CN105569552A - Automatic extension ladder - Google Patents
Automatic extension ladder Download PDFInfo
- Publication number
- CN105569552A CN105569552A CN201610096066.4A CN201610096066A CN105569552A CN 105569552 A CN105569552 A CN 105569552A CN 201610096066 A CN201610096066 A CN 201610096066A CN 105569552 A CN105569552 A CN 105569552A
- Authority
- CN
- China
- Prior art keywords
- ladder
- air
- lifting gear
- gasholder
- telescoping tube
- 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.)
- Granted
Links
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 20
- 230000001174 ascending effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/06—Securing devices or hooks for parts of extensible ladders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses an automatic extension ladder to achieve the technical effects that all extension units can automatically ascend, and descending is slow after using. The adopted technological means is that a powder device is added based on an existing slow descent extension ladder, wherein the power device is composed of an air pump and an air storage tank which are communicated through a breather pipe; the communicated air storage tank only allows air suction and does not allow air out, a branching pipe is connected to the breather pipe, the branching pipe is connected with air inlets in two lifting gears and then communicated with the air storage tank again through a communication pipe, and whether air out is allowed or not after communication is controllable; the lifting gears are provided with controllable air outlets, and the air pump provides power to drive the lifting gears in the extension ladder to ascend and finally drive all the extension units to ascend; after ascending is finished, the air storage tank is pressurized to the maximum, and the air pump stops working; after ladder using, a solenoid valve on the air storage tank is controlled to be switched on so that air can rush out, and the slow descending effect is achieved.
Description
Technical field
The present invention relates to a kind of ladder, specifically, is a kind of extension ladder possessing automatic lifting.
Background technology
Ladder is a kind of common climbing tool for installation, maintenance, existing common ladder is generally divided into scalable and non-telescoping two kinds, telescopic ladder due to its carry, convenient storage and widely using, but this kind of ladder needs manual one stretching telescopic unit successively comparatively to bother when using, and non-telescoping ladder is comparatively convenient when using, as long as put toward corresponding maintenance ground one, but carry and store the space that needs are larger, therefore market is badly in need of a easy to carry and extension ladder that automatically can rise, slowly decline.
Summary of the invention
In view of the defect existing for existing ladder, technical problem to be solved by this invention is to provide a kind of extension ladder that automatically can rise, slowly decline.
For realizing above-mentioned effect, extension ladder provided by the invention is achieved through the following technical solutions: ladder, described ladder is socketed to form by multiple hollow telescopic unit, pull up ladder height by stretching or promoting less telescopic unit, and each telescopic unit after stretching is by elastic locking device fixation fixed thereon, lifting gear, described lifting gear is put in the supported on both sides post of each telescopic unit of described ladder, playing a protective role, it is too fast to prevent ladder from falling after rise, also be coordinate ladder lifting simultaneously, described lifting gear is socketed to form by many hollow telescoping tubes, and bottom each telescoping tube except outermost telescoping tube, be all fixed with the larger telescoping tube internal diameter close-fitting piston outer with being socketed in it, be fixed together by a fixed head and ladder telescopic unit support column internal diameter bottom outermost telescoping tube, in order to make support body and lifting gear simultaneous retractable, the thinnest telescoping tube of above-mentioned lifting gear need be minimum with ladder telescopic unit fix, power set, described power set are used for each hollow telescoping tube pulling motion in described lifting gear, be made up of an air pump and a gasholder, described air pump is by ventilating pipe and described gasholder UNICOM, gasholder after UNICOM only air inlet can not be given vent to anger, and a branch line is connected on above-mentioned ventilating pipe, branch line is first connected with the air inlet on two lifting gears, afterwards by a cross over pipe and described gasholder UNICOM again, and whether give vent to anger after UNICOM and can control, described lifting gear is also provided with controllable venthole.Above-mentioned design realizes by the effect of air pump the effect that extension ladder rises automatically, and is realized the effect that slowly declines by gasholder and venthole.
In order to prevent its air pressure inside after gasholder supercharging from declining, by solenoid control, whether it is vented in cross over pipe above-mentioned gasholder.
Due to maintenance or when installing thing, the service time of extension ladder is more of a specified duration, the air pressure of its inside can reduction slowly until be zero, when use terminate after ladder do not reach slow effect of falling and easily will occur that telescopic unit falls the too fast finger generation security incident being pressed onto user, therefore when declining, need a gasholder to fall resistance for ladder provides one to delay, if and less just not the reaching of resistance slow falls effect, thus above-mentioned gasholder in it pressure need be greater than the pressure of each hollow telescoping tube lifting in lifting gear.
In order to promote above-mentioned effect further, its air inlet of described lifting gear is greater than venthole.Such design when extension ladder is slow fall time, the air pressure in slow descending device can not reach and slowly falls numerical value accordingly, and does not realize delaying and fall effect.
In order to promote the speed that extension ladder rises: whether its venthole of described lifting gear is given vent to anger by solenoid control, and described electromagnetic valve provides power by air pump battery.Such design is when extension ladder lifting, and its inside is in sealing state as far as possible, and the speed that pressure increases also can be faster.
Compared with prior art, the invention has the advantages that: not only make the slow effect of falling extension ladder and realizing automatically rising, and above-mentioned speed, during falling, safety factor is also higher, and user can have the more sufficient time.
Accompanying drawing explanation
Fig. 1 is the structural representation after automatic telescopic of the present invention ladder stretches.
Fig. 2 is the structural representation after Fig. 1 opens.
Fig. 3 is Fig. 2 B-B place locking device enlarged diagram.
Fig. 4 of the present inventionly stretches falling unit structural representation.
Fig. 5 is structural representation after Fig. 4 stretches.
Fig. 6 is Fig. 5 A-A place enlarged diagram.
Fig. 7 is power set of the present invention and lifting gear connection diagram.
As Fig. 1 to Fig. 7 description of reference numerals: 1, hollow ladder; 101, telescopic unit; 2, elastic locking device; 3, retractable support post; 4, hollow telescoping tube; 5, piston; 6, limit body; 7, air pump; 9, connecting rod; 10, gasholder; 11, ventilating pipe; 12, holding tank; 13, branched pipe; 14, cross over pipe; 15, venthole; 16, fixed head.
Detailed description of the invention
Below in conjunction with Figure of description, by specific embodiment, the present invention is further described.
Automatic telescopic ladder for shown in Fig. 1 to Fig. 3: it comprises the hollow ladder 1 be made up of 12 joint telescopic units 101, each telescopic unit 101 is all made up of with the connecting rod 9 being connected support column two retractable support posts 3, cannot pull out after adjacent two retractable support posts 3 stretch, realize by elastic locking device 2, the elastic locking device 2 of outermost telescopic unit 101 is fixed on connecting rod 9 dead ahead, its structure such as China Patent Publication No. is the locking mechanism that makes referrals in a kind of extension ladder patent disclosed in 101338649, remaining telescopic unit 101 elastic locking device 2 is all located at bottom connecting rod 9, its structure such as China Patent Publication No. is the locking mechanism that makes referrals in telescopic ladder disclosed in 1975092,
Composition graphs 4 to Fig. 6 further illustrates, all lifting gear is equipped with in above-mentioned hollow ladder 1 both sides retractable support post 3, above-mentioned lifting gear is by the hollow telescoping tube of more piece 4 and be fixed on the piston 5 often saved bottom hollow telescoping tube except outermost telescoping tube and form, above-mentioned outermost telescoping tube is fixed together with ladder Extention support pile 3 internal diameter by a fixed head 16, and have air inlet bottom fixed head 16, gas is made to enter in lifting gear, in order to prevent less hollow telescoping tube pull-out, also need to be provided with limit body 6 near the position of head at the hollow telescoping tube 4 of its adjacent outer, as shown in Figure 6, realize by tube outer surface outside suppressing an inside groove body, of course and also realize by alternate manner herein, as added limited block in pipe, further illustrate, the air vent of a break-through piston is all had bottom above-mentioned each piston 5, and each piston 5 external surface all has two holding tanks 12, holding tank 12 is built-in with sealing ring, sealing ring after installing need exceed outer surface of piston diameter, by such structure, after two adjacent hollow telescoping tubes 4 are socketed, due to the effect of groove body, less telescoping tube can not pull out, also reach close-fitting effect simultaneously, the hollow telescoping tube 4 of top and hollow ladder 1 inner side i.e. minimum retractable support post 3 endoporus are fixed, height after height after above-mentioned lifting gear stretches preferably stretches with hollow ladder is consistent, of coursing also can lower slightly point,
Above institute narrative structure except outermost telescoping tube be new technology by a fixed head and ladder Extention support pile internal diameter this technology that is fixed together, all the other technology in Chinese Patent Application No. are all: open in 201620040377.4 patents, the claimed technical essential of the present invention is described in following content;
As shown in Figure 7, for realizing a kind of power set that technical problem to be solved by this invention adopts, it is made up of an air pump 7 and a gasholder 10, above-mentioned air pump 7 and gasholder 10 are by ventilating pipe 11 UNICOM, gasholder 10 after UNICOM only air inlet can not be given vent to anger, for realize herein technology we can with reference to comparatively common in inflator field, do not elaborating at this, and by ventilating pipe 11 with fixed head 16 bottom air vent place be connected a branched pipe 13, the gas that air pump 7 is produced enters in gasholder 10 and two lifting gears and strengthens air pressure, realize the effect that each hollow telescoping tube 4 of two lifting gears rises automatically, thus realize the automatic effect risen of each telescopic unit 101 of extension ladder, during due to the operation of automatic telescopic ladder, time is longer, air pressure in its lifting gear can slowly reduce until be zero, in order to realize follow-up slowly falling effect, above-mentioned gasholder 10 is connected with branched pipe 13 by another cross over pipe 14, and whether to enter in cross over pipe 14 by the gas that electromagnetic valve realizes in gasholder 10 thus enter in lifting gear and reach decline resistance, if only can unusual length by its slow time of falling of gasholder 10 1 devices, therefore also need to arrange a venthole 15 on above-mentioned lifting gear, venthole 15 can be opened in outermost piston base herein, of course only otherwise affecting its effect also can open on hollow telescoping tube or other position of fixed head, but such design there will be again extension ladder rises comparatively slowly or the problem faster that declines, therefore also need further improvement, venthole 15 need be less than air inlet, and whether it opens also by solenoid control, above-mentioned each electromagnetic valve all provides power by the battery of air pump 7 for normally closed solenoid valve, and whether electromagnetic valve is energized and can be realized by the elastic locking device 2 of the positive front side of connecting rod 9, of coursing can be fixed in outermost retractable support post 3 when above-mentioned air pump 7 and gasholder 10 are installed also is fixed on connecting rod 9 by box body,
During use, Push switch air pump 7 runs and produces gas, an above-mentioned gas part enters in hollow telescoping tube 4 and its air pressure increase promotion each hollow telescoping tube 4 is moved upward, fixing each telescopic unit 101 due to the thinnest hollow telescoping tube 4 and minimum telescopic unit 101 also can lifting simultaneously, realize the effect automatically risen, the gas that air pump 7 produces carries out supercharging to gasholder 10 simultaneously, be how many because existing air pump 7 can control most hyperbar, can be automatically out of service after reaching most hyperbar, this technology can be from China Patent Publication No.: in 203614348U patent, automatic stopping after the supercharging of air pump 7 pairs of gasholder 10 terminates, now ladder stretches end already, this is the air pressure that the air pressure that can store due to gasholder 10 is greater than required for lifting gear lifting, as for the ladder of three meter eight, its air pressure stretching that falling unit rises completely is 1.6Pa, accumulator 10 internal gas pressure is 3Pa, after ladder uses and terminates, we need to promote the elastic locking device 2 on outermost telescopic unit 101, the unlatching of elastic locking device 2 with moving electromagnetic valve in the process of retraction, gas in gasholder 10 is gushed out instantaneously enter to stretch in falling unit, prevent its too fast whereabouts, the electromagnetic valve of venthole 15 is also opening simultaneously, portion gas can be discharged from venthole, realize delaying and fall effect, until extension ladder entirety is packed up as Fig. 1 formula,
Adopt the extension ladder after said structure, not only achieve the effect of rapid uplift, and the speed slowly declined also can slow down greatly, greatly reduces the probability that security incident occurs.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable modifications and changes to above-mentioned embodiment.Therefore; the present invention is not limited to detailed description of the invention disclosed and described above; also should fall in the protection domain of the claims in the present invention modifications and changes more of the present invention; in addition; although employ some particular term or title in manual; but these particular term or title are just for convenience of description, do not form any restriction to the present invention.
Claims (5)
1. an automatic telescopic ladder, comprising:
Ladder, described ladder is socketed to form by multiple hollow telescopic unit, pulls up ladder height by stretching or promoting less telescopic unit;
Lifting gear, described lifting gear is put in the supported on both sides post of each telescopic unit of described ladder, playing a protective role, it is too fast to prevent ladder from falling after rise, also be coordinate ladder lifting simultaneously, described lifting gear is socketed to form by many hollow telescoping tubes, and bottom each telescoping tube, being fixed with the larger telescoping tube internal diameter close-fitting piston outer with being socketed in it, outermost telescoping tube bottom piston and ladder telescopic unit support column internal diameter closely cooperate;
It is characterized in that:
Described automatic telescopic ladder also comprises:
Power set, described power set are used for each hollow telescoping tube pulling motion in described lifting gear, be made up of an air pump and a gasholder, described air pump is by ventilating pipe and described gasholder UNICOM, gasholder after UNICOM only air inlet can not be given vent to anger, and a branched pipe is connected on above-mentioned ventilating pipe, branched pipe is first connected with the air inlet on two lifting gears, afterwards by a cross over pipe and described gasholder UNICOM again, and whether give vent to anger after UNICOM and can control, described lifting gear is also provided with controllable venthole.
2. automatic telescopic ladder according to claim 1, is characterized in that: by solenoid control, whether it is vented in cross over pipe described gasholder.
3. automatic telescopic according to claim 1 and 2 ladder, is characterized in that: described gasholder in it pressure need be greater than the pressure of each hollow telescoping tube lifting in lifting gear.
4. automatic telescopic ladder according to claim 1, is characterized in that: its air inlet of described lifting gear is greater than venthole.
5. the automatic telescopic ladder according to claim 1 or 4, is characterized in that: whether its venthole of described lifting gear is given vent to anger by solenoid control, and described electromagnetic valve provides power by air pump battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096066.4A CN105569552B (en) | 2016-02-17 | 2016-02-17 | Automatic telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096066.4A CN105569552B (en) | 2016-02-17 | 2016-02-17 | Automatic telescopic ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105569552A true CN105569552A (en) | 2016-05-11 |
| CN105569552B CN105569552B (en) | 2017-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096066.4A Active CN105569552B (en) | 2016-02-17 | 2016-02-17 | Automatic telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105569552B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286512A (en) * | 2016-09-19 | 2017-01-04 | 东莞市千幻电子科技有限公司 | Expansion link and self-shooting bar |
| CN106351562A (en) * | 2016-10-08 | 2017-01-25 | 福州麦辽自动化设备有限公司 | Safe ladder stand of high-voltage cable tray on basis of plurality of energy storage rotary tables |
| CN106368597A (en) * | 2016-10-08 | 2017-02-01 | 福州麦辽自动化设备有限公司 | Energy storage turntable based on spiral control |
| CN107017583A (en) * | 2017-05-31 | 2017-08-04 | 广州供电局有限公司 | Cable cross street laying apparatus |
| CN108682176A (en) * | 2018-05-15 | 2018-10-19 | 贵州中安智慧城市建设有限公司 | A set of shutdown system with fault self-checking and fault message feedback function |
| CN108703576A (en) * | 2018-04-09 | 2018-10-26 | 东莞市皓奇企业管理服务有限公司 | The application method of intelligent and safe household bed |
| CN109630005A (en) * | 2019-01-08 | 2019-04-16 | 昆明理工大学 | A kind of liftable and the ladder being moved easily |
