CN208152933U - A kind of extension ladder finger pinch device - Google Patents
A kind of extension ladder finger pinch device Download PDFInfo
- Publication number
- CN208152933U CN208152933U CN201820696578.9U CN201820696578U CN208152933U CN 208152933 U CN208152933 U CN 208152933U CN 201820696578 U CN201820696578 U CN 201820696578U CN 208152933 U CN208152933 U CN 208152933U
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- air
- air inlet
- ladder bars
- gasket
- valve device
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model discloses a kind of extension ladder finger pinch devices, it is related to extension ladder field, it includes middle ladder bars, upper ladder bars, lower ladder bars, upper layer air-valve device, bottom air-valve device, foot pad, air inlet/outlet, the upper and lower ends of middle ladder bars socket-connect with upper ladder bars and lower ladder bars respectively, and socket place is separately installed with upper layer air-valve device, bottom air-valve device is installed, the bottom of lower ladder bars is equipped with foot pad, is provided with air inlet/outlet in the middle part of foot pad in the lower end of lower ladder bars.It is reasonable in design, easy to operate, easy to use, and decline slow effect is completed on the basis of not influencing and stretching on quickly, not only user will not clamp hand, but also improve service life, meet the use demand of people.
Description
Technical field：
The utility model relates to a kind of extension ladder finger pinch devices, belong to extension ladder technical field.
Background technique：
Currently, extension ladder is using more and more extensive, it be suitable for needing frequently and safety ascend a height or aloft take and
All kinds of places for storing article use, and with the demand in market, the requirement of stability in use and safety also correspondinglys increase, by
There is certain retractility in extension ladder, can quickly adjust height, and user is easy when existing extension ladder drops at the fast speed
Hand folding, than relatively hazardous when constructing operation, the service life of ladder is not grown, and can not meet the use demand of people.
Utility model content：
In view of the above-mentioned problems, the technical problem to be solved by the present invention is to provide a kind of extension ladder finger pinch devices.
A kind of extension ladder finger pinch device of the utility model, it includes middle ladder bars, upper ladder bars, lower ladder bars, upper layer air valve
Device, bottom air-valve device, foot pad, air inlet/outlet, the upper and lower ends of middle ladder bars socket-connect with upper ladder bars and lower ladder bars respectively, and
Socket place is separately installed with upper layer air-valve device, and bottom air-valve device, the bottom peace of lower ladder bars are equipped in the lower end of lower ladder bars
Equipped with foot pad, air inlet/outlet is provided in the middle part of foot pad.
Preferably, the upper layer air-valve device is by upper layer air valve pedestal, the first gasket seal briquetting, the first pad
Piece, sealing ring, big air inlet/outlet form, and are arranged on the air valve pedestal of upper layer there are two big air inlet and two small air inlet/outlets, on
The first gasket seal briquetting is installed in layer air valve pedestal, the first gasket is installed below the first gasket seal briquetting, and the
One gasket is located at the top of two big air inlet, is arranged with sealing ring below the air valve pedestal of upper layer, in the air valve pedestal of upper layer
Portion is provided with big air inlet/outlet.
Preferably, the bottom air-valve device is by bottom air valve pedestal, the second gasket seal briquetting and the second pad
Piece composition, setting is equipped with second in bottom air valve pedestal there are two air inlet and two air inlet/outlets on bottom air valve pedestal
Gasket seal briquetting is equipped with the second gasket below the second gasket seal briquetting, and the second gasket is located at two air inlets
Top.
The beneficial effects of the utility model：It is reasonable in design, easy to operate, easy to use, is not influencing on quickly
The slow effect of decline is completed on the basis of stretching, not only user will not clamp hand, but also improve service life, meet people
Use demand.
Detailed description of the invention：
The present invention is described in detail by the following detailed description and drawings for ease of explanation,.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the decomposition texture schematic diagram of the utility model；
Fig. 4 is the structural schematic diagram of the utility model air-valve device at the middle and upper levels；
Fig. 5 is the main view of the utility model air-valve device at the middle and upper levels；
Fig. 6 is the B-B direction cross-sectional view of Fig. 5；
Fig. 7 is the top view of the utility model air-valve device at the middle and upper levels；
Fig. 8 is the structural schematic diagram of bottom air-valve device in the utility model；
Fig. 9 is the main view of bottom air-valve device in the utility model；
Figure 10 is the C-C of Fig. 9 to cross-sectional view.
Ladder bars in 1-；The upper ladder bars of 2-；Ladder bars under 3-；The upper layer 4- air-valve device；The upper layer 4-1- air valve pedestal；4-2- first is close
Gasket briquetting；The first gasket of 4-3-；4-4- sealing ring；The big air inlet/outlet of 4-5-；5- bottom air-valve device；5-1- bottom air valve
Pedestal；5-2- the second gasket seal briquetting；The second gasket of 5-3-；6- foot pad；7- air inlet/outlet.
Specific embodiment：
As shown in Fig. 1-Figure 10, present embodiment uses following technical scheme：It include middle ladder bars 1, upper ladder bars 2,
Lower ladder bars 3, upper layer air-valve device 4, bottom air-valve device 5, foot pad 6, air inlet/outlet 7, the upper and lower ends of middle ladder bars 1 respectively with it is upper
Ladder bars 2 and lower ladder bars 3 socket-connect, and socket place is separately installed with upper layer air-valve device 4, is equipped with bottom in the lower end of lower ladder bars 3
Layer air-valve device 5, the bottom of lower ladder bars 3 are equipped with foot pad 6, and the middle part of foot pad 6 is provided with air inlet/outlet 7.
Wherein, the upper layer air-valve device 4 is by upper layer air valve pedestal 4-1, the first gasket seal briquetting 4-2, first
Gasket 4-3, sealing ring 4-4, big air inlet/outlet 4-5 are formed, and there are two big air inlet 4-1-1 for setting on the air valve pedestal 4-1 of upper layer
With air inlet/outlet 4-1-2 two small, the first gasket seal briquetting 4-2, the first gasket seal are installed in the air valve pedestal 4-1 of upper layer
First gasket 4-3 is installed, and the first gasket 4-3 is located at the top of air inlet 4-1-1 two big, upper layer below briquetting 4-2
It is arranged with sealing ring 4-4 below air valve pedestal 4-1, is provided with big air inlet/outlet 4-5 in the middle part of the air valve pedestal 4-1 of upper layer；Institute
The bottom air-valve device 5 stated is made of bottom air valve pedestal 5-1, the second gasket seal briquetting 5-2 and the second gasket 5-3, bottom
There are two air inlet 5-1-1 and two air inlet/outlet 5-1-2, the interior installations of bottom air valve pedestal 5-1 for setting on layer air valve pedestal 5-1
Have and the second gasket 5-3, and the second gasket 5- are installed below the second gasket seal briquetting 5-2, the second gasket seal briquetting 5-2
3 are located at the top of two air inlet 5-1-1.
The stretching principle of present embodiment air-valve device at the middle and upper levels：It is lifted up ladder bars, air inlet 4-1-1 two big
On the first gasket 4-3 open immediately, air inlet 4-1-1 two big and air inlet/outlet 4-1-2 two small are simultaneously from the folder of cleat stanchion
Air inlet/outlet air inlet is entered in seam, it, can quick drawing effect not by resistance when making to be promoted.
The contraction principle of present embodiment air-valve device at the middle and upper levels：Ladder bars are shunk toward when falling, and the first gasket 4-3 is vertical
Air inlet 4-1-1 two big is sealed, by two small air inlet/outlet 4-1-2 outlet, small air inlet/outlet 4-1-2 is by reasonable meter
Design is calculated, the speed that causes to fall and break is slowed by immediately.
The outlet process of present embodiment air-valve device at the middle and upper levels：The first gasket on the air valve pedestal 4-1 of upper layer
Piece briquetting 4-2 and the first gasket 4-3 has withstood air inlet 4-1-1 two big, so just slowly decline when decline, leads to
Air inlet/outlet 4-1-2 two small is crossed to be vented through excessive air inlet/outlet 4-5 to air inlet/outlet.
In present embodiment bottom air-valve device on stretch principle：When promoting bottom ladder bars, two air inlet 5-1-1
On the second gasket 5-3 open immediately, two air inlet 5-1-1 and two air inlet/outlet 5-1-2 are simultaneously from the disengaging on foot pad 6
7 air inlet of port enters the air inlet/outlet 5-1-2 air inlet on bottom air valve pedestal 5-1, can be quickly not by resistance when making to be promoted
Drawing effect.
The lower contracting principle of bottom air-valve device in present embodiment:When bottom ladder bars shrink past whereabouts, the second gasket
5-3 seals two air inlet 5-1-1 immediately, and by two air inlet/outlet 5-1-2 outlets, small air inlet/outlet is set by reasonable calculating
Meter, the speed that causes to fall and break are slowed by immediately.
The outlet process of bottom air-valve device in present embodiment：When pressing down on ladder bars, bottom air valve pedestal 5-1
On the second gasket seal briquetting 5-2 and the second gasket 5-3 withstood two air inlet 5-1-1, so decline when just
Slowly decline is vented by two air inlet/outlet 5-1-2 by the air inlet/outlet 7 on air inlet/outlet to foot pad 6.
Specific embodiment has reasonable structure design, easy to operate, easy to use, on the basis of not influencing to stretch on quickly
Complete the slow effect of decline, not only user will not clamp hand, but also improve service life, the use for meeting people needs
It asks.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (3)
1. a kind of extension ladder finger pinch device, it is characterised in that：It include middle ladder bars (1), upper ladder bars (2), lower ladder bars (3), on
Layer air-valve device (4), bottom air-valve device (5), foot pad (6), air inlet/outlet (7), the upper and lower ends of middle ladder bars (1) respectively with it is upper
Ladder bars (2) and lower ladder bars (3) socket-connect, and socket place is separately installed with upper layer air-valve device (4), in the lower end of lower ladder bars (3)
It is equipped with bottom air-valve device (5), the bottom of lower ladder bars (3) is equipped with foot pad (6), and foot pad is provided with disengaging gas in the middle part of (6)
Mouth (7).
2. a kind of extension ladder finger pinch device according to claim 1, it is characterised in that：The upper layer air-valve device
(4) be by upper layer air valve pedestal (4-1), the first gasket seal briquetting (4-2), the first gasket (4-3), sealing ring (4-4), greatly into
Venthole (4-5) forms, and there are two big air inlet (4-1-1) and two small air inlet/outlets for setting on upper layer air valve pedestal (4-1)
(4-1-2), upper layer air valve pedestal (4-1) is interior to be equipped with the first gasket seal briquetting (4-2), the first gasket seal briquetting (4-2)
Lower section be equipped with the first gasket (4-3), and the first gasket (4-3) is located at the top of two big air inlet (4-1-1), upper layer gas
It is arranged with below valve base seat (4-1) sealing ring (4-4), big air inlet/outlet (4- is provided in the middle part of upper layer air valve pedestal (4-1)
5)。
3. a kind of extension ladder finger pinch device according to claim 1, it is characterised in that：The bottom air-valve device
(5) it is made of bottom air valve pedestal (5-1), the second gasket seal briquetting (5-2) and the second gasket (5-3), bottom air valve base
There are two air inlet (5-1-1) and two air inlet/outlets (5-1-2), the interior installations of bottom air valve pedestal (5-1) for setting on seat (5-1)
There is the second gasket seal briquetting (5-2), is equipped with the second gasket (5-3) below the second gasket seal briquetting (5-2), and second
Gasket (5-3) is located at the top of two air inlets (5-1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820696578.9U CN208152933U (en) | 2018-05-11 | 2018-05-11 | A kind of extension ladder finger pinch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820696578.9U CN208152933U (en) | 2018-05-11 | 2018-05-11 | A kind of extension ladder finger pinch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208152933U true CN208152933U (en) | 2018-11-27 |
Family
ID=64390025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820696578.9U Active CN208152933U (en) | 2018-05-11 | 2018-05-11 | A kind of extension ladder finger pinch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208152933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020199256A1 (en) * | 2019-04-04 | 2020-10-08 | 东莞凯丰家居用品有限公司 | Telescopic ladder rod unit |
-
2018
- 2018-05-11 CN CN201820696578.9U patent/CN208152933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020199256A1 (en) * | 2019-04-04 | 2020-10-08 | 东莞凯丰家居用品有限公司 | Telescopic ladder rod unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200611 Address after: 321300 No.21 Chuang 4th Road, Zhejiang business return Innovation Park, Longshan Town, Yongkang City, Jinhua City, Zhejiang Province (self declaration) Patentee after: Yongkang Weige industry and Trade Co.,Ltd. Address before: 321300 Zhejiang city of Jinhua province Yongkang City Zhiying Street No. 239 Xu Village Patentee before: Xu Fengge |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A telescopic ladder anti pinch hand device Effective date of registration: 20231113 Granted publication date: 20181127 Pledgee: Yongkang branch of the Industrial Commercial Bank of China Ltd. Pledgor: Yongkang Weige industry and Trade Co.,Ltd. Registration number: Y2023980064977 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |