CN1150852C - Length adjustment device of suction extension pipe for vacuum cleaner - Google Patents
Length adjustment device of suction extension pipe for vacuum cleanerInfo
- Publication number
- CN1150852C CN1150852C CNB008114331A CN00811433A CN1150852C CN 1150852 C CN1150852 C CN 1150852C CN B008114331 A CNB008114331 A CN B008114331A CN 00811433 A CN00811433 A CN 00811433A CN 1150852 C CN1150852 C CN 1150852C
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- China
- Prior art keywords
- block
- pipe
- spring
- length
- guide pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
- A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
The present invention relates to a length adjustment device of a suction extension pipe for a vacuum cleaner capable of adjusting, when the inner and outer pipes constituting the suction extension pipe are extended by a telescopic operation to a desired length, the suction extension pipe to the desired length in a fast and safe manner, in a sliding stopper operating manner, with a consequence that the adjusted state can be stably kept against external impacts and the length adjustment of the suction extension pipe can be achieved only with one hand of a user on a grip. The device is characterized in that upon the operation of a guide pipe (7) and a grip as an outer body of the length adjustment device in a length direction thereof, the guide pipe (7) and the grip are biased by means of an elastic force of a spring, a cover forming the grip is provided at the top end of the interior thereof with a stopper controller (6) for sliding-conveying a stopper (15) and at the bottom end of the interior thereof with a spring operator (9) for an elasticity bias operation of the spring (11), the stopper (15) fitted on a stopper coupling groove (14) formed in a circumferential length direction to pass through the guide pipe (7) on the top end portion of the guide pipe (7) and controlled under the stopper controller (6) formed on the top end of the interior of the cover, each of the locking grooves (2) is coupled to be closely contacted on the bottom end of the stopper, whereby the stopper (15) carries out an opening/closing movement in the stopper coupling groove (14) relative to the movement of a grip in forward and backward length directions, thereby carrying out the desired length adjustment of the inner pipe (4).
Description
Technical field
The present invention relates to a kind of length adjuster that is used for the suction extension pipe of vacuum cleaner, especially the length adjuster that relates to a kind of suction extension pipe that is used for vacuum cleaner with the sliding block manner of execution that can regulate, when the interior pipe that constitutes suction extension pipe and outer tube by a flexible operation extend to one need length the time, suction extension pipe is elongated to the length that needs in a kind of mode fast and safely, the result only uses the user's who is held on the clamping device a hand, just can obtain the length adjustment of suction extension pipe, and can revolt the state that outside impact also stably remains on adjustment.
Background technology
In the general structure of the length adjuster of the suction extension pipe that is used for vacuum cleaner of tradition development, a block that is contained in the guide pipe that connects inner and outer pipes is lockable with respect to forming a series of locking slots on inner pipe or throws off.According to above-mentioned structure, be used to pin or the various building methods of throwing off block in U.S. Pat 5,941, be disclosed in 575,5,692,782 and 5,332,266.
Specifically, appearance from the block controller, in Deutsche Bundespatent No.197 35 273 A1 and 197 38 194C1, disclose the operated block controller of a kind of clamping device, in European patent No.0 552 481 A1 and Deutsche Bundespatent No.4101049 A1, disclose a kind of push-botton operation formula block controller.
Yet in above-mentioned various conventional methods, even on the locked locking slot that forms on inner pipe of block or from locking slot, throw off, also need basically the block impeller is applied an external force so that the block that connects inner and outer pipes to be installed, and like this, block is directed to the release areas that forms at its top, thereby, realize the above-mentioned connection of block or take motion apart by extracting or insert operation mutually between interior pipe and the outer tube.Like this, block slides or moves along the central axis that is formed on the locking slot in the interior pipe.
In other words, the locking slot that traditional block discharges and method of attachment forms on inner pipe and the shape of block have a lot of restrictions.In detail, what block was dismantled when extending adjustment for length carries out easily, and each locking slot must have a big interior insertion angle.Connect in a kind of mode fast, stably in order to be locked in the locking slot at block, must there be a sweep each locking slot and the block coupling part that is attached thereto, like this, the mutual interfering movement between locking slot and block is lowered to minimum when the length of pipe is extended action.
Yet according to above-mentioned operating principle, some structural problems can take place still during carrying out length adjustment, the friction between block and the locking slot take place in fact, thereby cause reducing of generating noise and pressure.
In detail, in the length adjuster of traditional extension, under the blocked state of block, even the block controller is applied a slight impact, also can easily break away from the connection power (below be called pressure) of pipe, thereby the length that causes adjusting is not changed with needing.In addition, because long use repeatedly can cause the wearing and tearing of block and locking slot, pressure is weakened, so that loses the function of use of block and locking slot.Also have, the structural friction between locking slot and block can cause generating noise, thereby destroys the compatibility of product.
In order to solve the problem that above-mentioned pressure reduces and produce noise, another kind of one type of prior art syringe is disclosed in Deutsche Bundespatent No.197 06210 and U.S. Patent No. 5,692,782, according to this device, block is locked in a plurality of grooves simultaneously.Opposite with the direction that is applied on the extension of an external force in addition, stably form the shape of each groove, block is thrown off from locking slot smoothly when discharging.Yet these prior aries are brought some problems, i.e. the above-mentioned restriction in block dismounting mode that is subjected to according to traditional operation principle block is still without any solution.
Summary of the invention
The present invention avoids the deficiency of above-mentioned length adjuster as possible.
Therefore, an object of the present invention is to provide a kind of length adjuster that is used for the suction extension pipe of vacuum cleaner, it can be with the method for exercise group dress or separating block up and down, this method extensively is used in the block controller of traditional telescopic suction extension pipe, change over a kind of length direction and move the new method of the block that is positioned at the release areas on the two ends, thereby the pressure that locks onto the suction extension pipe on the block can be added to its degree completely along the block locking slot.
Another object of the present invention provides a kind of length adjuster that is used for the suction extension pipe of vacuum cleaner, in order to discharge block, when operation that the length of carrying out suction extension pipe is extended, can be applied directly on the block affacting the power of adjusting on the clamping device, thereby pass to the block on the release areas apace, simultaneously, flexible operation corresponding to suction extension pipe, apply continuous action vertically in the power of adjusting on the clamping device, thereby just can realize the extension operation of pipe in the mode of quick and smooth with being held in a hand adjusting the user on the clamping device.
Another object of the present invention provides a kind of length adjuster that is used for the suction extension pipe of vacuum cleaner, can when operating, length adjustment make the locking slot of pipe in each and the friction between the block be reduced to its minimum of a value, thereby, use the block and the wearing and tearing between the locking slot that cause to be dropped to minimum repeatedly owing to long-time because the noise that friction causes can be significantly reduced.
Description of drawings
Below with reference to the accompanying drawings, by the several preferred embodiments of example description, wherein according to length adjuster of the present invention:
Fig. 1 .1 is a decomposition diagram, shows the structure of the length adjuster of the suction extension pipe that is used for vacuum cleaner according to a preferred embodiment of the present invention;
Fig. 1 .2 is the profile of the assembled state of the device among Fig. 1 .1;
Fig. 1 .3 is a profile, shows the state that length adjustment stops in the length adjuster in Fig. 1 .1;
Fig. 1 .3a is the profile along the A-A line among Fig. 1 .3;
Fig. 1 .3b is the profile along the A ' among Fig. 1 .3a-A ' line;
Fig. 1 .4 is a profile, shows the state that length is shortened in the length adjuster in Fig. 1 .1;
Fig. 1 .4a is the profile along the B-B line among Fig. 1 .4;
Fig. 1 .4b is the profile along the B ' among Fig. 1 .4a-B ' line;
Fig. 1 .5 is a profile, shows the state that length is extended in the length adjuster in Fig. 1 .1;
Fig. 1 .5a is the profile along the C-C line among Fig. 1 .5;
Fig. 1 .5b is the profile along the C ' among Fig. 1 .5a-C ' line;
Fig. 2 .1 is a decomposition diagram, shows the structure of the suction extension pipe length adjuster that is used for vacuum cleaner according to another preferred embodiment of the invention;
Fig. 2 .2 is the profile of the assembled state of the device among Fig. 2 .1;
Fig. 2 .3 is a profile, shows the state that length adjustment stops in the length adjuster in Fig. 2 .1;
Fig. 2 .3a is the profile along the A-A line among Fig. 2 .3;
Fig. 2 .4 is a profile, shows the state that length is shortened in the length adjuster in Fig. 2 .1;
Fig. 2 .4a is the profile along the B-B line among Fig. 2 .4;
Fig. 2 .5 is a profile, shows the state that length is extended in the length adjuster in Fig. 2 .1;
Fig. 2 .5a is the profile along the C-C line among Fig. 2 .5;
Fig. 3 .1 is a decomposition diagram, shows the structure according to the suction extension pipe length adjuster that is used for vacuum cleaner of the 3rd preferred embodiment of the present invention;
Fig. 3 .2 is the profile of the assembled state of the device among Fig. 3 .1;
Fig. 3 .3 is a profile, shows the state that length adjustment stops in the length adjuster in Fig. 3 .1;
Fig. 3 .3a is the profile along the A-A line among Fig. 3 .3;
Fig. 3 .4 is a profile, shows the state that length is shortened in the length adjuster in Fig. 3 .1;
Fig. 3 .4a is the profile along the B-B line among Fig. 3 .4;
Fig. 3 .5 is a profile, shows the state that length is extended in the length adjuster in Fig. 3 .1;
Fig. 3 .5a is the profile along the C-C line among Fig. 3 .5;
Fig. 4 is a perspective view, shows according to another of the interior pipe of length adjuster of the present invention
Embodiment.
The specific embodiment
In order to realize these purposes of the present invention and other purposes, a kind of length adjuster that is used for the suction extension pipe of vacuum cleaner is provided, it comprises: pipe in, and it has a plurality of recessed gathering sills that are provided at predetermined intervals locking slot at an upper portion thereof and are arranged on its underpart along its length direction; A guide pipe, circumferential surface is provided with a guide protrusions within it, so that interior pipe is slidingly matched, also be provided with a counterpart that cooperates with a matching slot on the outer tube, thereby obtain a length adjustment operation that needs, it is characterized in that: at guide pipe with as the clamping device of an outer body of length adjuster during along the action of its length direction, guide pipe and clamping device depart from by the elastic force of a spring, one lid that forms clamping device is provided with a block controller in the top of portion within it, conveying one block is used for sliding, the bottom of portion is provided with a spring-operated device within it, the elasticity that is used for spring departs from operation, block is installed in along on the block mating groove of circumferential length direction formation, on the head portion of guide pipe, pass guide pipe, be formed on the block controller control on the top of this lid inside, each locking slot cooperates with block and closely contacts with the bottom of block, thereby with respect to clamping device moving along the front and back length direction, block is created in the opening/closing motion in the block mating groove, thus the length adjustment of the interior pipe that realization needs.
First preferred embodiment:
1.1-1.5b discusses the structure and the operation of length adjuster according to a first advantageous embodiment of the invention in detail at first with reference to the accompanying drawings.
Fig. 1 .1 is a decomposition diagram, show the structure of the suction extension pipe length adjuster that is used for vacuum cleaner according to a preferred embodiment of the present invention, Fig. 1 .2 is the profile of the assembled state of the device among Fig. 1 .1, Fig. 1 .3a-1.5b is a profile, shows the mode of operation according to the length adjuster of of the present invention preferred embodiment.
Shown in Fig. 1 .1, the length adjuster 1 of the suction extension pipe that is used for vacuum cleaner according to a preferred embodiment of the invention comprises: pipe 4 in has a plurality of gathering sills 3 that are provided at predetermined intervals recessed locking slot 2 at an upper portion thereof and are arranged on its underpart along its length direction; A guide pipe 7, circumferential surface is provided with a pipe guide protrusions 5a within it so that be slidingly matched with interior pipe 4, also be provided with one with outer tube 8 on the counterpart 16a of matching slot 16 secure fit.
One lid guide rail 5b is set on guide pipe 7 external peripheral surface at an upper portion thereof along its length, at its circumferencial direction one block mating groove 14 is set, on the external peripheral surface of its underpart, insert protruding 10a with respect to a spring and be symmetrical arranged a pair of spring fixed lobe 10b.
On the inner surface of the top lid 13 that the upper outer circumferential surface with guide pipe 7 cooperates, a block controller 6 is set, it comprises: a block reset protruding 6b, a block release projection 6a and a block impeller 6c.On the other hand, on the inner surface of the lower end lid 1 that cooperates with the bottom external peripheral surface of guide pipe 7, a spring-operated device 9 is set, it comprises: a spring lock projection 9a and a guide pipe gathering sill 9b.
A pair of block 15, be arranged in the block mating groove 14, the action of execution opening/closing, the block controller 6 that is set on the inner surface of top lid 13 is controlled, an and ring spring 11, occupy spring and insert between protruding 10a and a pair of spring fixed lobe 10b, it is connected with spring-operated device 9 on the lower end lid 12.
Block to 15 with the coupling part of block controller 6 on tilt at a predetermined angle so that realize the guided slidable motion, and have the shape of a symmetry that satisfies symmetrical structure of the present invention.
In other words, block is inserted in the block mating groove 14 that along the circumferential direction is formed on the guide pipe 7 15, and then, the surface is provided with the loam cake 13 of block controller 6 and the top of guide pipe 7 is assembled together within it.On the other hand, ring spring 11 is installed in spring and inserts on the projection 10, flexibly is placed on the spring lock projection then between 9.Under above-mentioned state, the surface is provided with the lower cover of spring-operated device 9 and the bottom of guide pipe 7 is assembled together within it, and guide pipe 7 is departed from by the elastic force of spring.Afterwards, the clamping device G as an outer body of length adjuster forms by an enclosing cover 18 and an inner cap 17.
This outer body is made of enclosing cover 18, inner cap 17, loam cake 13 and lower cover 12, within it portion be provided with block to 15, spring 11 and guide pipe 7, it has the function as the length adjustment clamping device G of suction extension pipe, the mutual length in being used for adjusting between pipe 4 and the outer tube 8.
On the other hand, the inner surface of block controller 6 and spring-operated device 9 and each lid is integrally formed, forms but also can be used as the independent component that separates with each lid.
In order to understand first preferred embodiment of the present invention more accurately, describe the operating principle and the state of length adjuster of the present invention below in detail.
As previously mentioned, guide pipe 7 at an upper portion thereof external peripheral surface along its length is provided with lid guide rail 5b, the position is provided with block mating groove 14 along the circumferencial direction vertical with lid guide rail 5b therebetween, and this groove 14 passes lid guide rail 5b with suitable distance and length.If when carrying out the length adjustment operation, clamping device G is moved along fore-and-aft direction is linear by an operator, the block that inserts in the block mating groove 14 is released 15, and the block release projection 6a by block controller 6 separates, the block 15 of Fen Liing slides into the end portion of lock projection 2 along the lock projection 2 of interior pipe 4 then, thereby finishes the separation and the release of block 15 in the above.
In detail, interior pipe 4 is provided with a plurality of locking slots 2, and block is inserted in each locking slot on its circumferential surface.These a plurality of locking slots 2 are made of a series of indents, separate with predetermined space on the external peripheral surface of pipe in this annular, because each in a plurality of locking slot 2 is gradually away from its center, it is designed to reduce symmetrically on the degree of depth.Therefore, the locking slot on its two ends 2 as locking slot without any effect.
Yet in traditional structure, this block is by the formation of portion's release areas on inner pipe, crosses on the top of each locking slot of interior pipe.And structure according to a first advantageous embodiment of the invention, if an external force is applied directly to block to last, block is to sliding on locking slot 2, thereby is placed on the release areas at locking slot two ends.
After pipe reaches predetermined extension position, the spring pressure that acts on the clamping device G is become a restoring force, be used for apace it being pushed back poised state, like this along being formed on block on the loam cake 13 protruding 6b that resets, restoring force is applied on the block 15 that is positioned at locking slot 2 two ends, so that block moves to the center of locking slot 2 to 15, thereby realize the assembly manipulation of block.Rely on the effect of restoring force, by a block impeller 9c, block 15 will return along the locking slot 2 of interior pipe 4.
Produce spring pressure and the element that affacts the elastic force of the clamping device G on the block 15 as being used for, on guide pipe 7, provide spring and insert protruding 10a and spring lock projection 9, ring spring 11 is housed in the above; And be formed on spring-operated device 9 on the inner surface of lower cover 12.1.3b discusses the ring spring 11 of installation and the operating principle that the spring in spring-operated device 9 inserts protruding 9a and guide pipe gathering sill 9b in detail to 1.5b below with reference to the accompanying drawings.
Fig. 1 .3b shows the poised state of ring spring 11, can not produce compression stress and elastic-restoring force by ring spring 11 at this on clamping device G.In other words, ring spring 11 has the angle of equilibrium with respect to spring lock projection 9, as shown in Fig. 1 .3a, in the ON/OFF block is assembled in each other to 15 pipe 4 locking slot 2 in the heart, the connection status of pipe 4 and outer tube 8 in this also just means.
Fig. 1 .4b and 1.5b show the state that departs from of ring spring 11, by be contained on the clamping device G ring spring 11 alongst according to the proportionate relationship of the relative position of clamping device and guide pipe 7, produce compression stress and elastic-restoring force.In other words, ring spring 11 deviates from a left side or right spring inserts protruding 10b, is locked in afterwards on a left side or the right spring lock projection 9a, and spring is exerted pressure along a left side or right length direction as a result.This means on each opposite direction and apply elastic-restoring force with same intensity.In other words, as shown in Fig. 1 .4a, the block release projection 6a of block controller 6 is in action between the supercentral block of locking slot 2 is to 15, thereby moves at locking slot 2 two ends just the block in release areas.To 15 after release areas is moved, the pressure of spring 11 is applied to the length direction of pipe continuously at block, thereby realizes the operation of length adjustment.
After finishing the length adjustment that needs, block resets to the elastic-restoring force of the spring by being contained in clamping device G inside, and for example it is locked in the corresponding locking slot.This can reset by the block with immediate mode operation block controller protruding 6b and block impeller 6c obtain.In other words, after finishing the length adjustment that needs, if the external force that is applied on the clamping device G is removed, the elastic-restoring force of spring will be formed on the middle position that block controller 6 on the loam cake 13 back into initial poised state, and owing to returning of block controller 6, form the action of outstanding wall part, the home position when the block of release areas is directed and turns back to its block assembled state by block the tilting of protruding 6b that reset.Simultaneously, by being formed on the block impeller 6c in the block controller 6, block to 15 by quick lock in locking slot 2, move to the central part of locking slot afterwards along the direction of its groove, block 15 is by in the locking slot 2 of pipe 4 in firmly being locked in as a result.
Second preferred embodiment:
Now, 2.1-2.5b discusses the structure and the operation of length adjuster according to a second, preferred embodiment of the present invention in detail with reference to the accompanying drawings.
Fig. 2 .1 is a decomposition diagram, show the structure of the suction extension pipe length adjuster that is used for vacuum cleaner according to a second, preferred embodiment of the present invention, Fig. 2 .2 is the profile of the assembled state of the device among Fig. 2 .1, Fig. 2 .3 is a profile to Fig. 2 .5a, shows mode of operation according to a second, preferred embodiment of the present invention.
Shown in Fig. 2 .1, the length adjuster 1 that is used for the suction extension pipe of vacuum cleaner according to a second, preferred embodiment of the present invention comprises: pipe 4 in has a plurality of gathering sills 3 that are provided at predetermined intervals recessed locking slot 2 at an upper portion thereof and are arranged on its underpart along its length direction; A guide pipe 7, circumferential surface is provided with a pipe guide rail 5 within it, is slidingly matched by it and interior pipe 4, also be provided with one with outer tube 8 on the counterpart 16a of a matching slot 16 secure fit.Guide pipe 7 along the circumferential direction is provided with a block mating groove 14 at its excircle upper surface, is provided with a projection 212 at its excircle lower surface vertically.One block 15 is arranged on and is used in the block mating groove 14 of guide stopper, and then, a slide protrusion 15a is connected with engagement system with a slide 26.Slide 26 surface within it is provided with oblique sliding recess 29, and the slide protrusion 15a of upper surface that is formed on block 15 is with the mode of sliding this groove of packing into.On the other hand, on the lower surface of guide pipe 7, a helical spring 11 is resiliently mounted on the front and rear of projection 12, and the result is owing to the elastic force of helical spring 11, and guide pipe 7 is biased, and afterwards, forms outer body by enclosing cover 18, inner cap 17 and a lid 210.
In other words, clamping device G as outer body is made up of enclosing cover 18, inner cap 17 and lid 210, the element that slide 26, block 15, spring 11 and guide pipe 7 with the relation assembling that is engaged with each other constitute is equipped with in portion within it, like this, clamping device G plays the interior pipe 4 of regulating the length adjuster be used for suction extension pipe and the effect of the mutual length between the outer tube 8.
The block 15 of the preferred embodiments of the present invention has polyhedron-shaped and forms slide protrusion 15a, and this projection is used for realizing at its top sliding motion, is formed on the sloping portion on the inclined-plane 15b along short transverse at its two ends.The slide protrusion 15a of block 15 closely inserts in the sliding tray 9 that is formed on the slide 26, thereby causes sliding motion.The main body of block 15 is touched on the locking slot 2 that is connected to interior pipe 4, thereby is directed and slip on locking slot 2.When the direction of motion of clamping device G is seen, form sliding tray 29 according to incline direction, thereby, reciprocal rectilinear motion can be converted to the motion of perpendicular circumferencial direction when operating external force when being applied to clamping device G.Thereby use the converting motion of block 15.
In other words, according to second preferred embodiment of the present invention, block 15 by along be applied to clamping device G at first on the vertical direction of the direction of power discharge.After block 15 arrived release areas, continuous action was applied on the outer tube 8 in the power on the clamping device G, thereby realized the telescopic length extension of suction extension pipe with a kind of mechanical structure.
The 3rd preferred embodiment:
Next, 3.1-3.5a discusses structure and operation according to the length adjuster of the 3rd preferred embodiment of the present invention in detail with reference to the accompanying drawings.
Fig. 3 .1 is a decomposition diagram, show structure according to the suction extension pipe length adjuster that is used for vacuum cleaner of the 3rd preferred embodiment of the present invention, Fig. 3 .2 is the profile of the assembled state of the device among Fig. 3 .1, Fig. 3 .3 is a profile to Fig. 3 .5a, shows the mode of operation according to the 3rd preferred embodiment of the present invention.
Shown in Fig. 3 .1, length adjuster 1 according to the suction extension pipe that is used for vacuum cleaner of the 3rd preferred embodiment of the present invention comprises: pipe 4 in, it have a plurality of with predetermined space be spaced apart at an upper portion thereof recessed locking slot 2 and be arranged on the gathering sill 3 of its underpart along its length direction; A guide pipe 7, circumferential surface is provided with a pipe guide rail 5 within it, is slidingly matched by it and interior pipe 4, also has an outstanding guide rail 36 that is provided with along the direction with its axis inclination on its external peripheral surface, and guide pipe 7 is fixedly mounted on the outer tube 8; One lower cover 10 has a gathering sill 39, and the outstanding track 36 on the guide pipe 7 is guided through gathering sill on the inner circumferential surface of lower cover.In addition, spring 11 is set at the front and rear of guide pipe 7 promptly on interior pipe 4 and outer tube 8.When assembling loam cake 312 and lower cover 310, be used in the inner space part 13 that loam cake 312 and lower cover 310 form about supporting guide pipe 7.The loam cake 312 of assembling and the effect of lower cover 310 are to form clamping device G, adjust the length of suction extension pipe.Also have, guide pipe 7 is provided with a block mating groove 14 along the circumferencial direction vertical with length direction on its excircle upper surface, and block 15 is positioned at wherein.Block 15 adopts three-dimensional parallelogram shape and has the sloping portion 315a of a hypotenuse along its short transverse, and block 15 is connected on the block impeller 16 as a result, and this block impeller is formed on the part corresponding with it on the inner circumferential surface of loam cake 12.
The side edge shape of block impeller 16 is suitably to tilt, consistent with the hypotenuse shape of block 15, when clamping device G by when incline direction reverses, inclined-plane on the lateral section that forms on the inclined-plane of block impeller 16 and the block 15 matches, so that make block 15 move to release areas along block mating groove 14.In other words, block 15 is to carry out along the direction vertical with the direction of primary action power towards the motion of release areas, so that discharge block 15.
According to the present invention, in order to obtain a high pressure, block 15 and block mating groove 14 do not need to form sweep.As mentioned above, in order to move block 15 along its length direction with smooth mode in block mating groove 14, block 15 and block mating groove 14 need a big interior insertion angle.
In other words, without any need for curved surface, and traditional block forms sweep at this in the bottom for block of the present invention 15.
On the other hand, be contained in the pipe 4 and outer tube 8 on guide pipe 7, in loam cake 312 and lower cover 310 by 11 elastic bearings of left and right sides spring.Under this state, block 15 is connected to up and down on the block impeller 16 of loam cake 312 through block mating grooves 14, and is connected with locking slot 2 on the interior pipe 4, and inner cap 17 and enclosing cover 18 are fixed and are assemblied in the two ends of loam cake 312 and lower cover 310.
According to the present invention, as shown in Figure 4, interior pipe 4 can have ledge 4a, separates a plurality of locking slots 2 of formation with predetermined space on this ledge.Equally, can on guide pipe 7, form the outstanding track 36 of a plurality of inclinations, on lower cover 310, form a plurality of gathering sills 39.Certainly, loam cake 312 and lower cover 310 can form the parts of one each other.
According to above-mentioned structure, when user's a hand lives in clamping device G,, just applied an initial external force and come along its axially pulling or promote clamping device G so that during along its elongated lengthwise suction extension pipe.Like this, according to the present invention, by operation clamping device G, be formed on outstanding guide rail 36 on the circumferential surface of guide pipe 7 by incline direction and be formed on gathering sill 39 on the inner circumferential surface of lower cover 310 along axle, generation is along the external force action that is higher or lower than axial direction, thereby external force is converted to an oblique movement power that is rotated.In other words, the external force of initial manipulation causes a twist motion, and by above-mentioned guiding action, clamping device G realizes the rotation of a predetermined torque at this.
When clamping device G along clockwise direction or counterclockwise rotate when producing twist motion, be installed in the spring 11 of the front and rear part of clamping device G inside by elasticity symmetrically, this twist motion is departed from, simultaneously, produce and to make clamping device G quickly recover to power as the poised state of confined state.
In the position that the twist motion of clamping device G finishes, promptly when outstanding guide rail 36 arrival are formed on the end portion of the gathering sill 39 on the lower cover 310, block 15 moves to end portion along the length direction of block mating groove 14 always, at this moment, block 15 is positioned at release areas with respect to block mating groove 14.
On the circumferential surface of pipe 4, it was made of a series of indents that are spaced apart with predetermined space on loop pipe 4 in a plurality of locking slots 2 that block 15 inserts each was formed on.Along with its gradually away from the center, each in a plurality of locking slots 2 reduces on the degree of depth symmetrically.Therefore, for locking slot, the two ends of locking slot 2 are without any effect.In other words, the block 15 that is positioned at locking slot 2 two ends moves to a safety zone, there is not the interference of locking slot 2 at this, simultaneously, by clamping device G is applied a continuous external force or internally manage 4 or outer tube 8 apply an additional external force, telescopic suction extension pipe can be extended and be adjusted on length apace.
In order to understand operation of the present invention more exactly, will discuss the block 15 that the shape with locking slot 2 is closely related and the shape of block impeller 16 below in detail.As mentioned above, block 15 adopts three-dimensional parallelogram shape and has the sloping portion 15a of a hypotenuse along its short transverse, thereby is connected on the block impeller 16.Block impeller 16 constitutes with the integrally formed projection of loam cake on the inner circumferential surface of loam cake 312 central authorities by one, and adopts an irregular quadrilateral shape on its section.
The irregular quadrilateral side edge shape of block impeller 16 is suitably to tilt, consistent with the hypotenuse shape of block 15, when clamping device G by when incline direction reverses, inclined-plane on the lateral section that forms on the inclined-plane of block impeller 16 and the block 15 matches, so that make block 15 move to release areas along locking slot 2.In other words, in order to discharge block 15, block 15 is to carry out along the direction vertical with the direction of primary action power towards the motion of release areas.
From the 3rd preferred embodiment of the present invention be appreciated that block 15 be released be along be applied to clamping device G at first on the vertical direction of the direction of power carry out.After block 15 arrived release areas, continuous action was applied on the outer tube 8 in the power on the clamping device G, thereby realized the telescopic length extension of suction extension pipe with a kind of mechanical structure.In addition, in order to obtain a high pressure, block 15 and locking slot 2 do not need to form sweep on interconnective part, for the length direction along block mating groove 14 moves block 15 with smooth mode, block 15 and block mating groove 14 need a big interior insertion angle.
The preferred embodiments of the present invention have the structure different with traditional structure, be provided with in traditional structure that block moves up and down local or be used for the top release areas of block, thus increase pressure sharp.According to the present invention, apply the external force that affacts on the clamping device G, thereby promote or the pulling suction extension pipe, and, can adjust to an extension length that needs by above-mentioned continued operation along the direction of advance of initial external force.At this moment,, just can carry out above-mentioned length adjustment continuously even, use a hand that is held in the user on the clamping device G with nozzle segment kiss the earth and using under the state of vacuum cleaner tightly, and without any inconvenience.
Clearly explain according to top, the length adjuster of the suction extension pipe that is used for vacuum cleaner according to a preferred embodiment of the invention has following advantage: first, block moves along the length direction that is formed on each in a plurality of locking slots on the pipe in, thereby the pressure of the suction extension pipe that will be connected with block is increased to it at utmost; Second, the power that acts on the clamping device of adjustment is applied directly on the block, so that release block, thereby cause that block arrives release areas apace, apply continuous action simultaneously to the power of adjusting on the clamping device, realize the telescopic degree adjustment of suction extension pipe, so as to use one be held in the hand of adjusting the user on the clamping device just can be fast and the smooth mode extension of carrying out pipe operate; The 3rd, be lowered to minimum at each locking slot of interior pipe and the friction between the block, thereby significantly reduced because fricative noise, and will reuse the block that causes and the wearing and tearing of locking slot drop to minimum owing to long-time.
Those skilled in the art will recognize easily, that the present invention is carried out, not strict following in these and other different improvement and the variation of this description with the typical case's application that illustrates all do not break away from marrow of the present invention and the scope that the following claim book is proposed.
Claims (11)
1. length adjuster that is used for the suction extension pipe of vacuum cleaner, comprise: pipe (4) in, it have a plurality of with predetermined space be spaced apart at an upper portion thereof locking slot (2) and be arranged on the recessed gathering sill (3) of its underpart along its length direction; A guide pipe (7), circumferential surface is provided with a guide protrusions (5a) within it, so that interior pipe is slidingly matched, also be provided with a counterpart that cooperates with matching slot on the outer tube (8), thereby obtain a length adjustment operation that needs, it is characterized in that: by guide pipe with as the action of the clamping device of an outer body of length adjuster along its length direction, guide pipe and clamping device depart from by the elastic force of a spring, one lid that forms clamping device is provided with a block controller in the top of portion within it, be used for carrying slidably a block, the bottom of portion is provided with a spring-operated device within it, the elasticity that is used for spring departs from operation, block is installed in along on the block mating groove of circumferential length direction formation, on the head portion of guide pipe, pass guide pipe, be formed on the block controller control on the top of this lid inside, each locking slot cooperates with block and closely contacts with the bottom of block, thereby with respect to clamping device moving along the front and back length direction, block is created in the ON/OFF motion in the block mating groove, thus the length adjustment of the interior pipe that realization needs.
2. length adjuster as claimed in claim 1, it is characterized in that, the ON/OFF of block is slided and carried out in such a way: lid guide rail (5b) and the spring on the external peripheral surface of its underpart that guide pipe forms on block mating groove (14) and the external peripheral surface at an upper portion thereof insert projection (10a) and spring fixed lobe (10b), guide pipe (7) is connected with an end of outer tube (8), when assembling loam cake (13) that is provided with block controller (6) and the lower cover (12) that is provided with spring-operated device (9) with guide pipe, block mating groove (14) internal stop at guide pipe (7) closely is connected on the block controller (6) (15), and its other end is locked in the corresponding locking slot (2) on the interior pipe (4), simultaneously, spring fixed lobe (10b) and spring that spring (11) is positioned on the guide pipe that connects spring-operated device (9) insert on the projection (10a), the result is by the flexible formation of spring (11), clamping device is biased, thus the length adjustment of pipe (4) in realizing.
3. length adjuster as claimed in claim 2, it is characterized in that, block controller (6) is by forming along the block release projection (6a) of its length direction with along reset projection (6b) and block impeller (6c) of the block of its circumferencial direction, all these elements can be used as discrete component and form respectively, and are perhaps integrally formed as the inner surface of the element of one and loam cake.
4. length adjuster as claimed in claim 2, it is characterized in that, spring-operated device (9) is by forming along the gathering sill (9b) of the guide pipe of its length direction with along the spring lock projection (9a) of its circumferencial direction, all these elements can be used as discrete component and form respectively, and are perhaps integrally formed or integrally formed with the inner surface of lower cover from the inner surface of lower cover as the element of one.
5. length adjuster as claimed in claim 1, it is characterized in that, the ON/OFF of block is slided and is carried out in such a way: form block mating groove (14) on the guide pipe external peripheral surface at an upper portion thereof, moved by linear along this groove block (15), one slide (26) has one and is used for the oblique chute (29) that closely contacts with block (15), spring (11) is along between the front and rear part that is axially disposed within guide pipe (7) of guide pipe (7), and be positioned on the external peripheral surface of its underpart, and in the inner space part (213) of the clamping device that forms when being resiliently mounted on, thereby the length adjustment of pipe (4) in realizing by assembling lid (210).
6. a length adjuster as claimed in claim 5 is characterized in that, block (15) has polyhedron-shaped and forms slide protrusion (15a) at its top and form a sloping portion on inclined-plane (15b) at its two ends along short transverse.
7. a length adjuster as claimed in claim 5 is characterized in that, slide (26) surface is within it gone up formation oblique chute (29), and the internal face of this groove is higher in the central, along with it stretches to two ends and reduction gradually.
8. a length adjuster as claimed in claim 5 is characterized in that, goes up formation a plurality of block mating grooves (14) and sliding tray (29) at guide pipe (7) and slide (26), is used for being meshed with a plurality of blocks (15).
9. length adjuster as claimed in claim 1, it is characterized in that, the ON/OFF of block is slided and is carried out in such a way: form block mating groove (14) on the guide pipe external peripheral surface at an upper portion thereof, moved by linear along this groove block (15), and the incline direction along axle on its external peripheral surface forms one or more outstanding guide rails (36), the one or more gathering sills (39) that are formed on the lower cover (310) are guided through this guide rail, spring (11) is arranged between the front and rear part of guide pipe (7), and be resiliently mounted on by upper and lower covers (312,310) in the inner space part (313) of the clamping device of assembling formation, thus the length adjustment of pipe (4) in realizing.
10. a length adjuster as claimed in claim 9 is characterized in that, block (15) adopts the shape of parallelogram and has the sloping portion (315a) of a hypotenuse, as with the surface that is connected of the locking slot (2) of interior pipe (4).
11. one kind as claim 2,5 and 9 described length adjusters, it is characterized in that, interior pipe (4) comprises a ledge (4a) that is provided with along its length thereon, and a plurality of locking slots (2) separate with predetermined space and are formed on this ledge.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000034330A KR20020000094A (en) | 2000-06-21 | 2000-06-21 | A length control device for a telescopic extension pipe of vacuum cleaner |
| KR34330/2000 | 2000-06-21 | ||
| KR1020000045092A KR20020011675A (en) | 2000-08-03 | 2000-08-03 | A length control device for a telescopic extension pipe of vacuum cleaner |
| KR45092/2000 | 2000-08-03 | ||
| KR10-2000-0052181A KR100381220B1 (en) | 2000-09-04 | 2000-09-04 | A length control device for a telescopic extension pipe of vacuum cleaner |
| KR52181/2000 | 2000-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1368861A CN1368861A (en) | 2002-09-11 |
| CN1150852C true CN1150852C (en) | 2004-05-26 |
Family
ID=27350271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008114331A Expired - Lifetime CN1150852C (en) | 2000-06-21 | 2000-09-25 | Length adjustment device of suction extension pipe for vacuum cleaner |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1150852C (en) |
| AU (1) | AU7457100A (en) |
| WO (1) | WO2001097672A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004049891A1 (en) * | 2002-12-04 | 2004-06-17 | Ismail Yakici | Locking mechanism of interconnected extension pipe for the vacuum cleaner |
| DE102004010442A1 (en) * | 2004-03-01 | 2005-09-22 | Roxxan Gmbh | Device for stepless adjustment of vacuum cleaner pipes |
| CN1307931C (en) * | 2005-02-05 | 2007-04-04 | 马卫宏 | Telescoping dust collector suction pipe |
| CN100367902C (en) * | 2005-10-24 | 2008-02-13 | 徐为尔 | Telescopic sucking tube of vacuum cleaner |
| ITMI20060616A1 (en) * | 2006-03-31 | 2007-10-01 | Omec Spa | TELESCOPIC EXTENSION FOR AN APPLIANCE |
| CN102652653B (en) * | 2012-05-09 | 2014-10-08 | 江苏国新金属制品有限公司 | Expansion pipe for vacuum cleaner |
| KR101304606B1 (en) * | 2011-11-02 | 2013-09-05 | 강소국신금속제품유한회사 | Telescopic pipe of vacuum cleaner |
| CN112128494B (en) * | 2020-08-24 | 2023-12-01 | 上海齐耀动力技术有限公司 | Flange joint for vacuum interlayer pipeline and vacuum interlayer pipeline assembly |
| CN114343476B (en) * | 2021-11-24 | 2023-02-17 | 苏州市龙士威金属制品有限公司 | Detachable dust collection pipe joint of hose and using method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2053349T3 (en) * | 1991-06-28 | 1994-07-16 | Omec Spa | TELESCOPIC EXTENSION FOR A VACUUM CLEANER. |
| AU2189299A (en) * | 1999-02-09 | 2000-03-06 | Eunsung Electronics Co., Ltd. | A suction pipe of a vacuum cleaner |
-
2000
- 2000-09-25 CN CNB008114331A patent/CN1150852C/en not_active Expired - Lifetime
- 2000-09-25 WO PCT/KR2000/001066 patent/WO2001097672A1/en active Application Filing
- 2000-09-25 AU AU74571/00A patent/AU7457100A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN1368861A (en) | 2002-09-11 |
| AU7457100A (en) | 2002-01-02 |
| WO2001097672A1 (en) | 2001-12-27 |
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