| CN114587911A (en) * | 2022-03-10 | 2022-06-07 | 信阳市中心医院 | Flusher capable of assisting in positioning and preventing cross infection and flushing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2647499A1 (en) * | 1989-05-29 | 1990-11-30 | Scle Sarl | Extensible telescopic ladder |
| CN102140872A (en) * | 2011-03-05 | 2011-08-03 | 宁波超腾照明电器有限公司 | Safety telescopic ladder capable of being automatically gathered in slow descending mode under action of air resistance |
| CN203145821U (en) * | 2013-04-23 | 2013-08-21 | 上虞晋亿园艺工具有限公司 | Extension ladder gradually unfolded level by level by utilizing air pressure |
| CN205370419U (en) * | 2016-02-17 | 2016-07-06 | 浙江明峰工贸有限公司 | Automatic extension ladder |
-
2016
- 2016-02-17 CN CN201610096066.4A patent/CN105569552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2647499A1 (en) * | 1989-05-29 | 1990-11-30 | Scle Sarl | Extensible telescopic ladder |
| CN102140872A (en) * | 2011-03-05 | 2011-08-03 | 宁波超腾照明电器有限公司 | Safety telescopic ladder capable of being automatically gathered in slow descending mode under action of air resistance |
| CN203145821U (en) * | 2013-04-23 | 2013-08-21 | 上虞晋亿园艺工具有限公司 | Extension ladder gradually unfolded level by level by utilizing air pressure |
| CN205370419U (en) * | 2016-02-17 | 2016-07-06 | 浙江明峰工贸有限公司 | Automatic extension ladder |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286512A (en) * | 2016-09-19 | 2017-01-04 | 东莞市千幻电子科技有限公司 | Expansion link and self-shooting bar |
| CN106351562A (en) * | 2016-10-08 | 2017-01-25 | 福州麦辽自动化设备有限公司 | Safe ladder stand of high-voltage cable tray on basis of plurality of energy storage rotary tables |
| CN106368597A (en) * | 2016-10-08 | 2017-02-01 | 福州麦辽自动化设备有限公司 | Energy storage turntable based on spiral control |
| CN107017583A (en) * | 2017-05-31 | 2017-08-04 | 广州供电局有限公司 | Cable cross street laying apparatus |
| CN108703576A (en) * | 2018-04-09 | 2018-10-26 | 东莞市皓奇企业管理服务有限公司 | The application method of intelligent and safe household bed |
| CN108682176A (en) * | 2018-05-15 | 2018-10-19 | 贵州中安智慧城市建设有限公司 | A set of shutdown system with fault self-checking and fault message feedback function |
| CN108682176B (en) * | 2018-05-15 | 2023-10-13 | 浙江泊客电子科技股份有限公司 | Parking system with fault self-checking and fault information feedback functions |
| CN109630005A (en) * | 2019-01-08 | 2019-04-16 | 昆明理工大学 | A kind of liftable and the ladder being moved easily |
| CN109630005B (en) * | 2019-01-08 | 2024-03-19 | 昆明理工大学 | Liftable just convenient ladder that removes |
| CN114587911A (en) * | 2022-03-10 | 2022-06-07 | 信阳市中心医院 | Flusher capable of assisting in positioning and preventing cross infection and flushing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105569552B (en) | 2017-10-27 |
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Address after: 322300, No. 53, Lingshan Road, Xincheng District, Panan, Zhejiang, Jinhua Patentee after: Zhejiang mingfeng industry & trade Co.,Ltd. Address before: 322200, No. 53, Lingshan Road, Xincheng District, Panan, Zhejiang, Jinhua Patentee before: ZHEJIANG MINGFENG INDUSTRY AND TRADE Co.,Ltd. |
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Denomination of invention: Automatic telescopic ladder Effective date of registration: 20220725 Granted publication date: 20171027 Pledgee: Pan'an sub branch of Zhejiang Chouzhou Commercial Bank Co.,Ltd. Pledgor: Zhejiang mingfeng industry & trade Co.,Ltd. Registration number: Y2022330001512 |
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Granted publication date: 20171027 Pledgee: Pan'an sub branch of Zhejiang Chouzhou Commercial Bank Co.,Ltd. Pledgor: Zhejiang mingfeng industry & trade Co.,Ltd. Registration number: Y2022330001512 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Automatic telescopic ladder Granted publication date: 20171027 Pledgee: Pan'an sub branch of Zhejiang Chouzhou Commercial Bank Co.,Ltd. Pledgor: Zhejiang mingfeng industry & trade Co.,Ltd. Registration number: Y2024330000978 |