CN201137456Y - Ladder - Google Patents
Ladder Download PDFInfo
- Publication number
- CN201137456Y CN201137456Y CNU2007201311408U CN200720131140U CN201137456Y CN 201137456 Y CN201137456 Y CN 201137456Y CN U2007201311408 U CNU2007201311408 U CN U2007201311408U CN 200720131140 U CN200720131140 U CN 200720131140U CN 201137456 Y CN201137456 Y CN 201137456Y
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- CN
- China
- Prior art keywords
- latch hook
- turning cylinder
- assembly
- duty
- ladder body
- 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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- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000007306 turnover Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a ladder, comprising a ladder body and a positioning mechanism. The ladder body comprises a front support, a back support, at least one lower step component, an upper step component and a connecting rod, wherein the upper of the back support and the upper of the front support are rotationally connected via a first rotation shaft, the ladder body is provided with a limit element for preventing the back support from over opening relative to the front support, one end of the lower step component is rotationally provided on the front support via a second rotation shaft, one end of the upper step component is rotationally provided on the upper of the front support via a third rotation shaft, one end of the connecting rod is rotationally connected with the lower step component via a fourth rotation shaft, the another end of the connecting rod is rotationally connected with the upper step component via a fifth rotation shaft. The front support, the lower step component, the upper step component and the connecting rod form a stable four-link structure, and user can safely step on the lower step component and the utility model can prevent inclination.
Description
Technical field
The utility model relates to a kind of ladder.
Background technology
In the ladder of prior art, the assembly of getting out of a predicament or an embarrassing situation, the assembly of topping bar are provided with rotationally with respect to fore-stock, and when trampling the assembly of getting out of a predicament or an embarrassing situation and making progress, the people turns over easily backward, causes dangerous.
Summary of the invention
The purpose of this utility model is to provide a kind of ladder, and this ladder has stable four-bar linkage structure when open mode.
In order to reach above purpose, the technical solution adopted in the utility model is: a kind of ladder, comprise ladder body with open mode and folded state, be arranged on the described ladder body and be used to make described ladder body stably to be in the detent mechanism of open mode or folded state, described ladder body comprises fore-stock, after-poppet, at least one assembly of getting out of a predicament or an embarrassing situation, the assembly of topping bar, connecting rod, the top of described after-poppet rotates by first turning cylinder with the top of described fore-stock and is connected, described ladder body is provided with the locating part of forbidding that described after-poppet is excessively opened with respect to described fore-stock, one end of the described assembly of getting out of a predicament or an embarrassing situation is arranged on the described fore-stock rotationally by second turning cylinder, one end of the described assembly of topping bar is arranged on described fore-stock top rotationally by the 3rd turning cylinder, one end of described connecting rod rotates by the 4th turning cylinder with the described assembly of getting out of a predicament or an embarrassing situation and is connected, the other end of described connecting rod rotates by the 5th turning cylinder with the described assembly of topping bar and is connected, described first turning cylinder, described second turning cylinder, described the 3rd turning cylinder, described the 4th turning cylinder, the rotational axis line of described the 5th turning cylinder all extends along the left and right sides direction of described ladder body, described first turning cylinder is positioned at the top of described the 3rd turning cylinder and described the 5th turning cylinder, described the 4th turning cylinder is positioned at the rear of described second turning cylinder, and described the 5th turning cylinder is positioned at the rear of described the 3rd turning cylinder.
Described detent mechanism is arranged on described topping bar between assembly and the described after-poppet.
Described detent mechanism comprises the lock dog that is arranged on the described after-poppet, can be slidingly arranged in first latch hook and second latch hook on the described assembly of topping bar along the fore-and-aft direction of the described ladder body that is in open mode, described second latch hook is positioned at the place ahead of described first latch hook, described detent mechanism has first duty that is used to make described ladder body be in open mode and is used to make described ladder body to be in second duty of folded state, when described detent mechanism is in first duty, described first latch hook hooks described lock dog, and described second latch hook and described lock dog are separated; When described detent mechanism was in second duty, described second latch hook hooked described lock dog, and described first latch hook and described lock dog are separated.
The opening direction of the described first latch hook hook groove is identical with the glide direction of described first latch hook, and the opening direction of the described second latch hook hook groove is identical with the glide direction of described second latch hook.
When described detent mechanism from second duty when first duty is changed, has first guiding surface on the face that the external surface of described first latch hook and described lock dog offset, when described detent mechanism from first duty when second duty is changed, have second guiding surface on the face that the external surface of described second latch hook and described lock dog offset.
The described assembly of topping bar is provided with and is used to operating mechanism that described detent mechanism is changed between first duty and second duty.
Described operating mechanism comprises the handle that is connected with described first latch hook and described second latch hook, be arranged on described second latch hook and describedly top bar between the assembly and be used to provide described first latch hook and the elastic component of a restoring force of described second latch hook.
Described first latch hook is along offering first locating slot on the fore-and-aft direction of described ladder body that is in open mode, can be provided with first locating piece slidably along the slot length direction of described first locating slot on the described assembly of topping bar, described second latch hook can be provided with second locating piece along offering second locating slot on the fore-and-aft direction of the described ladder body that is in open mode along the slot length direction of described second locating slot on the described assembly of topping bar slidably.
Because the utility model has adopted above technical scheme, its advantage is:
Fore-stock, the assembly of getting out of a predicament or an embarrassing situation, the assembly of topping bar, connecting rod form stable four-bar linkage structure in the utility model, and the people can trample safely and get out of a predicament or an embarrassing situation assembly upwards, is not easy to turn over backward.
Description of drawings
Local main sectional view (first latch hook hooks lock dog) when accompanying drawing 1 is in open mode for the utility model;
Local main sectional view (first latch hook and lock dog are separated) when accompanying drawing 2 is in open mode for the utility model;
Local main sectional view (second latch hook hooks lock dog) when accompanying drawing 3 is in folded state for the utility model;
Front view when accompanying drawing 4 is in open mode for the utility model;
Right view when accompanying drawing 5 is in open mode for the utility model;
Wherein:
1, fore-stock; 2, after-poppet; 3, the assembly of getting out of a predicament or an embarrassing situation; 4, the assembly of topping bar; 5, first turning cylinder; 6, second turning cylinder; 7, the 3rd turning cylinder; 8, detent mechanism 9, connecting rod 10, the 4th turning cylinder; 11, the 5th turning cylinder; 12, ladder body; 13, lock dog; 14, first latch hook; 15, second latch hook; 16, operating mechanism; 17, handle; 18, elastic component; 19, first guiding surface; 20, second guiding surface 21, first locating slot 22, first locating piece 23, second locating slot; 24, second locating piece.
The specific embodiment
Further set forth concrete structure of the present utility model and folding process below in conjunction with accompanying drawing.
Shown in accompanying drawing 1-5, a kind of ladder, by ladder body 12 with open mode and folded state, the detent mechanism 8 that is arranged on the described ladder body 12 and is used to make described ladder body 12 to change between open mode and folded state is formed, described ladder body 12 comprises fore-stock 1 again, after-poppet 2, the assembly 3 of getting out of a predicament or an embarrassing situation, the assembly 4 of topping bar, connecting rod 9, the top of described after-poppet 2 rotates by first turning cylinder 5 with the top of described fore-stock 1 and is connected, described ladder body 12 is provided with forbids the locating part of described after-poppet 2 with respect to described fore-stock 1 inordinate rotation, this locating part makes ladder form a fixed angle between after-poppet 2 and the fore-stock 1 when being in open mode, after-poppet 2 and fore-stock 1 stably open with respect to ground, one end of the described assembly 3 of getting out of a predicament or an embarrassing situation is arranged on the described fore-stock 1 rotationally by second turning cylinder 6, one end of the described assembly 4 of topping bar is arranged on described fore-stock 1 top rotationally by the 3rd turning cylinder 7, one end of described connecting rod 9 rotates by the 4th turning cylinder 10 with the other end of the described assembly 3 of getting out of a predicament or an embarrassing situation and is connected, the other end of described connecting rod 9 rotates by the 5th turning cylinder 11 with the described assembly 4 of topping bar and is connected, and described detent mechanism 8 is arranged on described topping bar between assembly 4 and the described after-poppet 2.
The rotational axis line of described first turning cylinder 5, described second turning cylinder 6, described the 3rd turning cylinder 7, described the 4th turning cylinder 10, described the 5th turning cylinder 11 all extends along the left and right sides direction of described ladder body 12, described first turning cylinder 5 is positioned at the top of described the 3rd turning cylinder 7 and described the 5th turning cylinder 11, described the 4th turning cylinder 10 is positioned at the rear of described second turning cylinder 6, and described the 5th turning cylinder 11 is positioned at the rear of described the 3rd turning cylinder 7.
In the present embodiment, described detent mechanism 8 comprises the lock dog 13 that is arranged on the described after-poppet 2, can be slidingly arranged in first latch hook 14 and second latch hook 15 on the described assembly 4 of topping bar along the fore-and-aft direction of described ladder body 12, described second latch hook 15 is positioned at the place ahead of described first latch hook 14, described detent mechanism 8 has first duty that is used to make described ladder body 12 be in open mode and is used to make described ladder body 12 to be in second duty of folded state, when described detent mechanism 8 is in first duty, described first latch hook 14 hooks described lock dog 13, described second latch hook 15 is separated with described lock dog 13, this moment, described ladder body 12 was in open mode, and the described assembly 4 of topping bar fixes away from an end and the described after-poppet 2 of the 3rd turning cylinder 7; When described detent mechanism 8 is in second duty, described second latch hook 15 hooks described lock dog 13, described first latch hook 14 is separated with described lock dog 13, this moment, described ladder body 12 was in folded state, when described ladder body 12 is changed between open mode and folded state, the described end and described after-poppet 2 mutually movable setting of assembly 4 of topping bar away from the 3rd turning cylinder 7.
The opening direction of described first latch hook, 14 hook grooves is identical with the glide direction of described first latch hook 14, and the opening direction of described second latch hook, 15 hook grooves is identical with the glide direction of described second latch hook 15.
When described detent mechanism 8 from second duty when first duty is changed, has first guiding surface 19 on the external surface that described first latch hook 14 and described lock dog offset, described first guiding surface 19 is used for making automatically first latch hook 14 to hook lock dog 13, when described detent mechanism 8 from first duty when second duty is changed, have second guiding surface 20 on the external surface that described second latch hook 15 and described lock dog offset, described second guiding surface 20 is used for making automatically second latch hook 15 to hook lock dog 13.
The described assembly 4 of topping bar is provided with and is used to operating mechanism 16 that described detent mechanism 8 is changed between first duty and second duty.
Described operating mechanism 16 comprises the handle 17 that is connected with described second latch hook 15 with described first latch hook 14, be arranged on described second latch hook 15 and describedly top bar between the assembly 4 and be used to provide described first latch hook 14 and the elastic component 18 of 15 1 restoring forces of described second latch hook, described operating mechanism 16 is used for release first latch hook 14 or second latch hook 15 and lock dog 13, pulling handle 17 when detent mechanism 8 is in first duty or second duty, first latch hook 14 or second latch hook 15 are separated with lock dog 13, can fold or open described ladder body 12 this moment, unclamp handle 17, first latch hook 14 or second latch hook 15 are got back to the origin-location and are used for hooking lock dog 13 again under the restoring force effect of elastic component 18.
For the glide direction that limits described first latch hook 14 and described second latch hook 15 and in order to prevent described first latch hook 14 and described second latch hook, 15 excessive slip, described first latch hook 14 is along offering first locating slot 21 on the fore-and-aft direction of described ladder body 12 that is in open mode, can be provided with first locating piece 22 along the slot length direction of described first locating slot 21 slidably on the described assembly 4 of topping bar, equally, described second latch hook 15 can be provided with second locating piece 24 along offering second locating slot 23 on the fore-and-aft direction of the described ladder body 12 that is in open mode along the slot length direction of described second locating slot 23 on the described assembly 4 of topping bar slidably.
Claims (8)
1, a kind of ladder, comprise ladder body (12), be arranged on described ladder body (12) and go up and be used to make described ladder body (12) stably to be in the detent mechanism (8) of open mode or folded state that it is characterized in that: described ladder body (12) comprises with open mode and folded state
Fore-stock (1);
After-poppet (2), the top of described after-poppet (2) rotates by first turning cylinder (5) with the top of described fore-stock (1) and is connected, and described ladder body (12) is provided with the locating part of forbidding that described after-poppet (2) is excessively opened with respect to described fore-stock (1);
At least one assembly of getting out of a predicament or an embarrassing situation (3), an end of the described assembly of getting out of a predicament or an embarrassing situation (3) is arranged on the described fore-stock (1) rotationally by second turning cylinder (6);
The assembly (4) of topping bar, an end of the described assembly of topping bar (4) is arranged on described fore-stock (1) top rotationally by the 3rd turning cylinder (7);
Connecting rod (9), an end of described connecting rod (9) rotate by the 4th turning cylinder (10) with the described assembly of getting out of a predicament or an embarrassing situation (3) and are connected, and the other end of described connecting rod (9) rotates by the 5th turning cylinder (11) with the described assembly of topping bar (4) and is connected;
The rotational axis line of described first turning cylinder (5), described second turning cylinder (6), described the 3rd turning cylinder (7), described the 4th turning cylinder (10), described the 5th turning cylinder (11) all extends along the left and right sides direction of described ladder body (12), described first turning cylinder (5) is positioned at the top of described the 3rd turning cylinder (7) and described the 5th turning cylinder (11), described the 4th turning cylinder (10) is positioned at the rear of described second turning cylinder (6), and described the 5th turning cylinder (11) is positioned at the rear of described the 3rd turning cylinder (7).
2, ladder according to claim 1 is characterized in that: described detent mechanism (8) is arranged between described assembly of topping bar (4) and the described after-poppet (2).
3, ladder according to claim 2, it is characterized in that: described detent mechanism (8) comprises the lock dog (13) that is arranged on the described after-poppet (2), can be slidingly arranged in first latch hook (14) and second latch hook (15) on the described assembly of topping bar (4) along the fore-and-aft direction of the described ladder body (12) that is in open mode, described second latch hook (15) is positioned at the place ahead of described first latch hook (14), described detent mechanism (8) has first duty that is used to make described ladder body (12) be in open mode and is used to make described ladder body (12) to be in second duty of folded state, when described detent mechanism (8) is in first duty, described first latch hook (14) hooks described lock dog (13), and described second latch hook (15) is separated with described lock dog (13); When described detent mechanism (8) was in second duty, described second latch hook (15) hooked described lock dog (13), and described first latch hook (14) is separated with described lock dog (13).
4, ladder according to claim 3, it is characterized in that: the opening direction of described first latch hook (14) hook groove is identical with the glide direction of described first latch hook (14), and the opening direction of described second latch hook (15) hook groove is identical with the glide direction of described second latch hook (15).
5, ladder according to claim 3, it is characterized in that: when described detent mechanism (8) from second duty when first duty is changed, has first guiding surface (19) on the face that the external surface of described first latch hook (14) and described lock dog (13) offset, when described detent mechanism (8) from first duty when second duty is changed, have second guiding surface (20) on the face that the external surface of described second latch hook (15) and described lock dog (13) offset.
6, ladder according to claim 3 is characterized in that: the described assembly of topping bar (4) is provided with and is used to operating mechanism (16) that described detent mechanism (8) is changed between first duty and second duty.
7, ladder according to claim 6 is characterized in that: described operating mechanism (16) comprises the handle (17) that is connected with described first latch hook (14) and described second latch hook (15), is arranged between described second latch hook (15) and the described assembly of topping bar (4) and is used to provide described first latch hook (14) and the elastic component (18) of (15) restoring forces of described second latch hook.
8, ladder according to claim 7, it is characterized in that: described first latch hook (14) is along offering first locating slot (21) on the fore-and-aft direction of described ladder body (12) that is in open mode, can be provided with first locating piece (22) along the slot length direction of described first locating slot (21) slidably on the described assembly of topping bar (4), described second latch hook (15) can be provided with second locating piece (24) along offering second locating slot (23) on the fore-and-aft direction of the described ladder body (12) that is in open mode along the slot length direction of described second locating slot (23) on the described assembly of topping bar (4) slidably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201311408U CN201137456Y (en) | 2007-11-30 | 2007-11-30 | Ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201311408U CN201137456Y (en) | 2007-11-30 | 2007-11-30 | Ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137456Y true CN201137456Y (en) | 2008-10-22 |
Family
ID=40038142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201311408U Expired - Fee Related CN201137456Y (en) | 2007-11-30 | 2007-11-30 | Ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137456Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744530A (en) * | 2018-06-25 | 2018-11-06 | 董哲伊 | A kind of venture cunning slide |
-
2007
- 2007-11-30 CN CNU2007201311408U patent/CN201137456Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744530A (en) * | 2018-06-25 | 2018-11-06 | 董哲伊 | A kind of venture cunning slide |
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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 |
Granted publication date: 20081022 Termination date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |