CN103590744B - Foldable combined ladder - Google Patents
Foldable combined ladder Download PDFInfo
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- CN103590744B CN103590744B CN201210290777.7A CN201210290777A CN103590744B CN 103590744 B CN103590744 B CN 103590744B CN 201210290777 A CN201210290777 A CN 201210290777A CN 103590744 B CN103590744 B CN 103590744B
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Abstract
The invention discloses a kind of foldable combined ladder, including ladder body, described ladder body include the ladder bars for supporting and be arranged at intervals in described ladder bars laterally trample bar；Described this physical ability of ladder be changed to four kinds trapezoidal, and four kinds trapezoidal be respectively " people " font, " one " font, " L " type and " second " fonts of hangable handstand；Described ladder body includes main ladder support, secondary ladder and loading plate；Described loading plate and described secondary ladder respectively close to or be positioned at the two ends of ladder bars of described main ladder support；Described secondary ladder includes the short ladder of multistage, and described in multistage, between short ladder, by the first attachment means, in " one " font or angle-style connects；Described secondary ladder is connected by the second attachment means or the 3rd attachment means with described main ladder support.The foldable combined ladder of the present invention is rational in infrastructure, convenient in carrying；Simple to operate, practical, several functions can be realized, it is adaptable to multiple use and operating type, and its cost is relatively low.
Description
Technical field
The present invention relates to work high above the ground and transport field, be specifically related to a kind of foldable combined ladder.
Background technology
At present, the installation of air-conditioner outdoor unit substantially belongs to work high above the ground, and no matter installation environment is that the most unsettled support of grid platform, airbreak platform is installed, and all there is great potential safety hazard, easily occurs that personnel slip and the security incident of air crash pendant thing；At present, main use multi-functional can fold, can assemble, light small and exquisite omnipotent ladder to be to solve the problems referred to above；
The existing omnipotent ladder in market is mostly " one " font or " people " font, but the function of the two is the most single, shape after overlapping and the shape underaction launched, and support expansion can not be changed according to the actual installation situation of off-premises station, it is difficult to meets air-conditioning installation requirements well.
Summary of the invention
It is an object of the invention to provide a kind of multifunctional ladder simple to operate, can be by splicing and combining realization " one " word ladder, " people " word ladder, " L " type ladder, the Multifunctional Conversion that " second " word that falls is terraced, also can stack and be combined as means of transport, for air-conditioner and the heavier carrying work installing equipment.
The above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of foldable combined ladder, including ladder body, described ladder body include the ladder bars for supporting and be arranged at intervals in described ladder bars laterally trample bar；Described ladder body is " people " font, or is " one " font, or is " L " type, or is " second " font of hangable handstand；
Described ladder body includes main ladder support, secondary ladder and loading plate；Described loading plate and described secondary ladder respectively close to or be positioned at the two ends of ladder bars of described main ladder support；
Described secondary ladder includes the short ladder of multistage, and described in multistage, between short ladder, by the first attachment means, in " one " font or angle-style connects；
Described secondary ladder passes through crossbeam, or the second attachment means with described main ladder support, or the 3rd attachment means is connected.
Wherein in an embodiment, described ladder body is " second " font of hangable handstand or is " one " font, or is " L " type；
One end of described secondary ladder is connected fixing with one end of described main ladder support by described crossbeam.
Wherein in an embodiment, described ladder body is " second " font of hangable handstand, the length of described main ladder support and the similar length of described secondary ladder；Described loading plate and described secondary ladder lay respectively at the two ends of the ladder bars of described main ladder support, and lay respectively at the both sides of the tread of described main ladder support；
Short ladder described in the multistage of described secondary ladder is connected in " one " font by described first attachment means；The tread of described secondary ladder is parallel with the tread of described main ladder support relative, and described secondary one end of ladder is connected fixing with one end of described main ladder support by crossbeam；Described crossbeam is both perpendicular to the tread of described main ladder support and the tread of described secondary ladder.
Wherein in an embodiment, described ladder body is " one " font, or is " L " type；
Short ladder described in the multistage of described secondary ladder connects in " one " font；Described crossbeam is connected with described main ladder support and described secondary ladder docking simultaneously, and the tread of described main ladder support is in the same plane with the tread of described secondary ladder；
Angle between the tread of described loading plate and described main ladder support is less than or equal to 180 degree more than or equal to 0 degree.
Wherein in an embodiment, described ladder body is " second " font stood upside down；Described loading plate and described secondary ladder lay respectively at the both sides of the tread of described main ladder support；
Angle between plate face and the tread of described main ladder support of described loading plate is more than 0 degree；
Described in the multistage of described secondary ladder, short ladder is that angle-style connects by described first attachment means, makes described secondary ladder in the angle-style body with two crossing sides；The end of the wherein side of described secondary ladder is connected by described second attachment means with described main ladder support, and opposite side is relative with described main ladder support.
Wherein in an embodiment, the angle between the both sides of described secondary ladder is 90 degree；
The end of the wherein side of described secondary ladder is vertically connected by described second attachment means with one end of described main ladder support, and the opposite side of described secondary ladder is parallel with described main ladder support relative；
Angle between plate face and the tread of described main ladder support of described loading plate is 90 degree.
Wherein in an embodiment, described ladder body is " people " font, or is " one " font, or is " L " type；
Short ladder described in the multistage of described secondary ladder connects in " one " font；One end of described secondary ladder is hinged by described 3rd attachment means with described main ladder support；Angle between tread and the tread of described main ladder support of described secondary ladder, and the angle between the plate face of described loading plate and the tread of described main ladder support, be all higher than equal to 0 degree less than or equal to 180 degree.
Wherein in an embodiment, the position that described loading plate is connected with described main ladder support is positioned at one end of described main ladder support；The other end being located proximate to described main ladder support that described secondary ladder is connected with described main ladder support.
Wherein in an embodiment, described main ladder support and described secondary ladder all include the described ladder bars that two-way is oppositely arranged in parallel；
Described main ladder support includes the ladder that multistage is sliceable, and every section of described sliceable ladder all includes two opposing parallel main ladder bars and described laterally tramples bar；
Every section of described short ladder of described secondary ladder all includes two parallel relative secondary ladder bars.
Wherein in an embodiment, fixing by connecting joint docking between the ladder that the multistage of described main ladder support is sliceable, or the suit that can mutually stretch, and be bolted.
Wherein in an embodiment, described first attachment means is bolt, insertion slot type connector or T-shaped connector or screw rod；
Described second attachment means is the slot being arranged on described main ladder support；
Described 3rd attachment means is to connect screw rod or connecting plate or hinge-type slot or is identical connecting rod with described second attachment means.
Wherein in an embodiment, described first attachment means, described second attachment means and described 3rd attachment means are folding hinge；
Being welded with one or more transverse support bar on every section of described short ladder of described secondary ladder or wherein one section of described short ladder, what described transverse support bar was parallel to described main ladder support laterally tramples bar.
Wherein in an embodiment, at described first attachment means, it is additionally provided with one is parallel to the described transverse support bar laterally trampling bar.
Wherein in an embodiment, it is additionally provided with at described second attachment means and is parallel to described another root transverse support bar laterally trampling bar.
Wherein in an embodiment, described loading plate is hinged with described main ladder support.
Wherein in an embodiment, the connection of described main ladder support has one end of described loading plate to be additionally provided with the roller that described ladder body can be driven to move.
Wherein in an embodiment, described roller is arranged in the ladder bars of described main ladder support, and is positioned on the tread of the side relative with described loading plate of described main ladder support；Described roller is two, is provided with connecting rod between two described rollers.
Wherein in an embodiment, the bottom surface of described loading plate is additionally provided with two expansion links, and described two described expansion links are respectively close to two main ladder bars of described main ladder support；Described expansion link can stretch to the plate face opposite parallel sides with described loading plate.
Wherein in an embodiment, the cross section of described main ladder support and secondary ladder is non-circular structure.
Wherein in an embodiment, the material of described main ladder support and described secondary ladder is rustless steel.
Beneficial effects of the present invention:
The foldable combined ladder of the present invention is rational in infrastructure, convenient in carrying；Simple to operate, practical, several functions can be realized, it is adaptable to multiple use and operating type, and its cost is relatively low.
Accompanying drawing explanation
Purpose, technical scheme and advantage for foldable combined ladder making the present invention and combinations thereof method are clearer, below in conjunction with drawings and Examples, the present invention is described in further details, but, should be noted that, specific embodiment discussed below is merely to illustrate the present invention, but is not used to limit the scope of the present invention.
Fig. 1 a is the first embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Fig. 1 b be the first embodiment of foldable combined ladder of the present invention be L " type schematic diagram during loading；
Fig. 1 c be the first embodiment of foldable combined ladder of the present invention in " one " font " schematic diagram；
Fig. 2 a is the second embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Fig. 2 b is the second embodiment schematic diagram in " people " font of foldable combined ladder of the present invention；
Fig. 2 c is that the second embodiment of foldable combined ladder of the present invention is L-shaped and schematic diagram during loading；
Fig. 3 a is the third embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Fig. 3 b is the third embodiment schematic diagram in " people " font of foldable combined ladder of the present invention；
Fig. 4 a is the 4th kind of embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Fig. 4 b is the 4th kind of embodiment of the foldable combined ladder of the present invention schematic diagram in " people " font；
Fig. 4 c is that the 4th kind of embodiment of foldable combined ladder of the present invention be L-shaped and schematic diagram during loading；
Fig. 5 a is the 5th kind of embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Fig. 5 b is the 5th kind of embodiment of the foldable combined ladder of the present invention schematic diagram in " people " font；
Fig. 6 a is the 6th kind of embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Fig. 6 b is the 6th kind of embodiment of the foldable combined ladder of the present invention schematic diagram in " people " font；
Fig. 7 a is the 7th kind of embodiment schematic diagram in " second " font of foldable combined ladder of the present invention；
Detailed description of the invention
Foldable combined ladder in the present embodiment, including ladder body, described ladder body include for support ladder bars and be arranged at intervals in described ladder bars laterally trample bar；Described ladder body foldable combination is " second " font of hangable handstand, or " people " font, or is " one " font, or is " L " type；May be used to meet carrying and the installation of off-premises station of the use requirement of several work, especially air-conditioning.
Further, described ladder body includes main ladder support 100, secondary ladder 200 and loading plate 300；Described loading plate 300 and described secondary ladder 200 respectively close to or be positioned at the two ends of ladder bars of described main ladder support 100；
Described secondary ladder 200 includes the short ladder of multistage, and described in multistage, between short ladder, by the first attachment means, in " one " font or angle-style connects, it is preferable that the described secondary ladder 200 in the present embodiment includes two sections short ladders 210,220；Described secondary ladder 200 and described main ladder support 100 are by crossbeam 411,412, or the second attachment means, or the 3rd attachment means is connected.
Preferably, the described main ladder support 100 in the present embodiment and described secondary ladder 200 all include the described ladder bars that two-way is oppositely arranged in parallel；
Further, described main ladder support 100 includes the sliceable ladder of multistage, and in the present embodiment, the sliceable ladder of described multistage is two sections, respectively first ladder the 110, second ladder 120；The ladder bars of every section of described sliceable ladder connects relatively, forms two opposing parallel main ladder bars of described main ladder support 100, is additionally provided with and described laterally tramples bar 103 between described main ladder bars；The ladder bars of every section of described short ladder 210,220 of described secondary ladder 200 connects relatively, forms two parallel relative secondary ladder 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 loading 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 described main ladder support 100 and the similar length of described secondary ladder 200；The vertical free end making its " second " font of standing upside down is longer, may apply to more different use condition, such as, when installing air-conditioner outdoor unit, windowsill or blow vent distance flooring owing to can carry ladder are higher, then need longer climbing distance, and ladder is longer, can meet.
Further, in the first embodiment, the described short ladder 210,220 of described secondary ladder 200 is connected in " one " font by described first attachment means；Wherein, described first attachment means is bolt；The tread of described secondary ladder 200 is parallel relative with the tread of described main ladder support 100, and described secondary one end of ladder 200 is connected fixing with one end of described main ladder support 100 by two crossbeams 411,412；Described crossbeam 411,412 is both 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 converted in for " L " type, or be " one " font by " second " font stood upside down, as shown in figs. lb and lc；Described crossbeam 411,412 is connected with described main ladder support 100 and described secondary ladder 200 docking simultaneously, and the tread of described main ladder support 100 is in the same plane with the tread of described secondary ladder 200；
Wherein, after described ladder ontology transformation is in for " one " font, open loading plate 300, the most convertible L-shaped, and loading plate 300 bearing goods can be used；
When described ladder body is in " one " font, or when being " L " type, the angle between described loading plate 300 and the tread of described main ladder support 100 is less than or equal to 180 degree more than or equal to 0 degree.
As shown in Fig. 2 a～2c, for the second embodiment of the described foldable combined ladder in the present embodiment, convertible " second " font in handstand as shown in Figure 2 a of described ladder body, " people " font as shown in Figure 2 b, or for " L " type shown in Fig. 2 c；When packing up loading plate 300, it is also possible in " one " font；
As shown in Figure 2 a, 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 loading plate 300 is hinged with described main ladder support 100；The bottom surface of described loading plate is additionally provided with two expansion links 310,320, and two described expansion links 310,320 are respectively close to two main ladder bars of described main ladder support 100.
In the second embodiment, when " second " font ladder in handstand as shown in Figure 2 a of described ladder body, described loading plate 300 and described secondary ladder 200 lay respectively at the both sides of the tread of described main ladder support 100；Angle between plate face and the tread of described main ladder support 100 of described loading plate 300 is more than 0 degree；
Further, the described short ladder 210,220 of described secondary ladder 200 is that angle-style connects by described first attachment means, makes described secondary ladder 200 in the angle-style body with two crossing sides；The short ladder of end that is first 210 of the wherein side of described secondary ladder 200 is connected by described second attachment means with described main ladder support 100, and the short ladder of opposite side that is second 220 is relative with described main ladder support 100；
Preferably, the angle between the both sides of described secondary ladder 200 is 90 degree；It is vertically connected between i.e. first short ladder the 210, second short ladder 220；
Preferably, the end of the wherein side of described secondary ladder 200 is vertically connected by described second attachment means with one end of described main ladder support 100, and the opposite side of described secondary ladder 200 is parallel relative with described main ladder support 100；As shown in Figure 2 a, the first short ladder 210 is vertically connected with described main ladder support 100, and the second short ladder 220 is parallel relative with described main ladder support 100；More preferably, the angle between plate face and the tread of described main ladder support 100 of described loading plate 300 is also 90 degree.
As shown in figs. 2 b and 2 c, in the second embodiment, described ladder ontology transformation is in " people " font with during " L " type ladder, and the described short ladder 210,220 of described secondary ladder 200 connects in " one " font；One end of described secondary ladder 200 is hinged by described 3rd attachment means with described main ladder support 100；Angle between tread and the tread of described main ladder support 100 of described secondary ladder 200, and the angle between the plate face of described loading plate 300 and the tread of described main ladder support 100, be all higher than equal to 0 degree less than or equal to 180 degree；When in " people " font, the angle between tread and the tread of described main ladder support 100 of described secondary ladder 200 is less than 180 degree more than 0 degree；When described ladder body is L-shaped, the described secondary tread of ladder 200 coincides with the tread of described main ladder support 100, and angle therebetween is 0 degree；Angle between plate face and the tread of described main ladder support 100 of described loading plate 300 is less than 180 degree more than 0 degree, preferably 90 degree, in order to well bearing goods or the pedal force of people；When L-shaped ladder time, the plate face of described loading plate 300 is folded to the tread with described main ladder support 100 coincide time, just can make described foldable combined ladder convert in " one " font.
Further, the position that described loading plate 300 is connected with described main ladder support 100 is positioned at one end of described main ladder support 100；The other end being located proximate to described main ladder support 100 that described secondary ladder 200 is connected with described main ladder support 100.
As shown in Fig. 2 a～2c, when the described foldable combined ladder in the present embodiment uses the second embodiment, it is T-shaped connector 510 for connecting described first attachment means of described first short ladder 210 and the second short ladder 220；For making described secondary ladder 200 be connected with described main ladder support 100, converting described second attachment means in " second " font ladder stood upside down is to be arranged at the slot 610 of described main ladder support 100 end；For making described secondary ladder 200 be connected with described main ladder support 100, conversion in " people " font, described 3rd attachment means of " L " type and " one " font be connection screw rod 710；
As shown in Fig. 3 a～3b, when described foldable combined ladder in the present embodiment uses the third embodiment, it is possible to conversion " second " font in handstand as shown in Figure 3 a, " people " font as shown in Figure 3 b, or it it is " L " type, when packing up loading plate 300, it is also possible in " one " font；
In the third embodiment, can mutually stretch between the sliceable ladder 110,120 of described main ladder support suit, and is bolted；It is more convenient for converting the height of main ladder support 100, to adapt to different use conditions；
See Fig. 3 b, and be used for making described secondary ladder 200 be connected with described main ladder support 100, convert in " people " font, described 3rd attachment means of " L " type and " one " font then changes connecting plate 720 into；
Further, other implementation content in the third embodiment is then identical with the second embodiment.
As shown in Figure 4 a ~ 4c, the 4th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure is essentially identical with embodiment two, three, and difference is:
The connection of described main ladder support 100 has one end of described loading plate 300 to be additionally provided with the roller that described ladder body can be driven to move, and the quantity of the described roller in the present embodiment is two, respectively first roller the 330, second roller 340.
Preferably, described roller 330,340 is arranged in the main ladder bars of described main ladder support, and is positioned on the tread with described loading plate opposite side of described main ladder support；It is provided with connecting rod 350 between two described rollers 330,340.
Preferably, the first roller, the second roller are respectively three steamboats and constitute, as illustrated in fig. 4 c, when the conversion of described foldable combined ladder is L-shaped, it is also possible to be used for drawing loading thing；And conveniently draw loading thing to go upstairs.
See Fig. 4 a and Fig. 4 b, and be used for making described secondary ladder 200 be connected with described main ladder support 100, make described ladder ontology transformation in " people " font, described 3rd attachment means of " L " type and " one " font is hinge-type slot 730；Described hinge-type slot 730 makes described secondary ladder 200 simpler, convenient with being connected of described main ladder support 100；
As shown in Fig. 5 a～5b, the 5th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure is essentially identical with embodiment four, and difference is:
It is insertion slot type connector 520 for connecting described first attachment means of described first short ladder 210 and the second short ladder 220；And described second attachment means and described 3rd attachment means are connecting rod 620；So, can reconnect between main ladder support 100 and secondary ladder 200 and just can make the conversion between " second " font, " people " font, " L " type and " one " font stood upside down of described foldable combined ladder.
Preferably, at described connecting rod 620, it is additionally provided with one and is parallel to the described transverse support bar 810 laterally trampling bar 103；It is additionally provided with at described second attachment means and is parallel to described another root transverse support bar 820 laterally trampling bar 103；When the conversion of described foldable combined ladder is in " second " font stood upside down, described transverse support bar 810 can ensure that and makes described secondary ladder 200 be vertically connected with described main ladder support 100, and another root transverse support bar 820 described can ensure that and is vertically connected between the first short ladder 210 and the second short ladder 220.
As shown in Fig. 6 a～6b, the 6th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure is essentially identical with embodiment five, and difference is:
Described first attachment means is folding hinge 530, and described second attachment means and described 3rd attachment means are another folding hinge；
In six kinds of embodiments, three attachment means all use Hinge, make the conversion more direct, convenient of described foldable combined ladder in " second " font stood upside down, or " people " font, " L " type and " one " font；And transverse support bar 810,820 can be saved；By rationally arranging the position of secondary ladder 200, just can ensure that when lifting secondary ladder 200 and make that its one end is vertical with main ladder support 100 pushes up mutually；Another folding hinge 630 then makes can be with the arbitrarily angled folding less than or equal to 180 between the first short ladder 210 and the second short ladder 220, in order to be suitable for different use occasions.
As shown in Figure 7a, the 7th kind of embodiment of the described foldable combined ladder in the present embodiment, its primary structure is also essentially identical with embodiment five, and difference is:
Described first attachment means is screw rod 540；The first short ladder 210 is so made can arbitrarily angled to fold with the second short ladder 220, to be suitable for more use occasion.
Preferably, as shown in Fig. 5 a, 6a, 7a, in every section of described short ladder 210,220 of the described secondary ladder 200 in embodiment five, six, seven, or wherein it is welded with one or more transverse support bar on one section of described short ladder, what described transverse support bar was parallel to described main ladder support laterally tramples bar 103.
Preferably, described main ladder support 100 and the cross section of secondary ladder 200 in the present embodiment are non-circular structure, the most then use square structure.
Preferably, in above-mentioned embodiment, the material of described main ladder support 100 and described secondary ladder 200 is rustless steel.
It is last it should be noted that, it will be apparent that those skilled in the art can carry out various change and modification without departing from the spirit and scope of the present invention to the present invention.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (20)
1. a foldable combined ladder, including ladder body, described ladder body include for support ladder bars and be arranged at intervals in described ladder bars laterally trample bar；It is characterized in that: described this physical ability of ladder be changed to four kinds trapezoidal, and four kinds trapezoidal be respectively " people " font, " one " font, " L " type and " second " fonts of hangable handstand；
Described ladder body includes main ladder support, secondary ladder and loading plate；Described loading plate and described secondary ladder respectively close to or be positioned at the two ends of ladder bars of described main ladder support；
Described main ladder support and described secondary ladder all include the described ladder bars that two-way is oppositely arranged in parallel；
Angle between the tread of described loading plate and described main ladder support is less than or equal to 180 degree more than or equal to 0 degree；
Described main ladder support includes the ladder that multistage is sliceable, and every section of described sliceable ladder all includes two opposing parallel main ladder bars and described laterally tramples bar；
Described secondary ladder includes the short ladder of multistage, and described in multistage, between short ladder, by the first attachment means, in " one " font or angle-style connects；
Every section of described short ladder of described secondary ladder all includes two parallel relative secondary ladder bars；
Described secondary ladder passes through crossbeam, or the second attachment means with described main ladder support, or the 3rd attachment means is connected.
Foldable combined ladder the most according to claim 1, it is characterised in that:
When described ladder body is changed to " second " font of hangable handstand, " one " font or " L " type;
One end of described secondary ladder is connected fixing with one end of described main ladder support by described crossbeam.
Foldable combined ladder the most according to claim 2, it is characterised in that:
When described ladder body is changed to " second " font of hangable handstand, the length of described main ladder support and the similar length of described secondary ladder；Described loading plate and described secondary ladder lay respectively at the two ends of the ladder bars of described main ladder support, and lay respectively at the both sides of the tread of described main ladder support；
Short ladder described in the multistage of described secondary ladder is connected in " one " font by described first attachment means；The tread of described secondary ladder is parallel with the tread of described main ladder support relative, and described secondary one end of ladder is connected fixing with one end of described main ladder support by crossbeam；Described crossbeam is both perpendicular to the tread of described main ladder support and the tread of described secondary ladder.
Foldable combined ladder the most according to claim 2, it is characterised in that:
When described ladder body is changed to " one " font or " L " type;
Short ladder described in the multistage of described secondary ladder connects in " one " font；Described crossbeam is connected with described main ladder support and described secondary ladder docking simultaneously, and the tread of described main ladder support is in the same plane with the tread of described secondary ladder.
Foldable combined ladder the most according to claim 1, it is characterised in that:
When described ladder body is changed to " second " font stood upside down；Described loading plate and described secondary ladder lay respectively at the both sides of the tread of described main ladder support；
Angle between plate face and the tread of described main ladder support of described loading plate is more than 0 degree；
Described in the multistage of described secondary ladder, short ladder is that angle-style connects by described first attachment means, makes described secondary ladder in the angle-style body with two crossing sides；The end of the wherein side of described secondary ladder is connected by described second attachment means with described main ladder support, and opposite side is relative with described main ladder support.
Foldable combined ladder the most according to claim 5, it is characterised in that:
Angle between the both sides of described secondary ladder is 90 degree；
The end of the wherein side of described secondary ladder is vertically connected by described second attachment means with one end of described main ladder support, and the opposite side of described secondary ladder is parallel with described main ladder support relative；
Angle between plate face and the tread of described main ladder support of described loading plate is 90 degree.
Foldable combined ladder the most according to claim 1, it is characterised in that:
When described ladder body is changed to " people " font, " one " font or " L " type；
Short ladder described in the multistage of described secondary ladder connects in " one " font；One end of described secondary ladder is hinged by described 3rd attachment means with described main ladder support；Angle between tread and the tread of described main ladder support of described secondary ladder, and the angle between the plate face of described loading plate and the tread of described main ladder support, be all higher than equal to 0 degree less than or equal to 180 degree.
Foldable combined ladder the most according to claim 7, it is characterised in that:
The position that described loading plate is connected with described main ladder support is positioned at one end of described main ladder support；The other end being located proximate to described main ladder support that described secondary ladder is connected with described main ladder support.
Foldable combined ladder the most according to claim 1, it is characterised in that:
Between the ladder that the multistage of described main ladder support is sliceable fixing by connecting joint docking, or the suit that can mutually stretch, and being bolted.
Foldable combined ladder the most according to claim 9, it is characterised in that:
Described first attachment means is bolt, insertion slot type connector or T-shaped connector or screw rod；
Described second attachment means is the slot being arranged on described main ladder support；
Described 3rd attachment means is for connecting screw rod or connecting plate or hinge-type slot.
11. foldable combined ladders according to claim 9, it is characterised in that:
Described first attachment means and described second attachment means are folding hinge；
Being welded with one or more transverse support bar on every section of described short ladder of described secondary ladder or wherein one section of described short ladder, what described transverse support bar was parallel to described main ladder support laterally tramples bar.
12. foldable combined ladders according to claim 9, it is characterised in that:
Described first attachment means and described 3rd attachment means are folding hinge；
Being welded with one or more transverse support bar on every section of described short ladder of described secondary ladder or wherein one section of described short ladder, what described transverse support bar was parallel to described main ladder support laterally tramples bar.
13. foldable combined ladders according to claim 11, it is characterised in that:
At described first attachment means, it is additionally provided with one is parallel to the described transverse support bar laterally trampling bar.
14. foldable combined ladders according to claim 13, it is characterised in that:
It is additionally provided with at described second attachment means and is parallel to described another root transverse support bar laterally trampling bar.
15. according to the foldable combined ladder described in claim 1 to 8 any one, it is characterised in that:
Described loading plate is hinged with described main ladder support.
16. foldable combined ladders according to claim 15, it is characterised in that:
The connection of described main ladder support has one end of described loading plate to be additionally provided with the roller that described ladder body can be driven to move.
17. foldable combined ladders according to claim 16, it is characterised in that:
Described roller is arranged in the ladder bars of described main ladder support, and is positioned on the tread of the side relative with described loading plate of described main ladder support；Described roller is two, is provided with connecting rod between two described rollers.
18. foldable combined ladders according to claim 15, it is characterised in that:
The bottom surface of described loading plate is additionally provided with two expansion links, and two described expansion links are respectively close to two main ladder bars of described main ladder support；Described expansion link can stretch to the plate face opposite parallel sides with described loading plate.
19. according to the foldable combined ladder described in claim 1 to 8 any one, it is characterised in that:
The cross section of described main ladder support and secondary ladder is non-circular structure.
20. foldable combined ladders according to claim 19, it is characterised in that:
The material of described main ladder support and described secondary ladder is rustless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290777.7A CN103590744B (en) | 2012-08-15 | 2012-08-15 | Foldable combined ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290777.7A CN103590744B (en) | 2012-08-15 | 2012-08-15 | Foldable combined ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103590744A CN103590744A (en) | 2014-02-19 |
| CN103590744B true CN103590744B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210290777.7A Expired - Fee Related CN103590744B (en) | 2012-08-15 | 2012-08-15 | Foldable combined ladder |
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| CN (1) | CN103590744B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155829A (en) * | 2014-06-10 | 2015-12-16 | 周燕 | Outdoor operating machine of outdoor unit of air conditioner |
| CN104389508A (en) * | 2014-11-18 | 2015-03-04 | 国网安徽省电力公司阜阳供电公司 | High-altitude special operation platform |
| CN109140361A (en) * | 2018-09-25 | 2019-01-04 | 江苏鑫顺达智慧照明科技有限公司 | A kind of solar street light convenient for repairing by climbing |
| CN113696156A (en) * | 2021-08-31 | 2021-11-26 | 长沙学院 | Supplementary installation maintenance device of outer machine of portable air conditioner |
Citations (7)
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|---|---|---|---|---|
| US3104889A (en) * | 1963-09-24 | branch | ||
| US5382032A (en) * | 1993-06-11 | 1995-01-17 | Wilson; James R. | Stepladder dolly |
| CN2700534Y (en) * | 2004-04-28 | 2005-05-18 | 冯丽君 | Air-conditioning ladder |
| CN2737925Y (en) * | 2004-09-09 | 2005-11-02 | 厦门市十方实业有限公司 | Multifunction ladder |
| CN2878642Y (en) * | 2005-12-06 | 2007-03-14 | 王朝森 | Improved multi-purpose ladder |
| CN201486460U (en) * | 2009-08-03 | 2010-05-26 | 广州市新惠宝日用品有限公司 | Ladder and handcart combined device |
| CN202866629U (en) * | 2012-08-15 | 2013-04-10 | 珠海格力电器股份有限公司 | Folded combination ladder |
-
2012
- 2012-08-15 CN CN201210290777.7A patent/CN103590744B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3104889A (en) * | 1963-09-24 | branch | ||
| US5382032A (en) * | 1993-06-11 | 1995-01-17 | Wilson; James R. | Stepladder dolly |
| CN2700534Y (en) * | 2004-04-28 | 2005-05-18 | 冯丽君 | Air-conditioning ladder |
| CN2737925Y (en) * | 2004-09-09 | 2005-11-02 | 厦门市十方实业有限公司 | Multifunction ladder |
| CN2878642Y (en) * | 2005-12-06 | 2007-03-14 | 王朝森 | Improved multi-purpose ladder |
| CN201486460U (en) * | 2009-08-03 | 2010-05-26 | 广州市新惠宝日用品有限公司 | Ladder and handcart combined device |
| CN202866629U (en) * | 2012-08-15 | 2013-04-10 | 珠海格力电器股份有限公司 | Folded combination ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103590744A (en) | 2014-02-19 |
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