CN209483199U

CN209483199U - A kind of movable type step ladder

Info

Publication number: CN209483199U
Application number: CN201821680950.3U
Authority: CN
Inventors: 吴功辉
Original assignee: Wuhan Haiteng Steel Structure Engineering Co Ltd
Current assignee: Wuhan Haiteng Steel Structure Engineering Co Ltd
Priority date: 2018-10-16
Filing date: 2018-10-16
Publication date: 2019-10-11
Anticipated expiration: 2028-10-16

Abstract

The utility model relates to a kind of mobile step ladders, including platform, body frame, side frame and ladder, the platform is fixed on the top of the body frame, the top of the side frame is connect with the platform, the bottom end of the body frame and side frame is mounted on universal wheel, the body frame includes four length-adjustable pillars, and the side frame includes two telescopic side levers, and the top of two side levers is hinged with the opposite end of platform side respectively；The ladder includes several stepped plates being fixedly mounted between two side levers, and there are several for installing the mounting portions of stepped plate on the side lever.The utility model has the effect of facilitating adjusting height to be suitable for a variety of high environmentals, versatile.

Description

A kind of movable type step ladder

Technical field

The utility model relates to step ladder technical fields, more particularly, to a kind of mobile step ladder.

Background technique

Step ladder, nickname ladder truck, staircase of ascending a height are a kind of equipment that help staff climbs up certain altitude, extensively Applied to warehouse logistics management domain.It at top is hingedly in V-shaped structure that traditional step ladder, which is usually all two ladders, is being used When, according to the angle for highly needing to adjust between two ladders, staff climb from one of ladder again, in order to make to step on High ladder stablizes the personal safety for guaranteeing staff, must also an at least people helped on ground in face of step ladder.It is this traditional Step ladder needs more people to be used cooperatively, waste of manpower.

The patent that one notification number is CN205206726U discloses a kind of packaged type step ladder, frame assembly by with Stringer made of rectangular steel tube blanking, vertical beam, crossbeam and the groups such as guardrail pillar, guardrail made of steel pipe blanking are welded.Bone Riveting has mask on frame assembly, and carpet is equipped in mask and is fixed by press strip.The lower plane of frame assembly is respectively welded two Part castor and two pieces universal caster wheel.

Packaged type step ladder in above-mentioned technical proposal has preferable structural stability, can be singly used, climbing square Just.But this mobile step ladder usually highly immobilizes, and can only be used cooperatively with the equipment or rack of a certain height, it is difficult To be suitable for the use environment of a variety of requirement for height, versatility is bad.

Utility model content

The purpose of the utility model is to provide a kind of mobile step ladder, has and facilitate adjusting height a variety of high to be suitable for Spend environment, versatile effect.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of movable type step ladder, including platform, body frame, side frame and ladder, the platform are fixed on the top of the body frame End, the top of the side frame are connect with the platform, and the bottom end of the body frame and side frame is mounted on universal wheel, the body frame packet Include four length-adjustable pillars, the side frame includes two telescopic side levers, the top of two side levers respectively with platform one The opposite end of side is hinged；The ladder includes several stepped plates being fixedly mounted between two side levers, is stayed on the side lever Have several for installing the mounting portion of stepped plate.

By using above-mentioned technical proposal, body frame is made of four length-adjustable pillars, then can be by adjusting Zhi Zhuchang Degree changes the height of platform to adjust the length of body frame；It, can also be as needed to two while changing strut height Side lever stretches, and is always maintained at the top of two side levers hinged with platform, and the bottom end of two side levers can be steady Surely contact to earth, so that staff be allow smoothly to climb up the ladder being mounted on two side levers, and then in-track platform to equipment into Cargo row observation or transported goods on frame；Ladder is fixed on the stepped plate structure on two side levers by several by mounting portion At can increase and decrease the quantity of stepped plate according to the length of two side levers, make ladder can then when stretching to two side levers So that staff normally ascends a height, the length adjustment of two side levers is not interfered yet.Step ladder height adjustment is convenient to be suitable for A variety of high environmentals, it is versatile.

Further preferably are as follows: the pillar includes several struts in vertical direction clamping, and the bottom end of the strut is set There is grafting item, grafting item is equipped with external screw thread, and the top of the strut is equipped with the threaded hole with the external screw thread cooperation on grafting item.

By using above-mentioned technical proposal, pillar is constituted by several in the strut that vertical direction is clamped, two to connect piece Strut is achieved a fixed connection by the effect that is threadedly engaged between grafting item and threaded hole, and the assembly and disassembly of pillar is more convenient, It carries out also having preferable structural strength when supporting role, is not easy loose.

Further preferably are as follows: four end of bottom of the platform is respectively equipped with a connecting column, and four connecting columns are fitted into respectively It is inserted into the threaded hole on four struts of top.

By using above-mentioned technical proposal, the bottom of platform passes through four connecting columns spiral shell with four struts of top respectively Pit carries out grafting, dismounts more convenient between platform and pillar, and pillar also has preferable supporting role to platform.

Further preferably are as follows: the connecting column is equipped with the fastening bolt of institute's connecting column and the fixed locking of strut.

By using above-mentioned technical proposal, fastening bolt is set, fastening bolt carries out connecting column and strut on connecting column Fixed locking, can prevent connecting column from falling off from the threaded hole on top strut, to reinforce between platform and pillar Be connected firmly degree, and overall structure is more stable, and safety is higher.

Further preferably are as follows: the junction of adjacent two struts is arranged with connecting bushing on same pillar, on four pillars It is connected two-by-two by connecting rod between highly equal connecting bushing.

By using above-mentioned technical proposal, connecting bushing, connection is arranged in the junction of adjacent two struts on same pillar Axle sleeve can reinforce the bonding strength between strut, make to be less susceptible to be detached between strut；The equal connection of height on four pillars It is connected two-by-two between axle sleeve by connecting rod, then can improve the connection integrity between four pillars by connecting rod, facilitate Reinforce the overall structural strength between four pillars, bearing strength is higher.

Further preferably are as follows: the both ends of the connecting rod are equipped with hook, and the lateral circle surface of the axle sleeve, which is equipped with, supplies the extension The lantern ring that rhampotheca is hung.

By using above-mentioned technical proposal, hook is arranged in the both ends of connecting rod, and setting is for linking up with hanging sleeve on the lateral circle surface of axle sleeve Lantern ring, then for connecting rod by installing the hook hanging sleeve at both ends into realizing in lantern ring, connecting rod is convenient for disassembly and assembly, does not have to step in long-time Pillar and connecting rod can be split when high ladder, save parking space.

Further preferably are as follows: the side lever includes several loop bars being successively socketed, and the mounting portion is on loop bar along length The uniformly distributed several mounting grooves in direction are spent, the both ends of the stepped plate are respectively fixed with the installation in the chimeric insertion mounting groove Item.

By using above-mentioned technical proposal, side lever is socketed to form by several loop bars, by stretching the loop bar of socket The length of the i.e. changeable side lever of contracting；Mounting portion be several mounting grooves uniformly distributed along its length on loop bar, stepped plate pass through by The mounting bar at both ends is fitted into respectively in insertion mounting groove, and the fixed installation between stepped plate and two side levers can be realized；Pass through By the mounting groove alignment of adjacent two loop bar socket places and the mounting bar of ladder board ends is inserted into mounting groove, phase can be realized Being fixedly connected for adjacent two loop bars, will not automatic sliding between loop bar.

Further preferably are as follows: the mounting groove is the horizontal circular hole for running through loop bar, and the mounting bar is in agree with mounting groove It is cylindric, the free end of the mounting bar stretches out the mounting groove and is simultaneously equipped with hexagonal limit hole, and the hexagonal limit hole is along institute The axially extending of mounting bar is stated, the loop bar is limited on the loop bar equipped with one end, the chimeric insertion hexagonal of the other end Gag lever post in limit hole, there are the grooves for accommodating gag lever post in each loop bar.

By using above-mentioned technical proposal, mounting bar is cylindrical, and accordingly with mounting bar, mounting groove is and mounting bar contract The circular hole of conjunction can be rotatablely installed item then when adjusting the inclination angle between side lever and ground to adjust the inclination angle of stepped plate and incite somebody to action Mounting bar is limited in gag lever post insertion hexagonal limit hole, prevents mounting bar from rotating automatically, to make stepped plate always It is parallel to the ground, facilitate staff to climb.

Further preferably are as follows: the gag lever post is L-shaped, and one end of gag lever post is hingedly mounted on the loop bar away from stepped plate Side on, in the chimeric insertion hexagonal limit hole of the other end of gag lever post.

By using above-mentioned technical proposal, gag lever post is L-shaped and one end is hingedly mounted on the side that loop bar deviates from stepped plate On, then at the inclination angle for needing to adjust stepped plate, gag lever post is turned to and is detached from hexagonal limit hole, to which stepped plate is turned to conjunction When suitable inclination angle, then gag lever post is turned in insertion hexagonal limit hole again, realizes the fixation of stepped plate, adjust stepped plate inclination angle It is more convenient.

Further preferably are as follows: four struts of the body frame bottom are fixed with close to ground one end to be added in the structure of box shape Strong frame, the universal wheel are fixedly mounted on the end of structural strengthening frame.

By using above-mentioned technical proposal, four struts of body frame bottom are fixed with the knot in box shape close to ground one end Structure hog frame, structural strengthening frame can play good booster action for four struts of body frame bottom, make body frame bottom four Between strut combine it is stronger, body frame is less susceptible to fall apart.

In conclusion the utility model has the following beneficial effects:

1. the adjustable and side frame of body frame height is made of two telescopic side levers, ladder is that several are installed by mounting portion Stepped plate between two side levers can adjust body frame and side frame then when use environment changes according to actual needs Highly, it climbs so that staff be allow to pass through the ladder on side frame to platform, versatility is more preferable；

2. side lever is successively socketed to form by several loop bars, and mounting portion is to be in along uniformly distributed several of loop bar length direction The mounting groove of circular hole, the cylindric mounting bar of ladder board ends can be rotated when the inclination angle on side lever and ground changes Mounting bar keeps stepped plate parallel to the ground and keeps relatively fixed between stepped plate and loop bar by gag lever post, facilitates work people Member's climbing.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the present embodiment；

Fig. 2 is the fractionation structural representation of pillar in Fig. 1；

Fig. 3 is the structural schematic diagram of platform and ladder in Fig. 1；

Fig. 4 is the enlarged structure schematic diagram of a-quadrant in Fig. 3.

In figure, 1, platform；11, connecting column；12, fastening bolt；13, fence；2, body frame；21, pillar；211, strut； 212, grafting item；213, threaded hole；22, connecting bushing；221, lantern ring；23, connecting rod；231, it hooks；3, side frame；31, side lever； 311, loop bar；312, mounting groove；313, gag lever post；314, groove；4, ladder；41, stepped plate；42, mounting bar；421, hexagonal limits Position hole；5, universal wheel；6, structural strengthening frame.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Referring to Fig.1, it is a kind of mobile step ladder disclosed by the utility model, including platform 1, body frame 2, side frame 3 and climbs Ladder 4.Platform 1 is fixedly mounted on the top of body frame 2, and side frame 3 is tiltedly mounted on the side of body frame 2, the top of side frame 3 and platform 1 One side edge is hinged, other side periphery edge of platform 1 are fixed with fence 13, and the bottom end of side frame 3 and the bottom end of body frame 2 are mounted on Universal wheel 5.

As depicted in figs. 1 and 2, body frame 2 is made of four pillars 21, and four pillars 21 are by several in vertical direction card (the present embodiment can be used two or more than three by taking three struts 211 as an example to the composition of strut 211 connect in other embodiments Strut 211).The bottom end of strut 211 is provided with external screw thread, the top of strut 211 on grafting item 212 integrally formed with grafting item 212 End offers the threaded hole 213 being threadedly engaged with the grafting item 212 of a upper strut 211.Three struts on same pillar 21 211 are fixedly connected by the effect that is threadedly engaged between grafting item 212 and threaded hole 213.

Connecting bushing 22 is nested on same pillar 21 outside the junction of adjacent two struts 211, strut 211 is close to top The position at end is equipped with the annular bar for support axle sleeve.Lantern ring 221 there are three being fixedly welded on the lateral circle surface of connecting bushing 22, three A lantern ring 221 is distributed on 90 degree of lateral circle surfaces of connecting bushing 22.On four pillars 21 between the identical connecting bushing 22 of height Connecting rod 23 is hung with by 221 sets of lantern ring, the both ends of connecting rod 23 are bent to the same side, form the hook for hitching lantern ring 221 231, four pillars 21 are connected two-by-two by connecting rod 23.In order to allow the connecting bushing 22 in diagonal position to pass through connecting rod 23 It is attached, there are two types of the settings of connecting bushing 22, and the intermediate collar 221 in three lantern rings 221 on two kinds of connecting bushings 22 is high Degree is different.Contour and on diagonal line 211 junction of strut uses one of connecting bushing 22, correspondingly, etc. High and 211 junction of strut on another diagonal line is using another connecting bushing 22, two on such diagonal line Connecting rod 23 can be installed in a staggered manner when staggeredly.

In order to keep the globality of four pillars 21 more preferable, it is fixed between the strut 211 of four 21 bottoms of pillar in box The structural strengthening frame 6 of shape, the universal wheel 5 of 2 bottom end of body frame be respectively and fixedly installed to four of 6 four end of structural strengthening frame it is universal Wheel 5.

Four pillars 21 are threadedly coupled by three struts 211 and are fixed, and the junction set between two struts 211 that are connected If connecting bushing 22, it is attached again by connecting rod 23 between contour connecting bushing 22, makes the structural strength of four pillars 21 Higher, globality is more preferable.

As shown in figures 1 and 3, platform 1 is one piece of square plate, and four pillars 21 are located at four ends of square plate.Platform 1 The bottom end of bottom is fixed with vertical connecting column 11, and four connecting columns 11 are fitted into respectively on insertion four struts 211 of top In threaded hole 213, fastening bolt 12 is mounted on four struts 211 of top, fastening bolt 12 passes through the side of threaded hole 213 Wall and connecting column 11 are kept fixed connecting column 11 and the strut 211 at 21 top of pillar.Platform 1 passes through connecting column 11 and four branch Column 21 is fixedly connected, and platform 1 can be disassembled from four pillars 21, and the dismounting of platform 1 is more convenient.

As shown in Figure 3 and Figure 4, side frame 3 includes two side levers 31 and the ladder 4 being mounted between two side levers 31.Two Side lever 31 is successively socketed to form by several loop bars 311 (the present embodiment by taking three loop bars 311 as an example, in other embodiments Two loop bars 311 can be used or more than three loop bars 311).The universal wheel 5 of 3 bottom end of side frame is to be separately mounted to two side levers Two universal wheels 5 on the loop bar 311 of 31 bottoms.Several mounting portions are evenly arranged on loop bar 311 along its length, are installed Portion is the mounting groove 312 of circular hole, and mounting groove 312 is horizontal to run through loop bar 311.The both ends of stepped plate 41 are respectively fixed with cylindric Mounting bar 42, in the chimeric insertion mounting hole of mounting bar 42.Mounting groove 312 is stretched out to loop bar 311 in the free end of mounting bar 42 Outside simultaneously axially offers hexagonal limit hole 421 along mounting bar 42, and loop bar 311 is equipped with L-shaped away from the side of stepped plate 41 Gag lever post 313, one end of gag lever post 313 is hinged on loop bar 311, and the other end is in hexagonal configuration and chimeric insertion hexagonal limit In hole 421.There are the grooves 314 for accommodating gag lever post 313 in each loop bar 311, to ensure when shrinking side lever 31, Gag lever post 313 will not hinder the intussusception between loop bar 311.

In order to make side lever 31, loop bar 311 is not shunk automatically in use, 311 upper end of loop bar being mutually socketed Mounting groove 312 is aligned and is equipped with stepped plate 41, and the mounting bar 42 of stepped plate 41 is inserted into the mounting groove 312 of 311 socket place of loop bar It is interior, it can make to be kept fixed between loop bar 311, structure is more stable.

When adjusting the inclination angle between side lever 31 and ground, item 42 can be rotatablely installed to adjust the inclination angle of stepped plate 41 simultaneously Gag lever post 313 is inserted into hexagonal limit hole 421, mounting bar 42 is limited, prevents mounting bar 42 from rotating automatically, thus Keep stepped plate 41 parallel to the ground always, staff is facilitated to climb.

The implementation principle of the present embodiment are as follows: body frame 2 is made of the pillar 21 for being mounted on 1 bottom of platform, four end, and pillar 21 The strut 211 being threadedly coupled by three assembles, and it is highly convenient to adjust body frame 2；Side frame 3 is by two telescopic 31 structures of side lever At ladder 4 is mounted on the stepped plate 41 between two side levers 31 by mounting portion for several, then when use environment changes When, 3 height of body frame 2 and side frame can be adjusted according to actual needs, so that staff be allow to pass through climbing on side frame 3 In 4 climbing to platform 1 of ladder, versatility is more preferable.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of movable type step ladder, including platform (1), body frame (2), side frame (3) and ladder (4), the platform (1) are fixed on The top on the top of the body frame (2), the side frame (3) is connect with the platform (1), the bottom of the body frame (2) and side frame (3) End is mounted on universal wheel (5), it is characterised in that: the body frame (2) includes four length-adjustable pillars (21), the side frame It (3) include two telescopic side levers (31), the top of two side levers (31) is cut with scissors with the opposite end of platform (1) side respectively It connects；The ladder (4) includes several stepped plates (41) being fixedly mounted between two side levers (31), is stayed on the side lever (31) Have several for installing the mounting portion of stepped plate (41).

2. a kind of mobile step ladder according to claim 1, it is characterised in that: the pillar (21) include several The bottom end of the strut (211) of vertical direction clamping, the strut (211) is equipped with grafting item (212), and grafting item (212) is equipped with External screw thread, the top of the strut (211) are equipped with the threaded hole (213) with the external screw thread cooperation on grafting item (212).

3. a kind of mobile step ladder according to claim 2, it is characterised in that: four end of bottom of the platform (1) point Not She You a connecting column (11), four connecting columns (11) respectively be fitted into insertion four struts (211) of top on threaded hole (213) in.

4. a kind of mobile step ladder according to claim 3, it is characterised in that: the connecting column (11) is equipped with institute The fastening bolt (12) of connecting column (11) and strut (211) fixed locking.

5. a kind of mobile step ladder according to claim 2, it is characterised in that: same upper adjacent two branch of pillar (21) The junction of bar (211) is arranged with connecting bushing (22), on four pillars (21) between the equal connecting bushing (22) of height It is connected two-by-two by connecting rod (23).

6. a kind of mobile step ladder according to claim 5, it is characterised in that: the both ends of the connecting rod (23) are equipped with Hook, the lateral circle surface of the axle sleeve, which is equipped with, links up with the lantern ring (221) hitched for described.

7. a kind of mobile step ladder according to claim 1, it is characterised in that: the side lever (31) include several according to The loop bar (311) of secondary socket, the mounting portion is several mounting grooves (312) uniformly distributed along its length on loop bar (311), described The both ends of stepped plate (41) are respectively fixed with the mounting bar (42) in the chimeric insertion mounting groove (312).

8. a kind of mobile step ladder according to claim 7, it is characterised in that: the mounting groove (312) is passed through for level The circular hole of bar (311) is worn, the mounting bar (42) is cylindric in agreeing with mounting groove (312), the mounting bar (42) Free end stretches out the mounting groove (312) and is equipped with hexagonal limit hole (421), and the hexagonal limit hole (421) is along the installation Item (42) it is axially extending, the loop bar (311) is equipped with one end and is limited on loop bar (311), described in the chimeric insertion of the other end Gag lever post (313) in hexagonal limit hole (421), there are for accommodating the recessed of gag lever post (313) in each loop bar (311) Slot (314).

9. a kind of mobile step ladder according to claim 8, it is characterised in that: the gag lever post (313) is L-shaped, limit Position bar (313) one end be hingedly mounted on the loop bar (311) away from stepped plate (41) side on, gag lever post (313) it is another In the chimeric insertion hexagonal limit hole (421) in one end.

10. a kind of mobile step ladder according to claim 1, it is characterised in that: four branch of body frame (2) bottom Bar (211) is fixed with the structural strengthening frame (6) in box shape close to ground one end, and the universal wheel (5) is fixedly mounted on structure The end of hog frame (6).