CN206111921U - Extension ladder cylinder - Google Patents
Extension ladder cylinder Download PDFInfo
- Publication number
- CN206111921U CN206111921U CN201620779137.6U CN201620779137U CN206111921U CN 206111921 U CN206111921 U CN 206111921U CN 201620779137 U CN201620779137 U CN 201620779137U CN 206111921 U CN206111921 U CN 206111921U
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- cylinder
- extension ladder
- passing hole
- air inlet
- air passing
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Abstract
The utility model provides an extension ladder cylinder, this extension ladder cylinder includes a cascaded cylindrical body, through open cascaded air passing hole on great circle capital face, open with the inlet port of air passing hole intercommunication on the big cylinder outer wall and seal up gasket cooperation messenger extension ladder cylinder in big air passing hole through the closing cap and admit air only and to give vent to anger, and the side of above -mentioned structure admit air also can be comparatively the convenience, and through open one 0.8 on the cylinder body 1.3 the exhaust hole of millimeter, reach safe effect of slowly falling.
Description
Technical field
This utility model belongs to extension ladder accessory field, is a kind of extension ladder cylinder for being easy to air inlet specifically.
Background technology
China Patent Publication No.：102733751A discloses a kind of safety extension ladder of finger, file disclosed in it
In made referrals to a kind of capping, the product of general entitled cylinder in the namely industry is covered herein, from disclosed file I
It is recognised that intake method of its capping is bottom inflow, by opening cannelure, ring on the outer peripheral face for covering big cylindrical portion
The passage for axially penetrating through is provided with the lower wall of shape groove, controlling capping by a sealing ring that can be moved in cannelure is
No air inlet, such intake method has that air inlet is more slow, because being also cased with pole in capping, can so hinder close
The movement of seal, we may also be aware of from disclosed file, and it is by being fixed in capping that its extension ladder delays the effect of drop
Realizing, there is larger potential safety hazard in such slow drop technology with two sealing rings, more permanent flexible especially with the time
Ladder is obvious all the more, because with the growth of use time, disrepair phenomenon easily occurs in sealing ring, there is potential safety hazard.
Utility model content
This utility model aims to provide a kind of extension ladder cylinder, can carry and reach air inlet conveniently and the effect of slow drop safety.
To achieve these goals, according to one side of the present utility model, there is provided a kind of extension ladder cylinder, including：
Cylinder body, cylinder body is made up of two cylinders that are not of uniform size and fixing in staged, and its outside of cylinder body is socketed with sealing
Circle；Wherein larger its top surface of cylinder is provided with a up big and down small staged air passing hole, is also provided with and air passing hole on its lateral surface
The air inlet of UNICOM, air inlet need to be than sealing ring closer to small column；And, diaphragm seal and capping, diaphragm seal is placed in compared with serious offense
On pore and by lidstock, make extension ladder cylinder air inlet only air inlet can not outlet, closure is provided with thereon cylinder
Venthole, makes the gas that air passing hole is entered to pass through venthole and enters in the Telescopic-cylinder bar fixed with larger cylinder, cylinder sheet
Body is also individually provided with thereon a steam vent, and aerofluxuss bore dia is less than air inlet, by steam vent when declining Telescopic-cylinder bar
Effect slowly decline.
Further, air inlet is at least two.
Further, capping is fitted close with larger air passing hole, and is provided with a circle cylinder venthole on covering.
Further, sealing ring its be socketed on big cylinder.
Using the technical solution of the utility model, make the gas of outside be easier cylinder by the structure of bottom inflow and enter
Enter in Telescopic-cylinder bar, and it is slow to decline extension ladder by the steam vent between 0.8-1.3 centimetre, and safety also compared with
It is high.
Description of the drawings
The accompanying drawing for constituting this utility model part is used for providing further understanding to of the present utility model, this utility model
Schematic description and description be used for explain this utility model, do not constitute to improper restriction of the present utility model.Attached
In figure：
Fig. 1 is this utility model extension ladder cylinder part schematic diagram.
Reference：1st, body；101st, big cylinder；2nd, sealing ring；2nd, air passing hole；4th, air inlet；5th, diaphragm seal；6th, seal
Lid；7th, venthole；8th, steam vent.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing this utility model in detail.It should be noted that not rushing
In the case of prominent, the feature in embodiment and embodiment in the application can be mutually combined.
As shown in figure 1, according to embodiment of the present utility model, extension ladder cylinder includes a cylindrical body 1, above-mentioned body by
Up big and down small two cylinders composition, wherein big cylinder 101 is fixed with Telescopic-cylinder bar, and is socketed thereon a sealing ring 2, in order to
Make sealing ring 2 fixed, industry universal technology is to drive cannelure on big cylinder 101 to realize, above-mentioned big cylinder 101 is pushed up
Portion is provided with a up big and down small staged air passing hole 3, and multiple air inlets connected with air passing hole 3 are provided with the outer wall of big cylinder 101
Mouthfuls 4, here this utility model be preferably four, a diaphragm seal 5 is further enclosed with big air passing hole, one is fitted close with big air passing hole
Capping 6 encapsulate diaphragm seal 5, what is required emphasis herein is a bit, and capping 6 can not fix diaphragm seal 5 extremely, otherwise outside sky
Gas cannot enter into the lifting that extension ladder also cannot be just realized in Telescopic-cylinder bar by air inlet 3 and air passing hole 4, further
Illustrate, one is provided with above-mentioned capping 6 and irises out pore 7, coordinate air to enter in Telescopic-cylinder bar；
Further, a vertical steam vent 8 is provided with above-mentioned body 1, so when extension ladder declines, due to sealing
The effect of piece 5, gas can only be discharged from less steam vent 8, reach the effect of the slow drop of safety.
As can be seen from the above description, by using the structure of above-mentioned side air inlet, air inlet convenience more is made,
Any obstruction, and the design for passing through small de-air hole are not had, delays the ideal that drop can more, and safety.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, the present invention can have various changes and change.It is all it is of the present utility model spirit and principle within,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of extension ladder cylinder, including：
Cylinder body, the cylinder body is made up of two cylinders that are not of uniform size and fixing in staged,
Its outside of cylinder body is socketed with sealing ring；
It is characterized in that：
Larger cylinder its top surface is provided with a up big and down small staged air passing hole, is also provided with its lateral surface and air passing hole UNICOM
Air inlet, air inlet need to be than sealing ring closer to small column；
The extension ladder cylinder also includes diaphragm seal and capping, and diaphragm seal is placed on larger air passing hole and by lidstock, makes
The only air inlet of the air inlet of extension ladder cylinder can not outlet,
The closure is provided with thereon cylinder venthole, the gas that air passing hole is entered is entered and larger cylinder by venthole
In fixed Telescopic-cylinder bar,
The cylinder body is also individually provided with thereon a steam vent, and aerofluxuss bore dia is less than air inlet, under making Telescopic-cylinder bar
Slowly declined by the effect of steam vent during drop.
2. extension ladder cylinder according to claim 1, it is characterised in that：The air inlet is at least two.
3. extension ladder cylinder according to claim 1, it is characterised in that：The capping is closely matched somebody with somebody with the larger air passing hole
Close, and a circle cylinder venthole is provided with covering.
4. extension ladder cylinder according to claim 1, it is characterised in that：The sealing ring its be socketed on big cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620779137.6U CN206111921U (en) | 2016-07-06 | 2016-07-06 | Extension ladder cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620779137.6U CN206111921U (en) | 2016-07-06 | 2016-07-06 | Extension ladder cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111921U true CN206111921U (en) | 2017-04-19 |
Family
ID=58511910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620779137.6U Active CN206111921U (en) | 2016-07-06 | 2016-07-06 | Extension ladder cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111921U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107969835A (en) * | 2017-11-24 | 2018-05-01 | 无锡南理工新能源电动车科技发展有限公司 | A kind of slow drop formula thing to sit on |
| DE202018101804U1 (en) | 2018-03-20 | 2018-08-24 | Zhejiang Mingfeng Industry & Trade Co., Ltd. | New air cylinder for a fold-out ladder |
| WO2018192095A1 (en) * | 2017-04-20 | 2018-10-25 | 周敏青 | Sealing sleeve and telescopic ladder |
| CN109497876A (en) * | 2018-12-17 | 2019-03-22 | 庄顺凯 | A kind of Novel paper-extracting box |
| CN113654054A (en) * | 2021-07-27 | 2021-11-16 | 安徽斯的得电力工程有限公司 | Pipeline cooling device for coking of incinerator |
-
2016
- 2016-07-06 CN CN201620779137.6U patent/CN206111921U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018192095A1 (en) * | 2017-04-20 | 2018-10-25 | 周敏青 | Sealing sleeve and telescopic ladder |
| US10934776B2 (en) | 2017-04-20 | 2021-03-02 | Minqing ZHOU | Closure cover and extension ladder |
| CN107969835A (en) * | 2017-11-24 | 2018-05-01 | 无锡南理工新能源电动车科技发展有限公司 | A kind of slow drop formula thing to sit on |
| DE202018101804U1 (en) | 2018-03-20 | 2018-08-24 | Zhejiang Mingfeng Industry & Trade Co., Ltd. | New air cylinder for a fold-out ladder |
| CN109497876A (en) * | 2018-12-17 | 2019-03-22 | 庄顺凯 | A kind of Novel paper-extracting box |
| CN113654054A (en) * | 2021-07-27 | 2021-11-16 | 安徽斯的得电力工程有限公司 | Pipeline cooling device for coking of incinerator |
| CN113654054B (en) * | 2021-07-27 | 2024-04-02 | 安徽斯的得电力工程有限公司 | Pipeline cooling device for burning of incinerator |
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| GR01 | Patent grant |