CN1118265C - Telescopic dust suction pipe for vacuum cleaner - Google Patents
Telescopic dust suction pipe for vacuum cleaner Download PDFInfo
- Publication number
- CN1118265C CN1118265C CN 98110777 CN98110777A CN1118265C CN 1118265 C CN1118265 C CN 1118265C CN 98110777 CN98110777 CN 98110777 CN 98110777 A CN98110777 A CN 98110777A CN 1118265 C CN1118265 C CN 1118265C
- Authority
- CN
- China
- Prior art keywords
- pipe
- tooth bar
- dust catcher
- mark
- outer tube
- 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 present invention relates to a telescopic dust suction pipe for a vacuum cleaner, which comprises an inner pipe 2 and an outer pipe 1, wherein the inner pipe 2 is inserted in the outer pipe 1, and a position locking mechanism is arranged between the inner pipe 2 and the outer pipe 1. The present invention is characterized in that a toothed bar 3 is axially embedded on the inner tube 2, and an elastic stop block 4 on the position locking mechanism is inserted in a toothed groove 7 of the toothed bar 3. The inner pipe and the toothed bar can be separately made. The inner pipe can be made by a pair of extrusion dies, and the inner pipe can be cut in prescribed length according to the need.
Description
Technical field
The present invention relates to the sweep-up pipe that uses on a kind of dust catcher.
Background technology
In the prior art, the sweep-up pipe of dust catcher adopts corrugated flexible hose to draw from dust catcher, connects by telescopic hard tube to form pipeline again, present hard tube all adopts aluminium alloy or chrome faced steel to make, because pipe adopts drawing process to make, so its axial size is difficult to guarantee that tolerance is very big.Make hard tube with mould of plastics and can guarantee tolerance within the limits prescribed, but need to be provided with the positioning tooth of many axially-aligned on the outer wall of inner tube,, improved production cost so the interior pipe that differs for length need be made the mould of all lengths.
Technical scheme
The purpose of this invention is to provide the plastic inner pipe that a kind of positioning tooth can be suitable for random length, can be made into the expansion sweep-up pipe of dust catcher by pipe in this.
Technical scheme of the present invention is: a kind of expansion sweep-up pipe of dust catcher, and pipe and outer tube in comprising, described interior pipe is inserted in the outer tube, is provided with position locking mechanism between described interior pipe and the outer tube; Axially be embedded with tooth bar mutually on the pipe in described, flexible block on the described position locking mechanism is inserted in the mark of mouth groove of described tooth bar, the pipe outer tube wall is provided with axial strip groove in described, described tooth bar is positioned at this strip groove and tooth bar forms embedding mutually with pipe, and the lateral edges that tooth bar exposes is provided with a plurality of mark of mouth grooves.
The present invention compared with prior art has following advantage:
Because tooth bar is to be embedded on the inner pipe wall mutually, so interior pipe and tooth bar can separately be made, interior like this pipe can be made pipe with a secondary extrusion die, the length of intercepting regulation on demand.Tooth bar can be made with metal material, length intercepting on demand.
Description of drawings
Accompanying drawing 1 is a structural front view of the present invention;
Accompanying drawing 2 is the A-A direction cutaway view of accompanying drawing 1;
Sectional view when accompanying drawing 3 matches with tooth bar for interior pipe;
Accompanying drawing 4 be tooth bar the part body view wherein:
1 outer tube; Pipe in 2; 3 tooth bars; 4 flexible blocks; 5 push buttons; 6 stopper springs; 7 mark of mouth grooves; 8 strip grooves; 9 guiding surfaces.
The specific embodiment
Referring to accompanying drawing, a kind of expansion sweep-up pipe of dust catcher, pipe 2 and outer tube 1 in comprising, pipe 2 is inserted in the outer tube 1 in described, be provided with position locking mechanism between pipe 2 and the outer tube 1 in described, this position locking mechanism can be with the relative position between interior pipe 2 and the outer tube 1 locking, and pipe 2 can elongate relatively with outer tube 1 in making; Axially be embedded with tooth bar 3 mutually on the pipe 2 in described, flexible block 4 on the described position locking mechanism is inserted in the mark of mouth groove 7 of described tooth bar 3, but pipe 2 and outer tube 1 in the relative fixed after flexible block 4 is inserted in the mark of mouth groove 7 of diverse location, and then make the length of sweep-up pipe scalable.Pipe 2 outer tube walls are provided with axial strip groove 8 in described, and described tooth bar 3 is positioned at this strip groove 8 and tooth bar 3 forms embedding mutually with pipe 2, and the lateral edges that tooth bar 3 exposes is provided with a plurality of mark of mouth grooves 7.The method of described phase embedding is that described tooth bar 3 is inserted in the interior formation of the axial jack phase embedding on strip groove 8 sidewalls, and the interior pipe 2 at described tooth bar 3 two ends is provided with restriction tooth bar 3 axially movable blocks.In order to prevent that tooth bar 3 from dropping out, described tooth bar 3 is fixed on the interior pipe 2 tooth bar 3 in the tube wall inner bending of interior pipe 2.Referring to accompanying drawing 4, it is outwards open skewed that the oral area two side of the mark of mouth groove 7 on the described tooth bar 3 is, and is convenient to flexible block 4 and skids off in the mark of mouth groove 7 and slip into next mark of mouth groove, also can use the sidewall of arc.Guiding surface 9 set on one end of the flexible blocks 4 that inserted in the described mark of mouth groove 7 and the push button 5 contacts, when axial promotion push button 5, described guiding surface 9 promotes flexible block 4 and breaks away from described mark of mouth groove 7, when unclamping described push button 5, flexible block 4 promptly enters in the corresponding mark of mouth groove 7.Another kind of tooth bar 3 and interior pipe 2 structure of embedding mutually are to manage in described on 2 the tube wall axially to have strip groove 8, be embedded with outer surface in this strip groove 8 mutually and be provided with the tooth bar 3 of a plurality of mark of mouth grooves 7, the inside of this strip groove makes tooth bar 3 can not drop out strip groove 8 greater than oral area.Guide effect when described strip groove 8 plays inner and outer pipe slided to axial prevents to relatively rotate between the inner and outer pipe.
Claims (6)
1, a kind of expansion sweep-up pipe of dust catcher comprises interior pipe [2] and outer tube [1], and described interior pipe [2] is inserted in the outer tube [1], is provided with position locking mechanism between described interior pipe [2] and the outer tube [1]; Axially be embedded with tooth bar [3] mutually on the pipe [2] in described, flexible block on the described position locking mechanism [4] is inserted in the mark of mouth groove [7] of described tooth bar [3], it is characterized in that: pipe [2] outer tube wall is provided with axial strip groove [8] in described, described tooth bar [3] is positioned at this strip groove [8] and tooth bar [3] forms embedding mutually with pipe [2], and the lateral edges that tooth bar [3] exposes is provided with a plurality of mark of mouth grooves [7].
2, the expansion sweep-up pipe of dust catcher according to claim 1 is characterized in that: described tooth bar [3] is fixed on the interior pipe [2] tooth bar [3] in the tube wall inner bending of interior pipe [2].
3, the expansion sweep-up pipe of dust catcher according to claim 1 is characterized in that: the oral area two side of the mark of mouth groove [7] on the described tooth bar [3] is outwards open skewed.
4, the expansion sweep-up pipe of dust catcher according to claim 1 is characterized in that: an end of the flexible block [4] that is inserted in the described mark of mouth groove [7] is gone up set guiding surface [9] with push button [5] and is contacted.
5, the expansion sweep-up pipe of dust catcher according to claim 1 is characterized in that: described tooth bar [3] is inserted in the interior formation of the axial jack phase embedding on strip groove [8] sidewall.
6, the expansion sweep-up pipe of dust catcher according to claim 1 is characterized in that: the interior pipe [2] at described tooth bar [3] two ends is provided with the axially movable link stopper of restriction tooth bar [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110777 CN1118265C (en) | 1998-04-13 | 1998-04-13 | Telescopic dust suction pipe for vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110777 CN1118265C (en) | 1998-04-13 | 1998-04-13 | Telescopic dust suction pipe for vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1203775A CN1203775A (en) | 1999-01-06 |
| CN1118265C true CN1118265C (en) | 2003-08-20 |
Family
ID=5220798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98110777 Expired - Fee Related CN1118265C (en) | 1998-04-13 | 1998-04-13 | Telescopic dust suction pipe for vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118265C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299630C (en) | 2002-12-18 | 2007-02-14 | 张毓麒 | Hose for vacuum cleaner |
| CN105371072B (en) * | 2015-11-03 | 2018-10-02 | 北京天泽电力集团有限公司 | a kind of support device |
| CN106137026A (en) * | 2016-08-19 | 2016-11-23 | 苏州凯丽达电器有限公司 | A kind of telescopic vacuum cleaner of dust suction bar |
-
1998
- 1998-04-13 CN CN 98110777 patent/CN1118265C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1203775A (en) | 1999-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030820 Termination date: 20110413 |