CN2898257Y

CN2898257Y - Multifunctional assembled ladder

Info

Publication number: CN2898257Y
Application number: CN 200620019433
Authority: CN
Inventors: 王朝森
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-12
Filing date: 2006-04-12
Publication date: 2007-05-09
Anticipated expiration: 2016-04-12

Abstract

The utility model discloses a multifunctional combined ladder, belonging to a service tool of high elevation working, in particular to a shape-variable multifunctional ladder. The combined ladder is the telescopic ladder composed of a mobile ladder and a fixed ladder by assembling a plurality of sliding chutes together; the improved structure is characterized in that a reinforced block is arranged in the section material empty chamber on the top end of the two groups of telescopic ladder; a U-shape reinforced groove is fixed on the outer wall of the section material; the U-shape reinforced grooves are connected together mutually by a plurality of hinges; a plurality of hinge seats are arranged on the top end of each fixed ladder and the rear end of each mobile ladder. The utility model has the advantages of simple structure, easy disassembly to be a telescopic straight ladder or a small ladder shaped like a Chinese character ''Ren'', and easy connection to a big ladder shaped like a Chinese character ''Ren'' as well. The utility model also has the advantages of better safety.

Description

A kind of multi-functional combination ladder

Technical field

The utility model belongs to the high-order homework maintenance tool, but the multipurpose ladder of changes shape particularly.

Background technology

At present the traditional ladder that uses when repairing is telescopic or folding, and telescopic ladder is used to lean against operation on the vertical wall, and foldable ladder is used to not have the place of supporting wall.In the maintenance activity of reality, the workman will be equipped with two ladders usually, for high-altitude maintenance or the installation by wall locations, adopts telescopic ladder; For low level maintenance or installation away from wall locations, then adopt foldable ladder, if maintenance or installation position are higher, then want the expensive time, the operation of building a framework.Only need a workman to get final product for many simple operations, but because ladder is to make with metal, its weight is heavier, so just need another people to help to carry another ladder, or carry twice by a people, this can reduce operating efficiency greatly, has also strengthened working strength of workers.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of multi-functional combination ladder, it is simple in structure, and is safe in utilization, can take apart easily as flexible vertical ladder or reduced size double ladder and use, can connect into the large-size double ladder again and use, increase work efficiency greatly.

Solving the scheme that technical problem of the present utility model adopts is: form extension ladder traditional by mobile ladder that is assembled together by chute and fixed ladder, carry out following architecture advances, in the section bar cavity on the top of two groups of telescopic movable ladders boss is housed, the section bar outer wall is fixed with the U-shaped strengthening groove again, by hinge the U-shaped strengthening groove is interconnected together again again; The top of each fixed ladder and the end of each mobile ladder all are equipped with hinged seat.

After inserting boss in the upper profile bar cavity of telescopic movable ladder, useful U-shaped strengthening groove is reinforced, make this position obtain mechanical strength preferably, thereby guarantee that two groups of extension ladders have good security performance and long application life when being hinged to the large-size double ladder, and need not to build a framework specially operation, increase work efficiency greatly; When operation does not need the large-size double ladder, can separate hinge neatly, a people just can finish by the high-altitude of wall locations and keep in repair or install; Extract mobile ladder out, be hinged to a reduced size double ladder with fixed ladder, can be away from the low idle job of wall locations.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is one of fixed ladder articulated structure figure of the utility model list group ladder;

Fig. 2 is the horizontal schematic cross-sectional view of stepping on bar of the utility model mobile ladder;

Fig. 4 be the utility model list group ladder fixed ladder articulated structure figure two;

Fig. 5 is the telescopic adjustment card schematic diagram of the utility model mobile ladder column;

Fig. 6 is the utility model fixed ladder top reinforcement schematic diagram;

Fig. 7 is a cross bar reinforcement schematic diagram at the bottom of the utility model mobile ladder;

Fig. 8 is the scheme of installation of the lifting pulley of the utility model fixed ladder;

Fig. 9 changes the example schematic of double ladder for the utility model.

Each label is represented successively among the figure: mobile ladder column 1, boss 2, U-shaped strengthening groove 3, rivet 4, hinge 5, the horizontal bar 6 of stepping on, junction plate 7, hinged seat 8, regulating tank 9, hinge 10, hinge 11, junction plate 12, adjustment hole 13, fixed ladder column 14, hinged seat 15, end wall bracket cross tube 16, hound 17, end wall bracket montant 18, stirrup 19, screw 20, U-lag 21, connecting hole 22, universal wheel 23, goods divider 24, spring 25, spring base 26, cross bar 27 at the bottom of the mobile ladder, pin 28, wing shape hole 29, fin 30, rotating shaft 31, mounting groove 32, screw 33, compression spring 34, torque spring 35, backing plate 36, clamp 37, U-shaped strengthening groove 38, rivet 39, reinforced pull rod 40, fixed ladder top cross bar 41, U-shaped strengthening groove 42, rivet 43, lifting pulley 44, lifting steel cable 45, cross bar 6a, pull bar 46.

The specific embodiment

Referring to Fig. 1, this multi-functional combination ladder has the extension ladder of two groups of routines, in the section bar cavity on the top of its mobile ladder boss 2 is housed, mobile ladder column 1 and the horizontal bar 6 of stepping on are inserted in the U-shaped strengthening groove, again by rivet 4 with mobile ladder column 1, boss 2, horizontally step on bar 6 and U-shaped strengthening groove 3 is fixed into one, interconnect again together by the U-shaped strengthening groove 3 of hinge 5, just become a large-sized double ladder two groups of mobile laddeies.The end of the top of each fixed ladder column 14 and each mobile ladder column 1 all is equipped with hinged

seat

8 and 15, and when taking hinge 5 apart, after the chute extraction of fixed ladder, hinged

seat

8 and 15 correspondences are connected with regard to the undersized double ladder of one-tenth capable of being combined with mobile ladder.In order to make this multi-functional combination ladder in using, safety preferably be arranged as large-sized double ladder, end at fixed ladder is equipped with end wall bracket, its concrete connected mode is to bore connecting hole 22 in the lower end and fixed ladder column 14 lower ends of end wall bracket montant 18, with both connections; Use U-lag 21 that the horizontal bar 6 of stepping on of fixed ladder is embedded simultaneously, stirrup 19 hoops are stepped on bar 6 and the fixed ladder column 14 horizontal again, the two ends of stirrup 19 are fixed on the hound 17 of end wall bracket by screw 20, thereby make the top of end wall bracket also obtain the location.It is comparatively difficult when a people carries whole combination ladder, the utility model taked in the connecting hole 22 of end wall bracket montant 18 lower ends of one group of fixed ladder end, to have packed into universal wheel 23 of strap bolt, also hinged goods divider 24 on the end wall bracket montant 18, as long as the operator mentions the top of fixed ladder, goods divider 24 is dug in rotation, just can pull away whole combination ladder and maintenance tool like a cork.In order further to ensure in the safety of leaving the wall work high above the ground, horizontal stepping on all uses hinge 10 to be hinged with junction plate 12 folding more than two on the bar 6 in the bottom of the fixed ladder of two groups of extension ladders, 12 of junction plates use hinge 11 mutually hinged again, and be drilled with a series of adjustment holes 13 on the junction plate 12, open junction plate 12, the adjustment hole 13 on both sides is aligned connection, couple together with the hinged seat 8 of the junction plate 7 of being with regulating tank 9 again, just can guarantee that large-sized double ladder supporting leg when operation can not move the fixed ladder top of two groups of extension ladders.

For the hinged seat 8 that makes the fixed ladder top can connect fast, increase work efficiency, referring to Fig. 2, the hinged seat 8 on fixed ladder top is hinged with pin 28 with corresponding connected components (being mobile ladder) herein, and spring base 26 is housed on the cross bar 27 at the bottom of the mobile ladder, and 26 of pin 28 and spring bases are equipped with spring 25, when hinged

seat

8 and 15 pairs of timings, decontrol pin 28, spring 25 can just insert pin 28 at once, and fixed ladder and mobile ladder are hinged together.Referring to Fig. 4, the hinged seat 8 on fixed ladder top also has another kind of connected mode fast, this figure is an example with the junction plate 7 of band regulating tank 9, wing shape hole 29 all is with in the fraising of the junction plate 7 of hinged seat 8 and correspondence, have outstanding fin 30 on the pin 28, the fin 30 of pin 28 aligns wing shape hole 29 during connection, passes the fin 30 of the pin 28 that staggers behind the wing shape hole 29, just can be hinged both, and prevent to break away from.

Referring to Fig. 3, when this multi-functional combination ladder used as undersized double ladder, in order to make horizontal surface and the horizontal plane angle of stepping on bar 6 as far as possible little, sole was more comfortable during work, also compares safety, and the horizontal cross section of stepping on bar 6 of mobile ladder should adopt the diclinic waist trapezoidal.

Referring to Fig. 5, on the mobile ladder column 1 of conventional extension ladder the telescopic adjustment card is housed, the horizontal bar 6 of stepping on of the differing heights that its clamp 37 can block fixed ladder reaches the purpose of adjusting height, but when being combined into undersized double ladder, clamp 37 can upset outwards, the trousers that are easy to catch on the operator are caused danger, and also not attractive in appearance, the improvement of the technical program is, packed in mounting groove 32 one and compressed spring 34, with clamp 37 extrapolations, the edge that enters the fixed ladder column stashes; The openend of mounting groove 32 has been fixed a backing plate 36, compression spring 34 is positioned in the groove can move, and backing plate 36 can be fixing with mobile ladder column 1 usefulness screw 33, makes these stressed bigger parts have higher intensity.

When using as undersized double ladder; the riveting point of considering fixed ladder column 14 is stressed bigger; time has been grown regular meeting's distortion or has damaged; therefore can be as shown in Figure 6; fixed ladder top cross bar 41, fixed ladder column 14 and reinforced pull rod 40 are packed in the U-shaped strengthening groove 38, be fixed up with rivet 39 again.Equally as shown in Figure 7, cross bar 27 is fixed in the U-shaped strengthening groove 42 in order also to adopt to contain at the bottom of the mobile ladder, again the reinforcement that connects with rivet 43.

Referring to Fig. 8, in order to prevent to extend mobile ladder that time operation excessively, the mobile ladder mistake is pulled out the chute of fixed ladder, when guaranteeing ladder elongation maximum value simultaneously, the contact portion of fixed ladder column 14 and mobile ladder column 1 has enough intensity, should set up a cross bar 6a between the bar 6 fixed ladder top cross bar 41 and second horizontal the stepping on, lifting pulley 44 is contained on this cross bar 6a, so just can increase the contact length of fixed ladder column 14 and mobile ladder column 1.

It is in the open under the environment that maintenance or installation exercise have very major part, as being sometimes in trench or field work, when running into burning sun or when rainy, need cover especially, at this moment can be with reference to Fig. 9, fixed ladder that can this is terraced and mobile ladder are formed two double ladders, will be connected with the pull bar 46 of the ladder configuration link position with two double ladder tops and middle part, and covering just has good the screenings effect of day keeping off the rain behind the tarpaulin.

Claims

1, a kind of multi-functional combination ladder, form extension ladder by mobile ladder that is assembled together by chute and fixed ladder, it is characterized in that: in the section bar cavity on the top of two groups of telescopic movable ladders boss is housed, the section bar outer wall is fixed with the U-shaped strengthening groove again, by hinge the U-shaped strengthening groove is interconnected together again again; The top of each fixed ladder and the end of each mobile ladder all are equipped with hinged seat.

2, by the described multi-functional combination ladder of claim 1, it is characterized in that: the end at fixed ladder is equipped with end wall bracket, and promptly the montant lower end of end wall bracket is connected with the fixed ladder column, and the hound of end wall bracket is connected in hoop and steps on the stirrup of bar and column at fixed ladder horizontal; The top cross bar of fixed ladder and second horizontal the stepping on are set up a cross bar between the bar, lifting pulley is contained on this cross bar.

3, by the described multi-functional combination ladder of claim 2, it is characterized in that: horizontal the stepping in the bottom of the fixed ladder of two groups of extension ladders all is hinged with junction plate mutually hinged more than two on the bar, and is drilled with a series of adjustment holes on the junction plate; The hinged seat on the fixed ladder top of two groups of extension ladders is furnished with the junction plate of band regulating tank.

4, by claim 2,3 described multi-functional combination ladders, it is characterized in that: the universal wheel of the strap bolt of having packed in the connecting hole of montant lower end of end wall bracket of fixed ladder end of one group of extension ladder is arranged, also hinged goods divider on the montant of end wall bracket.

5, by the described multi-functional combination ladder of claim 2, it is characterized in that: the horizontal cross section of stepping on bar of mobile ladder is that the diclinic waist is trapezoidal.

6, by claim 2,5 described multi-functional combination ladders, it is characterized in that: the hinged seat on fixed ladder top is hinged with pin with corresponding connected components, on the spring base of pin and connected components spring is housed.

7, by claim 2,5 described multi-functional combination ladders, it is characterized in that: the hinged seat on fixed ladder top and corresponding connected components have wing shape hole, have outstanding fin on the pin, pin pass the wing mouth that staggers behind the wing shape hole hinged both.

8, by claim 2,5 described multi-functional combination ladders, it is characterized in that: packed in the clamp mounting groove of the telescopic adjustment card of being adorned on the mobile ladder column the compression spring of clamp extrapolation, the openend of mounting groove has been fixed a backing plate and has been made compression spring location and fixedly connected with the mobile ladder column.

9, by claim 2,5 described multi-functional combination ladders, it is characterized in that: top cross bar, the column of fixed ladder and have reinforced pull rod to be fixed in the U-shaped strengthening groove by containing, cross bar also contains and is fixed in the U-shaped strengthening groove at the bottom of the mobile ladder.

10, by claim 2,5 described multi-functional combination ladders, it is characterized in that: configuration is connected with pull bar between two double ladders that fixed ladder and mobile ladder are formed.