CN201040901Y - Telescopic ladder - Google Patents

Abstract

The utility model provides an expansion ladder for going up and down in a space in mechanical field. A ladder frame is connected with an expansion bar which is connected with an expansion component which is connected with handrail bars. The ladder frame is connected to a bottom plate via a bottom plate connector. A connecting cable is fixed to the lower side of a ladder body consisting of the expansion component and the expansion bar and is connected to a dynamic wheel by a upper guide wheel and a lower guide wheel. A protection cable is connected between the handrail bars. When not being used, the expansion ladder can be condensed and hidden in an attic or a superstructure without occupying lower space. Besides, the bottom plate and a bottom plate port are dovetailed so as to prevent losing lower hot gas flow from an upper port and a lower port of the attic, save energy consumption and keep stability of indoor environment. When being used, the extension ladder is gravitated to freely go down and is convenient for walking like a normal ladder. The protection cable arranged on the expansion ladder can protect human bodies. The utility model is suitable for usage in attic and other positions which need going up and down.

Description

Extension ladder

Technical field

The utility model provides mechanical field and is used for space extension ladder up and down.

Background technology

Before the utility model proposes, the ladder of climbing up and over as two differing heights spaces have vertical lift elevator, hang the hurdle ladder, the stair that turn back of the upper and lower stepped form in inclined-plane are arranged, spiral stairs has the mobile ladder that can move.For loft in the building, use usually and move ladder or saw, because space and environmental limit, it is perfect that its result of use is difficult to reach.And employed ladder takes up room, and the activity downstairs of giving is made troubles.Taken the space owing between the upper and lower mouth of loft, ladder is installed, its upper and lower mouthful can not cover, so thermal current downstairs is easy to move to top by the upper and lower mouth of loft from lower floor, causes the loss of space heat, has influenced normal heating and refrigeration.Because attic ladder does not have the off-the-shelf that can buy, so the upper and lower of each tame institute solution loft is a great problem.Pressing for provides a kind of extension ladder that aims at loft and design.

Summary of the invention

In order to overcome the shortcoming of existing ladder that loft uses, the utility model proposes a kind of extension ladder.This ladder is by elongation and the collection of shortening solution ladder and the technical problem of use and adaptation spatial altitude of the flexible solution ladder of telescopic component and expansion link.

The scheme that the utility model technical solution problem is taked is: be connected with expansion link on ladder, on expansion link, be connected with telescopic component, on telescopic component, be connected with bar, ladder is connected with base plate by the base plate connector, the downside of the terraced body that constitutes at telescopic component and expansion link is fixedlyed connected drag-line, and is connected with power wheel with following directive wheel by last directive wheel;

Top expansion link and ladder two inboard fixedlying connected;

Between bar and bar, be connected with guard cable;

Telescopic component by rivet with wear axle and constitute the telescopic component unit mutually, mutually constitutes telescopic component by the telescopic component unit by pedal-rod, folding expansion link assembly and straight expansion link assembly;

Be interval with sliding part at the telescopic unit assembly;

The sliding part of being installed on telescopic component is interspersed to be installed in the opening of expansion link;

Sliding part is installed on the telescopic component by the sliding part fastener head;

Expansion link is that rectangular wall is crowded around to constitute and had the opening that sliding part can be installed, and outer expansion link parcel is installed on the inboard expansion link, and its sliding part opening is corresponding, is mounted with the expansion link pulley at outer expansion link or inboard expansion link;

Expansion link can be a multilayer, uses with the space that adapts to differing heights;

On the straight flexible rod member of telescopic component, be mounted with pedal, on pedal, be vertically installed with bar, interconnect by the telescopic component pull bar between the telescopic component of both sides;

Establish on straight flexible rod member upper berth pedal is installed.

This extension ladder not time spent condensation is hidden in loft or the superstructure, does not take lower layer space, and base plate and base plate tone close, and prevents lower floor's thermal current from the forfeiture of loft upper and lower opening, and the consumption of saving the energy keeps the stability of indoor environment.When using extension ladder, extension ladder is freely put down by gravity, as normal stair, is convenient to walking, and set guard cable can also play the protective action to human body on it.The utility model suits to need upper and lower position to use at loft and other.

Description of drawings

Fig. 1 is the utility model structure chart

Fig. 2 is the utility model plan structure figure

Fig. 3 is the utility model connection status figure

Fig. 4 is the utility model telescopic component structure chart

Fig. 5 is the utility model telescopic component assembled state figure

Fig. 6 is the utility model expansion link and extrusome connection status figure

Fig. 7 is the utility model expansion link assembled state figure

Fig. 8 is the utility model pedal and pull bar connection status figure

Fig. 9 is the utility model pedal and pole connection status figure

Among the figure, 1. base plate, 2. ladder, 3. expansion link, 3.1. the expansion link pulley, 4. telescopic component, 4.1. pedal-rod, the flexible rod member of 4.2. folding, 4.3. directly flexible rod member, 4.4. sliding part, 4.5. sliding part fastener head, 4.6. telescopic component pull bar, 5. bar, 6. base plate connector, 7. power wheel, 8. descend directive wheel, 9. drag-line is 10. gone up directive wheel, 11. guard cable, 12. pedals

The specific embodiment

Shown in Fig. 1,2,3, on ladder 2, be connected with expansion link 3, on expansion link, be connected with telescopic component 4, on telescopic component, be connected with bar 5, ladder is connected with base plate 1 by the base plate connector, the downside of the terraced body that constitutes at telescopic component and expansion link is fixedlyed connected drag-line 9, and is connected with power wheel with following directive wheel 8 by last directive wheel 10;

Top expansion link and ladder two inboard fixedlying connected;

Between bar and bar, be connected with guard cable 11;

Shown in Fig. 4,5, telescopic component by rivet with wear axle and constitute the telescopic component unit mutually, mutually constitutes telescopic component by the telescopic component unit by pedal-rod 4.1, folding expansion link assembly 4.2 and straight expansion link assembly 4.3;

At the telescopic unit inter-module every sliding part 4.4 is installed;

According to shown in Figure 6, the sliding part of being installed on telescopic component is interspersed to be installed in the opening of expansion link;

Sliding part is installed on the telescopic component by the sliding part fastener head;

According to shown in Figure 7, expansion link is that rectangular wall is crowded around to constitute and had the opening that sliding part can be installed, outer expansion link parcel is installed on the inboard expansion link, and its sliding part opening is corresponding, is mounted with expansion link pulley 3.1 at outer expansion link or inboard expansion link;

Expansion link can be a multilayer, uses with the space that adapts to differing heights;

According to shown in Figure 8, on the straight flexible rod member of telescopic component, be mounted with pedal, on pedal, be vertically installed with bar, interconnect by the telescopic component pull bar between the telescopic component of both sides;

According to shown in Figure 9, establish on straight flexible rod member upper berth pedal is installed.

Suitable field of employment of the utility model and use

Suitable field of employment: loft, movable step, the building potential difference is handled.

Use:

When extension ladder is in condensed state, be subjected to drag-line to act on inboard expansion link and contract in outer expansion link, the telescopic component condensation is rolled on the directly flexible rod member, and bar and expansion link are parastate, and the base plate tone of base plate and floor is closed.

In use, by power wheel, directive wheel drag-line is loosened, be subjected to the effect of gravity, expansion link drives telescopic component disengaging base plate mouth and moves down, arrive lower floor, this moment, bar was turned up automatically, was the state perpendicular to pedal, guard cable between the bar is stretching, and the people can upper and lower walking on pedal.

Owing to be provided with handrail and guard cable, thereby the guarantor can not drop, and safety is good.

Claims (1)

1. extension ladder, it is characterized in that: on ladder (2), be connected with expansion link (3), on expansion link, be connected with telescopic component (4), on telescopic component, be connected with bar (5), ladder is connected with base plate (1) by the base plate connector, the downside of the terraced body that constitutes at telescopic component and expansion link is fixedlyed connected drag-line (9), and is connected with power wheel with following directive wheel (8) by last directive wheel (10);

Top expansion link and ladder two inboard fixedlying connected;

Between bar and bar, be connected with guard cable (11);

Telescopic component by rivet with wear and spool constitute the telescopic component unit mutually, mutually constitutes telescopic component by the telescopic component unit by pedal-rod (4.1), folding expansion link assembly (4.2) and straight expansion link assembly (4.3);

At the telescopic unit inter-module every sliding part (4.4) is installed;

The sliding part of being installed on telescopic component is interspersed to be installed in the opening of expansion link;

Sliding part is installed on the telescopic component by the sliding part fastener head;

Expansion link is that rectangular wall is crowded around to constitute and had the opening that sliding part can be installed, and outer expansion link parcel is installed on the inboard expansion link, and its sliding part opening is corresponding, is mounted with expansion link pulley (3.1) at outer expansion link or inboard expansion link;

Expansion link can be a multilayer, uses with the space that adapts to differing heights;

On the straight flexible rod member of telescopic component, be mounted with pedal, on pedal, be vertically installed with bar, interconnect by the telescopic component pull bar between the telescopic component of both sides;

Establish on straight flexible rod member upper berth pedal is installed.

Images