CN2903525Y - Multi section bar, expansion locking apparatus - Google Patents
Multi section bar, expansion locking apparatus Download PDFInfo
- Publication number
- CN2903525Y CN2903525Y CN 200620102866 CN200620102866U CN2903525Y CN 2903525 Y CN2903525 Y CN 2903525Y CN 200620102866 CN200620102866 CN 200620102866 CN 200620102866 U CN200620102866 U CN 200620102866U CN 2903525 Y CN2903525 Y CN 2903525Y
- Authority
- CN
- China
- Prior art keywords
- cane
- locking device
- expander roll
- expansion locking
- spring
- 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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- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
The utility model relates to a locking tightly apparatus in expansion pattern with multi-burl rod and wand, comprising an expander roll, a recoil preventing piece, an expanding body, an inner cone and a spring, wherein the forehead of the expanding roll is equipped with a screw segment processed thereof, and the screw segment is spirally connected with a nut installed in the expanding body for linking and driving the expanding body to move along the synchronizing shaft, and the lengthened inner cone freely hitches on the expanding rod of the rear part of the screw segment with the smaller end toward the expanding body, while the forehead of the screw segment of the expanding rod is equipped with a smooth rod part which is provided with the spring and the recoil preventing piece formed by a gasket and a clamping spring arranged on the ends of the spring. The utility model has the advantages of good effect of tightly locking, long service life, and the like.
Description
Technical field
The utility model relates to a kind of locking device, is meant a kind of expansion locking device that is applicable to more piece alpin-stock, ski pole, walking cane and other cylindricality more piece cane, bar especially.
Background technique
At present, traditional expansion locking mechanism mainly with external set screw nut as retaining spare, drive the breathing of the body that expands with moving up and down of internal cones.Adopt this structure, when bloated body is retracted to a certain degree, can produce deadlock phenomenon, as when reexpanding, will skidding occur and can't expand.In addition, this structure mainly be rely on internal cones moving up and down and friction causes bloated volumetric expansion, make because of internal cones adopts plastics, through friction repeatedly, its working life can be influenced.Moreover traditional internal cones length is less, thereby the point of contact of itself and bloated body is less, thereby lifting surface area reduces, and causes life-span of the body that expands to reduce and locking intensity reduces.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of locking effect good at above-mentioned prior art present situation, the more piece bar of long service life, cane expansion locking device.
It is that more piece bar, cane expansion locking device by following structure realized that the utility model solves the problems of the technologies described above: it comprises an expander roll, retaining spare, bloated body and internal cones are housed on the expander roll, it is characterized in that described expander roll front portion is processed with a thread section, be bolted with a nut on the thread section, and this nut is contained in the body that expands and moves axially synchronously with the bloated body that links, and described internal cones is arranged on the expander roll at thread section rear portion towards bloated body with small end.
There is one section smooth shank portions described expander roll thread section front portion, is equipped with one on this smooth shank portions by spring and be located at the jump ring at spring two and the retaining spare that pad constitutes.
Described internal cones is rotatable and is positioned on one section expander roll at described thread section rear portion, and the length of described internal cones lengthening.
Described bloated body profile is roughly cylindrical, be provided with in the front portion for nut set location usefulness opening and with the opening slot that vertically is provided with along cylinder of open communication, and be provided with some vertical convex tendons in the outer wall of the body that expands.And also some calvus can have been extended in described bloated body afterbody.
Compared with prior art, advantage of the present utility model is: owing to adopt built-in metal traveling nut to drive the body that expands, make expand body and the clutch of internal cones nature by more piece bar provided by the utility model, cane expansion locking device, do not have the friction phenomenon; And behind the length of the internal cones lengthening, its area of contact is increased, thereby lifting surface area also increases, thereby prolonged the working life of bloated body and internal cones, and can play good locking effect.And a no thread section is left at the top of expander roll, when bloated body is retracted to a certain degree, under continuation is stressed, will dally, and can be not locked.The top is provided with the turriform spring simultaneously, and when needs reexpanded, traveling nut can enter working state at once.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the utility model embodiment's a perspective exploded view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the expansion locking device of the utility model more piece cane, bar mainly is to be constituted by expander roll 1, the institutes such as body 8, internal cones 3, traveling nut 4 and retaining spare of expanding, wherein the top of expander roll 1 is a bit of smooth shank portions 12, be respectively equipped with one is used for card and establishes the draw-in groove 11 and a shaft shoulder of jump ring in smooth shank portions two, the turriform spring 6 that constitutes retaining spare is enclosed within on this smooth shank portions 12, and two is provided with a described jump ring 7 and a pad 5 respectively.Expander roll 1 is one section thread section 13 behind shoulder block, is bolted with described traveling nut 4 on it, and these nut 4 usefulness metallic material are made.This nut 4 is arranged on again in the body 8 that expands simultaneously, moves axially synchronously to drive the body that expands.
