CN102434087A - Adjustable balance weight and telescoping ladder with the balance weight - Google Patents
Adjustable balance weight and telescoping ladder with the balance weight Download PDFInfo
- Publication number
- CN102434087A CN102434087A CN2011102560112A CN201110256011A CN102434087A CN 102434087 A CN102434087 A CN 102434087A CN 2011102560112 A CN2011102560112 A CN 2011102560112A CN 201110256011 A CN201110256011 A CN 201110256011A CN 102434087 A CN102434087 A CN 102434087A
- Authority
- CN
- China
- Prior art keywords
- balance weight
- counterweight
- ladder
- double
- screw bolt
- 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.)
- Pending
Links
Images
Landscapes
- Ladders (AREA)
Abstract
The invention provides an adjustable balance weight and a telescoping ladder with the balance weight, wherein the balance weight is applied on the telescoping ladder, comprising a main body, a plurality of counterweights and an assembly structure. A first internal screw thread hole is arranged on the upper end of the main body to be connected with a wire rope on the telescoping ladder, and the counterweights is detachably connected with the lower end of the main body by the assembly structure. The balance weight of the telescoping ladder of the invention comprises a [the] plurality of counterweights, which are detachably connected with the main body by the assembly structure, thereby momentarily increasing or reducing the weight of the balance weight, and being convenient for being assembled and disassembled.
Description
Technical field
The present invention relates to the balance weight of extension ladder, relate in particular to the balance weight on the extension ladder of large excavator.
Background technology
The effect of excavator extension ladder is for the upper and lower excavator of staff, and shown in Fig. 1-3, it mainly comprises weld holder 1, ladder 5, fixed pulley 6 and balance weight 4.Balance weight 4 links together through wire rope 3 and ladder 5 on the track of 1 liang of side guard board of weld holder, and wire rope 3 is wrapped on the fixed pulley 6, and fixed pulley 6 both sides are balance weight 4 and ladder 5.When extension ladder was not drawn out, balance weight 4 is positioned at the track below, and was as shown in Figure 2.The stretched ladder that contracts when the staff need climb up excavator, balance weight 4 is moved on track, and balance weight 4 arrives the track tops, and when moving on stopping, ladder is pulled to extreme position; When personnel left ladder 5, balance weight 4 moved down owing to himself gravity, and ladder 5 rises and gets back to original position under the effect of balance weight 4, and is as shown in Figure 3.
The balance weight of the excavator extension ladder of prior art is an integral body, and its structure is as shown in Figure 4.Only the end in balance weight 4 is designed with the screwed hole 41 that is connected with wire rope 3.Fig. 5 is the A-A cross sectional view of balance weight 4.
Yet because the excavator balance weight of prior art is non-removable part; On the track of two side guard boards, slide, therefore, in the site assembly and use of excavator; Have and draw motionless or withdrawal when needing the weight of adjustment balance weight less than the situation of original position when ladder is flexible; Can only utilize ARC CUTTING to fall unnecessary weight or field Welding underweight, operation is inconvenience very, is unfavorable for the installation and the use of equipment.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of adjustable excavator extension ladder balance weight is provided, and extension ladder, with the heavy weight of adjustment simply with this balance weight.
The present invention realizes through following technical scheme:
The present invention provides a kind of adjustable balance weight; It is used for extension ladder; Comprise body, a plurality of counterweight and package assembly; The upper end of this body is designed with first internal thread hole, with this extension ladder on wire rope be connected, said counterweight removably is connected with the lower end of this body through this package assembly.
Wherein, This package assembly comprises double-screw bolt and nut, and the lower end of this body is provided with second internal thread hole that is connected with this double-screw bolt, offers through hole measure-alike and alignment in said a plurality of counterweights respectively; This double-screw bolt is passed said through hole successively; And the end that makes this double-screw bolt is screwed in this second internal thread hole, combines with this body, and screws to the counterweight of replacing bottom through this nut and this bolt.
Wherein, this package assembly also comprises packing ring, and it is between this nut and this counterweight bottom.
Wherein, said counterweight is the counterweight of a plurality of Different Weight.
Wherein, this double-screw bolt is the full thread double-screw bolt.
The present invention also provides a kind of extension ladder, and it comprises weld holder, ladder, fixed pulley, wire rope and balance weight, and these weld holder both sides have backplate; This balance weight links together through this wire rope and this ladder on the track of said two side guard boards, and this wire rope is wrapped on this fixed pulley, and these fixed pulley both sides are this balance weight and ladder; When this ladder was applied lower pulling force, this balance weight rose along with the decline of this ladder, when the lower pulling force removed this ladder; This balance weight moves down owing to himself gravity, and this ladder rises and gets back to initial position under the effect of this balance weight; This balance weight comprises body, a plurality of counterweight and package assembly; The upper end of this body is designed with first internal thread hole, with this extension ladder on wire rope be connected, said counterweight removably is connected with the lower end of this body through this package assembly.
Beneficial effect of the present invention is that the balance weight of excavator extension ladder of the present invention comprises a plurality of counterweights, and counterweight combines with body through package assembly is dismountable; Therefore, can increase or reduce the weight of balance weight at any time, easy disassembly; When having avoided the installation balance weight improper; Need on-the-spot ARC CUTTING to fall time-consuming work such as unnecessary weight or field Welding underweight, be convenient to operation, safeguard simple.
Description of drawings
Fig. 1 is that the master of existing excavator extension ladder looks sketch map, and wherein extension ladder is not drawn out.
Fig. 2 is the schematic side view of existing excavator extension ladder, and wherein extension ladder is not drawn out.
Fig. 3 is the schematic side view of existing excavator extension ladder, and wherein extension ladder is drawn out.
Fig. 4 is respectively the broken section front view of the balance weight of existing excavator extension ladder.
Fig. 5 is the sectional view along A-A line among Fig. 4.
Fig. 6 is the front view of the balance weight of excavator extension ladder of the present invention.
Fig. 7 is the sectional view along B-B line among Fig. 6.
The specific embodiment
Be elaborated below in conjunction with the accompanying drawing specific embodiments of the invention.Should be understood that the specific embodiment described herein only is used for explanation and explains the present invention, is not limited to the present invention.The balance weight of extension ladder of the present invention is mainly used in the extension ladder of large excavator, and present embodiment is that example describes to be used for the excavator extension ladder.
As shown in Figure 6, balance weight 10 of the present invention comprises body 11, a plurality of counterweight and package assembly 12.The first end 11a of body 11 (being the upper end of body 11) inwardly is designed with first internal thread hole 111, and to be connected with the wire rope (not shown), counterweight removably combines with the second end 11b (being the lower end of body 11) of body 11 through package assembly 12.
The counterweight of a plurality of Different Weight can be set,, be fit to the flexible situation of different ladders to constitute multiple weight combinations.The present invention to be setting gradually 4 first counterweights 13 and 4 second counterweights 14 are example, but not as limit.
Below will specify the assembling and the adjustment mode of balance weight.
Wherein, double-screw bolt 121 length are greater than the length of whole counterweight, and are full thread.
Among the present invention; Counterweight is counterweight and body to be stringed together with double-screw bolt just as the string sugarcoated haws with the assembling mode of body; Certainly, the assembling mode of counterweight and body is not limited to bolt, as long as can all should be within the scope of the present invention with the any-mode that counterweight removably combines with body; For example, mode such as grafting.
Balance weight of the present invention is located at the both sides of extension ladder weld holder backplate respectively, when needs plus-minuss counterweight amount, only need screw nut 122, after taking off or increasing counterweight, nut 122 is tightened got final product again.
Compare with the balance weight of existing integral type, the balance weight of excavator extension ladder of the present invention comprises the counterweight of a plurality of Different Weight, and counterweight combines with body through package assembly is dismountable; Therefore, can increase or reduce the weight of balance weight at any time, easy disassembly; When having avoided the installation balance weight improper; On-the-spot ARC CUTTING is fallen time-consuming work such as unnecessary weight or field Welding underweight, is convenient to operation, safeguards simple.
In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be regarded as the disclosed content of the present invention equally.
Claims (10)
1. adjustable balance weight; It is used for extension ladder; It is characterized in that: comprise body, a plurality of counterweight and package assembly; The upper end of this body is designed with first internal thread hole, with this extension ladder on wire rope be connected, said counterweight removably is connected with the lower end of this body through this package assembly.
2. adjustable balance weight according to claim 1; It is characterized in that: this package assembly comprises double-screw bolt and nut, and the lower end of this body is provided with second internal thread hole that is connected with this double-screw bolt, offers through hole measure-alike and alignment in said a plurality of counterweights respectively; This double-screw bolt is passed said through hole successively; And the end that makes this double-screw bolt is screwed in this second internal thread hole, combines with this body, and screws to the counterweight of replacing bottom through this nut and this bolt.
3. adjustable balance weight according to claim 2 is characterized in that: this package assembly also comprises packing ring, and it is between this nut and this counterweight bottom.
4. adjustable balance weight according to claim 3 is characterized in that: said counterweight is the counterweight of a plurality of Different Weight.
5. adjustable balance weight according to claim 2 is characterized in that: this double-screw bolt is the full thread double-screw bolt.
6. extension ladder, it comprises weld holder, ladder, fixed pulley, wire rope and balance weight, these weld holder both sides have backplate; This balance weight links together through this wire rope and this ladder on the track of said two side guard boards, and this wire rope is wrapped on this fixed pulley, and these fixed pulley both sides are this balance weight and ladder; When this ladder is applied lower pulling force; This balance weight rises along with the decline of this ladder, and when the lower pulling force removed this ladder, this balance weight moves down owing to himself gravity; This ladder is under the effect of this balance weight; Rise and get back to initial position, it is characterized in that: this balance weight comprises body, a plurality of counterweight and package assembly, and the upper end of this body is designed with first internal thread hole; With with this extension ladder on wire rope be connected, said counterweight removably is connected with the lower end of this body through this package assembly.
7. extension ladder according to claim 6; It is characterized in that: this package assembly comprises double-screw bolt and nut, and the lower end of this body is provided with second internal thread hole that is connected with this double-screw bolt, offers through hole measure-alike and alignment in said a plurality of counterweights respectively; This double-screw bolt is passed said through hole successively; And the end that makes this double-screw bolt is screwed in this second internal thread hole, combines with this body, and screws to the counterweight of replacing bottom through this nut and this bolt.
8. extension ladder according to claim 7 is characterized in that: this package assembly also comprises packing ring, and it is between this nut and this counterweight bottom.
9. extension ladder according to claim 8 is characterized in that: said counterweight is the counterweight of a plurality of Different Weight.
10. extension ladder according to claim 7 is characterized in that: this double-screw bolt is the full thread double-screw bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102560112A CN102434087A (en) | 2011-08-31 | 2011-08-31 | Adjustable balance weight and telescoping ladder with the balance weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102560112A CN102434087A (en) | 2011-08-31 | 2011-08-31 | Adjustable balance weight and telescoping ladder with the balance weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434087A true CN102434087A (en) | 2012-05-02 |
Family
ID=45982412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102560112A Pending CN102434087A (en) | 2011-08-31 | 2011-08-31 | Adjustable balance weight and telescoping ladder with the balance weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110212A (en) * | 2014-07-10 | 2014-10-22 | 太原重工股份有限公司 | Ladder for getting on/off mechanical equipment and mechanical equipment provided with ladder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030081A1 (en) * | 1999-12-20 | 2001-10-18 | Kazuyoshi Morimoto | Ladder unit for climbing up and down construction machine |
| JP2002227245A (en) * | 2001-01-26 | 2002-08-14 | Komatsu Ltd | Onboard ladder support means for hydraulic shovel |
| CN201254975Y (en) * | 2008-08-29 | 2009-06-10 | 新疆易通机床工贸总公司 | Rope anti-releasing device |
| EP2130979A2 (en) * | 2008-05-27 | 2009-12-09 | Volvo Construction Equipment Holding Sweden AB | Step apparatus for heavy construction equipment and tree harvester having leveling system |
| CN201666133U (en) * | 2010-04-06 | 2010-12-08 | 海城市石油机械制造有限公司 | Hangingtongs balancing unit |
| CN201747299U (en) * | 2010-08-04 | 2011-02-16 | 海城市石油机械制造有限公司 | Hydraulic cylinder-type hanging tongs balancing device |
-
2011
- 2011-08-31 CN CN2011102560112A patent/CN102434087A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030081A1 (en) * | 1999-12-20 | 2001-10-18 | Kazuyoshi Morimoto | Ladder unit for climbing up and down construction machine |
| JP2002227245A (en) * | 2001-01-26 | 2002-08-14 | Komatsu Ltd | Onboard ladder support means for hydraulic shovel |
| EP2130979A2 (en) * | 2008-05-27 | 2009-12-09 | Volvo Construction Equipment Holding Sweden AB | Step apparatus for heavy construction equipment and tree harvester having leveling system |
| CN201254975Y (en) * | 2008-08-29 | 2009-06-10 | 新疆易通机床工贸总公司 | Rope anti-releasing device |
| CN201666133U (en) * | 2010-04-06 | 2010-12-08 | 海城市石油机械制造有限公司 | Hangingtongs balancing unit |
| CN201747299U (en) * | 2010-08-04 | 2011-02-16 | 海城市石油机械制造有限公司 | Hydraulic cylinder-type hanging tongs balancing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110212A (en) * | 2014-07-10 | 2014-10-22 | 太原重工股份有限公司 | Ladder for getting on/off mechanical equipment and mechanical equipment provided with ladder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2757064A3 (en) | Comb plate-comb plate carrier assembly and combination construction comprising lifting tool and the assembly | |
| CN204024005U (en) | Assembly type suspension platform | |
| CN102916367B (en) | Maintenance block for vertical twin bundled conductors | |
| CN102434087A (en) | Adjustable balance weight and telescoping ladder with the balance weight | |
| CN203674627U (en) | Adjustable rope ladder head of transmission line | |
| CN105048341A (en) | One-line operation trolley for power transmission line | |
| CN206845078U (en) | Steady ladder | |
| EP2455563A3 (en) | Headpiece for attachment to the front of a construction support and method | |
| CN210182915U (en) | Auxiliary insulating rod for passing in and out of ultrahigh voltage strain tower insulator string | |
| CN104399235A (en) | Foot pole climbing assisting device for electric wire pole | |
| CN211393722U (en) | Telescopic supporting leg of detachable continuous oil pipe injection head | |
| EP2236414A3 (en) | Gyrocopter | |
| CN103956679A (en) | Steel tube tower maintenance operation platform and using method thereof | |
| CN107327204A (en) | Portable laborsaving leading screw electric pole erection device | |
| CN211183239U (en) | Cable bridge convenient to adjust | |
| CN207422062U (en) | A kind of adjustable lighting police spontoon | |
| US1104202A (en) | Adjustable electric-light chandelier. | |
| CN206412658U (en) | The switch cubicle of prefabricated connection jaws | |
| RU161499U1 (en) | ELECTRIC SHOCK PROTECTION OF BIRDS | |
| CN205081426U (en) | Tiger -head -shaped cable fixer | |
| CN215564363U (en) | Fixing structure for assembling scaffold | |
| CN209817333U (en) | Fixing structure of aluminum ceiling | |
| CN109921350B (en) | Cable bridge with adjustable wiring assembly | |
| CN104721977B (en) | A kind of portable multi-function rescues bracket component | |
| EP2514867A3 (en) | Wire rope with a long splice connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |