CN201292760Y - More piece collapsible insulating ladder - Google Patents
More piece collapsible insulating ladder Download PDFInfo
- Publication number
- CN201292760Y CN201292760Y CNU2009201012161U CN200920101216U CN201292760Y CN 201292760 Y CN201292760 Y CN 201292760Y CN U2009201012161 U CNU2009201012161 U CN U2009201012161U CN 200920101216 U CN200920101216 U CN 200920101216U CN 201292760 Y CN201292760 Y CN 201292760Y
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- CN
- China
- Prior art keywords
- ladder
- section
- spanner
- hollow
- joint
- 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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-
- 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
- E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
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- Ladders (AREA)
Abstract
The utility model discloses a multi-section telescopic type insulating ladder for the construction and the examination of power industry, which comprises hollow ladder feet and multi-section hollow ladder sections which are mutually matched in a sliding mode from bottom to top, mutual joints are provided with locking devices with spanners, and the spanner at the bottom is reversely assembled. When the spanners are artificially and forcibly pulled downwards, the bottom ladder section can contract to avoid safety accidents, in addition, the bottom ends of ladder rods of the ladder sections are fixed with elastic adhesive blocks to increase the friction among the ladder rods when the ladder rods relatively slide, greatly reduce reduction speed of the ladder sections when the ladder sections freely retract to avoid the crack of the bottom and the slipping of the ladder rods due to high speed in a stretching process. The ladder can be smoothly and conveniently expanded and contracted, can be safely used, is greatly reduced in the destroy degree and prolonged in the service life and can be used for climbing high for the construction and the examination of the power industry.
Description
Technical field
The utility model relates to a kind of apparatus of ascending a height, and refers in particular to a kind of ladder, the multi-joint telescoping formula insulating ladder that specifically a kind of power industry ascend operation is used.
Background technology
Ladder is the standing instrument of ascend operation, especially concerning relate to electric field the installation maintainer, be a kind of indispensable instrument.How to make ladder safe in utilization, convenient, take in the time to take the space approximately, become the problem that people pay close attention to.Chinese patent 2006201276698 discloses " a kind of contraction is extension ladder stably ", and the section of ladder of the connection of being slided mutually by more piece constitutes.This patent section of ladder shrinks by corresponding spanner and upwards promotes to control, so existence makes it the stressed possibility that section of ladder shrinks automatically that starts because of the false touch spanner, thereby very easily cause personal injury, and, shorten the application life of ladder because quick retraction can cause collision, the damage of terraced body; The hollow ladder side of each section of ladder of extension ladder bottom is connected with piston in addition, to form air pressure, slows down the speed of section of ladder free shrink, but owing to be matched in clearance between the ladder side inwall of described piston and bed ladder joint, so the slow effect and not obvious of falling.
The utility model content
The technical problems to be solved in the utility model provides a kind of steady, safe multi-joint telescoping formula insulating ladder that shrinks, and adorns the spanner of bottom position is counter, and only when artificially firmly pulling down wrench, the bottom section of ladder just can shrink, and can avoid the generation of security incident; Be fixed with elastic gum in addition in the terraced bar bottom of section of ladder stifled, friction when sliding relatively between terraced bar to increase, and the reduction of speed when slowing down section of ladder greatly and freely bouncing back, splitting bottom avoiding, excessive velocities causes terraced bar slippage in the time of also can avoiding stretching.It is steady, convenient that this ladder is stretched, contracted, and operation, safe in utilization alleviates ladder damage degree greatly, prolongs the application life of ladder.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of multi-joint telescoping formula insulating ladder comprises hollow foot of ladder and at least two sections hollow section of ladders,
Described foot of ladder comprises two hollow terraced bars and steps on beam with at least one hollow level that terraced bar is fixed in one,
Non-top section of ladder comprises that two hollow cylinders ladder bars and a hollow square column shape level step on beam,
All be slidingly matched between following section of ladder and foot of ladder, between each section of ladder, and be provided with locking device in the connection place by fitting sleeve dress between corresponding terraced bar;
Described joint is located at terraced bar upper end, be stuck in non-top ladder bar upper limb and outer wall and be fixed on the terraced bar, and have to stepping on the conjugation handle that the beam direction is extended, conjugation handle insert in step on beam interior and the two closely cooperate;
Locking device is located at and is stepped in the beam and bound is positioned at conjugation handle and steps between beam, comprise the spring limit base, spring, lock pin, the spanner that connect successively, the terraced bar upper end of section of ladder is provided with the lockpin hole suitable with lock pin with the corresponding position, bottom, step on and have the slot that extends to terraced bar direction on the beam diapire, be provided with spanner corresponding to the spanner position on the conjugation handle and stretch out groove, spanner through spanner stretch out groove, slot stretches out downwards, is located at the lock pin control member of spanner for upwards promoting to make lock pin contract and receive on the section of ladder
The special feature of described multi-joint telescoping formula insulating ladder is that described foot of ladder, section of ladder, joint, spanner are insulation materials matter; The terraced bar bottom of each section of ladder is fixed with the elasticity shutoff, is interference fit between the inwall of shutoff and hypomere ladder bar; Be located at the lock pin control member of spanner on the foot of ladder for upwards promoting lock pin is ejected.This structure has realized that the spanner of bottom position is counter and has adorned that only when artificially firmly pulling down wrench, the bottom section of ladder just can shrink, and the phenomenon of contraction can not take place to start because of false touch, avoids the generation of security incident; In addition, be fixed with elastic gum in the terraced bar bottom of section of ladder stifled, friction when sliding relatively between terraced bar to increase, reduction of speed when slowing down section of ladder greatly and freely bouncing back, can prevent that also terraced bar is because of end split under the stressed generation, prolong the application life of ladder, excessive velocities causes terraced bar slippage in the time of also can avoiding stretching.
As optimization, the elasticity shutoff is an annular resilient electro-insulating rubber circle, is sandwiched in up and down between two inverted T-shaped ambroin matter plugs; The radial section of upper plug head and the end of corresponding terraced bar are complementary, path one end plug go into epimere ladder bar bottom hollow position and and this epimere ladder bar between closely cooperate, the center is provided with the upwards blind hole of depression; Shutoff is placed in the miner diameter end bottom of lower end cap and the two closely cooperates, this miner diameter end insert in the blind hole and and the upper plug head wall between interference fit.Such plugging structure and fixed form, guarantee between shutoff and thin terraced bar strong bonded, with thick terraced bar between enough rub the purpose of slowing down the automatic contraction speed of ladder with realization greatly.
As improvement of the present utility model, the spanner handle end on the described foot of ladder is provided with the control draw ring.This structure can conveniently pull down wrench shrinks section of ladder automatically.
The top of top section of ladder is provided with insulating joint and insulated hollow stull, and the conjugation handle of joint closely inserts the stull two ends.This structure design can make between the ladder bar of top and support mutually through stull, and is not yielding, improves the ladder weight capacity.
The top section of ladder is provided with the insulation that is used for the ladder end is fixed on the supporter and links up with.More firm in the time of can making whole ladder be against on the supporter.
The described back end face of stepping on is a horizontal plane.Can guarantee that human foot is enough big with the contact area of stepping on beam, prevent that foot from from stepping on slippage on the beam, guaranteeing personal safety.
Step on and be with the anti-sliding sleeve of insulation on the beam.Friction in the time of can increasing human foot and step on beam and contact prevents that foot from from stepping on slippage on the beam, guaranteeing personal safety.
Step on beam, the stull two ends are with and step on beam, the close-fitting insulation clip of stull.Can prevent to step on beam, occur splitting when stull is stressed, prolong the application life of ladder, guarantee safe in utilization.
The terraced bar bottom of foot of ladder has the insulation sleeve with anti-skidding line.Can increase the friction on foot of ladder and ground, reach and produce the bottom slippage when preventing that terraced body is stressed, guarantee safe in utilization.
The multi-joint telescoping formula insulating ladder of said structure provided by the utility model only needs outwards to spur stull gently in use, steps on beam and locking gets final product; Use the perpendicular attitude ladder in back can spur the bottom spanner as required downwards, can pursue joint retraction automatically from bottom to top, or upwards promote non-bottom spanner, realize each section section of ladder more than this spanner that bounces back automatically; Also ladder can be bordering on to keep flat and push away or draw corresponding spanner to carry out the craft receipts that contract by joint.
The obtained technological progress of the utility model is: adorn the spanner of bottom position is counter, only when firmly pulling down wrench intentionally, the bottom section of ladder just can shrink, and can avoid the generation of security incident; Be fixed with elastic gum in addition in the terraced bar bottom of section of ladder stifled, friction when increasing the alternate relative slip of ladder, and the reduction of speed when slowing down section of ladder greatly and freely bouncing back, splitting bottom avoiding, excessive velocities causes terraced bar slippage in the time of also can avoiding stretching.It is steady, convenient that this ladder is stretched, contracted, and operation, safe in utilization alleviates ladder damage degree greatly, prolongs the application life of ladder, ascend operation when can be used for the power industry Construction and Maintenance.
The utility model is described in further detail below in conjunction with Figure of description.
Description of drawings
Fig. 1 is the structural representation of the utility model contraction state;
The exploded view that cooperatively interacts between the bottom section of ladder of Fig. 2 for foot of ladder and its top;
Fig. 3 is the also schematic diagram of the relation that is coupled to each other of lock-out state that stretches between terraced bar;
Fig. 4 is for stepping on the enlarged drawing of the upward view of beam among Fig. 3;
Fig. 5 is the enlarged drawing of the right view of spanner among Fig. 3;
Fig. 6 is the connecting relation schematic diagram that shrinks the back state between foot of ladder and one section section of ladder above it.
Among the figure: the 1-foot of ladder, the 2-section of ladder, 3-ladder bar, 4-steps on beam or stull, the 5-joint, 6-conjugation handle, 8-spring limit base, 9-spring, the 10-lock pin, 11-spanner, 12-pin-and-hole, 13-slot, the 14-spanner stretches out groove, the 15-draw ring, and the 16-clip, 17-prevents sliding sleeve, 18-ties up band, 19-abrasion-proof insulating gum cover, 21-upper plug head, the shutoff of 22-elasticity, the 23-lower end cap, 24-blind hole, 25--pole.
The specific embodiment
Figure 1 shows that a kind of multi-joint telescoping formula insulating ladder, comprise hollow foot of ladder 1 and seven sections hollow section of ladders 2 from bottom to top.
The hollow beam 4 of stepping on of level in two terraced bars 3 of the perpendicular hollow cylinder of putting and two back-shaped cross sections about foot of ladder 1 comprises.
The hollow beam 4 of stepping in two terraced bars 3 of the perpendicular cylinder type hollow of putting and a back-shaped cross section about every section section of ladder 2 comprises.The beam 4 of stepping on of top section of ladder plays the stull effect.
With reference to figure 2-Fig. 6,1 of following section of ladder and foot of ladder, 2 of each section of ladders all are slidingly matched by 3 joint 5 suits of corresponding terraced bar, and are provided with locking device in the connection place, about locking device has two groups, are symmetrical arranged.
Locking device is located at and is stepped in the beam 4 and bound is positioned at conjugation handle 6 and steps between beam 4 walls, comprises the cylindrical lock pin 10 of spring limit base 8, spring 9, reducing, the spanner 11 of connection successively.Terraced bar 3 upper ends of section of ladder 2 and corresponding position, bottom are provided with the lockpin hole 12 suitable with lock pin 10, and the thin neck place of lock pin 10 is blocked on the top of spanner 11, and lower hinge is on conjugation handle 6.Step on and have the slot 13 that extends to terraced bar 3 directions on beam 4 diapires, be provided with spanner corresponding to spanner 11 positions on the conjugation handle 6 and stretch out groove 14, spanner 11 through spanner stretch out groove 14, slot 13 stretches out in downwards and steps on outside the beam 4.
Be located at the lock pin control member of spanner 11 on the section of ladder 2, be located at the lock pin control member of spanner 11 on the foot of ladder 1 for upwards promoting lock pin 10 is ejected for upwards promoting to make lock pin 10 contract and receive.
Foot of ladder 1, section of ladder 2, joint 5, spanner 11 are made for insulation materials.
With reference to figure 3 and Fig. 6, terraced bar 3 bottoms of each section of ladder 2 are fixed with elasticity shutoff 21, are interference fit between the inwall of shutoff and hypomere ladder bar 3.Elasticity shutoff 21 is circular elastic insulated rubber ring, is sandwiched in up and down two inverted T-shaped ambroin matter plugs 22 and 23; The end of the radial section of upper plug head 22 and epimere ladder bar 3 is complementary, miner diameter end fill in epimere ladder bar 3 bottom hollow positions and and 3 on this ladder bar closely cooperate, the center is provided with the upwards blind hole 24 of depression; Shutoff 21 is placed in the miner diameter end bottom of lower end cap 23 and the two closely cooperates, this miner diameter end insert in the blind hole 24 and and lower end cap 23 walls between interference fit.
The top of top section of ladder 2 is provided with insulating joint 5 and insulated hollow stull 4, and the conjugation handle 6 of joint closely inserts stull 4 two ends.
Top section of ladder 2 is provided with the insulation that is used for the ladder end is fixed on the supporter and links up with.
Step on and be with the anti-sliding sleeve 17 of insulation on the beam.
Step on beam and stull 4 two ends and be with and step on beam or stull 4 close-fitting insulation clips 16.
The terraced bar bottom of foot of ladder 1 is with the abrasion-proof insulating gum cover 19 with anti-skidding line.
Be fixed with on the foot of ladder 1 and tie up band 18, be used for the ladder that contracts after receiving is tied up in stepping on Liang4Chu, can not skid off, conveniently move, take in because of moving automatically.
Claims (10)
1, a kind of multi-joint telescoping formula insulating ladder comprises hollow foot of ladder and at least two sections hollow section of ladders,
Described foot of ladder comprises two hollow terraced bars and steps on beam with at least one hollow level that terraced bar is fixed in one,
Non-top section of ladder comprises that two hollow terraced bars and a hollow level step on beam,
All be slidingly matched between following section of ladder and foot of ladder, between each section of ladder, and be provided with locking device in the connection place by fitting sleeve dress between corresponding terraced bar;
Described joint is located at terraced bar upper end, be stuck in non-top ladder bar upper limb and outer wall and be fixed on the terraced bar, and have to stepping on the conjugation handle that the beam direction is extended, conjugation handle insert in step on beam interior and the two closely cooperate;
Locking device is located at and is stepped in the beam and bound is positioned at conjugation handle and steps between beam, comprise the spring limit base, spring, lock pin, the spanner that connect successively, the terraced bar upper end of section of ladder is provided with the lockpin hole suitable with lock pin with the corresponding position, bottom, step on and have the slot that extends to terraced bar direction on the beam diapire, be provided with spanner corresponding to the spanner position on the conjugation handle and stretch out groove, spanner through spanner stretch out groove, slot stretches out downwards, is located at the lock pin control member of spanner for upwards promoting to make lock pin contract and receive on the section of ladder
It is characterized in that: described foot of ladder, section of ladder, joint, spanner are insulation materials matter; The terraced bar bottom of each section of ladder is fixed with the elasticity shutoff, is interference fit between the inwall of shutoff and hypomere ladder bar; Be located at the lock pin control member of spanner on the foot of ladder for upwards promoting lock pin is ejected.
2, multi-joint telescoping formula insulating ladder according to claim 1, it is characterized in that: described elasticity shutoff is an annular resilient electro-insulating rubber circle, is sandwiched in up and down between two inverted T-shaped ambroin matter plugs; The end of upper plug head radial section and corresponding epimere ladder bar is complementary, path one end plug go into this epimere ladder bar bottom hollow position and and this ladder bar inwall between closely cooperate, the center is provided with the upwards blind hole of depression; Shutoff is placed in the miner diameter end bottom of little plug and the two closely cooperates, this miner diameter end insert in the blind hole and and the upper plug head wall between interference fit.
3, multi-joint telescoping formula insulating ladder according to claim 1 and 2, it is characterized in that: the spanner handle end on the described foot of ladder is provided with the control draw ring.
4, multi-joint telescoping formula insulating ladder according to claim 1 and 2, it is characterized in that: the top of described top section of ladder is provided with insulating joint and insulated hollow stull, and the conjugation handle of joint closely inserts the stull two ends.
5, multi-joint telescoping formula insulating ladder according to claim 1 and 2 is characterized in that: the top section of ladder is provided with the insulation that is used for the ladder end is fixed on the supporter and links up with.
