CN2429093Y - Extension tube of vacuum cleaner - Google Patents
Extension tube of vacuum cleaner Download PDFInfo
- Publication number
- CN2429093Y CN2429093Y CN 00220914 CN00220914U CN2429093Y CN 2429093 Y CN2429093 Y CN 2429093Y CN 00220914 CN00220914 CN 00220914 CN 00220914 U CN00220914 U CN 00220914U CN 2429093 Y CN2429093 Y CN 2429093Y
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- CN
- China
- Prior art keywords
- outer tube
- cover
- groove
- interior
- 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 - Fee Related
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- Electric Vacuum Cleaner (AREA)
Abstract
The utility model discloses an extension tube of a suction cleaner, which is mainly composed of an inner tube, an outer tube and an outer sleeve, wherein semicircular grooves are arranged on the inner tube in a step mode. The outer tube is sheathed outside the inner tube, and one end of the outer tube is provided with an elastic member. An outer circle of the elastic member is provided with a through slot, and the outer sleeve is sheathed outside the outer tube and abutted on both ends of the elastic member. The inner part of the outer sleeve is provided with flanges, the outer tube is fixedly connected with elastic pieces of which the end heads are circular. After the utility model is assembled, the circular end heads of the elastic pieces penetrate through the through slot to be fastened in the semicircular grooves of the inner tube and are pressed and supported by the flanges in the outer sleeve. The utility model has the advantages of simple structure, convenient assemblage, simple and convenient tube length regulation and reliable locking.
Description
The utility model relates to a kind of parts of dust catcher, especially a kind of architecture advances of dust collector expansion pipe locking mechanism.
In order to make dust catcher have good adaptability, the sweep-up pipe of existing dust catcher has all adopted stretching structure basically, the pipe and the structure of locking by locking mechanism in promptly inserting in outer tube.When needs are regulated sweep-up pipe length, as long as unclamp locking mechanism, the interior pipe in the outer tube need be extracted out or be pushed by length, lock locking mechanism again and get final product.Locking mechanisms such as the push-key type that existing dust collector expansion pipe adopts, twist lock type all when regulating telescoping tube, need be finished the pine oil of locking mechanism with independent action, and it is still convenient inadequately therefore to regulate pipe range.For thereby the pine oil of finishing locking mechanism by pipe action in extracting out or pushing makes the adjusting of telescoping tube more convenient, according to the knowledge of the applicant, abroad the someone has developed a kind of dust collector expansion pipe of locking mechanism as shown in Figure 1.The interior pipe (10) of this telescoping tube is gone up stepping and is provided with semicircle groove (4), interior cover (11) one ends and outer tube (1) plug together fixing, the other end is equipped with ring elastic parts (7 '), should interior be sleeved on outside the interior pipe (10), the roller (3 ') that matches with interior pipe semicircle groove (4) is housed in its groove, overcoat (2) is sleeved on outside outer tube (1) and the interior cover (11), and is resisted against ring elastic parts (7 ') two ends, and its inside is shaped on flange (5).In the raw the time, flange (5) is pressed on the roller (3 ') that is sticked in semicircle groove (4), thereby makes the inner and outer pipe relative fixed at ring elastic parts (7 ').When by extracting out in the outer tube (1) or when pushing interior pipe (10), ring elastic parts (7 ') distortion, flange (5) breaks away from roller (3 '), thereby makes roller (3 ') can break away from the fastening state in semicircle groove (4), and pipe (10) can be freely by extracting out in the outer tube (1) or pushing in the result.Afterwards, ring elastic parts (7 ') resets, and inner and outer pipe recovers lock-out state again.This " roller locking-type " though the telescoping tube of structure has had obvious progress than original technology, and structure is still simplified inadequately, and roller (3 ') have from interior pipe (10) groove drop out may, so long term reliability is not good enough.
The purpose of this utility model is: at the deficiency that existing " roller locking-type " dust collector expansion pipe exists, propose that a kind of structure is more simple, the dust collector expansion pipe of better reliability.
In order to achieve the above object, the technical solution of the utility model is: this dust collector expansion pipe is mainly by interior pipe (10), outer tube (1), overcoat (2) is formed, pipe (10) is gone up stepping and is provided with semicircle groove (4) in described, described outer tube (1) is sleeved on outside the interior pipe (10), one end is equipped with elastic component (7), its cylindrical has groove, described overcoat (2) is sleeved on the outer tube (1), and be resisted against elastic component (7) two ends, described overcoat (2) inside is shaped on flange (5), its improvements are, described outer tube (1) is fixed with the rounded flexure strip in termination (3), after the assembling, the button-head of described flexure strip (3) sees through groove and is fastened in the semicircle groove (4) of interior pipe (10), and by flange (5) pressure holding in the overcoat (2).
Normal position after the assembling, i.e. elastic component (7) in the raw the time, because flange (5) is pressed on the button-head of the flexure strip (3) that is sticked in semicircle groove (4), so inner and outer pipe locks relatively.When regulating telescoping tube length, promptly from outer tube (1), extract out or when in outer tube (1), pushing interior pipe (10), elastic component (7) distortion, flange (5) breaks away from button-head, thereby it can be deviate from from semicircle groove (4) because of strain, and pipe (10) can be freely by extracting out in the outer tube (1) or pushing in the result.After pipe range mixed up, elastic component (7) resetted, and the button-head of flexure strip (3) sees through groove once more and is fastened in the semicircle groove (4) of interior pipe (10), and again by flange (5) pressure holding in the overcoat (2), thereby inner and outer pipe recovers lock-out state again.
Because flexure strip (3) is connected with interior cover (11), so the utility model designs simplification, and is easy to assembly, locks very reliable.
Below in conjunction with accompanying drawing the technical solution of the utility model is described further.
Fig. 1 is existing " roller locking-type " dust collector expansion pipe structural representation.
Fig. 2 is the structural representation of the utility model embodiment one.
Fig. 3 is the structural representation of the utility model embodiment two.
Embodiment one
Dust collector expansion pipe among Fig. 2 mainly is made up of interior pipe (10), outer tube (1), interior cover (11), overcoat (2), tail cover (12).Interior pipe (10) is gone up stepping and is provided with semicircle groove (4).Interior cover (11) one ends are shaped on two barbs (9), and two barbs (9) insert in the two corresponding jacks (8) of outer tube (1) termination during assembling, and it is fixing that interior cover (11) and outer tube (1) are plugged together, and be sleeved on outside the interior pipe (10).The high spot of interior cover (11) other end and the stage casing of spring (7) are connected, and its middle part cylindrical has two square hole grooves.Overcoat (2) is sleeved on outside outer tube (1) and the interior cover (11), inside is shaped on two flanges (5), the projection of one end is resisted against spring (7) one ends, the cross section, termination is the dovetail groove shape, plug together at the tail cover corresponding dovetails of (12) one ends (6) and upward fix, the end face of tail cover (12) is resisted against the other end of spring (7).The flexure strip of this dust collector expansion pipe is the metallic elastic sheet (3) that two ends are rolled into round end, and this metallic elastic sheet (3) is connected in the middle entity place of interior cover (11) two square hole grooves by screw.After the assembling, two round ends of described metallic elastic sheet (3) see through two square holes at interior cover (11) middle part respectively, be fastened in two semicircle grooves (4) of interior pipe (10), and respectively by two flanges (5) pressure holding in the overcoat (2).At this moment, inner and outer pipe is in the lock state, and interfixes.
When needs are regulated pipe range, no matter be from outer tube (1), to take out to drag interior pipe (10), still pipe (10) in outer tube (1), inserting, all will at first overcome the active force of spring (7), make overcoat (2) and interior cover (11) relative displacement, the flange (5) in the overcoat (2) will break away from the position of pressure holding metallic elastic sheet (3) round end as a result.At this moment, axially take out drag or the effect of insertion force under, metallic elastic sheet (3) round end perk breaks away from the state in two semicircle grooves (4) that are fastened on interior pipe (10), thereby make between the inner and outer pipe and can produce displacement to axial, finally reach the purpose of regulating pipe range.Mix up after the pipe range by shelves, axially take out and drag or insertion force disappears, spring (7) makes overcoat (2) and interior cover (11) recover latched position automatically, and inner and outer pipe locks again.Move a gas and breathe out owing to regulate pipe range and release, so the adjusting of the dust collector expansion pipe of present embodiment is convenient especially.In addition, find out easily that processing, the assembly process process of present embodiment are good, cost economy.
Embodiment two
Embodiment illustrated in fig. 3 two basic structure and manipulate identical with embodiment one, its main distinction be former in the cover (11) middle part cylindrical two square hole grooves change system into the symmetry
The cantilever-shaped round end flexure strip (3 ") of disjunctor is made in the direct injection moulding of entity in the middle of enclosing of shape groove, this groove, be like this make or assembling all more easy.
The utility model is not limited to the foregoing description.All employings are equal to replaces the technical scheme that forms, and is the protection domain that present patent application requires.
Claims (5)
1. dust collector expansion pipe, mainly by interior pipe (10), outer tube (1), overcoat (2) is formed, pipe (10) is gone up stepping and is provided with semicircle groove (4) in described, described outer tube (1) is sleeved on outside the interior pipe (10), one end is equipped with elastic component (7), its cylindrical has groove, described overcoat (2) is sleeved on outside the outer tube (1), and be resisted against elastic component (7) two ends, described overcoat (2) inside is shaped on flange (5), it is characterized in that: described outer tube (1) is fixed with the rounded flexure strip in termination (3), after the assembling, the button-head of described flexure strip (3) sees through groove and is fastened in the semicircle groove (4) of interior pipe (10), and by flange (5) pressure holding in the overcoat (2).
2. dust collector expansion pipe according to claim 1, it is characterized in that: also comprise interior cover (11), cover (11) one ends are shaped on two barbs (9) in described, two barbs (9) insert in the two corresponding jacks (8) of outer tube (1) termination during assembling, and it is fixing that interior cover (11) and outer tube (1) are plugged together, and described interior cover (11) other end is equipped with elastic component (7), its cylindrical has groove, cover (11) is sleeved on outside the interior pipe (10) in described, is fixed with the rounded flexure strip in termination (3)
3. dust collector expansion pipe according to claim 1 and 2, it is characterized in that: also contain tail cover (12), the high spot of cover (11) other end and the stage casing of spring (7) are connected in described, the projection of described overcoat (2) one ends is resisted against spring (7) one ends, the cross section, termination is the dovetail groove shape, plug together at the tail cover corresponding dovetails of (12) one ends (6) and upward fix, the end face of tail cover (12) is resisted against the other end of spring (7).
4. dust collector expansion pipe according to claim 1, it is characterized in that: described flexure strip is the metallic elastic sheet (3) that two ends are rolled into round end, during assembling, described metallic elastic sheet (3) is connected in the middle entity place of interior cover (11) two square hole grooves by screw.
5. dust collector expansion pipe according to claim 1 and 2 is characterized in that: described two grooves are made symmetrical
The entity that is enclosed in the middle of the shape groove, this groove is directly made the cantilever-shaped round end flexure strip (3 ") of disjunctor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220914 CN2429093Y (en) | 2000-07-04 | 2000-07-04 | Extension tube of vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220914 CN2429093Y (en) | 2000-07-04 | 2000-07-04 | Extension tube of vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429093Y true CN2429093Y (en) | 2001-05-09 |
Family
ID=33585880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220914 Expired - Fee Related CN2429093Y (en) | 2000-07-04 | 2000-07-04 | Extension tube of vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429093Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691433A (en) * | 2015-02-13 | 2015-06-10 | 苏州佳世达光电有限公司 | Adjustable supporting device |
| CN106983543A (en) * | 2017-03-09 | 2017-07-28 | 许啸 | The minimally invasive tunnel dilator of reflexed umbrella-type |
-
2000
- 2000-07-04 CN CN 00220914 patent/CN2429093Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691433A (en) * | 2015-02-13 | 2015-06-10 | 苏州佳世达光电有限公司 | Adjustable supporting device |
| CN106983543A (en) * | 2017-03-09 | 2017-07-28 | 许啸 | The minimally invasive tunnel dilator of reflexed umbrella-type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |