CN210122893U

CN210122893U - Multifunctional portable ladder

Info

Publication number: CN210122893U
Application number: CN201920773158.0U
Authority: CN
Inventors: 戴书军; 邱文跃; 张伟军; 肖峰; 曹骏; 雷浩宇; 郭超
Original assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-03-03
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a multifunctional portable ladder, which comprises a ladder body, wherein the ladder body comprises a first extension ladder, a second extension ladder, a third extension ladder and a fourth extension ladder; the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder comprise two ladder bars, and pedals for treading are erected between the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder; wherein, be the telescopic connection of lockable between first extension ladder, second extension ladder, third extension ladder and the fourth extension ladder. The utility model provides a multifunctional portable ladder, which is more convenient to carry through the telescopic connection of a first extension ladder, a second extension ladder, a third extension ladder and a fourth extension ladder and the arrangement of a locking structure; in addition, the telescopic function also enables the portable ladder to be suitable for use environments with different height requirements, so that the portable ladder has strong practicability.

Description

Multifunctional portable ladder

Technical Field

The utility model relates to a power maintenance apparatus technical field especially relates to a multi-functional portable ladder.

Background

With the continuous development of economic society, more and more automatic equipment of distribution network. For agricultural distribution networks, most of the automation equipment is arranged on the electric pole. If the automatic switch needs to be operated, a ladder or a high stool needs to be carried, most of the automatic agricultural distribution network equipment needs to walk on a long mountain, and the walking on the mountain by carrying the ladder or the high stool is inconvenient and hard.

Therefore, it is an urgent need to solve the problem of providing a portable ladder.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a multi-functional portable ladder solves the above-mentioned problem among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

a multifunctional portable ladder comprises a ladder body, wherein the ladder body comprises a first extension ladder, a second extension ladder, a third extension ladder and a fourth extension ladder; the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder comprise two ladder bars, and pedals for treading are erected between the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder;

the ladder rods of the first extension ladder, the second extension ladder and the third extension ladder are all hollow structures, and the diameters of the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder rod are sequentially decreased;

the ladder rod of the second extension ladder is telescopically inserted into the ladder rod of the first extension ladder, the top of the ladder rod of the first extension ladder is provided with a first extension connector, and the bottom of the second extension ladder is provided with a first extension pin;

the ladder rod of the third extension ladder is telescopically inserted into the ladder rod of the second extension ladder, a second extension connecting port is formed in the top of the ladder rod of the second extension ladder, and a second extension pin is arranged at the bottom of the third extension ladder;

the ladder rod of the fourth extension ladder is telescopically inserted into the ladder rod of the third extension ladder, a third extension connecting port is formed in the top of the ladder rod of the third extension ladder, and a third extension pin is arranged at the bottom of the fourth extension ladder;

when the multifunctional portable ladder is in a locked stretching state, the first telescopic pin is inserted into the first telescopic connecting port, the second telescopic pin is inserted into the second telescopic connecting port, and the third telescopic pin is inserted into the third telescopic connecting port.

Optionally, the ladder comprises a ladder head, wherein the ladder head comprises two ladder head supporting rods, and a ladder head leaning rod is erected between the ladder head supporting rods; the bottom of the ladder head supporting rod is provided with a ladder head telescopic pin;

the top of the ladder rod of the fourth extension ladder is provided with a mounting hole; when the ladder head is connected with the fourth extension ladder, the ladder head extension pin is inserted into the mounting hole.

Optionally, the ladder head leaning rod is in a V shape.

Optionally, the ladder head leaning rod is arc-shaped.

Optionally, the ladder head leaning rod is in a straight cross rod shape.

Optionally, the bottom of the ladder rod of the first extension ladder is provided with anti-skid ladder feet.

Optionally, the outer side of the ladder body is coated with an insulating layer.

Optionally, the pedal comprises a main pedal and an auxiliary pedal, and the main pedal is hinged with the auxiliary pedal; the angle between the main pedal and the auxiliary pedal in the open state is at most 180 degrees.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a multifunctional portable ladder, which is more convenient to carry through the telescopic connection of a first telescopic ladder, a second telescopic ladder, a third telescopic ladder and a fourth telescopic ladder and the arrangement of a locking structure; in addition, the telescopic function also enables the portable ladder to be suitable for use environments with different height requirements, so that the portable ladder has strong practicability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural view of a multifunctional portable ladder provided by the present invention;

fig. 2 is a schematic structural view of a ladder head of the multifunctional portable ladder provided by the present invention;

fig. 3 is another schematic structural view of the ladder head of the multifunctional portable ladder provided by the present invention;

fig. 4 is a schematic view of another structure of the ladder head of the multifunctional portable ladder of the present invention;

fig. 5 is a side view of a ladder head of the multifunctional portable ladder provided by the present invention;

fig. 6 is a schematic structural view of the multifunctional portable ladder provided by the present invention with a ladder head;

fig. 7 is a schematic structural view of a pedal plate in the installation of the multifunctional portable ladder provided by the utility model.

In the above figures: 10. a ladder body; 11. a first extension ladder; 111. a first telescopic connector; 12. a second extension ladder; 121. a second telescopic connector; 122. a first retractable pin; 13. a third telescopic ladder; 131. a third telescopic connector; 132. a second retractable pin; 14. a fourth extension ladder; 141. mounting holes; 142. a third telescopic pin; 20. anti-skid ladder feet; 30. a foot pedal; 301. a main pedal; 302. a sub-pedal; 40. a ladder head; 41. a ladder head supporting rod; 42. a ladder head telescopic pin; 43. the ladder head leans on the pole.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

An object of the utility model is to provide a multi-functional portable ladder makes it carry away in more light mode through telescopic ladder body 10 structure, is convenient for use in complicated topography to facilitate for the staff.

Referring to fig. 1, the present invention provides a multifunctional portable ladder, which comprises a ladder body 10, wherein the ladder body 10 comprises a first extension ladder 11, a second extension ladder 12, a third extension ladder 13 and a fourth extension ladder 14. The outside of the ladder body 10 is coated with an insulating layer so as to meet the requirements in the process of power maintenance.

Wherein, first extension ladder 11, second extension ladder 12, third extension ladder 13 and fourth extension ladder 14 all include two ladder poles that set up side by side, all erect the running-board 30 that is used for trampling between first extension ladder 11, second extension ladder 12, third extension ladder 13 and the flexible two ladder poles of fourth.

In order to realize the telescopic function of the ladder body 10, the ladder bars of the first telescopic ladder 11, the second telescopic ladder 12 and the third telescopic ladder 13 are all hollow structures, and the diameters of the first telescopic ladder 11, the second telescopic ladder 12, the third telescopic ladder 13 and the fourth telescopic ladder bar are sequentially decreased progressively; thus the ladder bars of the second ladder 12 are telescopically inserted in the ladder bars of the first ladder 11, the ladder bars of the third ladder 13 are telescopically inserted in the ladder bars of the second ladder 12, and the ladder bars of the fourth ladder 14 are telescopically inserted in the ladder bars of the third ladder 13.

When the portable extension ladder is carried out, the first extension ladder 11 is pushed inwards into the second extension ladder 12, the second extension ladder 12 is pushed inwards into the third extension ladder 13, and the third extension ladder 13 is pushed into the fourth extension ladder 14, so that the length of the ladder is shortened, and the portable extension ladder is convenient to carry out.

In this embodiment, in order to realize the locking function when the ladder extends, first extension ladder 11, second extension ladder 12, third extension ladder 13 and fourth are flexible to be equipped with the locking structure who matches each other between two liang:

a first telescopic connecting port 111 is formed at the top of the ladder bar of the first telescopic ladder 11, and a first telescopic pin 122 is arranged at the bottom of the second telescopic ladder 12; a second telescopic connecting port 121 is formed in the top of the ladder bar of the second telescopic ladder 12, and a second telescopic pin 132 is arranged at the bottom of the third telescopic ladder 13; a third telescopic connecting port 131 is formed at the top of the bar of the third telescopic ladder 13, and a third telescopic pin 142 is arranged at the bottom of the fourth telescopic ladder 14.

When the multifunctional portable ladder is in a locked stretching state, the first telescopic pin 122 is inserted into the first telescopic connecting port 111, the second telescopic pin 132 is inserted into the second telescopic connecting port 121, and the third telescopic pin 142 is inserted into the third telescopic connecting port 131, so that the ladder is locked in the stretching state to provide stability during use.

In addition, because the ladder needs to be placed on the support to be used anywhere, and the supported support is round or square, the traditional ladder is difficult to match with the supported support, the situation that the ladder is shaken or even overturned can occur when the ladder is used, and the personal safety of workers is threatened.

Based on the above consideration, the present embodiment is modified based on the above embodiment as follows:

referring to fig. 2 to 6, the multifunctional portable extension ladder provided in this embodiment further includes a ladder head 40, the ladder head 40 includes two ladder head supporting rods 41, and a ladder head leaning rod 43 is installed between the ladder head supporting rods 41; the bottom of the ladder head support rod 41 is provided with a ladder head telescopic pin 42. Wherein, the top of the ladder bar of the fourth extension ladder 14 is provided with a mounting hole 141; when the ladder head 40 is connected to the fourth telescopic ladder 14, the ladder head telescopic pin 42 is inserted into the mounting hole 141.

Referring to fig. 2, in an alternative embodiment of the present embodiment, the ladder head leaning rod 43 is shaped like a "V". For example, when the object to be leaned on is a right-angled object such as a corner, the ladder head 40 with the V-shaped ladder head leaning rod 43 is selected, so that the ladder can be stably leaned on the object to avoid the ladder from sliding, shaking or even falling down.

Referring to fig. 3, in an alternative embodiment of the present embodiment, the ladder head leaning rod 43 is arc-shaped. For example, when the object to be leaned on is the cement pole of cylinder type, the ladder head 40 that has arc ladder head leaning on pole 43 is selected to be changed, can firmly withhold the cement pole of cylinder type to avoid the ladder landing, rock or even fall the ladder.

Referring to fig. 4, in an alternative embodiment of the present embodiment, the ladder head rest bar 43 is in the shape of a straight bar. For example, when the reclining object is a flat plane, the ladder head 40 having the straight cross bar-shaped ladder head reclining lever 43 may be selected to fit the flat reclining object.

In addition, in order to further improve the stability of the ladder, the bottom of the ladder bar of the first telescopic ladder 11 is provided with anti-skid ladder feet 20. The antiskid ladder foot 20 can be made of silica gel, rubber, PVC, PU, AB glue, magic glue and other antiskid materials, and has an antiskid function, so long as the antiskid function is achieved, and the limitation is not excessive.

Based on the above embodiment, in order to make the multifunctional portable ladder capable of being detached from leaning and flexibly placed for use, the embodiment is improved as follows:

two ladder bars of the fourth extension ladder 14 are provided with avoidance holes which are transversely penetrated (the left and right directions in fig. 1 are transverse directions). When no object to be leaned on can lean against, the tops of the two ladders are mutually overlapped to form a herringbone shape, and hinges are arranged at the avoidance holes of the two ladders to connect the two ladders in a hinged mode. In addition, in order to lock the two ladders at a certain angle, a ratchet wheel structure can be adopted to realize the connection of the two ladders.

It is understood that the hinge and the ratchet are common connecting components in mechanical structures, and those skilled in the art can select the connecting components according to the needs, and the shapes and structures of the connecting components are not limited as long as the above functions can be achieved, so that the connecting components are not limited too much here.

Based on the above embodiment, in order to increase the usable area of the foot board 30 and improve the safety in use on the premise of satisfying the portability of the ladder, the embodiment is improved as follows:

referring to fig. 7, the foot pedal 30 includes a main pedal 301 and an auxiliary pedal 302, the main pedal 301 is hinged to the auxiliary pedal 302, so that the foot pedal 30 forms a foldable structure; the angle between the open state of the main step 301 and the open state of the sub step 302 is at most 180 °.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A multifunctional portable ladder is characterized by comprising a ladder body, wherein the ladder body comprises a first extension ladder, a second extension ladder, a third extension ladder and a fourth extension ladder; the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder comprise two ladder bars, and pedals for treading are erected between the first extension ladder, the second extension ladder, the third extension ladder and the fourth extension ladder;

2. The multi-functional portable ladder of claim 1, further comprising a ladder head, the ladder head comprising two ladder head support bars, a ladder head rest bar being bridged between the ladder head support bars; the bottom of the ladder head supporting rod is provided with a ladder head telescopic pin;

3. The multi-functional portable ladder of claim 2, wherein the ladder head rest bar is "V" shaped.

4. A multi-function portable ladder as claimed in claim 2, wherein said ladder head rest bar is arc-shaped.

5. A multi-function portable ladder as claimed in claim 2, wherein said ladder head rest bar is shaped as a straight bar.

6. The multi-functional portable ladder of claim 1, wherein the bottom of the ladder bar of the first extension ladder is provided with anti-slip ladder feet.

7. The multi-functional portable ladder of claim 1, wherein the ladder body is coated with an insulating layer on the outside.

8. The multi-functional portable ladder of claim 1, wherein the foot pedal includes a main pedal and a sub pedal, the main pedal being hingedly connected to the sub pedal; the angle between the main pedal and the auxiliary pedal in the open state is at most 180 degrees.