6, multi-joint telescoping formula insulating ladder according to claim 1 and 2 is characterized in that: the described back end face of stepping on is a horizontal plane.
7, multi-joint telescoping formula insulating ladder according to claim 1 and 2 is characterized in that: step on and be with the anti-sliding sleeve of insulation on the beam.
8, multi-joint telescoping formula insulating ladder according to claim 1 and 2 is characterized in that: step on the beam two ends and be with and step on the close-fitting insulation clip of beam.
9, multi-joint telescoping formula insulating ladder according to claim 4, Qi Tete is: described stull two ends are with and the close-fitting insulation clip of stull.
10, multi-joint telescoping formula insulating ladder according to claim 1 and 2 is characterized in that: the terraced bar bottom of described foot of ladder has the insulation sleeve with anti-skidding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201012161U CN201292760Y (en) | 2009-01-06 | 2009-01-06 | More piece collapsible insulating ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201012161U CN201292760Y (en) | 2009-01-06 | 2009-01-06 | More piece collapsible insulating ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292760Y true CN201292760Y (en) | 2009-08-19 |
Family
ID=41006235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201012161U Expired - Fee Related CN201292760Y (en) | 2009-01-06 | 2009-01-06 | More piece collapsible insulating ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292760Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102808578A (en) * | 2012-07-24 | 2012-12-05 | 河南省电力公司信阳供电公司 | Telescopic meter-reading ladder |
| CN103255999A (en) * | 2013-05-21 | 2013-08-21 | 国家电网公司 | Folding telescopic induction type insulated ladder |
| WO2014016722A1 (en) * | 2012-07-25 | 2014-01-30 | Teletower.Com Limited | Telescopically collapsible fire escape ladder |
| CN107956415A (en) * | 2017-10-30 | 2018-04-24 | 中车长春轨道客车股份有限公司 | A kind of telescopic Emergency Ladder |
| CN108104705A (en) * | 2017-12-15 | 2018-06-01 | 国网山东省电力公司莒南县供电公司 | A kind of multifunction power maintenance ladder |
| CN108708670A (en) * | 2018-05-05 | 2018-10-26 | 郭斌 | A kind of ladder for building construction |
| CN109477358A (en) * | 2016-06-09 | 2019-03-15 | 泰利托儿康姆有限公司 | Bushing type extension ladder with regracting stablizing bar |
| CN110005333A (en) * | 2019-04-19 | 2019-07-12 | 国家电网有限公司 | Telescopic insulating ladder |
-
2009
- 2009-01-06 CN CNU2009201012161U patent/CN201292760Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102808578A (en) * | 2012-07-24 | 2012-12-05 | 河南省电力公司信阳供电公司 | Telescopic meter-reading ladder |
| WO2014016722A1 (en) * | 2012-07-25 | 2014-01-30 | Teletower.Com Limited | Telescopically collapsible fire escape ladder |
| CN104769206A (en) * | 2012-07-25 | 2015-07-08 | 泰利托尔康姆有限公司 | Telescopically collapsible fire escape ladder |
| JP2015526618A (en) * | 2012-07-25 | 2015-09-10 | テレタワー．コム リミテッド | Nested folding fire escape ladder |
| CN103255999A (en) * | 2013-05-21 | 2013-08-21 | 国家电网公司 | Folding telescopic induction type insulated ladder |
| CN109477358A (en) * | 2016-06-09 | 2019-03-15 | 泰利托儿康姆有限公司 | Bushing type extension ladder with regracting stablizing bar |
| CN109477358B (en) * | 2016-06-09 | 2020-12-15 | 泰利托儿康姆有限公司 | Foldable ladder |
| CN107956415A (en) * | 2017-10-30 | 2018-04-24 | 中车长春轨道客车股份有限公司 | A kind of telescopic Emergency Ladder |
| CN108104705A (en) * | 2017-12-15 | 2018-06-01 | 国网山东省电力公司莒南县供电公司 | A kind of multifunction power maintenance ladder |
| CN108708670A (en) * | 2018-05-05 | 2018-10-26 | 郭斌 | A kind of ladder for building construction |
| CN110005333A (en) * | 2019-04-19 | 2019-07-12 | 国家电网有限公司 | Telescopic insulating ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20120106 |