CN201001692Y - Metal telescopic pipe locking device - Google Patents
Metal telescopic pipe locking device Download PDFInfo
- Publication number
- CN201001692Y CN201001692Y CNU2007200333202U CN200720033320U CN201001692Y CN 201001692 Y CN201001692 Y CN 201001692Y CN U2007200333202 U CNU2007200333202 U CN U2007200333202U CN 200720033320 U CN200720033320 U CN 200720033320U CN 201001692 Y CN201001692 Y CN 201001692Y
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- CN
- China
- Prior art keywords
- metal
- slide block
- locking device
- hole
- groove
- 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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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a metal extension tube fixing device, which comprises an internal metal tube and an outer metal tube, wherein the metal external tube is provided with a sleeve fixed by a nut; the outer metal tube and the sleeve are provided with a locking device; the upper surface of the inner metal tube is provided with a groove; the two sides of the groove are symmetrically distributed by a plurality of protrusions; the two ends of the sleeve corresponds the groove position is provided with the location and is embedded into the groove; the position on the upper surface of the sleeve corresponds to the groove position is provided with a hole; the hole is provided with the sliding block as well as a metal block; the upper end of the metal block is provided with a bayonet with a shape corresponding to the protrusion; the relative sides of the sliding block and the location block are provided with a settlement hole; the corresponding settlement hole are provided with a spring; the upper surface of the sliding block and the upper surface of the metal external pipe corresponding is provided with a pushbutton connection hole; the pushbutton connection hole is provided with a pushbutton. The utility model provides a novel device that has a compact structure, large load force and the location position of the flex pipe is free from the blind point.
Description
Technical field
The utility model relates to the telescoping tube locking device.
Background technology
Dust catcher is the cleaning implement of Modern Family's indispensability.The sweep-up pipe of existing dust catcher has all adopted stretching structure basically, and this structure is that interior pipe is inserted in the outer tube, and locks by locking device.When needs are regulated the length of telescoping tube, as long as unclamp retaining mechanism, interior pipe on demand length from outer tube is extracted out or pushed, lock locking device again and get final product.
Existing locking device mainly contains two kinds of push-key type and twist lock types, push-key type adopts the push-and-pull locking key to finish lock function, push-key type is to finish the flexible of telescoping tube by pushing away the button that is fixed on the locking device on the outer tube, it comprises outer tube, interior pipe and telescopic control device, the upper surface of interior pipe is provided with equidistant bayonet socket, lower surface is provided with the slip locating slot, and pipe is located slip in allowing by semicircle slide bar in outer tube; Twist lock type is to adopt the turn locking key to finish lock function.Their weak point is: this phenomenon occurs easilier after 1) might slippage, especially parts depreciation when telescoping tube is subjected to big active force, thereby have unsafe hidden danger; 2) the flexible distance of telescoping tube is fixed value, telescoping tube can not be locked onto the optional position; 3) structure is complicated, the dismounting inconvenience, and cost of manufacture is higher.
Summary of the invention
The purpose of this utility model is: low and telescoping tube can not be locked onto the shortcoming of optional position at present dust collector expansion pipe holding capacity, provide a kind of compact conformation, the big and telescoping tube latched position non-blind spot novel dust collector expansion pipe locking device of holding capacity.
The purpose of this utility model is achieved in that a kind of locking device for metal expansion pipe, include metal inner pipe and metal outer pipe, be equipped with in the metal outer pipe by the fixing lining of nut, on metal outer pipe and the lining locking device is installed, described metal inner pipe upper surface is provided with groove, the groove dual-side is that symmetry is evenly equipped with several projections, respective slot position, lining two ends is provided with locating piece and embeds in the groove, lining upper surface respective slot position is provided with the hole, slide block is installed in the hole, be provided with metal derby in the hole, the metal derby upper end is provided with and the corresponding bayonet socket of projection shape, and the side that slide block is relative with locating piece is equipped with counterbore, is provided with spring between the relative counterbore, the corresponding push button connecting hole that is provided with the metal outer pipe upper surface of slide block upper surface is equipped with push button in the push button connecting hole.
Described projection is a ladder type wide at the top and narrow at the bottom, and the spacing between projection and the projection is a metal derby length.
Described metal derby dual-side upper end is provided with the spigot surface parallel with the hypotenuse of adjacent two projections, and metal derby is provided with spigot surface by slide block side lower end.
Described slide block rear end is the arrow type, and the slide block both sides are provided with guide rail, and following corresponding guide rail position is provided with baffle plate on the lining.
Advantage of the present utility model is: interior pipe upper surface is provided with groove, the groove dual-side is evenly equipped with several ladder type projections wide at the top and narrow at the bottom for symmetry, the metal derby upper end is provided with and the corresponding bayonet socket of projection shape, metal derby dual-side upper end is provided with the spigot surface parallel with the hypotenuse of adjacent two projections, when promptly promoting the push button holddown spring, metal derby falls, thereby adjust the telescoping tube collapsing length, because the spacing between projection and the projection is a metal derby length, when unclamping the push button spring reset, metal derby can block projection, also can projection and projection between be stuck, reaching the telescoping tube collapsing length does not have the purpose of blind spot, can afford big active force, prevent the telescoping tube slippage, simple in structure, easy accessibility reduces cost.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the structural representation of metal outer pipe of the present invention and metal inner pipe;
Fig. 3 is the structural representation of a kind of lock-out state of the present invention;
Fig. 4 is the structural representation of the flexible state of the present invention;
Fig. 5 is the structural representation of the another kind of lock-out state of the present invention;
Fig. 6 is the A-A cutaway view of Fig. 2;
Fig. 7 is the B-B cutaway view of Fig. 2;
Fig. 8 is the structural representation of metal derby of the present invention;
Fig. 9 is the structural representation of slide block of the present invention;
Figure 10 is the left view of slide block of the present invention.
Among the figure: 1, outer tube; 2, interior pipe; 3, lining; 4, locking device; 5, groove; 6, projection; 7, locating piece; 8, hole; 9, slide block; 10, metal derby; 11, bayonet socket; 12, counterbore; 13, spring; 14, push button connecting hole; 15, push button; 16, spigot surface; 17, spigot surface; 18 guide rails; 19 baffle plates.
The specific embodiment
Accompanying drawing is non-limiting to disclose a specific embodiment of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
By Fig. 1 to Figure 10 as seen, locking device for metal expansion pipe, include metal outer pipe 1 and metal inner pipe 2, be equipped with in the metal outer pipe 1 by the fixing lining 3 of nut, metal inner pipe 2 upper surfaces are provided with groove 5, groove 5 dual-sides are evenly equipped with several ladder type projections 6 wide at the top and narrow at the bottom for symmetry, lining 3 two ends respective slot 5 positions are provided with locating piece 7 and embed in the groove 5, lining 3 upper surface respective slot 5 positions are provided with hole 8, arrow formula slide block 9 is installed in the hole 8, both sides, arrow formula slide block 9 rear end are provided with guide rail 18, following corresponding guide rail 18 positions are provided with baffle plate 19 on lining 3 holes 8, metal derby 10 is installed in the hole 8, metal derby 10 upper ends are provided with and projection 6 corresponding bayonet sockets 11, spacing between projection 6 and the projection 6 is metal derby 10 length, metal derby 10 dual-sides upper end is provided with the spigot surface parallel with the hypotenuse of adjacent two projections 6 16, metal derby 10 is provided with guiding by slide block 9 side lower ends and 17, slide block 9 and locating piece 7 relative sides are equipped with counterbore 12, be provided with spring 13 between the counterbore 12, the corresponding push button connecting hole 14 that is provided with metal outer pipe 1 upper surface of slide block 9 upper surfaces is equipped with push button 15 in the push button connecting hole 14.
Lock mode one: promote push button 15 and drive the 9 compression springs 13 that slide, slide block 9 moves forward to and withdraws from metal derby 10 fully, because metal derby 10 dual-sides upper end is provided with the spigot surface parallel with the hypotenuse of adjacent two projections 6 16, make metal derby 10 landings in the groove 5 of metal inner pipe 2, it is the collapsing length of adjustable telescoping tube, unclamp push button 15, spring 13 resets and promotes slide block 9, baffle plate 19 withstands slide block 9, the bayonet socket 11 that slides to metal derby 10 on the arrow formula slide block 9 promotion metal derbies 10 blocks projection 6, the telescoping tube locking.
Lock mode two: promote push button 15 and drive the 9 compression springs 13 that slide, slide block 9 moves forward to and withdraws from metal derby 10 fully, because metal derby 10 dual-sides upper end is provided with the spigot surface parallel with the hypotenuse of adjacent two projections 6 16, make metal derby 10 landings in the groove 5 of metal inner pipe 2, it is the collapsing length of adjustable telescoping tube, because the spacing between projection 6 and the projection 6 is metal derby 10 length, unclamp push button 15, spring 13 resets and promotes slide block 9, baffle plate 19 withstands slide block 9, arrow formula slide block 9 promotes to slide to metal derby 10 on the metal derby 10 and is parked between projection 6 and the projection 6, the telescoping tube locking.
As mentioned above, locking device for metal expansion pipe of the present invention reaches the purpose that latched position does not have blind spot.
This locking device for metal expansion pipe removes and can be applicable on the dust collector expansion pipe, also can be applicable on the telescoping tube such as hay mover.
Claims (4)
1. locking device for metal expansion pipe, include metal outer pipe and metal inner pipe, be equipped with in the metal outer pipe by the fixing lining of nut, on metal outer pipe and the lining locking device is installed, it is characterized in that: described metal inner pipe upper surface is provided with groove, the groove dual-side is that symmetry is evenly equipped with several projections, respective slot position, lining two ends is provided with locating piece and embeds in the groove, lining upper surface respective slot position is provided with the hole, slide block is installed in the hole, be provided with metal derby in the hole, the metal derby upper end is provided with and the corresponding bayonet socket of projection shape, and the side that slide block is relative with locating piece is equipped with counterbore, is provided with spring between the relative counterbore, the corresponding push button connecting hole that is provided with the metal outer pipe upper surface of slide block upper surface is equipped with push button in the push button connecting hole.
2. locking device for metal expansion pipe according to claim 1 is characterized in that: described projection is a ladder type wide at the top and narrow at the bottom, and the spacing between projection and the projection is the length of metal derby.
3. locking device for metal expansion pipe according to claim 1 and 2 is characterized in that: described metal derby dual-side upper end is provided with the spigot surface parallel with the hypotenuse of adjacent two projections, and metal derby is provided with spigot surface by slide block side lower end.
4. locking device for metal expansion pipe according to claim 3 is characterized in that: described slide block rear end is the arrow type, and the slide block both sides are provided with guide rail, and following corresponding guide rail position is provided with baffle plate on the lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200333202U CN201001692Y (en) | 2007-01-15 | 2007-01-15 | Metal telescopic pipe locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200333202U CN201001692Y (en) | 2007-01-15 | 2007-01-15 | Metal telescopic pipe locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201001692Y true CN201001692Y (en) | 2008-01-09 |
Family
ID=39037236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200333202U Expired - Lifetime CN201001692Y (en) | 2007-01-15 | 2007-01-15 | Metal telescopic pipe locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201001692Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908106A (en) * | 2011-08-02 | 2013-02-06 | 奥麦克股份公司 | Metal tube for a vacuum cleaner, shaped with an engaging means for a suction tool or for a connection device |
-
2007
- 2007-01-15 CN CNU2007200333202U patent/CN201001692Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908106A (en) * | 2011-08-02 | 2013-02-06 | 奥麦克股份公司 | Metal tube for a vacuum cleaner, shaped with an engaging means for a suction tool or for a connection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070115 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |