CN206429185U - A kind of double ladder and multifunctional ladder - Google Patents

Abstract

The utility model provides a kind of double ladder and multifunctional ladder, belongs to Multipurpose ladder technical field.The double ladder is hinged by two ladders and constituted, wherein at least one ladder is the first ladder, first ladder includes frame, the first connector, locating part and multiple pedals, pedal is rotatablely connected with frame by first rotating shaft, each pedal is hinged with the first connector respectively, multiple pedals can be simultaneously relative to gantry rotation by the first connector, and frame has the first end close to two ladder hinged places, and locating part is located at first end.Its is vdiverse in function, and preferably, operator in use, if the higher position in double ladder, can realize that common double ladder becomes the function of slide, be easy to operator's rapid decrease, to the area of safety using effect by operating locating part.The multifunctional ladder includes double ladder mentioned above, and it has the repertoire of double ladder.

Description

A kind of double ladder and multifunctional ladder

Technical field

The utility model is related to Multipurpose ladder technical field, in particular to a kind of double ladder and multifunctional ladder.

Background technology

Double ladder is also referred to as folding step, the class ascending tool being operated for side space in the plane, because of it in use, preceding Ladder bars and ground afterwards constitute an isosceles triangle, it appears that be referred to as ' herringbone as ' people ' word, thus its image Ladder '.

Practical double ladder has fixed double ladder and moving herringbone ladder.Fixed double ladder is that people build instrument temporarily；It is living Dynamic double ladder is that the top of two ladders is connected together with loose-leaf, can be flexible due to it altogether when mobile Property, therefore be widely used in ascending a height in operation temporarily.The double ladder of early stage is usually what timber made, with the hair of metal industry Exhibition, it is now to utilize aluminum alloy materials more；The characteristics of aluminium alloy herringbone ladder has light, attractive in appearance and durable, and cost is not high, therefore by Widely use.

Inventor has found that traditional double ladder at least has the following disadvantages under study for action：

Function is single, and using effect is poor；

Workman during operation, runs into emergency on double ladder, easily injured during descending stair.

Utility model content

The purpose of this utility model is the provision of a kind of double ladder, improves the deficiencies in the prior art, its is vdiverse in function, makes With effect preferably, operator in use, if the higher position in double ladder, can be realized common by operating locating part Double ladder becomes the function of slide, is easy to operator's rapid decrease, to the area of safety, slides effect preferably, overall using effect Preferably.

Another object of the present utility model is the provision of a kind of multifunctional ladder, and it can realize multiple ladders while making With vdiverse in function, its reasonable in design, mechanism is compact, is hinged or detachable connection, made by similar and different ladder Obtain the multifunctional ladder and can adapt to different environment, this is simple in construction, and manufacturing cost is low, and market application potential is huge, uses Effect is preferable.

What embodiment of the present utility model was realized in：

Embodiment of the present utility model provides a kind of double ladder, is hinged and constituted by two ladders, wherein at least one ladder Son is the first ladder, and the first ladder includes frame, the first connector, locating part and multiple pedals, and pedal can by first rotating shaft What is rotated is connected to frame, and each pedal is hinged with the first connector respectively, and multiple pedals can be by the first connector simultaneously Relative to gantry rotation, frame has the first end close to two ladder hinged places, and locating part is located at first end, the first ladder Tilted and by spacing relative to the length direction of frame relative to the rotatable first state of frame, and pedal with pedal Part makes pedal relative to the second state that frame is fixed.

Multiple pedals are operated to be rotated simultaneously relative to frame simultaneously specifically, the double ladder is realized by the first connector, When needing, locating part is operated, multiple pedals are realized relative to gantry rotation or fixation, its is simple in construction, vdiverse in function, If operator is in the higher position of double ladder, it can realize that common double ladder becomes the ladder that can be slided by operating locating part Son, operator reduces damage to greatest extent by the ladder rapid decrease.The reasonable in design, overall using effect Preferably.

Optionally, pedal is relatively fixed with first rotating shaft and is connected to frame, machine along the axially slidable of first rotating shaft The groove that is embedded being equipped with for being embedded pedal is set up, locating part is articulated with frame, one end of locating part and the connection of the first connector, limit When the other end of position part is rotated, the first connector can make pedal closer or far from groove is embedded, in the first state, and pedal departs from It is embedded groove and pedal is rotatable relative to frame, in the second condition, pedal, which is embedded at, is embedded in groove and pedal is relative to frame It is fixed.

Optionally, the first ladder also includes return unit, and frame and pedal are connected by return unit, and return unit makes pedal have Close to the movement tendency for being embedded groove.

Optionally, being provided with close to the side for being embedded groove for pedal coordinates be embedded groove to be embedded portion.

Optionally, locating part includes handle part, auxiliary section and the rotation section being connected with gantry rotation, and auxiliary section and first connect Fitting is connected, and handle part and matching part are in the both sides of rotation section, and the length of handle part is more than the length of auxiliary section.

Optionally, the quantity of locating part is two, and two locating parts are respectively at the close first end of frame and remote At first end, two handle parts of two locating parts are connected by connecting rod, and connecting rod, frame and two locating parts constitute four bars Mechanism.

Optionally, frame is provided with chute, and length direction extension of the chute along frame, the first ladder also includes transport group Part, transport assembly includes the second connector, control piece and sliding part, and sliding part includes the slip being slidably embedded in chute Portion and the first connecting portion for being connected with tool box, control piece are located at the close first end of frame, and the one of the second connector End and sliding part connection, the other end and the control piece connection of the second connector, control piece control sliding part closer or far from control Part.

Optionally, control piece includes runner and bull stick, and runner is rotatablely connected with frame around the second rotating shaft, and runner is set There is a turn hole, turn hole is close to the edge of runner, and the axis of the axis of turn hole and the second rotating shaft is arranged side by side, and bull stick is slidably worn In turn hole, one end of the second connector and sliding part connection, the other end winding runner of the second connector are sliding during rotating wheel Moving part is closer or far from runner, and turn hole is through hole, control piece have runner can relative to gantry rotation the third state, and One end of bull stick abuts frame and runner is relative to the 4th state that frame is fixed.

Optionally, other in which ladder is the second ladder, and the second ladder is slide, and slide is provided with slide plate, slide plate It is provided with hole of creeping.

Embodiment of the present utility model additionally provides a kind of multifunctional ladder, and it includes the 3rd ladder and people mentioned above Word ladder, the two ends of the 3rd ladder are removably connected to the two ends of double ladder, and one end close to the first ladder of the 3rd ladder is set Second connecting portion is equipped with, the first ladder is provided with the 3rd connecting portion for coordinating second connecting portion, and multifunctional ladder has the 3rd ladder 5th state of son and double ladder formation triangle, and second connecting portion coordinates the 3rd connecting portion and the 3rd ladder is terraced along first The 6th state that the length direction of son is set.

Specifically, the multifunctional ladder includes double ladder mentioned above, its repertoire with the double ladder, and by In having additional the 3rd ladder so that the function of the multifunctional ladder is more diversified, and its is reasonable in design, and mechanism is compact, by not Same or identical ladder is hinged or detachable connection so that the multifunctional ladder can adapt to different environment, structure letter Single, manufacturing cost is low, and market application potential is huge, and using effect is preferable.

Compared with prior art, the beneficial effect of the utility model embodiment is：

In summary, the double ladder is realized by the first connector operates multiple pedals to turn simultaneously relative to frame simultaneously It is dynamic, when needing, locating part is operated, multiple pedals are realized relative to gantry rotation or fixation, its is simple in construction, and function is more Sample, if operator is in the higher position of double ladder, can realize that common double ladder becomes to slide by operating locating part Ladder, operator by the ladder rapid decrease, and to greatest extent reduce damage.The reasonable in design, is integrally used Effect is preferable.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the schematic diagram under the second state of the double ladder that the utility model embodiment 1 is provided；

Fig. 2 is the schematic diagram under the first state of the double ladder shown in Fig. 1；

Fig. 3 is the schematic diagram for being embedded groove of the double ladder shown in Fig. 1；

Fig. 4 is the schematic diagram of the second ladder of the double ladder shown in Fig. 1；

Fig. 5 is the schematic diagram for the locating part that the utility model embodiment 2 is provided；

Fig. 6 is the schematic diagram of the transport assembly for the double ladder that the utility model embodiment 3 is provided；

Fig. 7 is the partial enlarged drawing at the VII of the double ladder shown in Fig. 6；

Fig. 8 is the schematic diagram for the multifunctional ladder that the utility model embodiment 4 is provided.

Icon：200- multifunctional ladders；100- double ladders；The ladders of 11- first；The ladders of 13- second；The ladders of 21- the 3rd； 111- frames；The connectors of 113- first；114- transport assemblies；115- locating parts；116- return units；117- pedals；119- first Rotating shaft；1111- is embedded groove；1113- chutes；1171- is embedded portion；1151- handle parts；1153- rotation sections；1155- auxiliary sections； The connectors of 1141- second；1143- control pieces；1145- sliding parts；11431- runners；11433- bull sticks；11435- turn holes；210- Second connecting portion；The connecting portions of 110- the 3rd；131- slide plates；1311- creeps hole；31- tool boxes.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.

Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.

, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model Or position relationship is that, based on orientation shown in the drawings or position relationship, or the utility model product is usually put when using Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying phase To importance.

In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Embodiment 1

Fig. 1 is refer to, a kind of double ladder 100 is present embodiments provided, is hinged and constituted by two ladders.

Two ladders being hinged show " people " font.The double ladder 100 can be widely applied to side space in the plane In this kind of environment of operation, as ascending tool, double ladder 100 has its distinctive practical significance.

Fig. 1 and 2 is refer to, specifically, the wherein at least one ladder of the double ladder 100 is the first ladder 11, the first ladder Son 11 includes frame 111, the first connector 113, locating part 115 and multiple pedals 117, and pedal 117 can by first rotating shaft 119 What is rotated is connected to frame 111, and each pedal 117 is hinged with the first connector 113 respectively, and multiple pedals 117 connect by first Fitting 113 can be rotated relative to frame 111 simultaneously, and frame 111 has the first end close to two ladder hinged places, locating part 115 are located at first end, and the first ladder 11 has pedal 117 relative to the rotatable first state of frame 111, and pedal 117 relative to frame 111 length direction tilt and make that pedal 117 fixes relative to frame 111 by locating part 115 second State.

The double ladder 100 is realized by the first connector 113 operates multiple pedals 117 relative to frame 111 simultaneously simultaneously Rotate, when needing, operate locating part 115, realize that multiple pedals 117 are rotated or fixed relative to frame 111, its structure Simply, it is vdiverse in function, can be by operating locating part 115 to realize ordinary people if operator is in the higher position of double ladder 100 Word ladder 100 becomes the function for the ladder that can be slided, and operator reduces damage to greatest extent by the ladder rapid decrease Wound.The reasonable in design, overall using effect is preferable.

Fig. 3 is refer to, optionally, pedal 117 is relatively fixed with first rotating shaft 119 and can along the axial direction of first rotating shaft 119 That slides is connected to frame 111, and frame 111 is provided with and is embedded groove 1111 for be embedded pedal 117, and locating part 115 is articulated with Frame 111, one end of locating part 115 and the first connector 113 are connected, when the other end of locating part 115 is rotated, the first connector 113 can make pedal 117 closer or far from groove 1111 is embedded, in the first state, and pedal 117, which departs from, is embedded groove 1111 and pedal 117 is rotatable relative to frame 111, in the second condition, pedal 117 be embedded at be embedded in groove 1111 and pedal 117 relative to Frame 111 is fixed.

Specifically, the pedal 117 can be fixedly connected with first rotating shaft 119, it can also be integrally formed.Pass through pedal 117 Itself clamping is embedded groove 1111, and preferably, pedal 117 can not be rotated fixed effect relative to frame 111, facilitate operator ascending a height During, it is not easy to slip.During rotary spacing part 115, according to lever principle, it can realize that the driving of the first connector 113 is stepped on Plate 117 is closer or far from groove 1111 is embedded, and using effect is preferable.

The locating part 115 is hinged by ball pivot and frame 111, the locating part 115 around first rotating shaft 119 rotate when, can be with Realize that multiple pedals 117 are rotated simultaneously.When length direction of the locating part 115 along first rotating shaft 119 is rotated, pass through the first connection The pulling function of part 113, the width of the pedal 117 along frame 111 is moved, and is departed from pedal 117 and is embedded groove 1111 or embedding Located at being embedded in groove 1111.

Herein, the pedal 117 and first rotating shaft 119 it is common relative to frame 111 slidably or, this first Rotating shaft 119 is fixedly connected with frame 111, and the first rotating shaft 119 is arranged in pedal 117, and the pedal 117 is relative to first rotating shaft 119 it is axially slidable.

Optionally, the first ladder 11 also includes return unit 116, and frame 111 and pedal 117 are connected by return unit 116, multiple Position part 116 makes pedal 117 have close to the movement tendency for being embedded groove 1111.

The return unit 116 can be spring, elastic drag rope or other elastic constructions, due to having additional return unit 116 so that Pedal 117 can firmly be embedded at and be embedded in groove 1111, and fixed effect is preferable.The elastic force regulation of the return unit 116 is arrived Suitable position, or select suitable spring so that when operating locating part 115, required power is moderate, passes through rotary spacing Part 115, lucky power can make the disengaging of pedal 117 be embedded groove 1111, and pedal 117 can be made to be rotated relative to frame 111, When needing the pedal 117 to fix, the restoring force of return unit 116 can help operator that pedal 117 is embedded into being embedded in groove 1111.

Optionally, being provided with close to the side for being embedded groove 1111 for pedal 117 coordinates be embedded groove 1111 to be embedded portion 1171.

This is embedded portion 1171 and can be fixedly connected with pedal 117, can also be integrally formed.This is embedded portion 1171 relative to stepping on Plate 117 is raised, is easy to be embedded at and is embedded in groove 1111, it is to avoid larger damage is caused to pedal 117 so that pedal 117 makes It is improved significantly with the life-span.

Fig. 4 is refer to, optionally, other in which ladder is the second ladder 13, and the second ladder 13 is slide, and slide is set Have and be provided with hole 1311 of creeping on slide plate 131, slide plate 131.

The double ladder 100 of this structure, can when in use, and operator directly passes through second in the eminence of double ladder 100 Ladder 13 is slided.

Having in the family of child, the ladder of this structure can increase the interest of family, and children can be in slide plate 131 Side by creep hole 1311 exercise creep, can also by the first ladder 11 arrive eminence, then slided from the second ladder 13 Under, can be recreational relatively strong, larger are helped to child grows.

According to a kind of double ladder 100 of the utility model embodiment offer, the job step using double ladder 100 is：

Under normal condition, pedal 117, which is embedded at, to be embedded in groove 1111, and pedal 117 is fixed relative to frame 111.

Step one：Operator is ascended a height by pedal 117, aloft operation；

Step 2：Rotary spacing part 115, departs from pedal 117 and is embedded groove 1111, pedal 117 can turn relative to frame 111 It is dynamic；

Step 3：Rotary spacing part 115, rotates pedal 117, and multiple pedals 117 are in a plane, multiple pedals 117 and frame 111 be collectively forming slidable passage；

Step 4：Operator is slided by the first ladder 11.

Operator can also be ascended a height operation by pedal 117, then be slided by the second ladder 13.

Embodiment 2

The present embodiment also provides a kind of double ladder 100, and the technical scheme that embodiment 1 is described is equally applicable to this implementation Description is not repeated in example, the published technical scheme of embodiment 1.

Refer to Fig. 5, specifically, the present embodiment and the difference of embodiment 1 are, locating part 115 include handle part 1151, Auxiliary section 1155 and the rotation section 1153 being connected with the rotation of frame 111, the connector 113 of auxiliary section 1155 and first are connected, held Portion 1151 and auxiliary section 1155 are located at the both sides of rotation section 1153, and length of the length more than auxiliary section 1155 of handle part 1151 Degree.

There is certain frictional resistance between the pedal 117 and frame 111, according to lever principle, the length of handle part 1151 is big Length in auxiliary section 1155, operator is more laborsaving when pulling locating part 115.

Optionally, the quantity of locating part 115 is two, and two locating parts 115 are located at the close first end of frame 111 respectively At place and remote first end, two handle parts 1151 of two locating parts 115 are connected by connecting rod, connecting rod, the and of frame 111 Two locating parts 115 constitute four-bar mechanism.

It is provided with the remote first end of frame 111 after the locating part 115, operator can operate spacing in the position Part 115, makes pedal 117 be rotated relative to frame 111, when double ladder 100 is placed on the ground, and operator can be close to ground One end by the control pedal 117 of locating part 115, using effect preferably, is easy to operator to use.

According to a kind of double ladder 100 of the utility model embodiment offer, the job step using double ladder 100 is：

Under normal condition, the pedal 117 is in optional position.

Step one：Locating part 115 of the operation away from first end, makes the first ladder 11 be under the second state；

Step 2：Operator is ascended a height operation by pedal 117；

Step 3：Operation makes the first ladder 11 be under first state close to the locating part 115 of first end；

Step 4：Operator is slided by the first ladder 11.

Operator can also be ascended a height operation by pedal 117, then be slided by the second ladder 13.

Embodiment 3

The present embodiment also provides a kind of double ladder 100, and the technical scheme that embodiment 1 or 2 is described is equally applicable to this reality Example is applied, description is not repeated in the published technical scheme of embodiment 1 or 2.

Fig. 6 is refer to, specifically, the present embodiment and the difference of embodiment 1 or 2 are that frame 111 is provided with chute 1113, length direction extension of the chute 1113 along frame 111, the first ladder 11 also includes transport assembly 114, transport assembly 114 Including the second connector 1141, control piece 1143 and sliding part 1145, sliding part 1145 includes slidably being embedded at chute Sliding part in 1113 and the first connecting portion for being connected with tool box 31, control piece 1143 be located at frame 111 close to the End, one end of the second connector 1141 and sliding part 1145 are connected, the other end and control piece of the second connector 1141 1143 connections, control piece 1143 controls sliding part 1145 closer or far from control piece 1143.

Operator often carries instrument in the high-rise working of double ladder 100, the transport assembly 114 that the structure is set up, Before ascending a height, by instrument inserter case 31, the transport assembly 114 effectively can help operator aloft to take work Tool, using effect is preferable, in specific implementation, it is to avoid operator is aloft in order to look for instrument, and influence double ladder 100 is balanced.The knot Structure can effectively ensure that operator's uses safety.

Optionally, second connector 1141 is drawstring or expansion link.By pulling the implementation tool of the second connector 1141 The function that case 31 is moved.

In order that those skilled in the art are clearer to understand the present embodiment, control piece 1143 is carried out specifically below It is bright.

Fig. 7 is refer to, control piece 1143 includes runner 11431 and bull stick 11433, and runner 11431 can turn around the second rotating shaft Dynamic is connected to frame 111, and runner 11431 is provided with turn hole 11435, and turn hole 11435 is close to the edge of runner 11431, turn hole 11435 axis and the axis of the second rotating shaft are arranged side by side, and bull stick 11433 is slidably arranged in turn hole 11435, the second connection One end of part 1141 and sliding part 1145 are connected, the other end winding runner 11431 of the second connector 1141, rotating wheel When 11431, sliding part 1145 is closer or far from runner 11431, and turn hole 11435 is through hole, and control piece 1143 has runner 11431 The third state that can be rotated relative to frame 111, and one end of bull stick 11433 abut frame 111 and runner 11431 is relative The 4th state fixed in frame 111.

Runner 11431 is rotated when needed, realize by tool box 31 at remote the first end of frame 111 to close first Move back and forth between end, the bull stick 11433 can be realized when needing, rotating bull stick 11433 makes 11431 turns of runner It is dynamic, drive the tool box 31 to move, when needing the tool box 31 to be fixed with respect to frame 111, by bull stick 11433 with respect to runner 11431 slide, and one end of the bull stick 11433 is abutted frame 111, by the abutting effect of itself, realize the phase of runner 11431 The effect fixed to frame 111, easy to operate, using effect is preferable.

Optionally, the transport assembly 114 and locating part 115 are located at the same side of the first ladder 11 or are located at the first ladder respectively The both sides of son 11.

According to a kind of double ladder 100 of the utility model embodiment offer, the job step using double ladder 100 is：

Step one：By in instrument inserter case 31；

Step 2：Locating part 115 is operated, pedal 117 is fixed relative to frame 111；

Step 3：Operator is ascended a height by pedal 117；

Step 4：Operator's rotating wheel 11431, makes tool box 31 close to first end, at the desired position, makes bull stick 11433 wear turn hole 11435, and one end of bull stick 11433 abuts frame 111, tool box 31 is fixed relative to frame 111.

Embodiment 4

Fig. 8 is refer to, a kind of multifunctional ladder 200 is present embodiments provided, the multifunctional ladder 200 includes the 3rd ladder 21 and double ladder 100 mentioned above, the two ends of the 3rd ladder 21 are removably connected to the two ends of double ladder 100, the 3rd ladder One end close to the first ladder 11 of son 21 is provided with second connecting portion 210, and the first ladder 11 is provided with cooperation second connecting portion 210 the 3rd connecting portion 110, multifunctional ladder 200 has the 5th shape of the 3rd ladder 21 and the formation triangle of double ladder 100 State, and the length direction setting of the 3rd connecting portion 110 of cooperation of second connecting portion 210 and the 3rd ladder 21 along the first ladder 11 6th state.

The structure of double ladder 100 may be referred to embodiment 1-3, and the multifunctional ladder 200 has the institute of double ladder 100 active Energy.

The structure of 3rd ladder 21 can be common ladder or the first ladder 11 mentioned above or the second ladder Son 13.Under peacetime state, the 3rd ladder 21 can be connected on double ladder 100, and the state of " △ " is presented, when in use, can So that the 3rd ladder 21 is arranged on the first ladder 11, extend the length of the first ladder 11.Second ladder 13 is rotated, and makes the second ladder When length direction of the son 13 along the first ladder 11 extends, the length of the multifunctional ladder 200 is further extended.

First connecting portion and second connecting portion 210 can be the internal thread and external screw thread being equipped with, the He of the first ladder 11 The two ends threaded connection of 3rd ladder 21.

The two ends of the ladder 21 of first ladder 11 and the 3rd can also be clamping.

Specifically, due to having additional the 3rd ladder 21 so that the function of the multifunctional ladder 200 is more diversified, and it sets Meter is reasonable, and mechanism is compact, is hinged by similar and different ladder or detachable connection so that the energy of multifunctional ladder 200 Different environment are enough adapted to, this is simple in construction, and manufacturing cost is low, market application potential is huge, and using effect is preferable.

In summary, the utility model provides a kind of double ladder 100, and the double ladder 100 is real by the first connector 113 Now operate multiple pedals 117 to be rotated simultaneously relative to frame 111 simultaneously, when needing, operate locating part 115, realize many Individual pedal 117 is rotated or fixed relative to frame 111, and its is simple in construction, vdiverse in function, if operator double ladder 100 compared with High position, can realize that common double ladder 100 becomes the ladder that can be slided, operator passes through by operating locating part 115 The ladder rapid decrease, and damage is reduced to greatest extent.The reasonable in design, overall using effect is preferable.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (9)

1. a kind of double ladder, is hinged by two ladders and constituted, it is characterised in that ladder described in wherein at least one is the first ladder Son, first ladder includes frame, the first connector, locating part and multiple pedals, and the pedal can be turned by first rotating shaft Dynamic is connected to the frame, and each pedal is hinged with first connector respectively, and multiple pedals pass through described First connector can be simultaneously relative to the gantry rotation, and the frame has first close to two ladder hinged places End, the locating part is located at the first end, and first ladder has the pedal rotatable relative to the frame First state, and the pedal tilt relative to the length direction of the frame and make the pedal phase by the locating part The second state fixed for the frame；

The locating part includes handle part, auxiliary section and the rotation section being connected with the gantry rotation, the auxiliary section and described First connector is connected, and the handle part and the matching part are in the both sides of the rotation section, and the length of the handle part More than the length of the auxiliary section.

2. double ladder according to claim 1, it is characterised in that the pedal is relatively fixed and edge with the first rotating shaft The axially slidable of the first rotating shaft is connected to the frame, and the frame is provided with for being embedded being embedded for the pedal Groove, the locating part is articulated with the frame, one end of the locating part and first connector connection, the locating part When the other end is rotated, first connector can make the pedal be embedded groove closer or far from described, in the first state Under, it is embedded groove described in the pedal disengaging and the pedal is rotatable relative to the frame, it is in said second condition, described Pedal is embedded at described be embedded in groove and the pedal is fixed relative to the frame.

3. double ladder according to claim 2, it is characterised in that first ladder also includes return unit, the frame Connected with the pedal by the return unit, the return unit makes the pedal that there is the motion for being embedded groove described in become Gesture.

4. double ladder according to claim 2, it is characterised in that the side that groove is embedded described in of the pedal is set There is be embedded groove described in coordinating to be embedded portion.

5. double ladder according to claim 1, it is characterised in that the quantity of the locating part is two, two limits Position part is respectively at the close first end of the frame and at the remote first end, two of two locating parts The handle part is connected by connecting rod, and the connecting rod, the frame and two locating parts constitute four-bar mechanism.

6. double ladder according to claim 1, it is characterised in that the frame is provided with chute, and the chute is described in The length direction extension of frame, first ladder also includes transport assembly, and the transport assembly includes the second connector, control Part and sliding part, the sliding part include the sliding part that is slidably embedded in the chute and for being connected with tool box First connecting portion, the control piece is located at the close first end of the frame, one end of second connector and institute Sliding part connection, the other end of second connector and control piece connection are stated, the control piece controls the sliding part Closer or far from the control piece.

7. double ladder according to claim 6, it is characterised in that the control piece includes runner and bull stick, the runner The frame is rotatablely connected with around the second rotating shaft, the runner is provided with turn hole, and the turn hole is close to the side of the runner The axis of edge, the axis of the turn hole and second rotating shaft is arranged side by side, and the bull stick is slidably arranged in the turn hole, One end of second connector and sliding part connection, runner, rotating wheel described in the other end winding of second connector When, the sliding part is through hole closer or far from the runner, the turn hole, and the control piece has the runner relative The frame is abutted in one end of the third state of the gantry rotation, and the bull stick and the runner is relative to the machine The 4th state that frame is fixed.

8. double ladder according to claim 1, it is characterised in that other in which ladder is the second ladder, described second Ladder is slide, and the slide is provided with slide plate, the slide plate and is provided with hole of creeping.

9. a kind of multifunctional ladder, it is characterised in that including the double ladder described in the 3rd ladder and claim any one of 1-8, The two ends of 3rd ladder are removably connected to the two ends of the double ladder, close first ladder of the 3rd ladder One end of son is provided with second connecting portion, and first ladder is provided with the 3rd connecting portion for coordinating the second connecting portion, institute Stating multifunctional ladder has the 5th state of the 3rd ladder and double ladder formation triangle, and second connection The 6th state that portion coordinates the 3rd connecting portion and length direction of the 3rd ladder along first ladder is set.