KR19990064785A - A suction pipe length regulation device of vacuum cleaner - Google Patents

Abstract

The suction pipe length adjusting device of the vacuum cleaner according to the present invention includes an inner pipe 10 having a locking groove 12 and a guide groove 14, an outer pipe 60 coupled to the inner pipe 10, and a stopper ( A lever body 30 having a through hole 35 formed therein so as to be inserted 40, an elastic member 50 coupled to the lever body 30, and an image coupled to surround an outer circumferential surface of the lever body 30; It consists of a lower cover (70, 80) and the side cover (90) coupled to both ends of the upper and lower cover (70, 80), according to the present invention, the pressing portion 72 or the escape groove 74 ), The locking jaw 76 and the like are integrally formed with the upper cover 70, so that the assembly work of each part can be made easily, and the operation of the vacuum cleaner can be conveniently used by the one-touch type. Can be, the effect that can be easily made to adjust the length of the suction pipe 100 in multiple stages as desired Invention provided.

Description

Suction tube length adjusting device for vacuum cleaners {A SUCTION PIPE LENGTH REGULATION DEVICE OF VACUUM CLEANER}

The present invention relates to a suction tube length adjusting device of a vacuum cleaner, and in particular, by simply configuring a suction pipe length adjusting device used as a stopper to adjust the length of the suction pipe, thereby improving the assembly and operability of the suction pipe length adjusting device. It can be, and relates to a suction tube length adjusting device of the vacuum cleaner that can reduce the manufacturing cost.

In general, the suction tube of the vacuum cleaner is configured to be adjusted in length, and thus, various types of techniques for adjusting the suction tube length of the vacuum cleaner have been introduced, but the length adjusting device of the suction tube introduced in EP 0 552 481 A1 is as follows. It is composed as follows.

As shown in FIG. 1, the mounting portion 12-2 is fitted with an outer pipe 12 having a perforated expansion portion 12-1, and fitted into the outer pipe 12 and spaced apart from the outer circumferential surface thereof. It is held between the inner pipe 11 and the engaging groove 25 is formed, the expansion pipe 12-1 and the outer circumferential surface of the inner pipe 11, the through hole 24 is drilled in the center portion, the seating portion A guide body 15 having a 15-1, a coil spring 22 at which one end is fixed to both sides of a seating portion 15-1 of the guide body 15, and each of the coil springs 22 The other end is fixed and is moved in the longitudinal direction by receiving the elasticity of the coil spring 22, the pressing portion (17-1) is formed in the center of the bottom surface, the escape groove (17-2) on both sides of the pressing portion (17-1) And a slide 16 having a bottom portion coupled to the upper surface of the operating portion 17 by a fitting rod 17-3 to expose the upper portion of the installation portion 12-2. Shovel in through hole (24) It is consists of a roller 26, which is jammed or release the locking groove (25).

The suction pipe length adjusting device according to the related art configured as described above includes a slide 16 having a pressing part 17-1 which presses the roller 26 into the locking groove 25 so as to be caught by the suction pipe 10. When moved in the longitudinal direction of the, the force for pressing the roller 26 is removed while the through hole 24 and the escape groove 17-2 is matched so that the roller 26 of the operating hole 17 It is located in the escape groove 17-2.

In this state, when the user moves the inner pipe 11 in the longitudinal direction, the roller 26 is inserted into the escape groove 17-2 while being separated from the locking groove 25, and thus, the inner pipe. 11 is released, the length of the suction pipe 10 can be adjusted.

When the pushing force is removed from the slide 16 which has been moved in the longitudinal direction while the length of the suction pipe 10 is adjusted, the slide 16 is guided by the elasticity of each coil spring 22. ), And then the pressing part 17-1 of the actuating tool 17 presses the roller 26 again so that the roller 26 is a locking groove of the inner pipe 11. (25), and thus, the inner pipe 11 whose length is adjusted can be fixed. That is, the length adjustment state of the inner pipe 11 can be fixed.

However, the suction pipe length adjusting device according to the related art, which is constructed and operated as described above, has a problem in that the efficiency of the work of assembling each component is reduced due to the complicated structure.

That is, the process of coupling each of the coil springs 22 to the seating portion 15-1 and the actuating tool 17 was difficult, and the actuating tool 17 and the slide 16 are separated from each other, so that the actuating tool The operation of coupling the slide 16 to the 17 was required, and one end of the outer pipe 12 formed the expansion part 12-1 through expansion operation so that the guide body 15 could be inserted and installed. There was a problem that must be.

The present invention has been made in order to solve the problems of the prior art as described above, the technical problem of the present invention is to assemble the suction pipe length adjusting device to facilitate the assembly of the suction pipe length adjusting device of the vacuum cleaner to facilitate operation. And to make it easy to use.

1 is an enlarged partial cross-sectional view showing a suction pipe length adjusting device of a vacuum cleaner according to the prior art.

Figure 2 is an exploded perspective view showing a suction pipe length adjusting device of the vacuum cleaner according to the present invention.

Figure 3 is a perspective view showing a state in which the elastic member and the stopper coupled to the lever body of the suction pipe length adjusting device shown in FIG.

Figure 4 is a partially enlarged cross-sectional view showing a coupling state of the suction pipe length adjustment device shown in FIG.

5 is a partially enlarged cross-sectional view showing an operating state of the suction pipe length adjusting device shown in FIG. 2, 5a is a cross-sectional view showing a state before the length of the suction pipe is adjusted, 5b is a state in which the length of the suction pipe is adjusted. One section.

Explanation of symbols for main parts of the drawings

10: inner pipe 12: locking groove

14: invitation groove 20: packing

30: lever body 31: inner guide projection

32: jamming projection 33: guide groove

34: guide groove 35: through hole

36: operating groove 37: fitting groove

38: outer guide protrusion 40: stopper

50: elastic member 60: outer pipe

62: incision 64: jam hole

70: upper cover 72: pressing part

74: escape groove 76: jam jaw

78: locking piece 79, 89: locking protrusion

80: lower cover 82: moving field groove

84: locking end 90: side cover

92: coupling groove

2 to 4, the inner pipe is formed by the pressing portion 72 and the escape groove 74 integrally formed on the upper cover 70 with the stopper 40 installed on the lever body 30. By being caught or detached from the locking groove 12 of (10), there is a feature that can easily adjust the length of the suction tube of the vacuum cleaner.

Hereinafter, the configuration of the suction pipe length control device of the vacuum cleaner according to the present invention in detail. Hereinafter, reference numeral 100 denotes a suction pipe.

Inner pipe 10 according to the present invention is formed on the outer circumferential surface of the engaging groove 12 is maintained at a distance in the longitudinal direction, the guide groove 14 is formed in the longitudinal direction on the outer peripheral surface opposite the locking groove 12 do.

The lever body 30 fitted to the inner pipe 10 has an inner guide protrusion 31 seated on the inner circumferential surface of the lever main body 14 so as to be guided to the guide groove 14, and an inner circumferential surface around the guide protrusion 31. On both sides, the engaging projection 32 is protruded, the guide groove 33 is formed in the longitudinal direction on the outer circumferential surface of the inner guide projection 31, the guide jaw (on the inner peripheral surface of the portion where the guide groove 33 is formed) 34) is formed.

In addition, a through hole 35 is drilled in the center portion of the guide groove 33 so as to be perpendicular to the longitudinal direction, and operating grooves 36 are formed at both sides of the guide groove 33, and the guide groove 33 is formed. On both outer peripheral surfaces of the fitting grooves 37 are formed respectively.

The outer guide surface 38 in the longitudinal direction is formed on the outer circumferential surface of the lever body 30 in the opposite direction to the guide groove 33.

The stopper 40 is formed in a roller shape so as to be caught or separated from the locking groove 12 of the inner pipe 10 and inserted into the through hole 35.

The elastic member 50 is formed in a ring shape having one side opened, and both ends of the elastic member 50 are fitted into the fitting groove 37 of the lever body 30, and each center portion thereof is seated in each of the operating grooves 36. will be.

The outer pipe 60 is formed with a cutting hole 62 opened in a square shape so that the guide jaw 34 is inserted into the outer circumferential surface once, and the locking projections 32 are inserted and caught on both outer circumferential surfaces of the cutting hole 62. It is to be perforated to the rectangular engaging hole 64.

The upper cover 70 is formed in a semi-cylindrical shape, the pressing portion 72 is inserted into the guide groove 33 in the central portion of the inner peripheral surface to press the stopper 40 protruding in the longitudinal direction, the pressing portion 72 Each side of the) is formed with an escape groove 74 so that the stopper 40 escaped from the through hole 35, respectively, and the both sides of each escape groove 74 is seated in the operating groove 36 The locking jaw 76 is formed to protrude so that each elastic member 50 is caught.

The lower cover 80 is formed in a semi-cylindrical shape so as to be coupled to the upper cover 70, and a moving field groove 82 is formed at the center of the inner circumferential surface so that the outer guide protrusion 38 of the lever body 30 is seated.

On the other hand, the locking end 84 is formed on both sides of the inner circumferential surface of the lower cover 80, the locking piece 78 is fitted to the locking end 84 protrudingly formed on the front end of the upper cover 70, both ends On the outer circumferential surface, engaging protrusions 79 and 89 protrude.

The side cover 90 is coupled to both ends of the upper and lower covers 70 and 80 to cover the sides of the upper and lower covers 70 and 80 and at the same time the upper and lower covers 70 and 80. To be firmly coupled, coupling grooves 92 are formed on the respective inner circumferential surfaces to be fitted to the respective engaging protrusions 79 and 89.

Looking at the coupling relationship of each of these components are as follows.

First, the one side cover 90 formed in a ring shape in the outer diameter of the inner pipe 10, and the lever body 20 is inserted into the inner pipe 10, the guide of the lever body 10 The projection 31 is inserted into the guide groove 14 of the inner pipe 10 to be guided.

In this state, the airtight packing 20 is coupled to one end of the inner pipe 10, and the outer pipe 60 is inserted into the inner pipe 10 to cut the opening 62 of the outer pipe 60. Guide jaw 34 of the lever body 30 to be inserted into, and the engaging projection 32 of the lever body 30 is fitted into each of the engaging holes (64).

Thus, the lever body 30 is coupled to the inner pipe 10 and at the same time can be coupled to the outer pipe 60, the outer pipe 60 is length by the longitudinal operation of the lever body 30 It can be moved in the direction.

When the lever body 30 and the outer pipe 60 are coupled to the inner pipe 10, both ends of the elastic member 50 formed in a ring shape are fitted in the fitting grooves 37 of the lever body 30. The middle portion of each elastic member 50 is seated in the working groove 36 and fitted to the respective fitting portions formed on both outer peripheral surfaces of the lever body 30.

In this state, the stopper 40 formed in the roller shape is inserted into the through hole 35 of the lever body 30 so that the stopper 40 is inserted into the locking groove 12 of the inner pipe 10. At this time, it is preferable that the planes formed on both sides of the outer circumferential surface of the stopper 40 face the wall surface of the through hole 35.

While the stopper 40 is coupled to the through hole 35 of the lever body 30, the upper cover 70 is coupled to the lever body 30, and the upper cover 70 is the guide groove. (33) is combined to surround the outer peripheral surface portion formed.

At this time, the pressing portion 72 formed in the central portion of the inner circumferential surface of the upper cover 70 is positioned in the through hole 35, and the central portion of each elastic member 50 located in the operating groove 36 is the respective engaging Position the inside of the jaw 76.

In this state, the lower cover 80 is coupled to the upper cover 70 to cover the remaining portion of the lever body 30, but the outer guide projection protruding in the longitudinal direction on the outer peripheral surface of the lever body 30 After the 38 is inserted into the moving field groove 82 of the lower cover 80, the locking piece 78 of the upper cover 70 is attached to the locking ends 84 formed on both inner circumferential surfaces of the lower cover 80. Make sure that they fit together and join together.

At this time, the both ends of the upper cover 70 is formed with a fitting groove, the both ends of the lower cover 80 is formed with a fitting piece, so that the upper, lower cover 70 is easily and firmly coupled to each other.

When the upper and lower covers 70 and 80 are coupled to surround the lever body 30, each inner circumferential surface of the upper and lower covers 70 and 80 may be each elastic member from the fitting groove 37 or the fitting portion. In addition to preventing 50 from being separated, the upper and lower covers 70 and 80 coupled to each other are movable in the longitudinal direction by a predetermined distance, and the moved upper and lower covers 70 and 80 are Each elastic member 50 may be returned to its original position, that is, the pressing portion 72 to be positioned in the through hole 35.

In this state, one side cover 90 fitted to the inner pipe 10 is coupled to each one end of the upper and lower covers 70 and 80, and the engaging protrusions 79 and 89 are coupled to the groove 92. And the other side cover 90 is inserted into the outer pipe 60 and then coupled to the other ends of the upper and lower covers 70 and 80 as described above.

As a result, the suction pipe length adjusting device according to the present invention is to complete the mutual coupling as shown in FIG.

When described in detail based on the accompanying drawings the action of the suction pipe length adjusting device according to the present invention configured and coupled as follows.

As shown in Figure 5a, the state before the length of the suction pipe 100 is adjusted most of the stopper 40 inserted into the through hole 35 of the lever body 30 is caught by the inner pipe (10) It is inserted into the groove 12, and the pressing part 72 of the upper cover 70 presses the upper surface of the stopper 40. As shown in FIG.

In this state, as shown in Figure 5a to adjust the length of the suction pipe 100, the upper and lower cover 70, 80 coupled to each other in the direction of the arrow shown in Figure 5a, the upper, lower The lids 70 and 80 are smoothly moved in the direction of the arrow because the outer guide protrusion 38 of the lever body 30 is inserted into the moving field groove 82 of the lower cover 80.

At this time, the upper and lower cover (70, 80) is because the respective elastic member 50 is hung on each engaging jaw 76 formed on the inner peripheral surface of the upper cover 70, the respective elastic member 50 It will have elasticity to return to its original state.

When the upper and lower lids 70 and 80 are moved in the direction of the arrow shown in solid lines in FIG. 5B, one of the escape grooves 74 on each side of the escape grooves 74 formed on both sides of the pressing part 72 is provided. And the through hole 35 are coincided with each other, and in this state, when the outer pipe 60 or the inner pipe 10 is moved in the longitudinal direction, the stopper 40 in which the pressing is released is stopped by the locking groove 12. Is inserted into the escape groove (74).

As the stopper 40 is separated from the locking groove 12 of the inner pipe 10, the fixed state of the inner pipe 10 and the lever body 30 is released, and thus, the inner pipe 10 and The outer pipe 60 can be naturally moved in the longitudinal direction so that the length of the suction pipe 100 can be easily adjusted arbitrarily.

In order to maintain the length of the adjustable suction pipe 100 in the above-described process to remove the force to move the upper and lower cover (70, 80) in the direction of the arrow shown in solid line in Figure 5b. .

As such, when the force to move the upper and lower cover (70, 80) is removed, the upper and lower cover (70, 80) is in the original state, that is, in Figure 5b by the elastic force of each elastic member 50 The arrow shown by a dashed-dotted line is moved so that the pressing portion 72 is located in the through hole 35 of the lever body 30.

At this time, the escape groove 74 of the upper and lower covers 70 and 80, which are returned to their original state by the elastic member 50, the stopper 40 is inserted into the through hole 35 of the lever body 30. The stopper 40 inserted into the through hole 35 is inserted into the locking groove 12 corresponding to the through hole 35, and then the pressing part 72 is locked. The upper portion of the stopper 40 inserted into the groove 12 is pressed.

The upper and lower lids 70 and 80 are returned to their original states by the elastic members 50, and the stopper 40 is inserted into the locking groove 12, thereby providing the lever body 30 and the inner pipe 10. Is fixed, and thus, the outer pipe 60 fixed to the lever body 30 can also be firmly fixed to the inner pipe 10.

That is, by stopping the stopper 40 in the locking groove 12, the longitudinal movement of the inner and outer pipes 10, 60 is prevented, the length of the adjusted suction pipe 100 is fixed to the state It means that it can be maintained, the length of the suction pipe 100 is easily and freely adjusted by the lever body 30, the upper and lower cover (70, 80) and the stopper 40 and the elastic member 50 as described above It means you can be.

As such, if the user only pushes the upper and lower covers 70 and 80 in a desired direction in order to adjust the length of the suction pipe 100 at random, the stopper 40 is separated from the locking groove 12 and the inner pipe ( 10) is released, the length of the outer pipe 60 or the inner pipe 10 can be adjusted as desired, and when the upper and lower cover (70, 80) is placed in the adjusted length, the upper The lower cover (70, 80) by the elastic force of each of the elastic members 50 can be fixed to the adjusted length by engaging the stopper 40 to the locking groove 12, the suction pipe 100 The length of the can be easily adjusted by one-touch operation.

In the suction tube length adjusting device of the vacuum cleaner according to the present invention, the pressurizing portion or the escape groove catching jaw and the like are integrally formed with the upper cover, so that the assembly work of each part can be easily performed, and the operation is simple in one-touch manner. The use of the suction pipe can be convenient, and there is an advantage that the operation of adjusting the length of the suction pipe in multiple stages as desired can be easily performed.

Claims (4)

The locking groove 12 is formed by keeping a gap in the longitudinal direction on the outer circumferential surface, and the guide groove 14 is formed in the longitudinal direction on the outer circumferential surface of the locking groove 12, and the packing 20 is fitted at one end thereof. Inner pipe 10 to be coupled; An inner guide protrusion 31 is formed on one side of the inner circumferential surface to be guided by the guide groove 14. A guide groove 33 is formed in the longitudinal direction on the opposite outer circumferential surface of 31), and a guide jaw 34 is formed on the inner circumferential surface of the portion where the guide groove 33 is formed, and a length is formed at the center of the guide groove 33. The through hole 35 is drilled so as to be perpendicular to the direction, and operating grooves 36 are formed at both sides of the guide groove 33, and fitting grooves 37 are formed at both outer peripheral surfaces of the guide groove 33, respectively. A lever body 30 fitted to the outer circumferential surface of the inner pipe 10; A stopper 40 inserted into the through hole 35 so as to be caught or separated from the locking groove 12 of the inner pipe 10; An elastic member 50 in which both ends formed in a ring shape are fitted into the fitting groove 37, and each center portion of the ring member is movably seated in each of the operation grooves 36; An opening is formed in a square shape so that the guide jaw 34 is inserted into the outer circumferential surface once, and the locking projections 32 are inserted into the outer circumferential surfaces of both sides of the incision hole 62 so that the locking projections 32 are inserted. An outer pipe (60) which is punctured and fitted to the inner pipe (10) and fitted to an inner circumferential surface of the lever body (30); The pressing portion 72 is inserted into the guide groove 33 in the central portion of the inner circumferential surface formed in a semi-cylindrical shape and protrudes in the longitudinal direction, and the through holes are formed at both sides of the pressing portion 72. Each of the escape grooves 74 is formed so that the stopper 40 escaped from the 35 is escaped, and each elastic member 50 seated in the operation groove 36 is caught on both sides of the escape grooves 74. An upper cover (70) surrounding the portion of the lever body (30) to protrude so that the locking step (76) is formed to move the lever body (30) in the longitudinal direction; A lower cover 80 coupled with the upper cover 70 to cover an outer circumferential surface of the lever body 30; A side cover 90 formed to cover an outer circumferential surface of the lever body 30 and coupled to both ends of the upper cover 70 and the lower cover 80 which are coupled to each other; Suction tube length adjusting device of the vacuum cleaner, characterized in that consisting of. According to claim 1, wherein the outer circumferential surface of the lever body 30, the guide groove 33 in the opposite direction is formed with an outer guide projection 38 in the longitudinal direction, the inner circumferential surface of the lower cover 80, the outer guide projection ( 38 is formed to move the groove 82 is formed to guide the upper and lower cover (70, 80) coupled to each other to surround the lever body 30 to move in the longitudinal direction of the vacuum cleaner Suction tube length adjusting device. According to claim 1 or 2, wherein the upper cover (70) and the lower cover (80) is at the distal end of the upper cover (70) formed on both sides of the inner circumferential surface of the lower cover (80), Suction tube length adjusting device of the vacuum cleaner, characterized in that the protruding engaging piece 78 is fitted to each other. According to claim 1, wherein each side cover 90 is coupled to each of the inner circumferential surface 92 to be engaged with the engaging projections (79,89) protruding to the outer peripheral surface of both ends of the upper, lower cover (70, 80) Suction tube length adjusting device of the vacuum cleaner, characterized in that formed.