Described bloated body 8 is a plastic parts, and profile is roughly cylindrical, is arranged with two openings 81 in the front portion of this bloated body, and the traveling nut 4 that is built in the body that expands passes through this two openings axially locating.Expand body 8 along cylinder be vertically arranged with two respectively with the opening slot 82 of described two open communication, make it to form two outside bloated sheets of distending under the internal cones effect by this two opening slot.The outer wall of bloated body is provided with some vertical convex tendons 83, plays the effect of the locking effect between enhancing and bar, cane inwall.The afterbody of bloated body has extended some outside open calvus 84, and this calvus also plays the effect that improves locking effect equally.
Described internal cones 3 is located on the expander roll behind the thread section, can rotate relative to expander roll.Two of this section expander roll 15 is respectively equipped with one and is used for card and establishes the draw-in groove 14 and a shaft shoulder of jump ring, internal cones is enclosed within on this section expander roll towards bloated body sky with small end, and two is provided with a described jump ring 9 and a pad 2 respectively, by this jump ring and shaft shoulder axially locating on this section expander roll.Simultaneously, be the area of contact of increase with bloated body, the internal cones that the length of this internal cones is more traditional is long, can increase lifting surface area like this, thereby can prolong the working life of expand body and internal cones, and improves locking effect.
During use, forward rotation expander roll 1, in expander roll 1 turning effort in traveling nut 4, the bloated body 8 of traveling nut 4 interlocks is moved up together, and along with moving on the body 8 that expands, the body 8 that expands opens under the effect of internal cones 3 gradually, is close to bar, cane inwall and reaches the purpose of locking, in this process, the turriform spring 6 that is contained in the expander roll top returns back to free state gradually by compressive state at first; Otherwise, if backward rotation expander roll 1, then the traveling nut 4 interlocks body 8 that expands moves down together, former open bloated body is shunk gradually and returns back to reset condition, thereby the locking between releasing and bar, cane inwall, locate the turriform spring 6 of free state and locate compressive state heavily again this moment.
Claims (7)
1, a kind of more piece bar, cane expansion locking device, comprise an expander roll (1), retaining spare, bloated body (8) and internal cones (3) are housed on the expander roll, it is characterized in that: described expander roll (1) front portion is processed with a thread section (13), be bolted with a nut (4) on the thread section, and this nut (4) is contained in the bloated body (8) and moves axially synchronously with the bloated body that links, and described internal cones (3) is arranged on the expander roll (15) at thread section rear portion towards bloated body (8) with small end.
2, more piece bar as claimed in claim 1, cane expansion locking device, it is characterized in that: there is one section smooth shank portions (12) described expander roll thread section (13) front portion, is equipped with one on this smooth shank portions by spring (6) and be located at the jump ring (7) at spring two and retaining spare that pad (5) constitutes.
3, more piece bar as claimed in claim 1 or 2, cane expansion locking device is characterized in that: described internal cones (3) is rotatable and is positioned on one section expander roll (15) at described thread section rear portion, and the length of described internal cones (3) lengthening.
4, more piece bar as claimed in claim 1 or 2, cane expansion locking device, it is characterized in that: described bloated body (8) profile is roughly cylindrical, be provided with in the front portion for nut (4) set location usefulness opening (81) and with the opening slot (82) that vertically is provided with along cylinder of open communication, and be provided with some vertical convex tendons (83) in the outer wall of the body that expands.
5, more piece bar as claimed in claim 4, cane expansion locking device is characterized in that: described bloated body afterbody has also extended some calvus (84).
6, more piece bar as claimed in claim 2, cane expansion locking device, it is characterized in that: the spring of described retaining spare is selected the turriform spring for use.
7, more piece bar as claimed in claim 1, cane expansion locking device, it is characterized in that: described nut (4) is made with metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102866 CN2903525Y (en) | 2006-04-19 | 2006-04-19 | Multi section bar, expansion locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102866 CN2903525Y (en) | 2006-04-19 | 2006-04-19 | Multi section bar, expansion locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903525Y true CN2903525Y (en) | 2007-05-23 |
Family
ID=38078936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620102866 Expired - Fee Related CN2903525Y (en) | 2006-04-19 | 2006-04-19 | Multi section bar, expansion locking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903525Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489541A (en) * | 2013-05-28 | 2014-01-01 | 河北安电电力器材有限公司 | Telescopic electrical insulation rod capable of rotating and achieving self locking |
| CN101772363B (en) * | 2007-08-07 | 2014-02-12 | 民圣精密株式会社 | Fixing device of sports stick with variable length |
| CN104386169A (en) * | 2014-11-20 | 2015-03-04 | 太仓市哲泰天产品设计有限公司 | Automatic seat tube locking device of bicycle |
-
2006
- 2006-04-19 CN CN 200620102866 patent/CN2903525Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772363B (en) * | 2007-08-07 | 2014-02-12 | 民圣精密株式会社 | Fixing device of sports stick with variable length |
| CN103489541A (en) * | 2013-05-28 | 2014-01-01 | 河北安电电力器材有限公司 | Telescopic electrical insulation rod capable of rotating and achieving self locking |
| CN103489541B (en) * | 2013-05-28 | 2016-01-13 | 河北安电电力器材有限公司 | A kind of flexible, rotate, self-locking electric insulation bar |
| CN104386169A (en) * | 2014-11-20 | 2015-03-04 | 太仓市哲泰天产品设计有限公司 | Automatic seat tube locking device of bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20070523 Termination date: 20120419 |