CN104632869A - Locking mechanism of foldable connecting rod - Google Patents
Locking mechanism of foldable connecting rod Download PDFInfo
- Publication number
- CN104632869A CN104632869A CN201410741105.2A CN201410741105A CN104632869A CN 104632869 A CN104632869 A CN 104632869A CN 201410741105 A CN201410741105 A CN 201410741105A CN 104632869 A CN104632869 A CN 104632869A
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- CN
- China
- Prior art keywords
- connecting rod
- spring
- snap close
- lockable mechanism
- solid
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Abstract
The invention provides a locking mechanism of a foldable connecting rod. The locking mechanism comprises a handle switch, a rotating body with a bump, a pull rod with a first spring and a lock catch with a second spring, wherein the handle switch is fixedly connected with the end part of the rotating body; the rotating surface of the rotating body is fixedly connected with one end of the pull rod; when the rotating body rotates, the pull rod is driven to compress the first spring; the lock catch is arranged on a rotation track of the bump; the second spring is arranged on the other side surface, opposite to the bump, of the lock catch; when the bump touches the lock catch, the lock catch is driven to compress the second spring. The locking mechanism is stable and reliable in structure and convenient and rapid to operate.
Description
Technical field
The present invention relates to a kind of lockable mechanism of folding connecting rod.
Background technique
At present, the lockable mechanism of existing folding connecting rod is comparatively simple, and easily lost efficacy or damaged, reliability of structure is lower.
Summary of the invention
Technical problem to be solved by this invention is, provides the lockable mechanism that a kind of structure is reliable, easy to use.
In order to solve the problems of the technologies described above, the invention provides a kind of lockable mechanism of folding connecting rod, wherein, described folding connecting rod comprises first connecting rod and second connecting rod, described first connecting rod and second connecting rod hinged, described lockable mechanism is arranged on the rounded end of described first connecting rod.Described lockable mechanism comprise bat-handle switch, be provided with projection solid of rotation, cover have the pull bar of the first spring and be provided with the snap close of the second spring; Described bat-handle switch connects with described solid of rotation end winding support; The turning surface of described solid of rotation is fixedly connected with described pull bar one end, when solid of rotation rotates, drives described first spring of pull bar compression; Described snap close is arranged in the rotary motion trace of described projection, and described second spring is positioned at the another side of described snap close relative to described projection, when described projection encounters described snap close, drives described second spring of snap close compression.
As the improvement of technique scheme, the rounded end of described second connecting rod is provided with connection fixture, and described connection fixture is rotationally connected by hinge part and described first connecting rod, and described connection fixture is also provided with the latch be fastened with described snap close.
As the improvement of technique scheme, the rounded end of described second connecting rod is built-in with the push rod that one end is connected with the 3rd spring, and the other end of described push rod peaks at described first connecting rod upper end and compresses described 3rd spring.
Compared with prior art, the lockable mechanism of a kind of folding connecting rod of the present invention, its structural stability is reliable, convenient to operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the embodiment of the present invention, be briefly described to the accompanying drawing of embodiment below.
Fig. 1 is the structural representation of an embodiment of the lockable mechanism that the invention provides a kind of folding connecting rod;
Fig. 2 is the structural representation of the released state of Fig. 1 embodiment.
Embodiment
The specific embodiment of the present invention is further described below in conjunction with accompanying drawing.
Shown in Fig. 1, Fig. 2, one embodiment of the invention, a kind of lockable mechanism of folding connecting rod, wherein, described folding connecting rod comprises first connecting rod 1 and second connecting rod 2, and described first connecting rod 1 is hinged with second connecting rod 2, and described lockable mechanism is arranged on the rounded end of described first connecting rod 1.Described lockable mechanism comprises bat-handle switch 31, is provided with the solid of rotation 32 of projection 321, cover has the pull bar 33 of the first spring 34 and is provided with the snap close 35 of the second spring 36; Described bat-handle switch 31 is connected with described solid of rotation 32 end winding support; The turning surface of described solid of rotation 32 is fixedly connected with described pull bar 33 one end, when solid of rotation 32 rotates, drives pull bar 33 to compress described first spring 34; Described snap close 35 is arranged in the rotary motion trace of described projection 321, and described second spring 36 is positioned at the another side of described snap close 35 relative to described projection 321, when described projection 321 encounters described snap close 35, drives snap close 35 to compress described second spring 36.Further, the rounded end of described second connecting rod 2 is provided with connection fixture 37, and described connection fixture 37 is rotationally connected by hinge part and described first connecting rod 1, and described connection fixture 37 is also provided with the latch 371 be fastened with described snap close 35.This latch 371 tilts to stretch out along the rotary motion trace of connection fixture 37, makes to realize unidirectional fastening between itself and the card division 351 of snap close 35.In an embodiment, described pull bar 33 is T-type structure, and the first spring 34 is placed on the bar portion of pull bar 33, and between the head being compressed in pull bar 33 and mounting base; The swingable several angle of described snap close 35, the card division 351 that this angle must meet snap close 35 can depart from the latch 371 of connection fixture 37 completely.
During concrete enforcement, twisting handle switch 31, drive solid of rotation 32 to rotate (solid of rotation 32 rotarily drives pull bar 33 and compresses the first spring 34), make the projection 321 on solid of rotation 32 contact with snap close 35 and compress the second spring 36, connection fixture 37 loses snap close 35 and retrains; Release handle switch 31, first spring 34 loses external force constraint, drives pull bar 33 to reset, makes projection 321 and bat-handle switch 31 automatically revert to initial position; Second spring 36, also along with the disengaging of projection 321, makes snap close 35 automatically revert to initial position.
More preferably, the rounded end of described second connecting rod 2 is built-in with the push rod 39 that one end is connected with the 3rd spring 38, and the other end of described push rod 39 peaks at described first connecting rod 1 upper end and compresses described 3rd spring 38.During unblock, because the 3rd spring 38 is in compressive state, losing snap close 35 constraint makes the 3rd spring 38 discharge and promote push rod 39, the latch 371 of connection fixture 37 is made to be separated certain distance with the card division 351 of snap close 35, during to prevent release handle switch 31, latch 371 and card division 351 fasten again, and when resuming work state, the 3rd spring 38 also plays buffer function simultaneously.
Above disclosedly be only preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (3)
1. the lockable mechanism of a folding connecting rod, described folding connecting rod comprises first connecting rod and second connecting rod, described first connecting rod and second connecting rod hinged, described lockable mechanism is arranged on the rounded end of described first connecting rod, it is characterized in that, described lockable mechanism comprise bat-handle switch, be provided with projection solid of rotation, cover have the pull bar of the first spring and be provided with the snap close of the second spring; Described bat-handle switch connects with described solid of rotation end winding support; The turning surface of described solid of rotation is fixedly connected with described pull bar one end, when solid of rotation rotates, drives described first spring of pull bar compression; Described snap close is arranged in the rotary motion trace of described projection, and described second spring is positioned at the another side of described snap close relative to described projection, when described projection encounters described snap close, drives described second spring of snap close compression.
2. the lockable mechanism of folding connecting rod as claimed in claim 1, it is characterized in that, the rounded end of described second connecting rod is provided with connection fixture, and described connection fixture is rotationally connected by hinge part and described first connecting rod, and described connection fixture is also provided with the latch be fastened with described snap close.
3. the lockable mechanism of folding connecting rod as claimed in claim 2, is characterized in that, the rounded end of described second connecting rod is built-in with the push rod that one end is connected with the 3rd spring, and the other end of described push rod peaks at described first connecting rod upper end and compresses described 3rd spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741105.2A CN104632869A (en) | 2014-11-30 | 2014-11-30 | Locking mechanism of foldable connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741105.2A CN104632869A (en) | 2014-11-30 | 2014-11-30 | Locking mechanism of foldable connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632869A true CN104632869A (en) | 2015-05-20 |
Family
ID=53211974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410741105.2A Pending CN104632869A (en) | 2014-11-30 | 2014-11-30 | Locking mechanism of foldable connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632869A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955240A (en) * | 1975-04-05 | 1976-05-11 | Firma Wilhelm Bahmuller, Maschinen- Und Apparatebau | Multi-position safety lock joint, particularly for folding ladders |
| US4645371A (en) * | 1986-05-01 | 1987-02-24 | Wang Chien Yuan | Safety joint mechanism, particularly for folding ladders |
| US5142739A (en) * | 1991-07-02 | 1992-09-01 | Palhood Industries Corporation | Lockable hinge joint for folding ladders |
| JP2009507147A (en) * | 2005-09-01 | 2009-02-19 | ジュリウス ブルム ゲゼルシャフト エム．ビー．エイチ． | Structure with hinges |
| CN203067525U (en) * | 2013-01-25 | 2013-07-17 | 湖南信息职业技术学院 | Spring torque buffer |
-
2014
- 2014-11-30 CN CN201410741105.2A patent/CN104632869A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955240A (en) * | 1975-04-05 | 1976-05-11 | Firma Wilhelm Bahmuller, Maschinen- Und Apparatebau | Multi-position safety lock joint, particularly for folding ladders |
| US4645371A (en) * | 1986-05-01 | 1987-02-24 | Wang Chien Yuan | Safety joint mechanism, particularly for folding ladders |
| US5142739A (en) * | 1991-07-02 | 1992-09-01 | Palhood Industries Corporation | Lockable hinge joint for folding ladders |
| JP2009507147A (en) * | 2005-09-01 | 2009-02-19 | ジュリウス ブルム ゲゼルシャフト エム．ビー．エイチ． | Structure with hinges |
| CN203067525U (en) * | 2013-01-25 | 2013-07-17 | 湖南信息职业技术学院 | Spring torque buffer |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
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| WD01 | Invention patent application deemed withdrawn after publication |