CN114165157B

CN114165157B - Telescopic insulating ladder

Info

Publication number: CN114165157B
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: 2023-06-16
Anticipated expiration: 2041-12-06
Also published as: CN114165157A

Abstract

The invention discloses a telescopic insulating ladder, which comprises an outer main ladder, wherein the outer main ladder comprises a first supporting upright rod and a first pedal rod, a containing cavity is arranged in the first supporting upright rod, a long groove is formed in the inner side of the containing cavity, a penetrating groove communicated with the long groove is formed in the middle of the first pedal rod, and grid blocking pieces are arranged at two ends of the bottom of the first pedal rod; the inner ladder comprises second support vertical rods and second pedal rods which are arranged between the second support vertical rods at equal intervals, the second support vertical rods are arranged in the accommodating cavity, the width of each second pedal rod is smaller than that of the through groove, and inclined 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 use height of the insulating ladder is increased, the volume of the insulating ladder is reduced to the greatest extent, and the insulating ladder is convenient to carry and transport; meanwhile, the grid blocking piece is 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 ascending tools for electric power engineering, telecommunication engineering, electric engineering, hydroelectric engineering and the like. The good insulation characteristics of the insulating ladder ensure the life safety of workers to the greatest extent. The insulating ladder has the following characteristics: (1) non-conductive, novel in appearance, elegant in appearance; (2) Corrosion resistance, acid resistance, alkali resistance, organic solvent resistance, salt resistance and other corrosion resistance of various gas-liquid media; and (3) the weight is light, and the carrying is convenient.

The existing insulating ladder is designed according to the traditional straight ladder, only is improved in material, no specific change is made in function, and the following problems exist in practical application: the contact surface of the cross arm at the top of the insulating ladder and an arc object (a cylindrical pole, a tree and the like) is small, and the insulating ladder is unstable in support and easy to topple in actual work. When the cross arm at the top of the insulating ladder contacts the insulating cable or other cross arms, the contact surface is insufficient and cannot be in close contact with the insulating cable or other cross arms, and the insulating ladder is easy to collapse. The insulating ladder is around the place that the ground is uneven, and the landing leg can not stable support, needs pad batten or stone, causes whole empting easily because the object of filling up in the course of the work is not hard up. And the traditional insulating ladder adopts a straight ladder, so that the size of the insulating ladder is larger, and more inconvenience is brought when the insulating ladder is carried and moved.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.

In order to solve the technical problems, the invention provides the following technical scheme: the telescopic insulating ladder comprises an outer main ladder body, wherein the outer main ladder body comprises first supporting upright rods and first pedal rods which are arranged between the first supporting upright rods at equal intervals, a containing cavity is formed in the first supporting upright rods, long grooves are formed in the inner sides of the containing cavity, penetrating grooves communicated with the long grooves are formed in the middle of the first pedal rods, and grid blocking pieces are arranged at two ends of the bottom of the first pedal rods; the inner ladder comprises second support vertical rods and second pedal rods which are arranged between the second support vertical rods at equal intervals, wherein the second support vertical rods are arranged in the accommodating cavity, the width of each second pedal rod is smaller than that of the penetrating groove, and inclined blocks are arranged at two ends of the top of each second pedal rod.

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the spacing and thickness of the first pedal rod are the same as those of the second pedal rod.

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the outer side of the first supporting vertical rod is provided with a fixed ring, the first pedal rod is arranged on the first supporting vertical rod through the fixed 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 fixed ring is rotationally connected with the grid baffle.

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the check stop piece comprises a rotating block and a check stop block, wherein the rotating block is semicircular, an arc groove is formed in the top of the rotating block, a long bar block is arranged at one end of the rotating block, a spring cavity is formed in the long bar block, and the check stop block is arranged in the spring cavity through a spring.

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the two sides of the check block are provided with sliding blocks, and one end of the check block, which is far away from the spring cavity, is provided with a first inclined surface which is inclined downwards.

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

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

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the check keeps off the piece and is connected through the dwang, and the dwang top is provided with the stopper, the solid fixed ring outside of first support pole setting bottom is provided with two sets of grafting pieces, and the dwang is pegged graft in the grafting piece, and two sets of grafting pieces are 90 distributions.

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the inner ladder top sets up insulating slipmat, insulating slipmat is provided with the arc breach, and the inner ladder top is provided with the arc couple, arc couple outside cover is equipped with insulating cover.

As a preferable scheme of the telescopic insulating ladder of the invention, wherein: the bottom of the first supporting vertical rod is provided with an elongated cavity, and the elongated cavity is internally provided with an elongated vertical rod in a rotating mode.

The invention has the beneficial effects that: according to the invention, the inner ladder is arranged in the outer main ladder, so that the use height of the insulating ladder is increased, the volume of the insulating ladder is reduced to the greatest extent, and the insulating ladder is convenient to carry and transport; meanwhile, the grid blocking piece is 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 that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic diagram 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 mounting structure of the grid baffle of the present invention.

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

Fig. 6 is a schematic view showing a state of fixing the stopper of the present invention.

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

Fig. 8 is a schematic diagram of the invention in a state of canceling the grid.

Fig. 9 is an enlarged partial schematic view of a in fig. 7.

Fig. 10 is an enlarged partial schematic view of B in fig. 8.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

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 other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be 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, in a first embodiment of the present invention, an extension insulating ladder is provided, which includes an outer main ladder 100, including a first supporting upright 101 and first pedal rods 102 equally spaced between the first supporting upright 101, a receiving cavity 103 is provided in the first supporting upright 101, a long slot 104 is provided in the inner side of the receiving cavity 103, a through slot 105 communicating with the long slot 104 is provided in the middle of the first pedal rod 102, the long slot 104 is communicated with the through slot 105, the inner ladder 200 can move up and down in the two slots, that is, up and down movement in the outer main ladder 100 is realized, two ends of the bottom of the first pedal rod 102 are provided with grid stoppers 106, and the grid stoppers 106 are used for blocking a second pedal rod 202 located in the through slot 105 provided by the first pedal rod 102 from falling, that is, the extension height of the inner ladder 200 is realized by the grid stoppers 106; the inner ladder 200 comprises second support vertical rods 201 and second pedal rods 202 which are arranged between the second support vertical rods 201 at equal intervals, the second support vertical rods 201 are arranged in the accommodating cavity 103, the width of each second pedal rod 202 is smaller than that of the corresponding through groove 105, namely, each second pedal rod 202 can penetrate through the corresponding first pedal rod 102, inclined blocks 203 are arranged at two ends of the top of each second pedal rod 202, each inclined block 203 is used for pushing up each grid baffle 106 when the corresponding second pedal rod 202 moves below the corresponding first pedal rod 102, the corresponding second pedal rod 202 can smoothly pass through the corresponding through groove 105 formed in the corresponding first pedal rod 102, and after the corresponding second pedal rod 202 passes through, the corresponding grid baffle 106 is restored, so that the second pedal rod 202 is supported, namely, the inner ladder 200 is fixed.

The two sides of the bottom of each step of first pedal rod 102 are provided with a stop piece 106, under the stop supporting action of the stop pieces 106, the second pedal rod 202 of the inner ladder 200 is fixed in the through groove 105 arranged in the middle of the first pedal rod 102, when the length of the outer main ladder 100 is insufficient, the inner ladder 200 is moved upwards, when the second pedal rod 202 of the lower step rises to the bottom of the first pedal rod 102 of the upper step, the inclined block 203 at the top of the second pedal rod 202 is abutted against the stop pieces 106 at the bottom of the first pedal rod 102, and as the second pedal rod 202 continues to rise, the inclined block 203 pushes up the stop pieces 106 to enable the second pedal rod 202 of the lower step to pass through, so that the second pedal rod 202 of the upper step enters the through groove 105 of the first pedal rod 102 of the upper step, when the second pedal rod 202 of the lower step completely enters the through groove 105 of the first pedal rod 102 of the upper step, the stop piece 106 is reduced, and the stop fixing action is generated on the second pedal rod 202 again, so that the inner ladder 200 can be fixed. The ascending operation is repeated, so that the step-by-step ascending and step-by-step fixing of the inner ladder 200 can be realized, and 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 use height of the insulating ladder is increased, the volume of the insulating ladder is reduced to the greatest extent, and the insulating ladder is convenient to carry and transport; meanwhile, the grid retaining pieces 106 are arranged at the bottom of each step of the first pedal rod 102, so that the step-by-step ascending and step-by-step fixing of the inner ladder 200 are realized, and the height of the telescopic insulating ladder can be flexibly adjusted according to the requirement.

Example 2

Referring to fig. 1 to 10, a second embodiment of the present invention is different from the first embodiment in that: the spacing and thickness of the first pedal rod 102 are the same as the spacing and thickness of the second pedal rod 202, so that the outer main ladder 100 and the inner ladder 200 can be completely overlapped, thereby further reducing the volume of the insulating ladder and facilitating the carrying and carrying thereof.

Further, the fixing ring 107 is disposed on the outer side of the first supporting upright 101, the first pedal rod 102 is mounted on the first supporting upright 101 through the fixing ring 107, the thickness of the bottommost first pedal rod 102 is larger than that of the other first pedal rods 102, the middle parts of the other first pedal rods 102 are all through grooves 105, the bottoms of the through grooves 105 in the middle parts of the bottommost first pedal rod 102 are in non-through states due to the larger thickness, the bottommost first pedal rod 102 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 bottommost first pedal rod 102 is used as the bearing pedal rod to bear the weight of a user, and the grid baffle 106 can not bear the force, so that when the inner ladder 200 is not used, the grid baffle 106 is not loaded, the service life of the grid baffle 106 is prolonged, and damage and falling caused under a long-term environment are prevented. The bottom of the fixing ring 107 is rotatably connected with the catch 106, when the inner ladder 200 is used and needs to be recovered, the catch 106 is rotated to leave the lower part of the through groove 105, and at this time, the catch fixing effect of the catch 106 on the second pedal lever 202 is eliminated, so that the inner ladder 200 can be recovered.

Further, the check member 106 includes a rotating block 106a and a check block 106b, the rotating block 106a is in a semi-circular shape, the top of the rotating block 106a is provided with an arc groove 106c, one end of the rotating block 106a is provided with a strip block 106d, a spring cavity 106e is provided in the strip block 106d, and the check block 106b is disposed in the spring cavity 106e through a spring 106 b-1. The two sides of the check block 106b are provided with sliding blocks 106b-2, the spring cavity 106e is internally provided with sliding grooves matched with the sliding blocks 106b-2, the sliding blocks 106b-2 can play a role in guiding and supporting the check block 106b, and one end of the check block 106b far away from the spring cavity 106e is provided with a first inclined surface 106b-3 which is inclined downwards. The bottom of the fixed ring 107 is provided with an arc slider 107a, and the arc slider 107a is disposed in the arc groove 106 c. The incline block 203 is provided with a second incline 203a, and the second incline 203a is parallel to the first incline 106b-3, and the width of the incline block 203 is the same as the width of the second pedal lever 202.

The rotating block 106a is rotationally connected with the fixed ring 107 through the arc sliding block 107a, and in a normal state, the check block 106b is positioned right below the through groove 105 and is abutted against the second pedal rod 202 in the through groove 105, so that a check 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 upward, the next second step bar 202 moves upward away from the through groove 105 of the original first step bar 102, the first step bar 102 is moved upward, when the second step bar 202 moves to a certain position below the previous first step bar 102, the second inclined surface 203a of the top inclined block 203 of the second step bar 202 abuts against the first inclined surface 106b-3 of the grid stopper 106b, as the second step bar 202 continues to rise, the inclined block 203 gradually pushes the grid stopper 106b to move into the spring cavity 106e, the spring 106b-1 gradually compresses, when the grid stopper 106b moves to the lowest side of the inclined block 203, the first inclined surface 106b-3 abuts against the side surface of the second step bar 202 until the grid stopper 106b is completely pushed up by the inclined block 203, and when the second step bar 202 completely enters into the through groove 105 of the previous first step bar 102, the pressure of the inclined block 203 gradually pushes the grid stopper 106b into the spring cavity 106e, the grid stopper 106b is again fixed by the spring 106b, and the grid stopper 106b is again released from the lower side of the second step bar 202, and the grid stopper 106b is again fixed. If the inner ladder 200 needs to be moved upwards continuously, the operation is repeated, and the step-by-step ascending and step-by-step fixing of the inner ladder 200 are realized, so that the height of the telescopic insulating ladder can be flexibly adjusted according to the requirement. The check block 106b at the bottom of each step of the first pedal rod 102 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 check block 106b fails and the inner ladder 200 slides down in the use process.

Further, the grid baffle members 106 are connected through rotating rods 106f, the rotating rods 106f penetrate through the grid baffle members 106 of each group, limiting blocks are arranged at the tops of the rotating rods 106f, two groups of plug-in blocks 107b are arranged on the outer sides of the fixed rings 107 at the bottoms of the first supporting vertical rods 101, the rotating rods 106f are plugged in the plug-in blocks 107b, and the two groups of plug-in blocks 107b are distributed at 90 degrees.

The rotating block 106a is rotatably connected with the fixed ring 107 through the circular arc sliding block 107a, and the check blocks 106b at the bottom of each step of the first pedal lever 102 are connected with each other through the rotating lever 106 f. When the grid stop block 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 with the first pedal rod 102, the arc sliding block 107a is abutted with 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 has a limit effect on the rotating block 106a, so that the rotating block 106a is prevented from rotating when the grid stop block 106b receives pressure, and the subsequent grid stop function of the grid stop block 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 inserting blocks 107b, the limiting effect of the rotating block 106a is cancelled, then the rotating rod 106f is rotated towards the other group of inserting blocks 107b, all the grid blocking pieces 106 simultaneously rotate, when the rotating rod 106f rotates to the position above the other group of inserting blocks 107b, the arc sliding blocks 107a simultaneously reach the other end of the arc groove 106c, the grid blocking pieces 106b rotate to leave the position below the penetrating groove 105, the grid blocking fixing effect of the grid blocking pieces 106 on the second pedal rod 202 is eliminated, and the inner ladder 200 naturally falls back and is recovered. If the stop 106 is not needed, the rotating rod 106f can be put down to fall into the other group of plug blocks 107 b; if the check member 106 needs to be used continuously, the rotating rod 106f is rotated to return to the original plug-in block 107 b.

Further, an insulating anti-slip pad 204 is arranged at the top of the inner ladder 200, the insulating anti-slip pad 204 is provided with an arc-shaped notch, and the insulating ladder can be more stably fixed on a leaning arc-shaped electric pole or tree through the insulating anti-slip pad 204; the top of the inner ladder 200 is provided with the arc-shaped hook 205, the outer side of the arc-shaped hook 205 is sleeved with the insulating sleeve, and the top of the insulating ladder can be firmly contacted with a cable or a cross arm through the arc-shaped hook 205, so that the stability of the insulating ladder is ensured. The bottom of the first supporting upright pole 101 is provided with an elongated cavity, the elongated cavity is internally provided with an elongated upright pole 108 in a rotating mode, and when the insulating ladder is arranged on an uneven ground, the first supporting upright pole 101 can not be stably supported, the length of the elongated upright pole 108 at the bottom of the first supporting upright pole 101 can be adjusted, so that the insulating ladder is suitable for uneven road surfaces.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, 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 the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims

1. The utility model provides a flexible insulating ladder which characterized in that: comprising the steps of (a) a step of,

the outer main ladder (100) comprises first supporting vertical rods (101) and first pedal rods (102) which are 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), long grooves (104) are formed in the inner sides of the containing cavities (103), penetrating grooves (105) which are communicated with the long grooves (104) are formed in the middle of the first pedal rods (102), and grid blocking pieces (106) are arranged at two ends of the bottom of the first pedal rods (102);

the inner ladder (200) comprises second supporting vertical rods (201) and second pedal rods (202) which are 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 each second pedal rod (202) is smaller than that of the corresponding through groove (105), and inclined blocks (203) are arranged at two ends of the top of each second pedal rod (202);

the outer side of the first supporting vertical rod (101) is provided with a fixed ring (107), the first pedal rod (102) is arranged on the first supporting vertical rod (101) through the fixed ring (107), the thickness of the first pedal rod (102) at the bottommost part is larger than that of the other first pedal rods (102), and the bottom of the fixed ring (107) is rotationally connected with the grid block piece (106);

the grid baffle (106) comprises a rotating block (106 a) and a grid stop block (106 b), the rotating block (106 a) is semicircular, an arc groove (106 c) is formed in the top of the rotating block (106 a), a long strip block (106 d) is arranged at one end of the rotating block (106 a), a spring cavity (106 e) is formed in the long strip block (106 d), and the grid stop block (106 b) is arranged in the spring cavity (106 e) through a spring (106 b-1);

the two sides of the check block (106 b) are provided with sliding blocks (106 b-2), and one end of the check block (106 b) far away from the spring cavity (106 e) is provided with a first inclined surface (106 b-3) which is inclined downwards;

the bottom of the fixed ring (107) is provided with an arc sliding block (107 a), and the arc sliding block (107 a) is arranged in the arc groove (106 c);

the inclined block (203) is provided with a second inclined plane (203 a), the second inclined plane (203 a) is parallel to the first inclined plane (106 b-3), and the width of the inclined block (203) is the same as the width of the second pedal lever (202);

the grid baffle (106) is connected through a rotating rod (106 f), a limiting block is arranged at the top of the rotating rod (106 f), two groups of plug-in blocks (107 b) are arranged on the outer side of a fixed ring (107) at the bottom of the first supporting vertical rod (101), the rotating rod (106 f) is plugged in the plug-in blocks (107 b), and the two groups of plug-in blocks (107 b) are distributed at 90 degrees.

2. A telescopic insulating ladder according to claim 1, characterized in that: the first pedal lever (102) has the same pitch and thickness as the second pedal lever (202).

3. A telescopic insulating ladder according to claim 1 or 2, characterized in that: the insulating anti-slip mat (204) is arranged at the top of the inner ladder (200), an arc-shaped notch is formed in the insulating anti-slip mat (204), an arc-shaped hook (205) is arranged at the top of the inner ladder (200), and an insulating sleeve is sleeved outside the arc-shaped hook (205).

4. A telescopic insulating ladder according to claim 3, characterized in that: an elongated cavity is formed in the bottom of the first supporting vertical rod (101), and an elongated vertical rod (108) is rotatably arranged in the elongated cavity.