. CONSTITUTION: A connecting structure of an extension pipe of a vacuum cleaner includes a fixing protrusion(11); a fixing hole(31); a guide member(32) and a push member(33). A fixing protrusion is formed to an outer peripheral surface of a first extension pipe(20). The fixing hole is formed to an outer peripheral surface of a second extension pipe(30) to correspond to the fixing protrusion. The guide member is protruded from the outer peripheral surface of the second extension pipe. The guide member is around the fixing hole. The push member pressurizes the fixing protrusion. The push member is installed to the guide member to move up and down. A coiled spring(34) is installed between the guide member and the push member. The spring is biased not to contact the fixing protrusion with the push member. A contacting surface of the push member with the fixing member is slanted. Therein, first and second extension pipes are separated by pressurizing the push member without pressurizing the fixing protrusion.

Description

Telescopic pipe connecting structure of vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly, to an extension pipe connection structure for coupling / separating a plurality of extension pipes.

In general, the extension tube of the vacuum cleaner has a configuration in which a plurality of combinations / separations are provided so that the user can easily reduce the storage volume of the vacuum cleaner, and a connection structure using a ring connector that is easy to assemble for the connection of the extension tubes. Is widely used.

As shown in FIG. 1, the conventional extension pipe connection structure includes a snap ring-shaped ring connector 2 having a fixing protrusion 1 formed at the center of an outer surface thereof, and an insertion hole 3 formed at a position corresponding to the fixing protrusion 1. And a first extension pipe (4) into which the link connector (2) is inserted and fixed, and a fixing hole (5) formed at a position corresponding to the fixing protrusion (1) and the insertion hole (3). It consists of the 2nd extension pipe | tube 6 formed so that it may have a diameter larger than the diameter of (4), and the 1st extension pipe | tube 4 is inserted and fixed.

The link connector 2 is formed of a material capable of elastic deformation. When the ring connector 2 is inserted into the first extension pipe 4, the fixing protrusion 1 penetrates the insertion hole 3 and protrudes from the outer circumferential surface of the first extension pipe 4. In this state, when the first extension pipe 4 is inserted into the second extension pipe 6, the fixing protrusion 1 is locked to the fixing hole 5 so that the first extension pipe 4 and the second extension pipe 6 are fixed. ) Are combined.

On the other hand, when the user presses the fixing protrusion 1 with one hand while the first extension tube 4 and the second extension tube 6 are coupled, the ring connector 2 is deformed, so that the fixing protrusion 1 is second. The extension is pushed into the inner tube 6 to release the locking. In this state, when the user pulls the first extension tube 4 with the other hand, the first extension tube 4 is separated from the second extension tube 6.

According to the conventional extension tube connection structure as described above, since the user must use both hands when the first extension tube 4 and the second extension tube 6 are separated, there is a disadvantage in that it is inconvenient. In particular, in the case of extension pipes connected close to the suction brush, the user has to work with both hands while bending the waist to separate them, which is very inconvenient.

The present invention has been made to solve the problems of the conventional extension tube connection structure as described above, and an object thereof is to provide an extension tube connection structure that can be easily separated from a plurality of extension tubes.

1 is an exploded perspective view showing a conventional extension pipe connection structure.

Figure 2 is an exploded perspective view showing an extension pipe connection structure according to the present invention.

3 is a cross-sectional view of the assembled state of FIG.

4 is a partial perspective view of the vacuum cleaner to which the extension tube connection structure of FIG. 3 is applied.

<Description of Symbols for Major Parts of Drawings>

10: link connector 11: fixed protrusion

20: first extension tube 21: insertion hole

30: second extension pipe 31: fixing hole

32: guide member 33: pressing member

33a: slope 34: spring

An object of the present invention as described above, the first extension tube, the second extension tube is inserted into the first extension tube therein, a fixing projection and elastically installed on the outer periphery of the first extension tube, and the fixing projections A fixing hole formed at an outer circumference of the second extension tube at a corresponding position, a guide member protruding from an outer circumferential surface of the second extension tube so as to surround the circumference of the fixing hole, and being provided to be elevated on the guide member to selectively lift the fixing protrusion It is achieved by providing an extension tube connection structure comprising a pressing member for contact pressing.

Here, one side of the guide member is provided with a spring for biasing the pressing member in a direction that does not contact with the fixing protrusion, the contact surface of the pressing member with the fixing protrusion is preferably formed to be inclined at a predetermined angle.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

As shown in FIG. 2, the extension pipe connection structure according to the present invention includes a snap ring-shaped ring connector 10 having a fixing protrusion 11 formed at the center of an outer surface thereof, and an insertion hole formed at a position corresponding to the fixing protrusion 11. And a first extension tube 20 into which the link connector 10 is inserted and fixed, and a diameter larger than the diameter of the first extension tube 20, the first extension tube 20 being inserted and fixed. The second extension pipe 30 is included.

One side of the second extension pipe 30 is formed with a fixing hole 31 in communication with the insertion hole (21). When the first extension tube 20 is inserted into the second extension tube 30 while the link connector 10 is inserted into the first extension tube 20, the fixing protrusion 11 is locked to the fixing hole 31. By locking, the first extension pipe 20 and the second extension pipe 30 are coupled to each other. That is, when the first extension tube 20 and the second extension tube 30 are coupled, the fixing protrusion 11 penetrates the insertion hole 21 and the fixing hole 31 to protrude from the outer circumferential surface of the second extension tube 30. . On the other hand, the ring connector 10 is formed of a material that can be elastically deformed so that the fixing projection 11 can be elastically mounted through the insertion hole 21 and the fixing hole 31.

On the outer circumferential surface of the second extension pipe 30, the guide member 32 is formed to protrude from the fixing hole 31. The guide member 32 is formed in a box shape with an open upper end, and a pressing member 33 is installed therein so as to be liftable.

As shown in FIG. 3, the pressing member 33 is selectively in contact with the fixing protrusion 11 while lifting up in a direction perpendicular to the direction in which the fixing protrusion 11 is lifted in the guide member 32. An inclined surface 33a is formed at the tip of the pressing member 33. Since the inclined surface 33a comes into contact with the fixing protrusion 11 while the pressing member 33 moves up and down, the appearance of the fixing protrusion 11 can be smoothly performed.

Meanwhile, a coil spring 34 is installed between the guide member 32 and the pressing member 33. The coil spring 34 biases the pressing member 33 in a direction of rising, that is, in a direction in which contact with the fixing protrusion 11 is released.

As shown in FIG. 3, when the user presses the pressing member 33 while the first extension tube 20 and the second extension tube 30 are coupled to each other, the pressing member 33 is lowered while the coil spring 34 is compressed. do. The fixing protrusion 11 is pressed by the contact with the inclined surface 33a to be pushed in the inner direction of the first extension pipe 20 to release the locking. When the user pulls the first extension tube 20 in this state, the first extension tube 20 is separated from the second extension tube 30.

4 illustrates a case in which the extension pipe connection structure according to the present embodiment is applied to connect the connection pipes close to the brush where the dirt is sucked from the surface to be cleaned. As shown in FIG. 4, when the second extension pipe 30 is coupled to the neck portion 40 of the brush 100, the first extension pipe 20 is in a state where the user steps on the pressing member 33. Pulling out, the first extension pipe 20 and the second extension pipe 30 can be easily separated.

As described above, according to the present invention, since the user can press the pressing member 33 without directly pressing the fixing protrusion 11 to separate the first extension pipe 20 and the second extension pipe 30, There is an advantage that the separation of the extension pipe (20, 30) is easy.

In particular, in the case of separating the extension pipes connected close to the suction brush 100, the user pulls the first extension pipe 20 with one hand while pressing on the pressing member 33 with the foot to separate from the second extension pipe 30. can do. Therefore, according to the present invention, there is no need to bend the waist as in the prior art, and there is an advantage that the operation can be performed with only one hand.

In the above, certain preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. will be.

Claims (3)

In the extension tube connection structure of the vacuum cleaner comprising a first extension tube and a second extension tube inserted into the first extension tube therein, A fixing protrusion installed elastically on the outer circumference of the first extension pipe; A fixing hole formed at an outer circumference of the second extension pipe at a position corresponding to the fixing protrusion; A guide member protruding from an outer circumferential surface of the second extension tube so as to surround the fixing hole; And An extension pipe connection structure of the vacuum cleaner installed on the guide member so as to be liftable and including a pressing member for selectively contacting and pressing the fixing protrusion. The method of claim 1, And a spring installed on one side of the guide member and biasing the pressing member in a direction not in contact with the fixing protrusion. The method according to claim 1 or 2, The connection surface of the vacuum cleaner, characterized in that the contact surface of the pressing member and the fixing projection is inclined at a predetermined angle.