CN106639856B - A kind of double ladder and multifunctional ladder - Google Patents

A kind of double ladder and multifunctional ladder Download PDF

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Publication number
CN106639856B
CN106639856B CN201611139881.0A CN201611139881A CN106639856B CN 106639856 B CN106639856 B CN 106639856B CN 201611139881 A CN201611139881 A CN 201611139881A CN 106639856 B CN106639856 B CN 106639856B
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China
Prior art keywords
ladder
rack
pedal
double
connector
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CN201611139881.0A
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CN106639856A (en
Inventor
王斌
曹乃心
吴冬波
朱海春
朱凌
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Zhejiang KangQian industry and Trade Co.,Ltd.
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Yangcheng Institute of Technology
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Priority to CN201611139881.0A priority Critical patent/CN106639856B/en
Publication of CN106639856A publication Critical patent/CN106639856A/en
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/38Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/387Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders having tip-up steps
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/08Special construction of longitudinal members, or rungs or other treads
    • E06C7/082Connections between rungs or treads and longitudinal members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

The present invention provides a kind of double ladder and multifunctional ladders, belong to Multipurpose ladder technical field.The double ladder is hingedly made of two ladders, wherein at least one ladder is the first ladder, first ladder includes rack, the first connector, locating part and multiple pedals, pedal is rotatablely connected with rack 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 there is rack the first end close to two ladder hinged places, locating part to be located at first end.Its is vdiverse in function, and using effect is preferable, and operator is in use, if the higher position in double ladder, can realize that common double ladder becomes the function of slide, person's rapid decrease easy to operation, until the area of safety by operating locating part.The multifunctional ladder includes double ladder mentioned above, the repertoire with double ladder.

Description

A kind of double ladder and multifunctional ladder
Technical field
The present invention relates to Multipurpose ladder technical fields, in particular to a kind of double ladder and multifunctional ladder.
Background technology
Double ladder is also referred to as folding step, because of it in use, preceding for a kind of ascending tool that side space in the plane works Ladder bars and ground afterwards constitute an isosceles triangle, it appears that are known 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 tool 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 utilizes aluminum alloy materials more now;Aluminium alloy herringbone ladder has the characteristics that light, beautiful and durable, and cost is not high, therefore by It is widely used.
Inventor has found that traditional double ladder at least has the following disadvantages under study for action:
It has a single function, using effect is poor;
For worker in operation on double ladder, an emergency situation is encountered, and injury is easy when descending stair.
Invention content
The object of the present invention is to provide a kind of double ladders, improve the deficiencies in the prior art, vdiverse in function, use effect Fruit is preferable, and operator is in use, if the higher position in double ladder, can realize common herringbone by operating locating part Ladder becomes the function of slide, person's rapid decrease easy to operation, until the area of safety, slides that effect is preferable, and whole using effect is preferable.
Another object of the present invention is to provide a kind of multifunctional ladders, can realize multiple ladders while use, Vdiverse in function, reasonable in design, mechanism is compact, by the way that similar and different ladder is hinged or detachable connection so that The multifunctional ladder can adapt to different environment, this is simple in structure, and manufacturing cost is low, and market application potential is huge, uses effect Fruit is preferable.
What the embodiment of the present invention was realized in:
The embodiment provides a kind of double ladders, are hingedly made of two ladders, and wherein at least one ladder is First ladder, the first ladder include that rack, the first connector, locating part and multiple pedals, pedal are rotatable by first rotating shaft Be connected to rack, each pedal is hinged with the first connector respectively, and multiple pedals can be opposite simultaneously by the first connector In gantry rotation, there is rack the first end close to two ladder hinged places, locating part to be located at first end, and the first ladder has Pedal tilts relative to the length direction of rack relative to the rotatable first state of rack and pedal and is made by locating part Pedal is relative to fixed second state of rack.
Specifically, the double ladder is realized by the first connector while operating multiple pedals relative to rack while rotating, When needed, locating part is operated, realizes multiple pedals relative to gantry rotation or fixation, it is simple in structure, it is vdiverse in function, If operator can realize that common double ladder becomes the ladder that can be slided in the higher position of double ladder by operating locating part Son, operator reduce damage to greatest extent by the ladder rapid decrease.This is reasonable in design, whole using effect Preferably.
Optionally, pedal is relatively fixed with first rotating shaft and is connected to rack, machine along the axially slidable of first rotating shaft The slot that is embedded being equipped with for being embedded pedal is set up, locating part is articulated with rack, and one end of locating part is connected with the first connector, limit When the other end rotation of position part, the first connector can make pedal closer or far from slot is embedded, and in the first state, pedal is detached from It is embedded slot and pedal is rotatable relative to rack, in the second condition, pedal, which is embedded at, to be embedded in slot and pedal is relative to rack It is fixed.
Optionally, the first ladder further includes return unit, and rack is connected with pedal by return unit, and return unit enables pedal have Close to the movement tendency for being embedded slot.
Optionally, being provided with close to the side for being embedded slot for pedal coordinates the embedding part for being embedded slot.
Optionally, locating part includes handle part, auxiliary section and the rotation section being connect with gantry rotation, and auxiliary section and first connect Fitting connects, 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 located at the close first end of rack and separate At first end, two handle parts of two locating parts are connected by connecting rod, and connecting rod, rack and two locating parts constitute four bars Mechanism.
Optionally, rack is provided with sliding slot, and sliding slot extends along the length direction of rack, and the first ladder further includes transport group Part, transport assembly include the second connector, control piece and sliding part, and sliding part includes the sliding being slidably embedded in sliding slot Portion and first connecting portion for being connect with tool box, control piece are located at the close first end of rack, and the one of the second connector End is connected with sliding part, and the other end of the second connector is connected with control piece, and control piece controls sliding part closer or far from control Part.
Optionally, control piece includes runner and bull stick, and runner is rotatablely connected with rack, runner setting around the second shaft 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 shaft is arranged side by side, and bull stick is slidably worn It is connected with sliding part in one end of turn hole, the second connector, the other end winding runner of the second connector, it is sliding when rotating wheel For moving part closer or far from runner, turn hole is through-hole, control piece have runner can relative to the third state of gantry rotation, and One end of bull stick abuts rack and runner is relative to fixed 4th state of rack.
Optionally, other in which ladder is the second ladder, and the second ladder is slide, and slide is provided with slide plate, on slide plate It is provided with hole of creeping.
The embodiments of the present invention also provide a kind of multifunctional ladders comprising third ladder and herringbone mentioned above Ladder, the both ends of third ladder are removably connected to the both ends of double ladder, and third ladder is arranged close to one end of the first ladder There are second connecting portion, the first ladder to be provided with the third interconnecting piece of cooperation second connecting portion, multifunctional ladder has third ladder The 5th state of triangle is formed with double ladder and second connecting portion coordinates third interconnecting piece and third ladder is along the first ladder Length direction setting the 6th state.
Specifically, the multifunctional ladder includes double ladder mentioned above, the repertoire with the double ladder, and by In having additional third ladder so that the function of the multifunctional ladder is more diversified, and reasonable design, 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 advantageous effect of the embodiment of the present invention is:
In conclusion the double ladder is realized by the first connector while operating multiple pedals relative to rack while turning It is dynamic, when needed, locating part is operated, realizes multiple pedals relative to gantry rotation or fixation, simple in structure, function is more Sample, if operator can realize that common double ladder becomes to slide in the higher position of double ladder by operating locating part Ladder, operator by the ladder rapid decrease, and to greatest extent reduce damage.This is reasonable in design, whole to use Effect is preferable.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic diagram under the second state of the double ladder that the embodiment of the present invention 1 provides;
Fig. 2 is the schematic diagram under the first state of double ladder shown in FIG. 1;
Fig. 3 is the schematic diagram for being embedded slot of double ladder shown in FIG. 1;
Fig. 4 is the schematic diagram of the second ladder of double ladder shown in FIG. 1;
Fig. 5 is the schematic diagram for the locating part that the embodiment of the present invention 2 provides;
Fig. 6 is the schematic diagram of the transport assembly for the double ladder that the embodiment of the present invention 3 provides;
Fig. 7 is the partial enlarged view at the VII of double ladder shown in fig. 6;
Fig. 8 is the schematic diagram for the multifunctional ladder that the embodiment of the present invention 4 provides.
Icon:200- multifunctional ladders;100- double ladders;The first ladders of 11-;The second ladders of 13-;21- third ladders; 111- racks;The first connectors of 113-;114- transport assemblies;115- locating parts;116- return units;117- pedals;119- first Shaft;1111- is embedded slot;1113- sliding slots;1171- embedding parts;1151- handle parts;The rotation sections 1153-;The auxiliary sections 1155-; The second connectors of 1141-;1143- control pieces;1145- sliding parts;11431- runners;11433- bull sticks;11435- turn holes;210- Second connecting portion;110- third interconnecting pieces;131- slide plates;1311- creeps hole;The tool boxes 31-.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects It encloses.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term "upper", "lower", "inner", "outside" Set relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put Relationship is set, is merely for convenience of description of the present invention and simplification of the description, device is not indicated or implied the indicated or element is necessary With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect It connects;It can be mechanical connection, can also be electrical connection;It can be directly connected, can also indirectly connected through an intermediary, it can To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition Concrete meaning in the present invention.
Embodiment 1
Referring to FIG. 1, present embodiments providing a kind of double ladder 100, hingedly it is made of two ladders.
Two hinged ladders 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.
It please refers to Fig.1 with 2, specifically, the wherein at least one ladder of the double ladder 100 is the first ladder 11, the first ladder Son 11 can by first rotating shaft 119 including rack 111, the first connector 113, locating part 115 and multiple pedals 117, pedal 117 Rotation is connected to rack 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 rack 111 simultaneously, and rack 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 111 rotatable first state of rack and pedal 117 relative to rack 111 length direction tilt and make pedal 117 relative to rack 111 fixed second by locating part 115 State.
The double ladder 100 is realized by the first connector 113 while operating multiple pedals 117 relative to rack 111 simultaneously Rotation operates locating part 115 when needed, realizes that multiple pedals 117 are rotated or fixed, structure relative to rack 111 Simply, vdiverse in function, if operator can realize ordinary people in the higher position of double ladder 100 by operating locating part 115 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.This is reasonable in design, and whole using effect is preferable.
Referring to FIG. 3, optional, pedal 117 is relatively fixed with first rotating shaft 119 and can along the axial direction of first rotating shaft 119 Sliding is connected to rack 111, and rack 111 is provided with is embedded slot 1111 for be embedded pedal 117, and locating part 115 is articulated with Rack 111, one end of locating part 115 and the connection of the first connector 113, when the other end of locating part 115 rotates, the first connector 113 can make pedal 117 closer or far from slot 1111 is embedded, and in the first state, the disengaging of pedal 117 is embedded slot 1111 and pedal 117 is rotatable relative to rack 111, in the second condition, pedal 117 be embedded at be embedded in slot 1111 and pedal 117 relative to Rack 111 is fixed.
Specifically, the pedal 117 can be fixedly connected with first rotating shaft 119, can also be integrally formed.Pass through pedal 117 Itself clamping is embedded slot 1111, and fixed effect is preferable, and pedal 117 cannot be rotated relative to rack 111, and the person of being conveniently operated is ascending a height During, it is not easy to it slips.When rotary spacing part 115, according to lever principle, it can realize that the driving of the first connector 113 is stepped on For plate 117 closer or far from slot 1111 is embedded, using effect is preferable.
The locating part 115 is hinged by flexural pivot and rack 111, can be with when which rotates around first rotating shaft 119 It realizes multiple pedals 117 while rotating.When the locating part 115 is along the length direction rotation of first rotating shaft 119, pass through the first connection The pulling function of part 113, the pedal 117 are moved along the width direction of rack 111, and the disengaging of pedal 117 is made to be embedded slot 1111 or embedding Set on being embedded in slot 1111.
Herein, the pedal 117 and first rotating shaft 119 jointly relative to rack 111 slidably, can also be that this first Shaft 119 is fixedly connected with rack 111, which 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 further includes return unit 116, and rack 111 and pedal 117 are connected by return unit 116, multiple Position part 116 enables pedal 117 have close to the movement tendency for being embedded slot 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 slot 1111, and fixed effect is preferable.The elastic force adjusting of the return unit 116 is arrived Suitable position, or the suitable spring of selection 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 slot 1111, and pedal 117 can be made to be rotated relative to rack 111, When pedal 117 being needed to fix, the restoring force of return unit 116 can help operator that pedal 117 is embedded into being embedded in slot 1111.
Optionally, being provided with close to the side for being embedded slot 1111 for pedal 117 coordinates the embedding part 1171 for being embedded slot 1111.
The embedding part 1171 can be fixedly connected with pedal 117, can also be integrally formed.The embedding part 1171 is relative to stepping on 117 protrusion of plate, is embedded in slot 1111 convenient for being embedded at, avoids causing pedal 117 larger damage so that pedal 117 makes It is improved significantly with the service life.
Referring to FIG. 4, optional, other in which ladder is the second ladder 13, and the second ladder 13 is slide, slide setting There is slide plate 131, hole 1311 of creeping is provided on 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 slides.
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 practice creep, can also by the first ladder 11 arrive eminence, then from the second ladder 13 slide Under, it can be recreational relatively strong, child grows are helped larger.
A kind of double ladder 100 provided according to embodiments of the present invention, the work step using double ladder 100 are:
Under normal condition, pedal 117, which is embedded at, to be embedded in slot 1111, and pedal 117 is fixed relative to rack 111.
Step 1:Operator is ascended a height by pedal 117, aloft operation;
Step 2:Rotary spacing part 115 makes the disengaging of pedal 117 be embedded slot 1111, and pedal 117 can turn relative to rack 111 It is dynamic;
Step 3:Rotary spacing part 115 makes pedal 117 rotate, and multiple pedals 117 are in a plane, multiple pedals 117 and rack 111 slidable channel is collectively formed;
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 solution that embodiment 1 describes is equally applicable to this implementation Example, 1 published technical solution of embodiment are not repeated to describe.
Referring to FIG. 5, specifically, the present embodiment and embodiment 1 difference lies in, locating part 115 include handle part 1151, Auxiliary section 1155 and the rotation section 1153 being rotatablely connected with rack 111, auxiliary section 1155 and the connection of the first connector 113, hold Portion 1151 and auxiliary section 1155 are located at the both sides of rotation section 1153, and the length of handle part 1151 is more than the length of auxiliary section 1155 Degree.
There are certain frictional resistances between the pedal 117 and rack 111, and according to lever principle, the length of handle part 1151 is big Length in auxiliary section 1155, operator are 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 rack 111 At place and separate first end, two handle parts 1151 of two locating parts 115 are connected by connecting rod, connecting rod, 111 and of rack Two locating parts 115 constitute four-bar mechanism.
After being provided with the locating part 115 at the separate first end of rack 111, operator can operate limit in the position Part 115 makes pedal 117 be rotated relative to rack 111, and when double ladder 100 is placed on the ground, operator can be close to ground One end by 115 control pedal 117 of locating part, using effect is preferable, and person easy to operation uses.
A kind of double ladder 100 provided according to embodiments of the present invention, the work step using double ladder 100 are:
Under normal condition, which is in any position.
Step 1:Locating part 115 of the operation far 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 solution that embodiment 1 or 2 describes is equally applicable to this reality Example is applied, the published technical solution of embodiment 1 or 2 is not repeated to describe.
Referring to FIG. 6, specifically, the present embodiment is with embodiment 1 or 2, difference lies in rack 111 is provided with sliding slot 1113, sliding slot 1113 extends along the length direction of rack 111, and the first ladder 11 further 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 sliding slot Sliding part in 1113 and the first connecting portion for being connect with tool box 31, control piece 1143 be located at rack 111 close to the At one end, one end of the second connector 1141 and sliding part 1145 connect, the other end and control piece of the second connector 1141 1143 connections, control piece 1143 control sliding part 1145 closer or far from control piece 1143.
Operator often carries tool in the high-rise working of double ladder 100, the transport assembly 114 which adds, Before ascending a height, by tool inserter case 31, which effectively can help operator aloft to take work Tool, using effect is preferable, in specific implementation, operator is avoided aloft in order to look for tool, to influence the balance of double ladder 100.The knot Structure can effectively ensure that operator's is safe to use.
Optionally, which is drawstring or telescopic rod.By pulling 1141 implementation tool of the second connector The function that case 31 moves.
In order to make those skilled in the art are clearer to understand the present embodiment, control piece 1143 is carried out specifically below It is bright.
Referring to FIG. 7, control piece 1143 includes runner 11431 and bull stick 11433, runner 11431 can turn around the second shaft Dynamic is connected to rack 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 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 connect, the other end winding runner 11431 of the second connector 1141, rotating wheel When 11431, for sliding part 1145 closer or far from runner 11431, turn hole 11435 is through-hole, and control piece 1143 has runner 11431 Rack 111 can be abutted relative to the one end for the third state and bull stick 11433 that rack 111 rotates and runner 11431 is opposite In 111 fixed 4th state of rack.
Runner 11431 rotates when needed, and realization is by tool box 31 to close to first from the separate first end of rack 111 Move back and forth between end, which may be implemented when needed, and rotation 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 rack 111, by bull stick 11433 with respect to runner 11431 slidings make one end of the bull stick 11433 abut rack 111 and realize 11431 phase of runner by the abutting effect of itself To 111 fixed effect of rack, 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 The both sides of son 11.
A kind of double ladder 100 provided according to embodiments of the present invention, the work step using double ladder 100 are:
Step 1:It will be in tool inserter case 31;
Step 2:Locating part 115 is operated, pedal 117 is made to be fixed relative to rack 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 rack 111, and tool box 31 is made to be fixed relative to rack 111.
Embodiment 4
Referring to FIG. 8, present embodiments providing a kind of multifunctional ladder 200, which includes third ladder 21 and double ladder 100 mentioned above, the both ends of third ladder 21 are removably connected to the both ends of double ladder 100, third ladder Son 21 is provided with second connecting portion 210 close to one end of the first ladder 11, and the first ladder 11 is provided with cooperation second connecting portion There is third ladder 21 and double ladder 100 to form the 5th shape of triangle for 210 third interconnecting piece 110, multifunctional ladder 200 What state and the cooperation third of second connecting portion 210 interconnecting piece 110 and third ladder 21 were arranged along the length direction of the first ladder 11 6th state.
The structure of double ladder 100 can have the institute of double ladder 100 active with reference implementation example 1-3, the multifunctional ladder 200 Energy.
The structure of third ladder 21 can be common ladder, can also be the first ladder 11 or the second ladder mentioned above Son 13.Under peacetime state, third ladder 21 can be connected on double ladder 100, and the state that " △ " is presented when in use can Third ladder 21 to be mounted on the first ladder 11, extend the length of the first ladder 11.Second ladder 13 rotates, and makes the second ladder When son 13 extends along the length direction of the first ladder 11, 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, 11 He of the first ladder The both ends of third ladder 21 are threadedly coupled.
The both ends of first ladder 11 and third ladder 21 can also be clamping.
Specifically, due to having additional third ladder 21 so that the function of the multifunctional ladder 200 is more diversified, sets Meter is reasonable, and mechanism is compact, by the way that similar and different ladder is hinged or detachable connection so that 200 energy of multifunctional ladder Different environment is enough adapted to, this is simple in structure, and manufacturing cost is low, and market application potential is huge, and using effect is preferable.
In conclusion the present invention provides a kind of double ladder 100, which is realized together by the first connector 113 When operate multiple pedals 117 relative to rack 111 while rotating, when needed, operate locating part 115, realize and multiple steps on Plate 117 is rotated or is fixed relative to rack 111, simple in structure, vdiverse in function, if operator is in the high bit of double ladder 100 It sets, can realize that common double ladder 100 becomes the ladder that can be slided by operating locating part 115, operator passes through the ladder Sub- rapid decrease, and damage is reduced to greatest extent.This is reasonable in design, and whole using effect is preferable.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (9)

1. a kind of double ladder is hingedly made of two ladders, which is characterized in that ladder described in wherein at least one is the first ladder Son, first ladder include rack, the first connector, locating part and multiple pedals, and the pedal can be turned by first rotating shaft Dynamic is connected to the rack, 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 rack has first close to two ladder hinged places End, the locating part are located at the first end, and first ladder has the pedal rotatable relative to the rack First state and the pedal tilt relative to the length direction of the rack and make the pedal phase by the locating part For fixed second state of the rack;
The pedal is relatively fixed with the first rotating shaft and is connected to the machine along the axially slidable of the first rotating shaft Frame, the rack are provided with the slot that is embedded for being embedded the pedal, and the locating part is articulated with the rack, the locating part One end connected with first connector, when the rotation of the other end of the locating part, first connector can make described Pedal is embedded slot closer or far from described, in said first condition, slot and the pedal phase is embedded described in the pedal disengaging Rotatable for the rack, in said second condition, the pedal is embedded at described be embedded in slot and the pedal is opposite It is fixed in the rack.
2. double ladder according to claim 1, which is characterized in that first ladder further includes return unit, the rack It is connected by the return unit with the pedal, the return unit enables the pedal that there is the movement for being embedded slot described in become Gesture.
3. double ladder according to claim 1, which is characterized in that the pedal is arranged close to the side for being embedded slot There is the embedding part that slot is embedded described in cooperation.
4. according to claim 1-3 any one of them double ladders, which is characterized in that the locating part includes handle part, cooperation Portion and the rotation section being connect with the gantry rotation, the auxiliary section are connected with first connector, the handle part and institute Matching part is stated in the both sides of the rotation section, and the length of the handle part is more than the length of the auxiliary section.
5. double ladder according to claim 4, which is characterized in that the quantity of the locating part is two, two limits Position part is located at the close first end of the rack and at the separate first end, two of two locating parts The handle part is connected by connecting rod, and the connecting rod, the rack and two locating parts constitute four-bar mechanism.
6. double ladder according to claim 1, which is characterized in that the rack is provided with sliding slot, and the sliding slot is described in The length direction of rack extends, and first ladder further includes transport assembly, and the transport assembly includes the second connector, control Part and sliding part, the sliding part include the sliding part being slidably embedded in the sliding slot and for being connect with tool box First connecting portion, the control piece are located at the close first end of the rack, one end of second connector and institute Sliding part connection is stated, the other end of second connector is connected with the control piece, and the control piece controls the sliding part Closer or far from the control piece.
7. double ladder according to claim 6, which is characterized in that the control piece includes runner and bull stick, the runner It is rotatablely connected with the rack around the second 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 shaft is arranged side by side, and the bull stick is slidably arranged in the turn hole, One end of second connector is connected with sliding part, runner described in the other end winding of second connector, rotating wheel When, for the sliding part closer or far from the runner, the turn hole is through-hole, and the control piece has the runner can be opposite In the third state of the gantry rotation and one end of the bull stick abuts the rack and the runner is relative to the machine Fixed 4th state of frame.
8. double ladder according to claim 1, which is characterized in that other in which ladder be the second ladder, described second Ladder is slide, and the slide is provided with slide plate, and hole of creeping is provided on the slide plate.
9. a kind of multifunctional ladder, which is characterized in that including third ladder and claim 1-8 any one of them double ladders, The both ends of the third ladder are removably connected to the both ends of the double ladder, close first ladder of the third ladder One end of son is provided with second connecting portion, and first ladder is provided with the third interconnecting piece for coordinating the second connecting portion, institute It states multifunctional ladder and forms the 5th state of triangle and second connection with the third ladder and the double ladder The 6th state that portion coordinates the third interconnecting piece and the third ladder is arranged along the length direction of first ladder.
CN201611139881.0A 2016-12-12 2016-12-12 A kind of double ladder and multifunctional ladder Active CN106639856B (en)

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Application Number Priority Date Filing Date Title
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CN106639856B true CN106639856B (en) 2018-09-28

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107939274A (en) * 2017-12-27 2018-04-20 江苏苏云医疗器材有限公司 Convert ladder
CN109335751A (en) * 2018-10-09 2019-02-15 董方舟 Ladder device is pedaled in a kind of folding of logistics transportation truck
CN109538108A (en) * 2019-01-04 2019-03-29 汪志勇 A kind of adjustable ladder of pedal angle
CN111705661A (en) * 2020-05-12 2020-09-25 中交一公局第四工程有限公司 Bridging device with anchoring function
CN113802975A (en) * 2021-10-25 2021-12-17 东莞长谷川金属制品有限公司 Pedal system and ladder
CN114232453A (en) * 2022-01-04 2022-03-25 晟民建设有限公司 Overlap joint bridge that municipal works were used

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