CN200952346Y - Cam type positioning pin axle linking mechanism - Google Patents
Cam type positioning pin axle linking mechanism Download PDFInfo
- Publication number
- CN200952346Y CN200952346Y CN 200620107549 CN200620107549U CN200952346Y CN 200952346 Y CN200952346 Y CN 200952346Y CN 200620107549 CN200620107549 CN 200620107549 CN 200620107549 U CN200620107549 U CN 200620107549U CN 200952346 Y CN200952346 Y CN 200952346Y
- Authority
- CN
- China
- Prior art keywords
- ladder
- cam
- alignment pin
- connecting rod
- extension ladder
- 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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- Ladders (AREA)
Abstract
A linkage mechanism used for extension ladder is provided, more particularly relates to a linkage mechanism with cam-type position pin shaft, which can control the contraction process of the extension ladder through simple operation. Aiming at the defects of the prior family-use extension ladder on insecurity and being easy to clamp the hands, the utility model provides a linkage mechanism with cam-type position pin shaft of series products of family-use extension ladder, which can control the contraction process of the extension ladder through simple operation, thereby making the family-use extension ladder be safe and be unlikely to clamp the hands. The utility model comprises a button, an adjusting rod, a cam, a connecting rod, a spring, a position pin, a pin base, a tube ring, a ladder pipe, and a ladder assembly, one end of the connecting rod is arranged on the cam, the position pin and the spring are arranged in the pin base, the rear part of the position pin is connected with the other end of the connecting rod, the pin base is fixed on the tube ring, the tube ring and the pin base are fixed on one end of the ladder assembly, the adjusting rod is connected with the button and is passed the ladder pipe and the cam, the ladder pipe side surface is provide with a position pin hole, and the position is inserted into the position pin hole of the ladder pipe.
Description
Technical field
The utility model is a kind of link gear that is used on the extension ladder, particularly a kind of cam-type alignment pin link gear that is used for can controlling by shirtsleeve operation on the family expenses extension ladder contraction process of extension ladder.
Background technology
The flexible operation of existing family expenses extension ladder be with the hands simultaneously action button control the contraction of extension ladder, it exists weak point dangerous, easy tong when shrinkage operation.
Summary of the invention
Existing it exists weak point dangerous, easy tong to the utility model when the shrinkage operation at existing family expenses extension ladder, a kind of cam-type alignment pin link gear that is used for can controlling by shirtsleeve operation on the family expenses extension ladder series of products contraction process of extension ladder is provided, make the family expenses extension ladder when shrinkage operation safety, can not tong.
The technical solution adopted in the utility model is finished in the following way: a kind of cam-type alignment pin link gear that is used on the extension ladder product of the utility model, it comprises knob, adjusting rod, cam, connecting rod, spring, alignment pin, key seat, pipeloop, ladder pipe and ladder, one end of connecting rod is contained on the cam, alignment pin and spring are contained in the key seat, the afterbody of alignment pin is connected with the other end of connecting rod, key seat is fixed on the pipeloop, pipeloop and key seat are fixed on an end of ladder, adjusting rod is connected with knob and passes ladder and manage and cam, there is dowel hole ladder pipe side, under the effect of spring, alignment pin penetrates in the dowel hole of terraced pipe and plays the role of positioning.
Extension ladder of the present utility model is housed compares with existing extension ladder, have when shrinkage operation safety, can not tong and characteristics easy and simple to handle.
Description of drawings
Fig. 1 is the structural representation of the utility model when extension ladder extends.
Fig. 2 is the structural representation of the utility model when extension ladder shrinks.
Fig. 3 is the structural representation when extension ladder of the present utility model being housed being in contraction state.
Fig. 4 is the structural representation when extension ladder of the present utility model being housed being in elongation state.
The specific embodiment
Contrast accompanying drawing below, the utility model is described in further detail by embodiment.
With reference to accompanying drawing 1 and accompanying drawing 4, a kind of cam-type alignment pin link gear that is used on the extension ladder product, it comprises knob 6, adjusting rod 9, cam 7, connecting rod 5, spring 4, alignment pin 2, key seat 3, pipeloop 1, ladder pipe 11 and ladder 10, one end of connecting rod 5 is connected on the cam 7 by screw 8, alignment pin 2 is contained in the key seat 3 with spring 4, the afterbody of alignment pin 2 is connected with the other end of connecting rod 5, key seat 3 is fixed on the pipeloop 1, pipeloop 1 and key seat 3 are fixed on an end of ladder 10, adjusting rod 9 is connected with knob 6 and passes ladder pipe 11 and cam 7, there is dowel hole ladder pipe 11 sides, and under the effect of spring 4, alignment pin 2 penetrates in the dowel hole of ladder pipe 11.
When extension ladder shrinks, with a hand steered terraced pipe 11 of a last joint that firmly will shrink, the another hand rotates 45 °～90 ° clockwise or counterclockwise by knob 6, by cam 7 drivening rods 5, pulling alignment pin 2, spring 4 inwardly shrink alignment pin 2 two-way simultaneouses, make and withdraw from the locating hole of alignment pin 2 from the ladder pipe 11, ladder pipe 11 is under action of gravity, and knob 6 is rotated in ladder 10 two ends free-fallings successively from the bottom up.
When extension ladder drew high, alignment pin 2 was under the effect of spring 4, and alignment pin 2 penetrates in the locating hole of ladder pipe 11, and ladder pipe 11 is automatically locked with pipeloop 1.
Claims (2)
1, a kind of cam-type alignment pin link gear, it is characterized in that this cam-type alignment pin link gear comprises knob (6), adjusting rod (9), cam (7), connecting rod (5), spring (4), alignment pin (2), key seat (3), pipeloop (1), ladder pipe (11) and ladder (10), one end of connecting rod (5) is connected on the cam (7), alignment pin (2) is contained in the key seat (3) with spring (4), the afterbody of alignment pin (2) is connected with the other end of connecting rod (5), key seat (3) is fixed on the pipeloop (1), pipeloop (1) and key seat (3) are fixed on an end of ladder (10), adjusting rod (9) is connected with knob (6) and passes ladder and manage (11) and cam (7), there is dowel hole ladder pipe (11) side, under the effect of spring (4), alignment pin (2) penetrates in the dowel hole of ladder pipe (11).
2, cam-type alignment pin link gear according to claim 1 is characterized in that an end of connecting rod (5) is connected on the cam (7) by screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107549 CN200952346Y (en) | 2006-09-03 | 2006-09-03 | Cam type positioning pin axle linking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107549 CN200952346Y (en) | 2006-09-03 | 2006-09-03 | Cam type positioning pin axle linking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200952346Y true CN200952346Y (en) | 2007-09-26 |
Family
ID=38810647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620107549 Expired - Fee Related CN200952346Y (en) | 2006-09-03 | 2006-09-03 | Cam type positioning pin axle linking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200952346Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019094329A1 (en) * | 2017-11-08 | 2019-05-16 | Core Distribution, Inc. | Locking assembly for a telescoping ladder |
| CN111255369A (en) * | 2020-01-19 | 2020-06-09 | 泉州潘大侠网络科技有限公司 | Portable supplementary supporting mechanism who overhauls with staircase of hydraulic engineering |
| US10731413B2 (en) | 2014-12-02 | 2020-08-04 | Core Distribution, Inc. | Foldable ladder |
| US10753149B2 (en) | 2008-08-22 | 2020-08-25 | Core Distribution, Inc. | Extendable / retractable ladder |
| US11795760B2 (en) | 2019-10-24 | 2023-10-24 | Core Distribution, Inc. | Ladder tripod assembly and system |
-
2006
- 2006-09-03 CN CN 200620107549 patent/CN200952346Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10753149B2 (en) | 2008-08-22 | 2020-08-25 | Core Distribution, Inc. | Extendable / retractable ladder |
| US10731413B2 (en) | 2014-12-02 | 2020-08-04 | Core Distribution, Inc. | Foldable ladder |
| WO2019094329A1 (en) * | 2017-11-08 | 2019-05-16 | Core Distribution, Inc. | Locking assembly for a telescoping ladder |
| US11174678B2 (en) | 2017-11-08 | 2021-11-16 | Core Distribution, Inc. | Locking assembly for a telescoping ladder |
| US11795760B2 (en) | 2019-10-24 | 2023-10-24 | Core Distribution, Inc. | Ladder tripod assembly and system |
| CN111255369A (en) * | 2020-01-19 | 2020-06-09 | 泉州潘大侠网络科技有限公司 | Portable supplementary supporting mechanism who overhauls with staircase of hydraulic engineering |
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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: 20070926 Termination date: 20100903 |