CN202866629U - Folded combination ladder - Google Patents

Folded combination ladder Download PDF

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Publication number
CN202866629U
CN202866629U CN 201220405030 CN201220405030U CN202866629U CN 202866629 U CN202866629 U CN 202866629U CN 201220405030 CN201220405030 CN 201220405030 CN 201220405030 U CN201220405030 U CN 201220405030U CN 202866629 U CN202866629 U CN 202866629U
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CN
China
Prior art keywords
ladder
support
described main
font
linkage
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Expired - Fee Related
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CN 201220405030
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Chinese (zh)
Inventor
杨冬祥
陈志刚
王维国
耿发旺
张许果
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN 201220405030 priority Critical patent/CN202866629U/en
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Publication of CN202866629U publication Critical patent/CN202866629U/en
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Abstract

The utility model discloses a folded combination ladder, comprising a ladder rack body, wherein the ladder rack body comprises a ladder rod for supporting, and transverse tread rods which are arranged on the ladder rod at intervals; the ladder rack body is herringbone, or straight, or L-shaped, or n-shaped, or a suspending inverted shape like a Chinese character 'yi'; the ladder rack body comprises a main ladder rack, a secondary ladder rack and a bearing plate; the bearing plate and the secondary ladder rack are respectively near or located at two ends of the ladder rod of the main ladder rack; the secondary ladder rack comprises a plurality of sections of short ladder racks; the plurality of sections of short ladder racks are connected in a straight or angular shape through a first connector; and the secondary ladder rack is connected with the main ladder rack through a second connector or a third connector. The folded combination ladder disclosed by the utility model is reasonable in structure, convenient to carry, simple to operate, strong in practicability, low in cost, and suitable for multiple purposes and operation modes, and can achieve multiple functions.

Description

Foldable combined ladder
Technical field
The utility model relates to work high above the ground and transport field, is specifically related to a kind of foldable combined ladder.
Background technology
At present, the installation of air-conditioner outdoor unit belongs to work high above the ground substantially, and no matter installation environment is the grid platform, reveals hollow panel even unsettled support is installed, and all has great potential safety hazard, occurs easily that personnel slip and the security incident of air crash pendant thing; At present, mainly use multi-functionally can fold, can assemble, light small and exquisite omnipotent ladder solves the problems referred to above;
The existing omnipotent ladder in market is " one " font or " people " font mostly, but the function of the two is all more single, superimposed and launch shape underaction, and the shape that supports after launching can not change according to the actual installation situation of off-premises station, is difficult to satisfy well the air-conditioning installation requirements.
The utility model content
The purpose of this utility model is to provide a kind of multifunctional ladder simple to operate, can be by splicing and combining realization " " word ladder, " people " word ladder, " L " type ladder, fall the Multifunctional Conversion of " second " word ladder, also can stack and be combined as vehicle, be used for the carrying work of air-conditioner and heavier erection equipment.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of foldable combined ladder comprises the ladder body, and described ladder body comprises for the terraced bar that supports and is arranged at intervals at laterally tramples bar on the described terraced bar; Described ladder body is " people " font, or is " one " font, or is " L " type, or is " second " font of the handstand that can hang;
Described ladder body comprises main ladder support, secondary ladder and loaded plate; Described loaded plate and described secondary ladder respectively near or be positioned at the two ends of the terraced bar of described main ladder support;
Described secondary ladder comprises the short ladder of multistage, is " one " font or the connection of angle type by the first linkage between the described short ladder of multistage;
Described secondary ladder and described main ladder support are by crossbeam, or the second linkage, or the 3rd linkage links to each other.
Therein among embodiment, described ladder body is for " second " font of the handstand that can hang or be " one " font, or is " L " type;
One end of described secondary ladder and an end of described main ladder support are connected and fixed by described crossbeam.
Therein among embodiment, described ladder body is " second " font of the handstand that can hang, and the length of described main ladder support is close with the length of described secondary ladder; Described loaded plate and described secondary ladder lay respectively at the two ends of the terraced bar of described main ladder support, and lay respectively at the both sides of the tread of described main ladder support;
The described short ladder of the multistage of described secondary ladder is " one " font by described the first linkage and connects; The tread of described secondary ladder is parallel relative with the tread of described main ladder support, and an end of described secondary ladder and an end of described main ladder support are connected and fixed by crossbeam; Described crossbeam is simultaneously perpendicular to the tread of described main ladder support and the tread of described secondary ladder.
Among embodiment, described ladder body is " one " font, or is " L " type therein;
The described short ladder of the multistage of described secondary ladder is " one " font and connects; Described crossbeam links to each other with described secondary ladder docking with described main ladder support simultaneously, and the tread of described main ladder support and the tread of described secondary ladder are in the same plane;
Angle between the tread of described loaded plate and described main ladder support is spent less than or equal to 180 more than or equal to 0 degree.
Therein among embodiment, described ladder body " second " font for standing upside down; Described loaded plate and described secondary ladder lay respectively at the both sides of the tread of described main ladder support;
Angle between the plate face of described loaded plate and the tread of described main ladder support is greater than 0 degree;
The described short ladder of the multistage of described secondary ladder is the angle type by described the first linkage and connects, the angle type body that described secondary ladder is have two crossing sides; The end of a wherein side of described secondary ladder is connected by described the second linkage with described main ladder support, and opposite side is relative with described main ladder support.
Among embodiment, the angle between the both sides of described secondary ladder is 90 degree therein;
The end of a wherein side of described secondary ladder and an end of described main ladder support are by described vertical linking to each other of the second linkage, and the opposite side of described secondary ladder is parallel relative with described main ladder support;
Angle between the plate face of described loaded plate and the tread of described main ladder support is 90 degree.
Among embodiment, described ladder body is " people " font, or is " one " font, or is " L " type therein;
The described short ladder of the multistage of described secondary ladder is " one " font and connects; One end of described secondary ladder and described main ladder support are hinged by described the 3rd linkage; Angle between the tread of described secondary ladder and the tread of described main ladder support, and the angle between the tread of the plate face of described loaded plate and described main ladder support are all spent less than or equal to 180 more than or equal to 0 degree.
Among embodiment, the position that described loaded plate is connected with described main ladder support is positioned at an end of described main ladder support therein; The position that described secondary ladder is connected with described main ladder support is near the other end of described main ladder support.
Among embodiment, described main ladder support includes the parallel described terraced bar that is oppositely arranged of two-way with described secondary ladder therein;
Described main ladder support comprises the ladder that multistage can splice, the every section terraced bar of master and described bar of laterally trampling that the described ladder that can splice includes two opposing parallel;
Every section described short ladder of described secondary ladder includes two parallel relative secondary terraced bars.
Among embodiment, fixing by the connecting joint docking between the ladder that the multistage of described main ladder support can splice therein, or the suit that can mutually stretch, and be bolted.
Among embodiment, described the first linkage is bolt, insertion slot type connector or T-shaped connector or screw rod therein;
Described the second linkage is the connecting rod that is arranged on the described main ladder support;
Described the 3rd linkage is connecting screw rod or junction plate or hinge type slot or is identical connecting rod with described the second linkage.
Among embodiment, described the first linkage, described the second linkage and described the 3rd linkage are the hinge that can fold therein;
What every section described short ladder of described secondary ladder or wherein be welded with one or more cross support arms on one section described short ladder, described cross support arm were parallel to described main ladder support laterally tramples bar.
Among embodiment, also be provided with one near described the first linkage place and be parallel to described transverse support bar of laterally trampling bar therein.
Therein among embodiment, also be provided with near described the second linkage place and be parallel to described another root transverse support bar of laterally trampling bar.
Among embodiment, described loaded plate and described main ladder support are hinged therein.
Among embodiment, an end that is connected with described loaded plate of described main ladder support also is provided with and can drives the roller that described ladder body moves therein.
Among embodiment, described roller is arranged on the terraced bar of described main ladder support therein, and is positioned on the tread of a side relative with described loaded plate of described main ladder support; Described roller is two, is provided with connecting rod between two described rollers.
Among embodiment, the bottom surface of described loaded plate also is provided with two expansion links therein, and described two described expansion links are respectively near two terraced bars of master of described main ladder support; Described expansion link can be to flexible with the parallel opposite side of plate face of described loaded plate.
Among embodiment, the cross section of described main ladder support and secondary ladder is non-circular structure therein.
Among embodiment, the material of described main ladder support and described secondary ladder is stainless steel therein.
The beneficial effects of the utility model:
Foldable combined ladder of the present utility model is rational in infrastructure, convenient in carrying; Simple to operate, practical, can realize several functions, be applicable to multiple use and operating type, and its cost is lower.
Description of drawings
For the purpose, technical scheme and the advantage that make foldable combined ladder of the present utility model and combined method thereof clearer, below in conjunction with drawings and Examples, the utility model is described in further details, but, should be noted that, below described specific embodiment only be used for explanation the utility model, but be not used for limiting scope of the present utility model.
Fig. 1 a is that the utility model foldable combined ladder the first embodiment is down " second " font schematic diagram;
Fig. 1 b is that the utility model foldable combined ladder the first embodiment is " one " font schematic diagram;
Fig. 1 c is the schematic diagram of the utility model foldable combined ladder the first embodiment when being " L " type and loading;
Fig. 2 a is that the utility model foldable combined ladder the second embodiment is down " second " font schematic diagram;
Fig. 2 b is that the utility model foldable combined ladder the second embodiment is " people " font schematic diagram;
Fig. 2 c is the schematic diagram of the utility model foldable combined ladder the second embodiment when being " L " type and loading;
Fig. 3 a is that the third embodiment of the utility model foldable combined ladder is down " second " font schematic diagram;
Fig. 3 b is that the third embodiment of the utility model foldable combined ladder is " people " font schematic diagram;
Fig. 3 c is the schematic diagram of the third embodiment of the utility model foldable combined ladder when being " L " type and loading;
Fig. 4 a is that the 4th kind of embodiment of the utility model foldable combined ladder is down " second " font schematic diagram;
Fig. 4 b is that the 4th kind of embodiment of the utility model foldable combined ladder is " people " font schematic diagram;
Fig. 5 a is that the 5th kind of embodiment of the utility model foldable combined ladder is down " second " font schematic diagram;
Fig. 5 b is that the 5th kind of embodiment of the utility model foldable combined ladder is " people " font schematic diagram;
Fig. 6 a is that the 6th kind of embodiment of the utility model foldable combined ladder is down " second " font schematic diagram;
Fig. 6 b is that the 6th kind of embodiment of the utility model foldable combined ladder is " people " font schematic diagram;
Fig. 7 a is that the 7th kind of embodiment of the utility model foldable combined ladder is down " second " font schematic diagram;
The specific embodiment
Foldable combined ladder in the present embodiment comprises the ladder body, and described ladder body comprises for the terraced bar that supports and is arranged at intervals at laterally tramples bar on the described terraced bar; " second " font that described ladder body foldable combination is hangable handstand, or " people " font, or be " one " font, or be " L " type; Can be in order to the carrying of satisfying the instructions for use of several work, especially air-conditioning and the installation of off-premises station.
Further, described ladder body comprises main ladder support 100, secondary ladder 200 and loaded plate 300; Described loaded plate 300 and described secondary ladder 200 respectively near or be positioned at the two ends of the terraced bar of described main ladder support 100;
Described secondary ladder 200 comprises the short ladder of multistage, is " one " font or the connection of angle type by the first linkage between the described short ladder of multistage, and preferably, the described secondary ladder 200 in the present embodiment comprises two sections short ladders 210,220; Described secondary ladder 200 passes through crossbeam 411,412 with described main ladder support 100, or the second linkage, or the 3rd linkage links to each other.
Preferably, the described main ladder support 100 in the present embodiment includes the parallel described terraced bar that is oppositely arranged of two-way with described secondary ladder 200;
Further, described main ladder support 100 comprises the sliceable ladder of multistage, and in the present embodiment, the sliceable ladder of described multistage is two sections, is respectively the first ladder 110, the second ladder 120; The terraced bar of every section described sliceable ladder connects relatively, forms the terraced bar of master of two opposing parallel of described main ladder support 100, also is provided with the described bar 103 of laterally trampling between the terraced bar of described master; Every section described short ladder 210 of described secondary ladder 200,220 terraced bar connect relatively, form two parallel relative secondary terraced bars of described secondary ladder 200.
As shown in Figure 1a, the first embodiment of the foldable combined ladder in the present embodiment: described ladder body is " second " font of hangable handstand; Described loaded plate 300 and described secondary ladder 200 lay respectively at the both sides of the tread of described main ladder support 100; The length of the length of described main ladder support 100 and described secondary ladder 200 is close; Make the vertical free end of its handstand " second " font longer, can be applied to how different service conditions, for example, when installing an air-conditioner off-premises station, because windowsill or the blow vent that can carry ladder are higher apart from the flooring, then need the climbing distance grown, ladder is long then can be satisfied.
Further, in the first embodiment, the described short ladder 210 of described secondary ladder 200,220 is " one " font by described the first linkage and connects; Wherein, described the first linkage is bolt; The tread of described secondary ladder 200 is parallel relative with the tread of described main ladder support 100, and an end of described secondary ladder 200 and an end of described main ladder support 100 are connected and fixed by two crossbeams 411,412; Described crossbeam 411,412 is simultaneously perpendicular to the tread of described main ladder support 100 and the tread of described secondary ladder 200.
Further, in the first embodiment, described ladder body can also be by " second " font of standing upside down, and conversion is the font for " ", or is " L " type, shown in Fig. 1 b and 1c; Described crossbeam 411,412 links to each other with described secondary ladder 200 docking with described main ladder support 100 simultaneously, and the tread of the tread of described main ladder support 100 and described secondary ladder 200 is in the same plane;
Wherein, after the conversion of described ladder body is for " one " font, open loaded plate 300, namely convertible being " L " type, and can use loaded plate 300 bearing goods;
When described ladder body is in " one " font, or when being " L " type, the angle between the tread of described loaded plate 300 and described main ladder support 100 more than or equal to 0 degree less than or equal to 180 degree.
Shown in Fig. 2 a~2c, be the second embodiment of the described foldable combined ladder in the present embodiment, described ladder body is convertible to be " second " font of the handstand shown in Fig. 2 a, " people " font shown in Fig. 2 b, or is " L " type; When packing up loaded plate 300, can also be " one " font;
Shown in Fig. 2 a~2c, in the second embodiment, fixing by connecting joint 130 docking between the sliceable ladder 110,120 of described main ladder support;
Further, in the second embodiment, described loaded plate 300 and described main ladder support 100 are hinged; The bottom surface of described loaded plate also is provided with two expansion links 310,320, two described expansion links 310,320 respectively near two terraced bars of master of described main ladder support 100.
In the second embodiment, when described ladder body was " second " font ladder of the handstand shown in Fig. 2 a, described loaded plate 300 and described secondary ladder 200 laid respectively at the both sides of the tread of described main ladder support 100; Angle between the plate face of described loaded plate 300 and the tread of described main ladder support 100 is greater than 0 degree;
Further, the described short ladder 210 of described secondary ladder 200,220 is the angle type by described the first linkage and connects, the angle type body that described secondary ladder 200 is have two crossing sides; The end of a wherein side of described secondary ladder 200 i.e. the first short ladder 210 is connected by described the second linkage with described main ladder support 100, and namely second to lack ladder 220 relative with described main ladder support 100 for opposite side;
Preferably, the angle between the both sides of described secondary ladder 200 is 90 degree; Namely vertically link to each other between the first short ladder 210, the second short ladder 220;
Preferably, the end of a wherein side of described secondary ladder 200 and an end of described main ladder support 100 be by described vertical linking to each other of the second linkage, and the opposite side of described secondary ladder 200 is parallel relative with described main ladder support 100; Shown in Fig. 2 a, the first short ladder 210 and described 100 vertical linking to each other of main ladder support, second to lack ladder 220 parallel relative with described main ladder support 100; More preferably, the angle between the tread of the plate face of described loaded plate 300 and described main ladder support 100 also is 90 degree.
Shown in Fig. 2 b and 2c, in the second embodiment, when the conversion of described ladder body was " people " font and " L " type ladder, the described short ladder 210,220 of described secondary ladder 200 was " one " font and connects; One end of described secondary ladder 200 and described main ladder support 100 are hinged by described the 3rd linkage; Angle between the tread of the tread of described secondary ladder 200 and described main ladder support 100, and the angle between the tread of the plate face of described loaded plate 300 and described main ladder support 100 are all spent less than or equal to 180 more than or equal to 0 degree; When being " people " font, the angle between the tread of the tread of described secondary ladder 200 and described main ladder support 100 is spent less than 180 greater than 0 degree; When described ladder body was " L " type, the tread of the tread of described secondary ladder 200 and described main ladder support 100 coincided, and the angle between the two is 0 degree; Less than 180 degree, preferred 90 degree are so that good bearing goods or people's pedal force greater than 0 degree for angle between the plate face of described loaded plate 300 and the tread of described main ladder support 100; When being " L " type when ladder, the plate face of described loaded plate 300 is folded when coinciding to the tread with described main ladder support 100, just can make described foldable combined ladder conversion be " one " font.
Further, the position that is connected with described main ladder support 100 of described loaded plate 300 is positioned at an end of described main ladder support 100; The position that described secondary ladder 200 is connected with described main ladder support 100 is near the other end of described main ladder support 100.
Shown in Fig. 2 a~2c, when the described foldable combined ladder in the present embodiment adopts the second embodiment, be T-shaped connector 510 for described the first linkage that connects the described first short ladder 210 and the second short ladder 220; Be used for described secondary ladder 200 is linked to each other with described main ladder support 100, described the second linkage that conversion is " second " font ladder of handstand is the slot 610 that is arranged at described main ladder support 100 ends; Be used for described secondary ladder 200 is linked to each other with described main ladder support 100, described the 3rd linkage that conversion is " people " font, " L " type and " one " font is connecting screw rod 710;
Shown in Fig. 3 a~3c, when the described foldable combined ladder in the present embodiment adopts the third embodiment, also convertible " second " font of the handstand shown in Fig. 3 a, " people " font shown in Fig. 3 b of being, or be " L " type shown in Fig. 3 c, when packing up loaded plate 300, can also be " one " font;
In the third embodiment, the suit that can mutually stretch between the sliceable ladder 110,120 of described main ladder support, and be bolted; The be more convenient for height of conversion main ladder support 100 is to adapt to different service conditions;
And be used for described secondary ladder 200 is linked to each other with described main ladder support 100, described the 3rd linkage that conversion is " people " font, " L " type and " one " font then changes junction plate 720 into;
Further, other implementation content in the third embodiment is then identical with the second embodiment.
Shown in Fig. 4 a~4b, the 4th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure and embodiment two, three basic identical, difference is:
An end that is connected with described loaded plate 300 of described main ladder support 100 also is provided with and can drives the roller that described ladder body moves, and the quantity of the described roller in the present embodiment is two, is respectively the first roller 330, the second roller 340.
Preferably, described roller 330,340 is arranged on the terraced bar of master of described main ladder support, and is positioned on described main ladder support and the tread described loaded plate opposite side; Be provided with connecting rod 350 between two described rollers 330,340.
Preferably, the first roller 330, the second roller 340 are respectively three steamboats and consist of, and shown in Fig. 4 c, when described foldable combined ladder conversion is " L " type, can also be used for drawing cargo; And conveniently draw cargo to go upstairs.
And be used for described secondary ladder 200 is linked to each other with described main ladder support 100, described the 3rd linkage that makes the conversion of described ladder body be " people " font, " L " type and " one " font is hinge type slot 730; Described hinge type slot 730 makes described secondary ladder 200 simpler with linking to each other of described main ladder support 100, convenient;
Shown in Fig. 5 a~5b, the 5th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure and embodiment four are basic identical, and difference is:
Being used for connecting the described first described first linkage of lacking ladder 210 and the second short ladder 220 is insertion slot type connector 520; And described the second linkage and described the 3rd linkage are connecting rod 620; Like this, can reconnect " second " font, " people " font, " L " type and " one " font Transforms that described foldable combined ladder is being stood upside down between main ladder support 100 and the secondary ladder 200.
Preferably, also be provided with one near described connecting rod 620 places and be parallel to described transverse support bar 810 of laterally trampling bar 103; Close described the second linkage place also is provided with and is parallel to described another root transverse support bar 820 of laterally trampling bar 103; When described foldable combined ladder conversion is " second " font of handstand, described transverse support bar 810 can guarantee to make described secondary ladder 200 and described 100 vertical linking to each other of main ladder support, and described another root transverse support bar 820 can guarantee vertically to link to each other between the first short ladder 210 and the second short ladder 220.
Shown in Fig. 6 a~6b, the 6th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure and embodiment five are basic identical, and difference is:
Described the first linkage is folding hinge 530, and described the second linkage and described the 3rd linkage are another folding hinge 630;
In six kinds of embodiments, three linkages all adopt Hinge, make more direct, the convenient conversion of described foldable combined ladder be " second " font of handstand or " people " font, " L " type and " one " font; And can save transverse support bar 810,820; By the position of secondary ladder 200 rationally is set, when lifting secondary ladder 200, just can guarantee to make one end and main ladder support 100 vertical mutually tops; Another folding hinge 630 then make between the first short ladder 210 and the second short ladder 220 can with less than or equal to 180 arbitrarily angled folding, in order to be suitable for different use occasions.
Shown in Fig. 7 a, the 7th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure is also basic identical with embodiment five, and difference is:
Described the first linkage is screw rod 540; The first short ladder 210 and the second short ladder 220 can arbitrarily angledly be folded, with applicable more use occasion.
Preferably, shown in Fig. 5 a, 6a, 7a, in every section described short ladder 210,220 of the described secondary ladder 200 in the embodiment five, six, seven, or wherein be welded with one or more cross support arms 230 on one section described short ladder, what described cross support arm 230 was parallel to described main ladder support laterally tramples bar 103.
Preferably, the described main ladder support 100 in the present embodiment and the cross section of secondary ladder 200 are non-circular structure, then adopt in the above-described embodiment square structure.
Preferably, in the above-mentioned embodiment, the material of described main ladder support 100 and described secondary ladder 200 is stainless steel.
Should be noted that at last that obviously those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these revise and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification.

Claims (20)

1. a foldable combined ladder comprises the ladder body, and described ladder body comprises for the terraced bar that supports and is arranged at intervals at laterally tramples bar on the described terraced bar; It is characterized in that: described ladder body is for " people " font, or be " one " font, or is " L " type, or is " second " font of the handstand that can hang;
Described ladder body comprises main ladder support, secondary ladder and loaded plate; Described loaded plate and described secondary ladder respectively near or be positioned at the two ends of the terraced bar of described main ladder support;
Described secondary ladder comprises the short ladder of multistage, is " one " font or the connection of angle type by the first linkage between the described short ladder of multistage;
Described secondary ladder and described main ladder support are by crossbeam, or the second linkage, or the 3rd linkage links to each other.
2. foldable combined ladder according to claim 1 is characterized in that:
Described ladder body is for " second " font of the handstand that can hang or be " one " font, or is " L " type;
One end of described secondary ladder and an end of described main ladder support are connected and fixed by described crossbeam.
3. foldable combined ladder according to claim 2 is characterized in that:
Described ladder body is " second " font of the handstand that can hang, and the length of described main ladder support is close with the length of described secondary ladder; Described loaded plate and described secondary ladder lay respectively at the two ends of the terraced bar of described main ladder support, and lay respectively at the both sides of the tread of described main ladder support;
The described short ladder of the multistage of described secondary ladder is " one " font by described the first linkage and connects; The tread of described secondary ladder is parallel relative with the tread of described main ladder support, and an end of described secondary ladder and an end of described main ladder support are connected and fixed by crossbeam; Described crossbeam is simultaneously perpendicular to the tread of described main ladder support and the tread of described secondary ladder.
4. foldable combined ladder according to claim 2 is characterized in that:
Described ladder body is " one " font, or is " L " type;
The described short ladder of the multistage of described secondary ladder is " one " font and connects; Described crossbeam links to each other with described secondary ladder docking with described main ladder support simultaneously, and the tread of described main ladder support and the tread of described secondary ladder are in the same plane;
Angle between the tread of described loaded plate and described main ladder support is spent less than or equal to 180 more than or equal to 0 degree.
5. foldable combined ladder according to claim 1 is characterized in that:
Described ladder body " second " font for standing upside down; Described loaded plate and described secondary ladder lay respectively at the both sides of the tread of described main ladder support;
Angle between the plate face of described loaded plate and the tread of described main ladder support is greater than 0 degree;
The described short ladder of the multistage of described secondary ladder is the angle type by described the first linkage and connects, the angle type body that described secondary ladder is have two crossing sides; The end of a wherein side of described secondary ladder is connected by described the second linkage with described main ladder support, and opposite side is relative with described main ladder support.
6. foldable combined ladder according to claim 5 is characterized in that:
Angle between the both sides of described secondary ladder is 90 degree;
The end of a wherein side of described secondary ladder and an end of described main ladder support are by described vertical linking to each other of the second linkage, and the opposite side of described secondary ladder is parallel relative with described main ladder support;
Angle between the plate face of described loaded plate and the tread of described main ladder support is 90 degree.
7. foldable combined ladder according to claim 1 is characterized in that:
Described ladder body is " people " font, or is " one " font, or is " L " type;
The described short ladder of the multistage of described secondary ladder is " one " font and connects; One end of described secondary ladder and described main ladder support are hinged by described the 3rd linkage; Angle between the tread of described secondary ladder and the tread of described main ladder support, and the angle between the tread of the plate face of described loaded plate and described main ladder support are all spent less than or equal to 180 more than or equal to 0 degree.
8. foldable combined ladder according to claim 7 is characterized in that:
The position that described loaded plate is connected with described main ladder support is positioned at an end of described main ladder support; The position that described secondary ladder is connected with described main ladder support is near the other end of described main ladder support.
9. according to claim 1 to the described foldable combined ladder of 8 any one, it is characterized in that:
Described main ladder support includes the parallel described terraced bar that is oppositely arranged of two-way with described secondary ladder;
Described main ladder support comprises the ladder that multistage can splice, the every section terraced bar of master and described bar of laterally trampling that the described ladder that can splice includes two opposing parallel;
Every section described short ladder of described secondary ladder includes two parallel relative secondary terraced bars.
10. foldable combined ladder according to claim 9 is characterized in that:
Fixing by the connecting joint docking between the ladder that the multistage of described main ladder support can splice, or the suit that can mutually stretch, and be bolted.
11. foldable combined ladder according to claim 9 is characterized in that:
Described the first linkage is bolt, insertion slot type connector or T-shaped connector or screw rod;
Described the second linkage is the connecting rod that is arranged on the described main ladder support;
Described the 3rd linkage is connecting screw rod or junction plate or hinge type slot or is identical connecting rod with described the second linkage.
12. foldable combined ladder according to claim 9 is characterized in that:
Described the first linkage, described the second linkage and described the 3rd linkage are the hinge that can fold;
What every section described short ladder of described secondary ladder or wherein be welded with one or more cross support arms on one section described short ladder, described cross support arm were parallel to described main ladder support laterally tramples bar.
13. foldable combined ladder according to claim 12 is characterized in that:
Also be provided with one near described the first linkage place and be parallel to described transverse support bar of laterally trampling bar.
14. foldable combined ladder according to claim 13 is characterized in that:
Close described the second linkage place also is provided with and is parallel to described another root transverse support bar of laterally trampling bar.
15. to the described foldable combined ladder of 8 any one, it is characterized in that according to claim 1:
Described loaded plate and described main ladder support are hinged.
16. foldable combined ladder according to claim 15 is characterized in that:
An end that is connected with described loaded plate of described main ladder support also is provided with and can drives the roller that described ladder body moves.
17. foldable combined ladder according to claim 16 is characterized in that:
Described roller is arranged on the terraced bar of described main ladder support, and is positioned on the tread of a side relative with described loaded plate of described main ladder support; Described roller is two, is provided with connecting rod between two described rollers.
18. foldable combined ladder according to claim 15 is characterized in that:
The bottom surface of described loaded plate also is provided with two expansion links, and described two described expansion links are two terraced bars of master of close described main ladder support respectively; Described expansion link can be to flexible with the parallel opposite side of plate face of described loaded plate.
19. to the described foldable combined ladder of 8 any one, it is characterized in that according to claim 1:
The cross section of described main ladder support and secondary ladder is non-circular structure.
20. foldable combined ladder according to claim 19 is characterized in that:
The material of described main ladder support and described secondary ladder is stainless steel.
CN 201220405030 2012-08-15 2012-08-15 Folded combination ladder Expired - Fee Related CN202866629U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103590744A (en) * 2012-08-15 2014-02-19 珠海格力电器股份有限公司 Foldable combination ladder
CN108868572A (en) * 2018-07-02 2018-11-23 郭铁建 A kind of new-type agricultural adjustable height multifunctional ladder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103590744A (en) * 2012-08-15 2014-02-19 珠海格力电器股份有限公司 Foldable combination ladder
CN103590744B (en) * 2012-08-15 2016-09-28 珠海格力电器股份有限公司 Foldable combined ladder
CN108868572A (en) * 2018-07-02 2018-11-23 郭铁建 A kind of new-type agricultural adjustable height multifunctional ladder
CN108868572B (en) * 2018-07-02 2019-12-06 浙江兴岛机械股份有限公司 Novel height-adjustable multifunctional ladder for agriculture

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