CN201111499Y

CN201111499Y - Boarding ladder structure

Info

Publication number: CN201111499Y
Application number: CNU2007201532025U
Authority: CN
Inventors: 杨福生
Original assignee: HEJUN INDUSTRIAL Co Ltd
Current assignee: HEJUN INDUSTRIAL Co Ltd
Priority date: 2007-07-23
Filing date: 2007-07-23
Publication date: 2008-09-10
Anticipated expiration: 2017-07-23

Abstract

The utility model discloses a construction for a boarding ladder, comprising a first ladder frame, which comprises two first lateral frames in parallel with each other, and a plurality of fixed mounts are arranged between the two first lateral frames and a first pin joint part is arranged at one end of the first lateral frame; a second ladder frame, which comprises two second lateral frames in parallel with each other, and a plurality of fixed mounts are arranged between the two second lateral frames and a second pin joint part is arranged at one end of the second lateral frame; a pin joint construction, which comprises a pair of first pin joint elements arranged on the first lateral frame of the first ladder and a pair of second pin joint elements arranged on the second lateral frame of the second ladder frame; the first and the second pin joint elements are together connected with the pivots fixedly arranged at two ends of the second pin joint part of the second ladder frame.

Description

The boarding ladder structure

Technical field

The utility model relates to a kind of boarding ladder structure, and its joint structure between two ladders can bear bigger carrying loading, the whole simultaneously intensity that can reduce the packing volume of timber and increase ladder.

Background technology

The application of boarding ladder is quite frequent, opens on the carrying truck down at many engineering trucks, or drives truck by ground and accept aspects such as delivery, all plays the part of considerable role; Recently because outdoor activity in vogue, the recreational vehicle of class such as beach buggy etc. is also quite popular, and this class vehicle needs to climb up truck by boarding ladder equally and transports; General common boarding ladder all has one and carries bucket from truck and tiltedly put to ground-surface complete length, be provided with simultaneously in both sides be parallel to each other directly to bogie side frame, and integral body constitutes the structure of scalariform according to the most fixed mounts of suitable spacing horizontally set between side frames, but this kind structure makes to deliver quite inconvenience owing to quite long; A kind of have the boarding ladder of two-section ladder once to be used, it mainly reaches integral body by the loose-leaf between the two-section ladder can amount to into the convenience that the length of half increases delivery, but this kind structure being found on the structural strength gradually is not satisfactory, the vehicle of being everlasting is stepped on the Che Shicong articulated section and is fragmented into two halves, because when vehicle is stepped on car except that the weight of vehicle itself, comprise that also the torsion that weight of driver own and tire drive when swashing can act on the ladder, and the articulated section intensity of boarding ladder is the most fragile, also the easiliest causes damage.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of boarding ladder structure, and its joint structure between two ladders can bear bigger carrying loading, the whole simultaneously intensity that can reduce the packing volume of timber and increase ladder.

For this reason, the utility model proposes a kind of boarding ladder structure, it comprises: first ladder, comprise two first bogie side frames parallel to each other, and be provided with a plurality of fixed mounts between two first bogie side frames, first bogie side frame, one end is provided with first articulated section; Second ladder comprises two second bogie side frames parallel to each other, is provided with a plurality of fixed mounts between two second bogie side frames, and second bogie side frame, one end is provided with second articulated section; One joint structure comprises a pair of first articulated part on first bogie side frame of being located at described first ladder, is located at a pair of second articulated part on second bogie side frame of described second ladder; The common pivot with the two ends, second articulated section that are installed in second ladder of described first and second articulated part links.

Preferably, at the two ends of the nearly lower position in second articulated section of second ladder, each weldering is established and is fixed with one section above-mentioned pivot parallel with second articulated section, forms the space of hollow out between two pivots.

Preferably, this second articulated part and this pivot solid welding and form one, this first articulated part is provided with for rotatable with respect to this pivot.

Preferably, being somebody's turn to do of first articulated section of this first ladder to the position of first articulated part on two pivots, be compared to second articulated section of second ladder should be an inner side to second articulated part, the spacing between two first articulated parts is less than the spacing of two second articulated parts.

Preferably, this first articulated part is a rectangular sheet, and its weldering is established and is fixed on first bogie side frame, and first articulated part is not subjected to the other end of solid welding to convexedly stretch in the outer pivoted hole that also is provided with thereon of first bogie side frame; This second articulated part is a rectangular sheet, and its weldering is established and is fixed on second bogie side frame, and second articulated part is not subjected to the other end of solid welding to convexedly stretch in second bogie side frame and also is provided with pivoted hole outward thereon.

Preferably, the fixed mount upper surface between two these first and second bogie side frames is equipped with the metal dictyosome.

Preferably, be formed with the interval of rectangular depression on first and second bogie side frame flank of this first and second ladder.

Preferably, the place's weldering of nearly top position, first articulated section of this first ladder is provided with a strip pad parallel with first articulated section.

Preferably, first and second bogie side frame opposite position place of this first ladder and second ladder respectively is provided with handle.

Preferably, this handle comprise horizontal grip part and two ends upright to button bar portion, and button bar portion stretches through the set perforation of the first or second ladder bogie side frame, and forms the big stopping part of boring a hole in the other end of perforation.

Therefore, the utility model has the advantages that: not only provide the joint structure between two ladders can bear bigger carrying loading, the whole simultaneously intensity that can reduce the packing volume of timber and increase ladder.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model embodiment.

Fig. 2 articulates enlarged diagram partly among the utility model embodiment.

Fig. 3 folds the scheme drawing of Gong guiding and supporting for the utility model embodiment.

Fig. 4 is a handle installation place structural section scheme drawing among the utility model embodiment.

Fig. 5 is a handle holding structure generalized section among the utility model embodiment.

Description of reference numerals:

1 first ladder, 11 first bogie side frames, 12 fixed mounts

Frame 15 dictyosomes are supported in 13 first articulated sections 14

16 interval 2 second ladders, 21 second bogie side frames

22 fixed mounts, 23 second articulated sections, 24 button framves

25 dictyosomes, 26 interval 3 joint structures

31 first articulated parts, 311 pivoted holes, 32 second articulated parts

321 pivoted holes, 33 pads, 34 pivots

4 handles, 41 grip parts, 35 spaces

42 button bar portions, 43 stopping parts

The specific embodiment

See also Fig. 1, the utility model embodiment comprises:

First ladder 1, it is made by metal material, comprise two first bogie side frames 11 parallel to each other, 11 of two first bogie side frames are provided with fixed mount 12, its according to the length of first bogie side frame 11 under suitable spacing parallel be provided with a plurality of, first bogie side frame, 11 1 ends are made as pivot end and are provided with first articulated section, 13, the first bogie side frames 11 and form with respect to the other end of pivot end and support the ground end and be provided with to frame 14, are equipped with metal dictyosome 15 at fixed mount 12 upper surfaces of 11 of two first bogie side frames; Be formed with the interval 16 of rectangular depression on the flank of first bogie side frame 11;

Second ladder 2, it is made by metal material, comprise two second bogie side frames 21 parallel to each other, 21 of two second bogie side frames are provided with fixed mount 22, its according to the length of second bogie side frame 21 under suitable spacing parallel be provided with a plurality of, second bogie side frame, 21 1 ends are made as pivot end and are provided with second articulated section, 23, the second bogie side frames 21 and form by end of thread with respect to the other end of pivot end and be provided with button frame 24, are equipped with metal dictyosome 25 at fixed mount 22 upper surfaces of 21 of two second bogie side frames; Be formed with the interval 26 of rectangular depression on the flank of second bogie side frame 21;

One joint structure 3, please cooperate and consult Fig. 2, comprise a pair of first articulated part 31 on first bogie side frame 11 of being located at 13 liang of corresponding outsides, described first ladder 1 first articulated section, this first articulated part 31 roughly is a rectangular sheet, the axis of itself and first bogie side frame 11 is the ground weldering of suitable angle to be established and is fixed on first bogie side frame 11, and it is outer and be provided with pivoted holes 311 thereon that first articulated part 31 is not subjected to the other end of solid welding to convexedly stretch in first bogie side frame 11; In addition, comprise a pair of second articulated part 32 on second bogie side frame 21 of being located at 23 liang of corresponding outsides, described second ladder 2 second articulated sections, this second articulated part 32 roughly is a rectangular sheet, the axis of itself and second bogie side frame 21 is the ground weldering of suitable angle to be established and is fixed on second bogie side frame 21, and it is outer and be provided with pivoted holes 321 thereon that articulated part 32 is not subjected to the other end of solid welding to convexedly stretch in second bogie side frame 21; Pivoted hole 311,321 overlaids of described first and second articulated

part

31,32 also form the hole of running through; Be provided with a strip pad 33 parallel in the nearly top positions place's weldering of first ladder, 1 first articulated section 13 with first articulated section 13; In addition, each weldering is established and is fixed with one section pivot 34 parallel with second articulated section 23 at the two ends of second ladder, 2 second articulated sections, 23 nearly lower position, 34 spaces 35 that form hollow out of two pivots, each pivot 34 outwards protrudes out respectively and passes described overlaid and form articulated

part

31,32 pivoted holes 311,321 that run through, and makes the three form connection.

First ladder 1 and second ladder 2 can be that the first transaction of a day's business state that is Fig. 1 of raising is done in the axle center with this pivot 34, be butted on ground with the frame 14 that supports that utilizes first ladder 1 to support the ground end, and second ladder 2 bridges by the oblique frame of mode of buckleing truck and carrying bucket by the button frame 24 of end of thread, transport through it with order plan carrying or the following vehicle that unloads, this moment, second ladder, 2 second articulated sections 23 just were butted on first ladder, 1 first articulated section 13 pad of establishing 33 that welds.

See also Fig. 3, first ladder 1 and second ladder 2 can also be that folding is done into about the length of half slightly in the axle center with this pivot 34, so can save it easily and place space on truck.

Being somebody's turn to do of described first ladder 1 first articulated section 13 to the position of first articulated part 31 on two pivots 34, be articulated part 32 to be an inner side compared to this of second ladder, 2 second articulated sections 23, in other words, the spacing that two first articulated parts are 31 is less than the spacing of two second articulated parts 32, so design fits makes the pivoted hole 321 of second articulated part 32 form one with pivot 34 solid weldings, then in fact when first ladder 1 and second ladder 2 are done the folding operation, second articulated part 32 does not relatively rotate basically with pivot 34, has only first articulated part 31 to rotate with respect to pivot 34; This kind design has simultaneously limited also that first articulated part 31 can outwards not slide and has come off from pivot 34 and to form destruction when stressed.

In addition, see also Fig. 1,4, first bogie side frame, 11, the 21 opposite position places of first ladder 1 and second ladder 2 respectively are provided with handle 4, can make portable for integral body, but as shown in Figure 4 textural, it is an example with the handle 4 that is installed on first ladder, 1 first bogie side frame 11, and second bogie side frame that is installed on second ladder 2 in like manner can push away; The structure of handle 4 comprise horizontal grip part 41 and two ends upright to button bar portion 42, and button bar portion 42 stretches through the set perforation 17 of first ladder, 1 first bogie side frame 11, and forms the transverse width 17 big stopping parts 43 of boring a hole in the other end of perforation 17; Therefore, when handle 4 is carried on horizontal grip part 41, stopping part 43 will keep off button first bogie side frame 11 set perforation 17 and interlock first ladders 1 and be carried; Otherwise during the application of force carried on discharging handle 4 grip parts 41, as shown in Figure 5, handle 4 will sink to only revealing horizontal grip part 41 outside first bogie side frame 11; So design can be saved the volume of timber that packing is transported because of avoiding handle 4 to expose protrusion.

16,26 can gain in strength between formed rectangular depressed area on first bogie side frame, 11,21 flanks of first ladder 1 and second ladder 2, increase the carrying loading of first ladder 1 and second ladder 2 for first

bogie side frame

11,21.

In sum, the design of the structure of the utility model embodiment not only provides the joint structure between two ladders can bear bigger carrying loading, the whole simultaneously intensity that can reduce the packing volume of timber and increase ladder.

The above person, it only is preferable possible embodiments of the present utility model, when not limiting the scope that the utility model is implemented with this, promptly the equivalent structure of doing according to the utility model claims and description generally changes and modifies, and all should still belong to the scope that the utility model patent is contained.

Claims

1. a boarding ladder structure is characterized in that, comprising:

First ladder comprises two first bogie side frames parallel to each other, is provided with a plurality of fixed mounts between two first bogie side frames, and first bogie side frame, one end is provided with first articulated section;

Second ladder comprises two second bogie side frames parallel to each other, is provided with a plurality of fixed mounts between two second bogie side frames, and second bogie side frame, one end is provided with second articulated section;

One joint structure comprises a pair of first articulated part on first bogie side frame of being located at described first ladder, is located at a pair of second articulated part on second bogie side frame of described second ladder; The common pivot with the two ends, second articulated section that are installed in second ladder of described first and second articulated part links.

2. boarding ladder is constructed according to claim 1, it is characterized in that, at the two ends of the nearly lower position in second articulated section of second ladder, each weldering is established and is fixed with one section above-mentioned pivot parallel with second articulated section, forms the space of hollow out between two pivots.

3. boarding ladder structure according to claim 1 is characterized in that, this second articulated part and this pivot solid welding and form one, and this first articulated part is rotatable setting with respect to this pivot.

4. boarding ladder is constructed according to claim 1, it is characterized in that, being somebody's turn to do of first articulated section of this first ladder to the position of first articulated part on two pivots, be compared to second articulated section of second ladder should be an inner side to second articulated part, the spacing between two first articulated parts is less than the spacing of two second articulated parts.

5. boarding ladder is constructed according to claim 1, it is characterized in that this first articulated part is a rectangular sheet, and its weldering is established and is fixed on first bogie side frame, and first articulated part is not subjected to the other end of solid welding to convexedly stretch in the outer pivoted hole that also is provided with thereon of first bogie side frame; This second articulated part is a rectangular sheet, and its weldering is established and is fixed on second bogie side frame, and second articulated part is not subjected to the other end of solid welding to convexedly stretch in second bogie side frame and also is provided with pivoted hole outward thereon.

6. boarding ladder is constructed according to claim 1, it is characterized in that the fixed mount upper surface between two these first and second bogie side frames is equipped with the metal dictyosome.

7. boarding ladder is constructed according to claim 1, it is characterized in that, is formed with the interval of rectangular depression on first and second bogie side frame flank of this first and second ladder.

8. boarding ladder is constructed according to claim 1, it is characterized in that, the place's weldering of nearly top position, first articulated section of this first ladder is provided with a strip pad parallel with first articulated section.

9. boarding ladder is constructed according to claim 1, it is characterized in that first and second bogie side frame opposite position place of this first ladder and second ladder respectively is provided with handle.

10. as boarding ladder structure as described in the claim 9, it is characterized in that, this handle comprise horizontal grip part and two ends upright to button bar portion, and button bar portion stretches through the set perforation of the first or second ladder bogie side frame, and forms the big stopping part of boring a hole in the other end of perforation.