CN114165157A

CN114165157A - Telescopic insulating ladder

Info

Publication number: CN114165157A
Application number: CN202111477441.7A
Authority: CN
Inventors: 张羿; 赖劲舟; 顾行健; 王元峰; 杨金铎; 王林波; 王冕; 曾惜; 范旭阳; 姚健飞; 王雪阳; 龙思璇; 兰雯婷; 文迪
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-03-11
Anticipated expiration: 2041-12-06
Also published as: CN114165157B

Abstract

The invention discloses a telescopic insulating ladder, which comprises an outer main ladder, a first support vertical rod and a first pedal rod, wherein an accommodating cavity is arranged in the first support vertical rod; the inner ladder comprises a second supporting vertical rod and second pedal rods arranged between the second supporting vertical rods at equal intervals, the second supporting vertical rod is arranged in the accommodating cavity, the width of each second pedal rod is smaller than that of each through groove, and oblique blocks are arranged at two ends of the top of each second pedal rod. According to the invention, the inner ladder is arranged in the outer main ladder, so that the volume of the insulating ladder is reduced to the greatest extent while the use height of the insulating ladder is increased, and the insulating ladder is convenient to carry and transport; meanwhile, the barrier parts are arranged at the bottom of the first pedal rod of each step, so that the step-by-step ascending and the step-by-step fixing of the inner ladder are realized, and the height of the telescopic insulating ladder can be flexibly adjusted according to the requirement.

Description

Telescopic insulating ladder

Technical Field

The invention relates to the technical field of insulating ladders, in particular to a telescopic insulating ladder.

Background

The insulating ladder is used for special climbing tools in electric power engineering, telecommunication engineering, electrical engineering, hydroelectric engineering and the like. The good insulating characteristics of insulating ladder furthest's assurance workman's life safety. The insulating ladder has the following characteristics: (1) the electric conduction is realized, the appearance is novel, and the appearance is attractive and elegant; (2) corrosion resistance, and has the corrosion resistance of acid, alkali, organic solvent, salt and other gas and liquid media; (3) light weight and convenient carrying.

The existing insulating ladder is designed according to the traditional straight ladder, is only improved in material, has no specific change on functions, and has the following problems in practical application: the contact surface of the cross arm at the top of the insulating ladder and arc-shaped objects (cylindrical electric poles, trees and the like) is small, so that the insulating ladder is unstable in actual work and easy to topple. When the cross arm at the top of the insulating ladder contacts an insulating cable or other cross arms, the contact surface is not enough, and the cross arm cannot be in close contact with the cable or other cross arms and is easy to collapse. The insulating ladder is about the place of unevenness on ground, and the landing leg can not the steady support, needs pad stuff or stone, and the whole is emptyd easily to cause because the object looseness that fills up in the course of the work. And the traditional insulating ladder adopts a straight ladder, has larger volume and brings more inconvenience when being carried and moved.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

In order to solve the technical problems, the invention provides the following technical scheme: a telescopic insulating ladder comprises an outer main ladder body and a main ladder body, wherein the outer main ladder body comprises first supporting vertical rods and first pedal rods which are arranged between the first supporting vertical rods at equal intervals, a containing cavity is formed in the first supporting vertical rods, an elongated slot is formed in the inner side of the containing cavity, a through slot communicated with the elongated slot is formed in the middle of each first pedal rod, and lattice blocking parts are arranged at two ends of the bottom of each first pedal rod; the inner ladder comprises a second supporting vertical rod and second pedal rods arranged between the second supporting vertical rods at equal intervals, the second supporting vertical rod is arranged in the accommodating cavity, the width of each second pedal rod is smaller than that of the corresponding through groove, and oblique blocks are arranged at two ends of the top of each second pedal rod.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the distance and the thickness of the first pedal levers are the same as those of the second pedal levers.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the outer side of the first supporting vertical rod is provided with a fixing ring, the first pedal rod is installed on the first supporting vertical rod through the fixing ring, the thickness of the first pedal rod at the bottommost part is larger than that of other first pedal rods, and the bottom of the fixing ring is rotatably connected with the lattice blocking piece.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: check keep off the piece and include turning block and check dog, the turning block is the semicircle ring-type, and the turning block top is provided with the circular arc groove, and turning block one end is provided with rectangular piece, and rectangular piece inside is provided with the spring chamber, the check dog passes through the spring and sets up in the spring intracavity.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the two sides of the grid blocking block are provided with sliding blocks, and one end, away from the spring cavity, of the grid blocking block is provided with a first inclined plane inclining downwards.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the bottom of the fixing ring is provided with an arc sliding block, and the arc sliding block is arranged in the arc groove.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the inclined block is provided with a second inclined plane which is parallel to the first inclined plane, and the width of the inclined block is the same as that of the second pedal rod.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the grid blocking pieces are connected through a rotating rod, a limiting block is arranged at the top of the rotating rod, two groups of inserting blocks are arranged on the outer side of the fixing ring at the bottom of the first supporting vertical rod, the rotating rod is inserted into the inserting blocks, and the two groups of inserting blocks are distributed in an angle of 90 degrees.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: the insulating non-slip mat is arranged at the top of the inner ladder and provided with an arc-shaped notch, the arc-shaped hook is arranged at the top of the inner ladder, and an insulating sleeve is sleeved on the outer side of the arc-shaped hook.

As a preferable aspect of the telescopic insulating ladder of the present invention, wherein: first support pole setting bottom is provided with the extension chamber, extension intracavity portion rotates and is provided with the extension pole setting.

The invention has the beneficial effects that: according to the invention, the inner ladder is arranged in the outer main ladder, so that the volume of the insulating ladder is reduced to the greatest extent while the use height of the insulating ladder is increased, and the insulating ladder is convenient to carry and transport; meanwhile, the barrier parts are arranged at the bottom of the first pedal rod of each step, so that the step-by-step ascending and the step-by-step fixing of the inner ladder are realized, and the height of the telescopic insulating ladder can be flexibly adjusted according to the requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the outer main ladder of the present invention.

Fig. 3 is a schematic view of the overall structure of the inner ladder of the present invention.

FIG. 4 is a schematic view of the installation structure of the barrier of the present invention.

FIG. 5 is a schematic view of a structure of the barrier of the present invention.

FIG. 6 is a schematic view of a fixed state of the grid block of the present invention.

Fig. 7 is a schematic view of the inner ladder lifting structure of the present invention.

FIG. 8 is a schematic view of the state of the barrier of the present invention being in a state of being canceled.

Fig. 9 is a partially enlarged view of a in fig. 7.

Fig. 10 is a partially enlarged view of B in fig. 8.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present invention provides a telescopic insulating ladder, which includes an outer main ladder 100 including first supporting upright posts 101 and first tread bars 102 disposed between the first supporting upright posts 101 at equal intervals, a receiving cavity 103 is disposed inside the first supporting upright post 101, a long groove 104 is disposed inside the receiving cavity 103, a through groove 105 communicated with the long groove 104 is disposed in the middle of the first tread bar 102, the long groove 104 is communicated with the through groove 105, the inner ladder 200 can move up and down in the two grooves, that is, up and down movement inside the outer main ladder 100 is realized, lattice pieces 106 are disposed at two ends of the bottom of the first tread bar 102, and the lattice pieces 106 are used for blocking a second tread bar 202 located in the through groove 105 disposed on the first tread bar 102 from falling, that is, the telescopic height of the inner ladder 200 is realized through the lattice pieces 106; the inner ladder 200 comprises second supporting vertical rods 201 and second pedal rods 202 arranged between the second supporting vertical rods 201 at equal intervals, the second supporting vertical rods 201 are arranged in the accommodating cavity 103, the width of the second pedal rods 202 is smaller than that of the through grooves 105, namely, the second pedal rods 202 can penetrate through the first pedal rods 102, the two ends of the tops of the second pedal rods 202 are provided with inclined blocks 203, the inclined blocks 203 are used for ejecting the blocking pieces 106 when the second pedal rods 202 move to the lower side of the first pedal rods 102, so that the second pedal rods 202 can smoothly pass through the through grooves 105 formed in the first pedal rods 102, and after the second pedal rods 202 pass through, the blocking pieces 106 are restored to support the second pedal rods 202, namely, the inner ladder 200 is fixed.

The two sides of the bottom of each step of the first pedal lever 102 are provided with the lattice piece 106, under the lattice piece supporting action of the lattice piece 106, the second pedal lever 202 of the inner ladder 200 is fixed in the through groove 105 arranged in the middle of the first pedal lever 102, when the length of the outer main ladder 100 is insufficient, the inner ladder 200 is moved upwards, when the second pedal lever 202 of the next step rises to the bottom of the first pedal lever 102 of the previous step, the inclined block 203 at the top of the second pedal lever 202 is abutted against the lattice piece 106 at the bottom of the first pedal lever 102, and as the second pedal lever 202 continues rising, the inclined block 203 pushes the lattice piece 106 open so that the second pedal lever 202 of the next step can pass through, and thus the second pedal lever 202 of the previous step enters the through groove 105 of the first pedal lever 102 of the previous step, and the lattice piece 106 is restored, and the lattice piece fixing action is generated on the second pedal lever 202 again, so that the inner ladder 200 can be fixed. The ascending operation is repeated, and the step-by-step ascending and the step-by-step fixing of the inner ladder 200 can be realized, so that the height of the telescopic insulating ladder can be flexibly adjusted according to the requirement.

According to the invention, the inner ladder 200 is arranged in the outer main ladder 100, so that the volume of the insulating ladder is reduced to the greatest extent while the use height of the insulating ladder is increased, and the insulating ladder is convenient to carry and transport; meanwhile, the grating pieces 106 are arranged at the bottom of the first pedal rod 102 at each step, so that the inner ladder 200 can ascend step by step and be fixed step by step, and the height of the telescopic insulating ladder can be flexibly adjusted as required.

Example 2

Referring to fig. 1 to 10, a second embodiment of the present invention is different from the first embodiment in that: the distance and thickness of the first pedal rods 102 are the same as those of the second pedal rods 202, so that the outer main ladder 100 and the inner ladder 200 can be completely overlapped, the volume of the insulating ladder is further reduced, and the insulating ladder is convenient to carry and transport.

Further, a fixing ring 107 is arranged outside the first supporting vertical rod 101, the first pedal rod 102 is mounted on the first supporting vertical rod 101 through the fixing ring 107, the thickness of the first pedal rod 102 at the bottommost part is greater than the thickness of the other first pedal rods 102, the middle parts of the other first pedal rods 102 are all penetrating grooves 105, and the bottom of the first pedal rod 102 at the bottommost part is in a non-penetrating state due to the fact that the bottom of the penetrating groove 105 at the middle part with the greater thickness is larger than the thickness of the other first pedal rods 102, the first pedal rod 102 at the bottommost part can be used as a bearing pedal rod, so that when the outer main ladder 100 and the inner ladder 200 are completely overlapped, the first pedal rod 102 at the bottommost part is used as the bearing pedal rod to bear the weight of a user, and the blocking piece 106 can not bear the force, so that when the inner ladder 200 is not used, the blocking piece 106 does not bear the weight, thereby prolonging the service life of the blocking piece 106 and preventing the damage and the dropping caused under the long-term bearing environment. The bottom of the fixing ring 107 is rotatably connected with the lattice piece 106, when the inner ladder 200 is used and needs to be recovered, the lattice piece 106 is rotated to leave the lower part of the through groove 105, and at the moment, the lattice piece 106 has no lattice piece fixing function on the second pedal rod 202, so that the recovery of the inner ladder 200 can be realized.

Further, the grid stopping piece 106 comprises a rotating block 106a and a grid stopping block 106b, the rotating block 106a is semicircular, an arc groove 106c is formed in the top of the rotating block 106a, a long block 106d is arranged at one end of the rotating block 106a, a spring cavity 106e is formed in the long block 106d, and the grid stopping block 106b is arranged in the spring cavity 106e through a spring 106 b-1. The two sides of the grid block 106b are provided with sliding blocks 106b-2, a sliding groove matched with the sliding block 106b-2 for use is arranged in the spring cavity 106e, the sliding block 106b-2 can play a role in guiding and supporting the grid block 106b, and one end, far away from the spring cavity 106e, of the grid block 106b is provided with a first inclined surface 106b-3 inclining downwards. The bottom of the fixed ring 107 is provided with an arc slider 107a, and the arc slider 107a is arranged in the arc groove 106 c. The oblique block 203 is provided with a second inclined surface 203a, the second inclined surface 203a is parallel to the first inclined surface 106b-3, and the width of the oblique block 203 is the same as that of the second pedal lever 202.

The rotating block 106a is rotatably connected with the fixed ring 107 through the arc sliding block 107a, and in a normal state, the blocking block 106b is positioned under the through groove 105 and is abutted against the second pedal rod 202 in the through groove 105, so that a blocking fixing effect is generated on the second pedal rod 202, and the spring 106b-1 in the spring cavity 106e is in a relaxed state; when the inner ladder 200 is moved upwards, the second pedal rod 202 of the next step is separated from the through groove 105 of the original first pedal rod 102 and moves upwards to the first pedal rod 102 of the previous step, when the second pedal rod 202 moves to a certain position below the first pedal rod 102 of the previous step, the second inclined surface 203a of the inclined block 203 at the top of the second pedal rod 202 is contacted with the first inclined surface 106b-3 of the check block 106b, along with the continuous rising of the second pedal rod 202, the inclined block 203 gradually pushes the check block 106b to move towards the inner part of the spring cavity 106e, the spring 106b-1 is gradually compressed, when the check block 106b moves to the lowest position of the inclined block 203, because the width of the inclined block 203 is the same as that of the second pedal rod 202, the first inclined surface 106b-3 is contacted with the side surface of the second pedal rod 202, therefore, the check block 106b is completely pushed open by the inclined block 203, the second pedal rod 202 can pass through to enter the through groove 105 of the first pedal rod 102 of the previous step, when the second pedal rod 202 completely enters the through slot 105 of the first pedal rod 102 at the previous step, the pressure received by the check block 106b disappears, and under the action of the spring 106b-1, the check block 106b extends out of the spring cavity 106e to generate the check fixing action on the second pedal rod 202 again, so that the inner ladder 200 is fixed. If the inner ladder 200 needs to be moved upwards continuously, the operations are repeated, so that the inner ladder 200 is lifted step by step and fixed step by step, and the height of the telescopic insulating ladder can be flexibly adjusted according to the requirement. The check block 106b at the bottom of the first pedal lever 102 at each step can bear the weight pressure of the user, so that the use safety of the inner ladder 200 is ensured, and the user is prevented from being injured due to the fact that the inner ladder 200 falls off when the check block 106b fails in the use process.

Furthermore, the grid blocking members 106 are connected through a rotating rod 106f, the rotating rod 106f penetrates through each group of grid blocking members 106, the top of the rotating rod 106f is provided with a limiting block, two groups of insertion blocks 107b are arranged outside the fixing ring 107 at the bottom of the first supporting upright rod 101, the rotating rod 106f is inserted into the insertion blocks 107b, and the two groups of insertion blocks 107b are distributed at 90 degrees.

The rotating block 106a is rotatably connected with the fixed ring 107 through an arc slider 107a, and the stop blocks 106b at the bottom of the first pedal lever 102 of each step are connected with each other through a rotating lever 106 f. When the grid stopper 106b is positioned right below the through groove 105, the rotating rod 106f is inserted into the insertion block 107b positioned in the same direction as the first pedal rod 102, the arc sliding block 107a is abutted against one end of the arc groove 106c arranged on the rotating block 106a, and the rotating rod 106f inserted into the insertion block 107b simultaneously generates a limiting effect on the rotating block 106a, so that the rotating block 106a is prevented from rotating when the grid stopper 106b receives pressure, and the subsequent grid stopping function of the grid stopper 106b cannot be realized; when the inner ladder 200 is used and needs to be recovered, the rotating rod 106f is moved upwards, so that the rotating rod 106f leaves the original insertion block 107b, the limiting function of the rotating block 106a is cancelled, then the rotating rod 106f is rotated towards the direction of the other group of insertion blocks 107b, all the lattice blocking pieces 106 are simultaneously and correspondingly rotated, when the rotating rod 106f is rotated to the upper side of the other group of insertion blocks 107b, the arc sliding block 107a simultaneously reaches the other end of the arc groove 106c, the lattice blocking piece 106b is rotated to leave the lower side of the penetrating groove 105, at the moment, the lattice blocking piece 106 has no lattice blocking fixing function on the second pedal rod 202, and the inner ladder 200 naturally falls back for recovery. If the barrier 106 is not needed later, the turning rod 106f can be lowered to fall into another set of plug-in blocks 107 b; if the use of the stopper 106 is required to be continued, the rotating lever 106f is rotated to return to the original insertion block 107 b.

Further, an insulating anti-skid pad 204 is arranged at the top of the inner ladder 200, the insulating anti-skid pad 204 is provided with an arc-shaped notch, and the insulating ladder can be more stably fixed on a leaning arc-shaped pole or a leaning tree through the insulating anti-skid pad 204; the top of inner ladder 200 is provided with arc couple 205, and arc couple 205 outside cover is equipped with insulating cover, can realize insulating ladder top and cable or cross arm firm contact through arc couple 205, guarantees that insulating ladder is firm. First support pole setting 101 bottom is provided with the chamber of lengthening, and extension intracavity portion rotates and is provided with extension pole setting 108, and when insulating ladder was in the place of unevenness on ground, first support pole setting 101 can not the steady support, can be through the length of adjustment first support pole setting 101 bottom extension pole setting 108 for it is applicable to unevenness's road surface.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a flexible insulating ladder which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the outer main ladder (100) comprises first supporting vertical rods (101) and first pedal rods (102) arranged between the first supporting vertical rods (101) at equal intervals, wherein a containing cavity (103) is formed in the first supporting vertical rods (101), a long groove (104) is formed in the inner side of the containing cavity (103), a through groove (105) communicated with the long groove (104) is formed in the middle of each first pedal rod (102), and lattice stoppers (106) are arranged at two ends of the bottom of each first pedal rod (102);

the inner ladder (200) comprises a second supporting vertical rod (201) and second pedal rods (202) arranged between the second supporting vertical rod (201) at equal intervals, the second supporting vertical rod (201) is arranged in the accommodating cavity (103), the width of each second pedal rod (202) is smaller than that of the corresponding through groove (105), and oblique blocks (203) are arranged at two ends of the top of each second pedal rod (202).

2. The telescopic insulating ladder of claim 1, wherein: the pitch and thickness of the first pedal levers (102) are the same as the pitch and thickness of the second pedal levers (202).

3. A telescopic insulating ladder as claimed in claim 1 or 2, characterized in that: the outer side of the first supporting vertical rod (101) is provided with a fixing ring (107), the first pedal rod (102) is installed on the first supporting vertical rod (101) through the fixing ring (107), the thickness of the first pedal rod (102) at the bottommost part is larger than that of the first pedal rods (102), and the bottom of the fixing ring (107) is rotatably connected with the grid stopper (106).

4. A telescopic insulating ladder as claimed in claim 3, characterized in that: the lattice stopper (106) comprises a rotating block (106a) and a lattice stopper (106b), the rotating block (106a) is semicircular, an arc groove (106c) is formed in the top of the rotating block (106a), a long block (106d) is arranged at one end of the rotating block (106a), a spring cavity (106e) is formed in the long block (106d), and the lattice stopper (106b) is arranged in the spring cavity (106e) through a spring (106 b-1).

5. The telescopic insulating ladder of claim 4, wherein: and sliding blocks (106b-2) are arranged on two sides of the grid block (106b), and a first inclined surface (106b-3) inclining downwards is arranged at one end, far away from the spring cavity (106e), of the grid block (106 b).

6. The telescopic insulating ladder of claim 5, wherein: the bottom of the fixing ring (107) is provided with an arc sliding block (107a), and the arc sliding block (107a) is arranged in the arc groove (106 c).

7. The telescopic insulating ladder of claim 6, wherein: the inclined block (203) is provided with a second inclined surface (203a), the second inclined surface (203a) is parallel to the first inclined surface (106b-3), and the width of the inclined block (203) is the same as that of the second pedal rod (202).

8. The telescopic insulating ladder of claim 7, wherein: the lattice blocking pieces (106) are connected through a rotating rod (106f), the top of the rotating rod (106f) is provided with a limiting block, two groups of inserting blocks (107b) are arranged on the outer side of a fixing ring (107) at the bottom of the first supporting vertical rod (101), the rotating rod (106f) is inserted into the inserting blocks (107b), and the two groups of inserting blocks (107b) are distributed in an angle of 90 degrees.

9. A telescopic insulating ladder as claimed in any one of claims 1, 2, 4-8, characterized in that: insulating non-slip mat (204) is arranged at the top of the inner ladder (200), an arc-shaped notch is formed in the insulating non-slip mat (204), an arc-shaped hook (205) is arranged at the top of the inner ladder (200), and an insulating sleeve is sleeved on the outer side of the arc-shaped hook (205).

10. The telescopic insulating ladder of claim 9, wherein: the bottom of the first supporting vertical rod (101) is provided with a lengthening cavity, and the inside of the lengthening cavity is rotatably provided with a lengthening vertical rod (108).