CN210343200U

CN210343200U - Folding caster of fence ladder

Info

Publication number: CN210343200U
Application number: CN201821921140.2U
Authority: CN
Inventors: 练展鹏
Original assignee: Dongguan Baozhi Metal Products Co ltd
Current assignee: Dongguan Baozhi Metal Products Co ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2020-04-17
Anticipated expiration: 2028-11-21

Abstract

The utility model discloses a folding truckle of rail ladder, the rail ladder is including having the double ladder of opening and converting into two operating condition, the double ladder includes two first terraces poles, two second terraces poles, the flexible foot of establishing an adjustable length is all inserted to the lower part of two first terraces poles and two second terraces poles, folding truckle sets up on the flexible foot of two second terraces poles, folding truckle is including setting up the mounting bracket between flexible foot and anti-skidding gluey foot, folding seat, spring and pulley, be provided with the pivot of being connected with the mounting bracket rotation on the folding seat, the one end in the pivot is established to the spring housing, the pivot is provided with annular chimb in the one end that is close to the spring, the both ends of spring support respectively on mounting bracket inner wall and chimb, be provided with U type installation department on the folding seat, the pulley sets up in U type installation department. The utility model has the antiskid effect through the antiskid rubber feet, so that the ladder is firmly attached to the ground; through folding truckle, will fold the truckle and open the removal transport of the ladder of being convenient for, receive the storage of being convenient for after closing.

Description

Folding caster of fence ladder

Technical Field

The utility model relates to a ladder technical field, in particular to folding truckle of rail ladder.

Background

The rail ladder is used for high altitude construction usually, the platform of rail ladder top can supply the people to stand, but current rail ladder is heavier, make the rail ladder move with more difficulty, inconvenient ladder storage and transport, the operating efficiency is low, in addition in the use of ladder, the ladder foot length of traditional ladder is fixed unchangeable, make when the subaerial ladder that uses of height unevenness, the unable fine erects subaerial of ladder, incline easily when making the ladder erect, the terminal surface of ladder foot and ground connection is the rigidity material more simultaneously, make the ladder erect the easy emergence of back ladder foot and slide, make the ladder use unsafe.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the defect that exists among the above-mentioned prior art, provide a folding truckle of rail ladder to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the technical scheme adopted by the utility model is that the folding caster of the fence ladder comprises a herringbone ladder with two working states of opening and folding, the herringbone ladder comprises two first ladder rods, two second ladder rods and a plurality of steps respectively arranged between the two first ladder rods and between the two second ladder rods, and the upper parts of the first ladder rods are provided with connecting seats hinged with the second ladder rods; the lower part of two first terraces poles and two second terraces poles is all inserted and is established a flexible foot of adjustable length, folding truckle sets up on the flexible foot of two second terraces poles, folding truckle is including setting up mounting bracket, folding seat, spring and the pulley between flexible foot and anti-skidding gluey foot, be provided with the pivot of being connected with the mounting bracket rotation on the folding seat, the one end in the pivot is established to the spring housing, the pivot is provided with annular chimb in the one end that is close to the spring, the both ends of spring support respectively and lean on mounting bracket inner wall and chimb, be provided with U type installation department on the folding seat, the pulley sets up in U type installation department.

As a further elaboration of the above technical solution:

in the above technical solution, the first ladder bar and the second ladder bar are both provided with mounting shells; the locking assembly of the telescopic foot of location is provided with in the mounting shell, locking assembly includes locking seat and torsional spring, the locking seat middle part is provided with the axle of being connected with the mounting shell, the torsional spring cover is established epaxially, the locking seat is provided with handle and locking post respectively in the both sides of axle, be provided with two at least locating holes on the telescopic foot, the locking post is inserted and is established in one of them locating hole with fixed telescopic foot.

In above-mentioned technical scheme, all be provided with the spout in first ladder pole and the second ladder pole, flexible foot is inserted and is established in the spout, the inside sand grip that is equipped with suddenly of spout inner wall, open on the outer wall of flexible foot and make the guide slot corresponding with the sand grip, the guide slot only removes along the length direction of ladder pole with the restriction flexible foot with the sand grip joint.

In the above technical scheme, the length of the first ladder rod is greater than that of the second ladder rod.

In the above technical scheme, the mounting bracket is C-shaped.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model has reasonable structure, and the anti-skid rubber feet have anti-skid effect, so that the ladder is firmly attached to the ground; through folding truckle, will fold the truckle and open the removal transport of the ladder of being convenient for, receive the storage of being convenient for after closing.

Drawings

Fig. 1 is a schematic perspective view of the open state of the present invention;

FIG. 2 is an enlarged schematic view of one of the locking assemblies;

FIG. 3 is a second enlarged schematic view of the locking assembly;

fig. 4 is a structural view showing an unfolded state of the folding caster.

In the figure: 4. a pulley; 41. a folding seat; 42. an installation part; 43. a convex edge; 44. a rotating shaft; 45. a spring; 46. a mounting frame; 5. a telescopic leg; 51. a guide groove; 52. positioning holes; 53. anti-skid rubber feet; 54. a limiting block; 61. a handle; 62. a shaft; 63. A locking post; 64. a locking seat; 65. a torsion spring; 100. a first ladder bar; 101. stepping; 106. mounting a shell; 200. a second ladder bar.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 4.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-4, a foldable caster of a fence ladder comprises a herringbone ladder with two working states of opening and folding, the herringbone ladder comprises two first ladder bars, two second ladder bars and a plurality of steps respectively arranged between the two first ladder bars and between the two second ladder bars, and the upper parts of the first ladder bars are provided with connecting seats hinged with the second ladder bars; the utility model discloses a folding seat 41, including mounting bracket 46, folding seat 41, spring 45 and pulley 4, be provided with on folding seat 41 and rotate the pivot 44 of being connected with mounting bracket 46, the one end at pivot 44 is established to spring 45 cover, pivot 44 is provided with annular chimb 43 near spring 45's one end, spring 45's both ends are supported respectively and are leaned on mounting bracket 46 inner wall and chimb 43, be provided with U type installation department 42 on folding seat 41, pulley 4 sets up in U type installation department 42, the lower part of two first terraces 100 and two second terraces 200 is all inserted and is established a flexible foot 5 of adjustable length, folding caster sets up on the flexible foot of two second terraces, folding caster is including setting up mounting bracket 46 between flexible foot 5 and anti-skidding rubber foot 53, folding seat.

The first ladder bar 100 and the second ladder bar 200 are both provided with mounting shells 106; the locking assembly for positioning the telescopic leg 5 is arranged in the mounting shell 106 and comprises a locking seat 64 and a torsion spring 65, a shaft 62 connected with the mounting shell 106 is arranged in the middle of the locking seat 64, the torsion spring 65 is sleeved on the shaft 62, the locking seat 64 is respectively provided with a handle 61 and a locking column 63 on two sides of the shaft 62, at least two positioning holes 52 are formed in the telescopic leg 5, and the locking column 63 is inserted in one positioning hole 52 to fix the telescopic leg 5. The rotation of the locking column 63 is controlled by the handle 61 in the center of the shaft 62, and two ends of the torsion spring 65 respectively abut against the inner wall of the mounting shell 106 and the inner wall of the locking seat 64, so that the locking column 63 can be stably clamped into the positioning hole 52 and cannot be easily loosened. A step 101 of a ladder is provided between the installation cases 106.

All be provided with the spout in first ladder bar 100 and the second ladder bar 200, flexible foot 5 inserts and establishes in the spout, and the spout inner wall is inwards equipped with the sand grip suddenly, opens the system on the outer wall of flexible foot 5 and has the guide slot 51 corresponding with the sand grip, and guide slot 51 only removes along the length direction of ladder bar with the restriction flexible foot 5 with the sand grip joint.

The upper end of flexible foot 5 is provided with stopper 54, and locking post 63 keeps out stopper 54 and makes flexible foot 5 break away from in first ladder bar 100 or the second ladder bar 200, and the lower pot head of flexible foot 5 is equipped with anti-skidding rubber foot 53, has anti-skidding effect, makes the ladder firmly laminate subaerially.

The length of the first ladder bar 100 is greater than the length of the second ladder bar 200. The mounting rack is C-shaped.

The telescopic foot 5 which can be telescopically adjusted in the utility model can adjust the proper height (the adjustment range of 250 mm) of the ladder according to the use requirement, and can also be suitable for the uneven ground or the step level; the practicability of the ladder is improved; the anti-skid rubber feet 53 have an anti-skid effect, so that the ladder is firmly attached to the ground; through folding truckle, will fold the truckle and open the removal transport of the ladder of being convenient for, receive the storage of being convenient for after closing.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A folding caster of a fence ladder comprises a herringbone ladder with two working states of opening and folding, the herringbone ladder comprises two first ladder bars, two second ladder bars and a plurality of steps which are respectively arranged between the two first ladder bars and between the two second ladder bars, and a connecting seat hinged with the second ladder bars is arranged at the upper part of each first ladder bar; the folding foot ladder is characterized in that the lower parts of the two first ladder bars and the two second ladder bars are inserted with telescopic feet with adjustable lengths, the folding foot wheels are arranged on the telescopic feet of the two second ladder bars, the folding foot wheels comprise mounting frames, folding seats, springs and pulleys, the mounting frames are arranged between the telescopic feet and anti-skid rubber feet, rotating shafts connected with the mounting frames in a rotating mode are arranged on the folding seats, the springs are sleeved at one ends of the rotating shafts, annular convex edges are arranged at the ends, close to the springs, of the rotating shafts, the two ends of the springs are abutted to the inner walls and the convex edges of the mounting frames respectively, U-shaped mounting portions are arranged on the folding seats, and the pulleys are arranged in the U-shaped mounting portions.

2. The foldable caster of a fence ladder as claimed in claim 1, wherein the first ladder bar and the second ladder bar are each provided with a mounting shell; the locking assembly of the telescopic foot of location is provided with in the mounting shell, locking assembly includes locking seat and torsional spring, the locking seat middle part is provided with the axle of being connected with the mounting shell, the torsional spring cover is established epaxially, the locking seat is provided with handle and locking post respectively in the both sides of axle, be provided with two at least locating holes on the telescopic foot, the locking post is inserted and is established in one of them locating hole with fixed telescopic foot.

3. The foldable caster of a fence ladder as claimed in claim 1, wherein the first ladder bar and the second ladder bar are provided with sliding grooves, the telescopic legs are inserted into the sliding grooves, the inner walls of the sliding grooves are provided with raised lines inwards, the outer walls of the telescopic legs are provided with guide grooves corresponding to the raised lines, and the guide grooves are connected with the raised lines in a clamping manner to limit the telescopic legs to move only along the length direction of the ladder bars.

4. A collapsible castor for a fence ladder as claimed in claim 1, wherein the length of the first ladder bar is greater than the length of the second ladder bar.

5. A collapsible castor for a fence ladder as claimed in claim 1 wherein the mounting bracket is C-shaped.