CN204081972U - Fold concertina-wise ladder - Google Patents
Fold concertina-wise ladder Download PDFInfo
- Publication number
- CN204081972U CN204081972U CN201420581869.5U CN201420581869U CN204081972U CN 204081972 U CN204081972 U CN 204081972U CN 201420581869 U CN201420581869 U CN 201420581869U CN 204081972 U CN204081972 U CN 204081972U
- Authority
- CN
- China
- Prior art keywords
- telescoping tube
- latch
- crosspiece
- spring
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
- E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
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- Ladders (AREA)
Abstract
The utility model discloses a kind of fold concertina-wise ladder, comprise some mutually sheathed section of ladders, left and right locking mechanism, section of ladder comprises left and right telescoping tube (4), pipe box (8), crosspiece (2), crosspiece (2) is fixed on left and right telescoping tube (4) by pipe box (8), and left and right locking mechanism is arranged in crosspiece (2); Left and right locking mechanism comprises Connection Block (9), latch (10), spring (11), spring base (12), push button (3), spring (11) is arranged on spring base (12), latch (10) can be arranged on Connection Block (9) horizontally slidingly, latch (10) correspondence is inserted on the pin hole of left and right telescoping tube (4), its afterbody coordinates with spring (11), and push button (3) is fixed through crosspiece (2) and latch (10); Described upper joint telescoping tube (1) is provided with the lockhole (5) corresponding with latch (10), and the below of lockhole (5) is provided with boss (6).After adopting this structure, have simple and reasonable, produce easy for installation, firm and reliable connection, Anti-extrusion are effective, telescoping tube intensity advantages of higher.
Description
Technical field
The utility model relates to a kind of folding ladder, particularly a kind of fold concertina-wise ladder.
Background technology
As everyone knows, the ladder that tradition uses is generally wooden ladder or bamboo ladder, and through being usually used in the maintenance such as home dwelling, office space, farm, factory or ascending a height of safeguarding, ladder is collected in somewhere when not using.Longer ladder can allow people arrive higher height, but is but not easy to carrying and can takies more space when collection, and ladder just can extend by telescopic ladder in use, and is got up by ladder collapses when collecting.But, the multiplex mode of rolling convex tendon or concave bar of existing extension ladder left and right locking mechanism anti-taking off structure, be used for fastening the effect that sheath reaches Anti-extrusion, owing to decreasing the intensity of telescoping tube material after employing said structure, there is the fatal defects that rupturing easily appears in telescoping tube.Also have and adopt the mode filling in plastic sheath to reach the effect of Anti-extrusion, but the problem of assembling difficulty can be caused.Secondly, in telescopic process bottom telescoping tube between friction, the general mode adopting pipe close and pipe lid, but the pipe close of existing structure pipe close when assembling easily is deviate from.Adopt the mode of pipe lid due to limit ligament uneven, there is the bad phenomenon of decrease speed faster or slower, and the phenomenon of breaking due to the too thin easy generation of wall thickness.For this reason, many manufacturers and knowledgeable people are studied for the problems referred to above and develop, but not yet have more rational product to emerge so far.
Summary of the invention
For overcome existing fold concertina-wise ladder exist above-mentioned disadvantage, the purpose of this utility model be to provide a kind of simple and reasonable, produce easy for installation, that firm and reliable connection, Anti-extrusion are effective, telescoping tube intensity is high fold concertina-wise ladder.
The utility model solves the technical scheme that its technical problem adopts, it comprises some mutually sheathed section of ladders, left and right locking mechanism, described section of ladder comprises left and right telescoping tube, pipe box, crosspiece, and crosspiece is fixed on the telescoping tube of left and right by pipe box, and left and right locking mechanism is arranged in crosspiece; Described left and right locking mechanism comprises Connection Block, latch, spring, spring base, the push button fixing with pipe box, spring base is fixed on Connection Block, spring is arranged on spring base, latch can be arranged on Connection Block horizontally slidingly, the head of latch is through pipe box and correspondence is inserted on the pin hole of left and right telescoping tube, its afterbody coordinates with spring, and push button is fixed through crosspiece and latch; A described upper joint telescoping tube is provided with the lockhole corresponding with latch, and the below of lockhole is provided with boss.
Further scheme of the present utility model, the bottom of described left and right telescoping tube is fixed with pipe close, pipe close is provided with centring ring and lower guide collar, upper centring ring is provided with fixing rib and protrudes fixed part, protrude fixed part and be provided with elastic buckles, the both sides of elastic buckles are provided with notch, left and right telescoping tube is provided with fixing hole, elastic buckles is buckled on fixing hole, the lower surface of left and right telescoping tube withstands on the end face of lower guide collar, fixing rib and left and right telescoping tube inwall tight fit, time folding, the pipe close end face of a upper joint telescoping tube withstands on the end face of centring ring.
Further scheme of the present utility model, described pipe close is provided with the skew notch of dodging latch.
After adopting said structure, the utility model has the following advantages and effect: one is owing to being provided with the lockhole corresponding with latch on a upper joint telescoping tube, the below of lockhole is provided with boss, in a upper joint telescoping tube pull-up process, latch is subject to the stop of boss, latch inserts lockhole under the action of the spring automatically, ensures that latch reliably can insert lockhole in drawing process, thus solve connect unreliable, easily deviate from and assemble difficult problem; Two is that upper centring ring is provided with fixing rib and elastic buckles, and elastic buckles is buckled on fixing hole because pipe close is provided with upper centring ring and lower guide collar, and the lower surface of left and right telescoping tube withstands on the end face of lower guide collar, and assembling is simple, connects reliable.
Accompanying drawing explanation
Fig. 1 is fit structure schematic diagram of the present utility model.
Fig. 2 be the utility model locking mechanism unlocked time structural representation.
Fig. 3 is the structural representation of the utility model locking mechanism when locking.
Fig. 4 is the cooperation schematic diagram of the utility model lockhole and boss.
Fig. 5 is the perspective view of the utility model pipe close.
Fig. 6 be the utility model pipe close with telescoping tube coordinate schematic diagram.
Wherein, a joint telescoping tube on 1,2 crosspieces, 3 push buttons, about 4 telescoping tubes, 5 lockholes, 6 boss, 7 pipe closes, 8 pipe boxes, 9 Connection Blocks, 10 latches, 11 springs, 12 spring bases, centring ring on 13,14 fixing ribs, 15 times guide collar, 16 skew notches, 17 protrude fixed part, 18 elastic buckles, 19 notches, 20 end faces.
Detailed description of the invention
Shown in Fig. 1 to Fig. 6, for the specific embodiments of a kind of fold concertina-wise ladder of the utility model, it comprises some mutually sheathed section of ladders, left and right locking mechanism, described section of ladder comprises left and right telescoping tube 4, pipe box 8, crosspiece 2, crosspiece 2 is fixed on left and right telescoping tube 4 by pipe box 8, and left and right locking mechanism is arranged in crosspiece 2, described left and right locking mechanism comprises the Connection Block 9 fixing with pipe box 8, latch 10, spring 11, spring base 12, push button 3, certain Connection Block 9 also can be structure as a whole with pipe box 8, spring base 1 both can be fixed on Connection Block 9, also can be structure as a whole with Connection Block 9, spring 11 is arranged on spring base 12, latch 10 can be arranged on Connection Block 9 horizontally slidingly, latch 10 is provided with back-up ring, ensure that latch 10 can only slide in certain scope, the head of latch 10 is through pipe box 8 and correspondence is inserted on the pin hole of left and right telescoping tube 4, its afterbody coordinates with spring 11, push button 3 is fixed through crosspiece 2 and latch 10, a described upper joint telescoping tube 1 is provided with the lockhole 5 corresponding with latch 10, the below of lockhole 5 is provided with boss 6, in a upper joint telescoping tube 1 pull-up process, latch 10 is subject to the stop of boss 6, latch 10 automatically inserts lockhole 5 under the effect of spring 11, ensure can not deviate from a upper joint telescoping tube 1 pull-up process, also solve the problem of existing structure bad mechanical strength, assembling difficulty simultaneously.
The bottom of described left and right telescoping tube 4 is fixed with pipe close 7, pipe close 7 is provided with centring ring 13 and lower guide collar 15, upper centring ring 13 is provided with fixing rib 14 and protrudes fixed part 17, protrude fixed part 17 and be provided with elastic buckles 18, the both sides of elastic buckles 18 are provided with notch 19, left and right telescoping tube 4 is provided with fixing hole 21, during assembling, elastic buckles 18 is buckled on fixing hole 21, the lower surface of left and right telescoping tube 4 withstands on the end face 20 of lower guide collar 15, ensure that pipe close 7 fixedly secures in the bottom of telescoping tube 4 after installing, fixing rib 14 and protrusion fixed part 17 are tightly fixed motionless with left and right telescoping tube 4 inwall, time folding, pipe close 7 end face of a upper joint telescoping tube 1 withstands on the end face of centring ring 13.
In order to ensure that in telescopic process the latch 10 that pipe close 7 is not protruded affects, described pipe close 7 is provided with the skew notch 16 of dodging latch 10, and the inclined-plane of skew notch 16 can promote latch 10 and bounce back.
The above; just an embodiment of the present utility model, not makes any pro forma restriction to the utility model, is not departing from the technical solution of the utility model basis; done simple modification, equivalent variations or modification, all fall into protection domain of the present utility model.
Claims (3)
1. a fold concertina-wise ladder, comprise some mutually sheathed section of ladders, left and right locking mechanism, it is characterized in that: described section of ladder comprises left and right telescoping tube (4), pipe box (8), crosspiece (2), crosspiece (2) is fixed on left and right telescoping tube (4) by pipe box (8), and left and right locking mechanism is arranged in crosspiece (2), described left and right locking mechanism comprises the Connection Block (9) fixing with pipe box (8), latch (10), spring (11), spring base (12), push button (3), spring base (12) is fixed on Connection Block (9), spring (11) is arranged on spring base (12), latch (10) can be arranged on Connection Block (9) horizontally slidingly, the head of latch (10) is through pipe box (8) and correspondence is inserted on the pin hole of left and right telescoping tube (4), its afterbody coordinates with spring (11), push button (3) is fixed through crosspiece (2) and latch (10), described upper joint telescoping tube (1) is provided with the lockhole (5) corresponding with latch (10), and the below of lockhole (5) is provided with boss (6).
2. fold concertina-wise is terraced according to claim 1, it is characterized in that: the bottom of described left and right telescoping tube (4) is fixed with pipe close (7), pipe close (7) is provided with centring ring (13) and lower guide collar (15), upper centring ring (13) is provided with fixing rib (14) and protrudes fixed part (17), protrude fixed part (17) and be provided with elastic buckles (18), the both sides of elastic buckles (18) are provided with notch (19), left and right telescoping tube (4) is provided with fixing hole (21), elastic buckles (18) is buckled on fixing hole (21), the lower surface of left and right telescoping tube (4) withstands on the end face (20) of lower guide collar (15), fixing rib (14) and left and right telescoping tube (4) inwall tight fit, time folding, pipe close (7) end face of upper joint telescoping tube (1) withstands on the end face of centring ring (13).
3. fold concertina-wise is terraced according to claim 2, it is characterized in that: described pipe close (7) is provided with the skew notch (16) of dodging latch (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581869.5U CN204081972U (en) | 2014-10-10 | 2014-10-10 | Fold concertina-wise ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420581869.5U CN204081972U (en) | 2014-10-10 | 2014-10-10 | Fold concertina-wise ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204081972U true CN204081972U (en) | 2015-01-07 |
Family
ID=52174703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420581869.5U Expired - Fee Related CN204081972U (en) | 2014-10-10 | 2014-10-10 | Fold concertina-wise ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204081972U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653094A (en) * | 2015-01-23 | 2015-05-27 | 余登会 | Upright high-voltage line maintaining ladder |
| CN104727739A (en) * | 2015-03-09 | 2015-06-24 | 余登会 | Erecting ladder for fire fighting |
| CN104752986A (en) * | 2015-02-24 | 2015-07-01 | 徐正昌 | High voltage dedicated circuit ladder |
| CN104763320A (en) * | 2015-03-09 | 2015-07-08 | 余登会 | A vertical ladder for fire fighting |
| CN104763317A (en) * | 2015-03-01 | 2015-07-08 | 余登会 | Firefighting upright special-purpose ladder |
| CN107461141A (en) * | 2017-08-21 | 2017-12-12 | 高萌迪 | A kind of high tree fruit harvesting staircase of stability |
| JP2019015073A (en) * | 2017-07-06 | 2019-01-31 | 特殊梯子製作所有限会社 | Tubular sliding structure and expandable ladder to which the same is applied partially |
| CN109663310A (en) * | 2018-11-21 | 2019-04-23 | 浙江国际海运职业技术学院 | A kind of ship activity step ladder |
-
2014
- 2014-10-10 CN CN201420581869.5U patent/CN204081972U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653094A (en) * | 2015-01-23 | 2015-05-27 | 余登会 | Upright high-voltage line maintaining ladder |
| CN104752986A (en) * | 2015-02-24 | 2015-07-01 | 徐正昌 | High voltage dedicated circuit ladder |
| CN104763317A (en) * | 2015-03-01 | 2015-07-08 | 余登会 | Firefighting upright special-purpose ladder |
| CN104727739A (en) * | 2015-03-09 | 2015-06-24 | 余登会 | Erecting ladder for fire fighting |
| CN104763320A (en) * | 2015-03-09 | 2015-07-08 | 余登会 | A vertical ladder for fire fighting |
| JP2019015073A (en) * | 2017-07-06 | 2019-01-31 | 特殊梯子製作所有限会社 | Tubular sliding structure and expandable ladder to which the same is applied partially |
| CN107461141A (en) * | 2017-08-21 | 2017-12-12 | 高萌迪 | A kind of high tree fruit harvesting staircase of stability |
| CN107461141B (en) * | 2017-08-21 | 2019-07-12 | 陈玲婷 | Staircase is used in a kind of picking of the tree fruit that stability is high |
| CN109663310A (en) * | 2018-11-21 | 2019-04-23 | 浙江国际海运职业技术学院 | A kind of ship activity step ladder |
| CN109663310B (en) * | 2018-11-21 | 2020-07-28 | 浙江国际海运职业技术学院 | Movable ascending ladder for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20201010 |