CN205654282U - Prevent pounding steady extension ladder of hand shrink - Google Patents
Prevent pounding steady extension ladder of hand shrink Download PDFInfo
- Publication number
- CN205654282U CN205654282U CN201620453917.1U CN201620453917U CN205654282U CN 205654282 U CN205654282 U CN 205654282U CN 201620453917 U CN201620453917 U CN 201620453917U CN 205654282 U CN205654282 U CN 205654282U
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- ladder
- section
- stull
- festival
- pipe
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Abstract
The utility model relates to a prevent pounding steady extension ladder of hand shrink, its ladder festival that includes a plurality of sliding connection, the terraced festival is managed and is connected two at two ladders of the left and right sides including setting up the stull of ladder pipe, the stull with the last end connection of ladder pipe, the ladder pipe cartridge of going up the ladder festival that is located the top is terraced intraductal in the descending stair festival that is located the below, and except that the ladder of top the festival, the interior both ends of controlling of stull of each ladder festival all are provided with locking device, each the locking device cooperation is provided with an unblock and dials the piece, lower extreme that the unblock was dialled set up in stull of each ladder festival is outside, and except that the ladder of bottom the festival, the ladder pipe of each ladder festival is gone up the cover and is equipped with the rubber circle. The utility model discloses go up suit rubber circle at the ladder pipe of each ladder festival, when a lesson ladder wherein falls the withdrawal coming festival, the terraced stull that saves of a lesson under the lower extreme that can not make the unblock plate of ladder festival is touched and produce the maloperation to avoid the condition that takes place crowded hand, guaranteed operating personnel's safety.
Description
Technical field
This utility model relates to ladder field, is specifically related to anti-hands of pounding and shrinks stable extension ladder.
Background technology
At present, carry out aloft keeping in repair or during upkeep operation, it is often necessary to use ladder.In order to be adapted to widely requirement for height, the longer the better for ladder.But exist compared with long ladder and take the defect that volume is big, carry and collect inconvenience.In order to overcome drawbacks described above, extension ladder arises at the historic moment.But there is unreasonable part in the design of existing extension ladder, the spanner of the locking device of such as telescopic ladder arranges structure and position is unreasonable, shrinking when, the retraction of one section of ladder can cause other section of ladder together to be retracted, and this situation is easily caused workmen and falls injured, and safety is poor.And the existing extension ladder speed when shrinking, operator has little time finger of transferring to other use, causes injuring by a crashing object, there is potential safety hazard.
In view of this, a kind of extension ladder that can ensure that operator safety of invention is needed badly.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of anti-hands of pounding shrinks stable extension ladder.
To achieve these goals, the technical scheme that this utility model is taked is as follows:
A kind of anti-hands of pounding shrinks stable extension ladder, its key technology is, it includes multiple section of ladder being slidably connected, described section of ladder includes two the ladder pipes being arranged on the left and right sides and connects the stull of two described ladder pipes, described stull is connected with the upper end of described ladder pipe, the terraced pipe of upper section of ladder above is plugged in the ladder pipe of the lower section of ladder being positioned at lower section, in addition to the section of ladder of top, in the stull of each section of ladder, two ends, left and right are provided with locking device, each described locking device is equipped with one and unlocks pulling part, the lower end of described unblock pulling part is arranged at outside the stull of described each section of ladder, in addition to the section of ladder of lowermost end, it is set with rubber ring on the terraced pipe of each section of ladder.
Further improve as this utility model, outside the described lower end unlocking pulling part is positioned at described stull and be positioned at bottom described stull.
Further improving as this utility model, the height of described rubber ring is more than the height of described unblock pulling part exposed part.
Further improving as this utility model, the height of described rubber ring is 10-20mm.
Further improving as this utility model, the lower end of described unblock pulling part is provided with draw ring.
Further improve as this utility model, described locking device includes the alignment pin being arranged in described stull and presses the stage clip of described alignment pin, the bottom of described ladder pipe is provided with the location hole suitable with described alignment pin, and the upper end of described unblock pulling part is connected with described alignment pin.
Further improve as this utility model, described ladder pipe top is provided with joint, the connecting portion of straight tube-like it is provided with on described joint, described stull two ends are connected with described joint by described connecting portion, described alignment pin and stage clip are positioned at described connecting portion, the middle part of described unblock pulling part and described connecting portion and are hinged.
Further improving as this utility model, in described section of ladder, the section of ladder bottom being positioned at bottommost is fixedly installed one or more fixing section of ladder.
Further improve as this utility model, the stull of the section of ladder of bottom is provided with bundling belt.
Further improve as this utility model, bottom described ladder pipe, be provided with plug.
Compared with prior art, having the beneficial effect that acquired by this utility model:
This utility model is set with rubber ring on the terraced pipe of each section of ladder, when wherein a joint section of ladder declines retraction when, the lower end unlocking plate that will not make section of ladder touches stull of next joint section of ladder, it is to avoid maloperation, other section of ladder will be caused together to retract because of a retraction.Simultaneously because it is spacing to be provided with rubber ring between the stull of the stull of upper section of ladder and lower section of ladder, thus without the situation of hands occurs to squeeze, it is ensured that the safety of operator.
The height of this utility model rubber ring exposes the height of the part of stull more than described unblock pulling part, to guarantee when the lower end unlocking plate of upper section of ladder will not touch the stull of next joint section of ladder, the section of ladder avoiding top is retracted, and produces maloperation, brings danger to operator.
The height of this utility model rubber ring is advisable with 10-20mm, can give one placement space of hands, it is to avoid the situation of hands occurs to squeeze.
The lower end of unblock pulling part of the present utility model is provided with draw ring, when needs retraction section of ladder, it is only necessary to right-hand man pulls draw ring to both sides simultaneously, and a finger can be simply done operation, simple and practical.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is this utility model locking device structure schematic diagram；
Accompanying drawing 3 is this utility model released state structural representation；
In the accompanying drawings: 1 section of ladder, 101 times section of ladders, section of ladder on 102,1-1 ladder pipe, 1-2 stull, 1-3 joint, 1-4 connecting portion, hole, 1-5 location, 2-1 alignment pin, 2-2 stage clip, 3 fix section of ladder, 4 rubber rings, 5 unlock pulling part, 6 collets, 7 bundling belts, 8 plugs.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, with specific embodiment, utility model is carried out clear, complete description below in conjunction with the accompanying drawings.
Anti-hands of pounding as shown in accompanying drawing 1,2 and 3 shrinks stable extension ladder, it includes multiple section of ladder 1 being slidably connected, described section of ladder 1 includes two the terraced pipe 1-1 being arranged on the left and right sides and connects the stull 1-2 of two described ladder pipe 1-1, described stull 1-2 is connected with the upper end of described ladder pipe 1-1, wherein, the terraced pipe 1-1 of upper section of ladder 102 above is plugged in the terraced pipe 1-1, the terraced pipe 1-1 of upper section of ladder 102 of the lower section of ladder 101 being positioned at lower section and the terraced pipe 1-1 matched in clearance of lower section of ladder 101.It is provided with plug 8 bottom described ladder pipe 1-1, make ladder pipe 1-1 bottom lock, plug 8 and the terraced pipe 1-1 matched in clearance of lower section of ladder 102, the terraced pipe 1-1 entirety so going up section of ladder 102 is equivalent to piston, upper section of ladder 102 is during declining, and air-flow is slowly discharged from the gap of two terraced pipe 1-1, plays cushioning effect, avoid the quick landing of section of ladder 102, cause damage.
In addition to the section of ladder 1 of top, in the stull 1-2 of each section of ladder 1, two ends, left and right are provided with locking device, each described locking device is equipped with one and unlocks pulling part 5, the lower end of described unblock pulling part 5 is arranged at outside the stull 1-2 of described each section of ladder, in addition to the section of ladder 1 of lowermost end, the terraced pipe 1-1 of each section of ladder 1 being set with rubber ring 4, the height of rubber ring 4 is advisable with 10-20mm, on the basis of can taking up room after reducing contraction, it is ensured that the use safety of operator as far as possible.
The terraced pipe 1-1 top of the present embodiment is provided with joint 1-3, and described joint 1-3 is provided with the connecting portion 1-4 of straight tube-like, and described stull 1-2 two ends are connected with described joint 1-3 by described connecting portion 1-4, and locking device is positioned at described connecting portion 1-4.
The locking device of the present embodiment includes the alignment pin 2-1 being arranged in described stull and presses the stage clip 2-2 of described alignment pin 2-1, described alignment pin 2-1 and stage clip 2-2 is positioned at described connecting portion 1-4, the bottom of described ladder pipe 1-1 is provided with and described hole, location 1-5 suitable for alignment pin 2-1, the upper end of described unblock pulling part 5 is connected with described alignment pin 2-1, the middle part of described unblock pulling part 5 and described connecting portion 1-4 are hinged, outside the described lower end unlocking pulling part 5 is positioned at described stull 1-2 and be positioned at bottom described stull 1-2, alignment pin 2-1 can be made to be subjected to displacement when stirring unblock pulling part 5, stir for convenience, the lower end unlocking pulling part 5 is provided with draw ring 5-1, have only to the when of operation catch on draw ring with finger.
Stage clip 2-2 is in compressive state, when the terraced pipe 1-1 of upper section of ladder 102 is drawn upwardly out, when the location hole 1-5 being positioned at this ladder pipe 1-1 bottom moves to the position of alignment pin 2-1, under the effect of stage clip 2-2, alignment pin 2-1 extend in the hole 1-5 of location, makes section of ladder 102 be fixed on this position.
The upper end unlocking pulling part 5 is connected with described alignment pin 2-1, the middle part and the described connecting portion 1-4 that unlock pulling part 5 are hinged, outside the described lower end unlocking pulling part 5 is positioned at described stull 1-2 and be positioned at bottom described stull 1-2, when needing to make section of ladder retract, the lower end unlocking pulling part 5 is stirred to the outside of section of ladder, the upper end unlocking pulling part 5 drives alignment pin 2-1 to extract out from the hole 1-5 of location, under gravity, upper section of ladder 102 declines retraction automatically, due to spacing to a upper section of ladder of rubber sleeve during retraction, it is to avoid the unblock pulling part triggering a upper section of ladder produces maloperation.
Owing to upper section of ladder is set in lower section of ladder, from the bottom to top, the terraced pipe diameter of section of ladder tapers into extension ladder.
Section of ladder 1 bottom being positioned at bottommost is fixedly installed one or more fixing section of ladder 3, and in the present embodiment, section of ladder 1 bottom being positioned at bottommost is fixedly installed two fixing section of ladders 3, and the size of described fixing section of ladder 3 is equivalently-sized with the section of ladder 1 being positioned at bottommost.Arranging collet 6 bottom the terraced pipe of the fixing section of ladder 3 of bottommost, the bottom face of described collet 6 is lambdoid domatic.Extension ladder tilts when, domatic can be good at contacts herringbone with ground, and is front and back domatic, easy to use, lambdoid domatic on be provided with anti-skidding lug, nib.
As it is shown in figure 1, be provided with bundling belt 7 on the stull 1-2 of the section of ladder 1 of bottom.When not using, each section of ladder is retracted, and the stull of the section of ladder that can slide is bundled by bundling belt 7, prevents it from arbitrarily sliding, conveniently transport and deposit.
Skilled artisan would appreciate that; locking device of the present utility model can be replaced by other similar structures; as long as the effect of section of ladder can be reached to lock; although the present embodiment unlock pulling part lower end be positioned at stull 1-2 outside and position correspondence bed ladder joint stull; but do not affect the application to have adjusted the restriction of technical scheme and the protection unlocking pulling part position for him, all should regard as belonging under innovation and creation framework of the present utility model.
The above embodiment is only preferred embodiment of the present utility model, and the not feasible enforcement of this utility model is exhaustive.For persons skilled in the art, any obvious change done to it on the premise of without departing substantially from this utility model principle and spirit, within all should being contemplated as falling with claims of the present utility model.
Claims (10)
- null1. an anti-hands of pounding shrinks stable extension ladder，It is characterized in that，It includes multiple section of ladder (1) being slidably connected，Described section of ladder (1) includes two ladders pipe (1-1) being arranged on the left and right sides and connects the stull (1-2) of two described ladders pipe (1-1)，Described stull (1-2) is connected with the upper end of described ladder pipe (1-1)，Ladder pipe (1-1) of upper section of ladder (102) above is plugged in ladder pipe (1-1) of the lower section of ladder (101) being positioned at lower section，In addition to the section of ladder of top，The two ends, stull (1-2) interior left and right of each section of ladder are provided with locking device，Each described locking device is equipped with one and unlocks pulling part (5)，The stull (1-2) that the lower end of described unblock pulling part (5) is arranged at described each section of ladder is outside，In addition to the section of ladder (1) of lowermost end，It is set with rubber ring (4) on ladder pipe (1-1) of each section of ladder (1).
- Anti-hands of pounding the most according to claim 1 shrinks stable extension ladder, it is characterised in that outside the lower end of described unblock pulling part (5) is positioned at described stull (1-2) and be positioned at described stull (1-2) bottom.
- Anti-hands of pounding the most according to claim 2 shrinks stable extension ladder, it is characterised in that the height of described rubber ring (4) is more than the height of described unblock pulling part (5) exposed part.
- Anti-hands of pounding the most according to claim 1 shrinks stable extension ladder, it is characterised in that the height of described rubber ring (4) is 10-20mm.
- Anti-hands of pounding the most according to claim 1 shrinks stable extension ladder, it is characterised in that the lower end of described unblock pulling part (5) is provided with draw ring (5-1).
- 6. shrink stable extension ladder according to the anti-hands of pounding described in any one of claim 1-5, it is characterized in that, described locking device includes the alignment pin (2-1) being arranged in described stull (1-2) and presses the stage clip (2-2) of described alignment pin (2-1), the bottom of described ladder pipe (1-1) is provided with the location hole (1-5) suitable with described alignment pin (2-1), and the upper end of described unblock pulling part (5) is connected with described alignment pin (2-1).
- Anti-hands of pounding the most according to claim 6 shrinks stable extension ladder, it is characterized in that, described ladder pipe (1-1) top is provided with joint (1-3), the connecting portion (1-4) of straight tube-like it is provided with on described joint (1-3), described stull (1-2) two ends are connected with described joint (1-3) by described connecting portion (1-4), described alignment pin (2-1) and stage clip (2-2) are positioned at described connecting portion (1-4), the middle part of described unblock pulling part (5) and described connecting portion (1-4) and are hinged.
- Anti-hands of pounding the most according to claim 1 shrinks stable extension ladder, it is characterised in that in described section of ladder (1), section of ladder (1) bottom being positioned at bottommost is fixedly installed one or more fixing section of ladder (3).
- Anti-hands of pounding the most according to claim 1 shrinks stable extension ladder, it is characterised in that be provided with bundling belt (7) in the stull (1-2) of the section of ladder (1) of bottom.
- Anti-hands of pounding the most according to claim 1 shrinks stable extension ladder, it is characterised in that: described ladder pipe (1-1) bottom is provided with plug (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620453917.1U CN205654282U (en) | 2016-05-18 | 2016-05-18 | Prevent pounding steady extension ladder of hand shrink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620453917.1U CN205654282U (en) | 2016-05-18 | 2016-05-18 | Prevent pounding steady extension ladder of hand shrink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654282U true CN205654282U (en) | 2016-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620453917.1U Active CN205654282U (en) | 2016-05-18 | 2016-05-18 | Prevent pounding steady extension ladder of hand shrink |
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| Country | Link |
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| CN (1) | CN205654282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837153A (en) * | 2017-01-23 | 2017-06-13 | 国家电网公司 | Extension ladder |
| CN116735364A (en) * | 2023-05-04 | 2023-09-12 | 青岛赛斯创新科技有限公司 | Instrument fracturing detection device |
-
2016
- 2016-05-18 CN CN201620453917.1U patent/CN205654282U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837153A (en) * | 2017-01-23 | 2017-06-13 | 国家电网公司 | Extension ladder |
| CN116735364A (en) * | 2023-05-04 | 2023-09-12 | 青岛赛斯创新科技有限公司 | Instrument fracturing detection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |