Multifunctional insulating ladder

Abstract

The utility model discloses a multifunctional insulating ladder which comprises a fixed ladder which comprises two first longitudinal beams and a plurality of first cross beams fixed between the two first longitudinal beams; the top end of the rotating ladder is rotationally connected with the fixed ladder, the rotating axis of the rotating ladder is parallel to the first cross beams, the rotating ladder at least has a first state parallel to the fixed ladder and a second state forming a set angle with the fixed ladder in the rotating process, and the rotating ladder comprises two second longitudinal beams and a plurality of second cross beams fixed between the two second longitudinal beams; the extension ladder is connected to the fixed ladder and parallel to the fixed ladder, the position of the extension ladder can be adjusted in the length direction of the fixed ladder, the extension ladder can extend out of the top end of the fixed ladder in the adjusting process, and the extension ladder comprises two third longitudinal beams and a plurality of third cross beams fixed between the two third longitudinal beams. The multifunctional insulating ladder disclosed by the embodiment of the utility model can meet various use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of climbing tools, in particular to a multifunctional insulating ladder. Background Art

[0002] Insulated ladders are mostly used in power engineering, telecommunications engineering, electrical engineering, and hydropower engineering. They are a special climbing tool. The good insulation characteristics of the insulating ladder guarantee the safety of workers to the greatest extent. Compared with occasions where the space is narrow and mechanical assistance cannot be used, the use of insulating ladders is more convenient to complete work tasks. Insulated ladders are used in the installation and electrical testing of related equipment in substation projects. The use of large-scale mechanical (aerial vehicles, cranes) auxiliary equipment is restricted by the site and is expensive. The use of insulating ladders only requires 2-3 staff members, is not restricted by the site, greatly reduces production costs, and is convenient and flexible. However, most of the existing insulating ladders have a single function and cannot meet a variety of usage needs. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a multifunctional insulating ladder that can meet multiple use requirements.

[0004] The multifunctional insulating ladder according to the embodiment of the utility model comprises:

[0005] A fixed ladder comprising two first longitudinal beams and a plurality of first transverse beams fixed between the two first longitudinal beams;

[0006] A revolving ladder, the top end of which is rotatably connected to the fixed ladder, and the rotation axis is parallel to the first crossbeam, the revolving ladder has at least a first state parallel to the fixed ladder and a second state at a set angle to the fixed ladder during rotation, the revolving ladder comprises two second longitudinal beams and a plurality of second crossbeams fixed between the two second longitudinal beams;

[0007] A telescopic ladder is connected to the fixed ladder and arranged parallel thereto. The telescopic ladder can adjust its position along the length direction of the fixed ladder and can extend from the top of the fixed ladder during the adjustment process. The telescopic ladder includes two third longitudinal beams and a plurality of third transverse beams fixed between the two third longitudinal beams.

[0008] The multifunctional insulating ladder according to the embodiment of the utility model has at least the following beneficial effects:

[0009] By providing a revolving ladder that can rotate relative to the fixed ladder, the revolving ladder can be rotated to a first state to be used as a single ladder, and can also be rotated to a second state so that the revolving ladder is unfolded at a certain angle relative to the fixed ladder to be used as a herringbone ladder. By providing a telescopic ladder that can be adjusted along the length direction of the fixed ladder, the telescopic ladder can be adjusted to adjust the length of the multifunctional insulating ladder, thereby realizing the adjustment of the climbing height of the multifunctional insulating ladder. The above-mentioned settings can realize multiple functions and meet multiple usage requirements.

[0010] According to some embodiments of the present invention, the telescopic ladder is slidably arranged on the fixed ladder along the length direction of the fixed ladder, and a locking member is provided between the telescopic ladder and the fixed ladder, and the locking member can lock the telescopic ladder when the telescopic ladder slides to multiple positions relative to the fixed ladder.

[0011] According to some embodiments of the utility model, the top end of the locking member is rotatably provided on the telescopic ladder and the rotation axis is parallel to the first crossbeam, and the bottom end of the locking member is provided with an embedding groove. When the locking member moves with the telescopic ladder to the upper side of any first crossbeam, the locking member can be rotated to align the embedding groove with the first crossbeam for the first crossbeam to be embedded.

[0012] According to some embodiments of the present utility model, two locking members are provided, which are respectively arranged on the two third longitudinal beams.

[0013] According to some embodiments of the present invention, a driving assembly is provided between the telescopic ladder and the fixed ladder, and the driving assembly is configured to be able to receive external force to drive the telescopic ladder to slide upward relative to the fixed ladder.

[0014] According to some embodiments of the utility model, the driving assembly includes a first pulley provided on the telescopic ladder and a second pulley provided on the fixed ladder, a rope is wound around the first pulley and the second pulley, and the telescopic ladder can be driven to slide upward relative to the fixed ladder by pulling down the rope.

[0015] According to some embodiments of the present invention, the fixed ladder further includes a first supporting cross arm connected between the bottom ends of the two first longitudinal beams, and the rotating ladder further includes a second supporting cross arm connected between the bottom ends of the two second longitudinal beams.

[0016] According to some embodiments of the present utility model, a first supporting diagonal beam is provided between the first supporting cross arm and the two first longitudinal beams, and a second supporting diagonal beam is provided between the second supporting cross arm and the two second longitudinal beams.

[0017] According to some embodiments of the utility model, the fixed ladder is provided with a plurality of groups of guide members at intervals along its length direction, and a group of the guide members includes two guide members located on opposite sides of the width direction of the fixed ladder, and the two guide members in the same group are respectively provided with guide grooves distributed along the length direction of the fixed ladder on opposite sides so as to respectively slideably cooperate with the two third longitudinal beams.

[0018] According to some embodiments of the present utility model, a hook is provided at the top end of the third longitudinal beam.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 It is a structural schematic diagram of a multifunctional insulating ladder of an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a locking member in an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a hook in an embodiment of the utility model.

[0024] Figure Number:

[0025] Fixed ladder 100, first longitudinal beam 110, first cross beam 120, second pulley 130, first supporting cross arm 140, first supporting diagonal beam 150, guide member 160;

[0026] The rotating ladder 200, the second longitudinal beam 210, the second transverse beam 220, the second supporting cross arm 230, and the second supporting diagonal beam 240;

[0027] Telescopic ladder 300, third longitudinal beam 310, hook 311, third cross beam 320, first pulley 330;

[0028] Locking member 400, embedding groove 401, fixing frame 410;

[0029] Rope 500. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Insulated ladders are used in the installation and electrical testing of related equipment in power transformation projects. The use of large-scale mechanical (aerial vehicles, cranes) auxiliary equipment is restricted by the site and has high costs. The use of insulating ladders only requires 2-3 workers, is not restricted by the site, greatly reduces production costs, and is convenient and flexible. However, most existing insulating ladders have a single function and cannot meet a variety of usage requirements.

[0035] Therefore, the utility model proposes a multifunctional insulating ladder, which can effectively improve the above problems.

[0036] Reference below Figures 1 to 3 A multifunctional insulating ladder according to an embodiment of the utility model is described.

[0037] A multifunctional insulating ladder according to an embodiment of the utility model includes: a fixed ladder 100, a rotating ladder 200, and a telescopic ladder 300.

[0038] The fixed ladder 100 includes two first longitudinal beams 110 and a plurality of first transverse beams 120 fixed between the two first longitudinal beams 110 ; obviously, the first transverse beams 120 are distributed horizontally.

[0039] The top of the revolving ladder 200 is rotatably connected to the fixed ladder 100, and the rotation axis of the revolving ladder 200 is parallel to the first crossbeam 120, that is, the rotation axis of the revolving ladder 200 is horizontally distributed. The revolving ladder 200 has at least a first state and a second state during its rotation. In the first state, the revolving ladder 200 is parallel to the fixed ladder 100, and the revolving ladder 200 is stored in the fixed ladder 100. In the second state, the revolving ladder 200 is at a set angle to the fixed ladder 100, that is, the revolving ladder 200 is unfolded at a set angle relative to the fixed ladder 100, and at this time, the revolving ladder 200 and the fixed ladder 100 are distributed in a herringbone structure. Specifically, the revolving ladder 200 includes two second longitudinal beams 210 and a plurality of second crossbeams 220 fixed between the two second longitudinal beams 210. Obviously, the second crossbeams 220 are also horizontally distributed and parallel to the first crossbeams 120. It should be noted that, in the second state, the revolving ladder 200 forms a set angle with the fixed ladder 100. In this embodiment, the set angle is the maximum angle at which the revolving ladder 200 can rotate relative to the fixed ladder 100. The set angle can be set according to actual application requirements. It is conceivable that, in order to limit the maximum angle between the revolving ladder 200 and the fixed ladder 100, a limiting device can be set between the revolving ladder 200 and the fixed ladder 100, for example, a limiting rope is set between the second crossbeam 220 of the revolving ladder 200 and the first crossbeam 120 of the fixed ladder 100, or a limiting device of other structural forms is used. This is a common structure in the limiting technology and will not be described in detail here.

[0040] The telescopic ladder 300 is connected to the fixed ladder 100 and is arranged parallel thereto. The position of the telescopic ladder 300 can be adjusted along the length direction of the fixed ladder 100, and the telescopic ladder 300 can be extended from the top of the fixed ladder 100 during the adjustment process, that is, by adjusting the telescopic ladder 300, the length of the overall structure of the telescopic ladder 300 and the fixed ladder 100 can be adjusted, thereby adjusting the climbable height; specifically, the telescopic ladder 300 includes two third longitudinal beams 310 and a plurality of third cross beams 320 fixed between the two third longitudinal beams 310. Obviously, the third cross beams 320 are also distributed horizontally.

[0041] The multifunctional insulating ladder of the embodiment of the utility model is provided with a revolving ladder 200 that can rotate relative to the fixed ladder 100, so that the revolving ladder 200 can be rotated to a first state to be used as a single ladder, and the revolving ladder 200 can be rotated to a second state so that the revolving ladder 200 is unfolded at a certain angle relative to the fixed ladder 100, so that it can be used as a herringbone ladder. Furthermore, a telescopic ladder 300 that can be adjusted along the length direction of the fixed ladder 100 is provided, so that the length of the multifunctional insulating ladder can be adjusted by telescoping the telescopic ladder 300, thereby realizing the adjustment of the climbing height of the multifunctional insulating ladder. Through the above-mentioned settings, multiple functions can be realized to meet multiple usage requirements.

[0042] Reference Figure 1 As shown, in some embodiments of the present invention, the telescopic ladder 300 is slidably arranged on the fixed ladder 100 along the length direction of the fixed ladder 100, and a locking member 400 is provided between the telescopic ladder 300 and the fixed ladder 100. The locking member 400 can lock the telescopic ladder 300 when the telescopic ladder 300 slides to multiple positions relative to the fixed ladder 100. When the position of the telescopic ladder 300 needs to be adjusted relative to the fixed ladder 100, the locking member 400 is firstly unlocked by the telescopic ladder 300, and then the telescopic ladder 300 is slid to the corresponding position, and then the locking member 400 is re-locked.

[0043] Reference Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the top end of the locking member 400 is rotatably arranged on the telescopic ladder 300 and the rotation axis is parallel to the first beam 120, that is, the rotation axis of the locking member 400 is horizontally distributed, and the bottom end of the locking member 400 is provided with an embedding groove 401. When the locking member 400 moves with the telescopic ladder 300 to the upper side of any first beam 120, the locking member 400 can be rotated to align the embedding groove 401 with the first beam 120 so that the first beam 120 can be embedded, thereby supporting the telescopic ladder 300 through the cooperation of the locking member 400 and the first beam 120 to prevent the telescopic ladder 300 from sliding down. , and the telescopic ladder 300 relies on its own gravity to limit its upward sliding relative to the fixed ladder 100, so that the telescopic ladder 300 is locked relative to the fixed ladder 100, and the structure is simple and practical; when the telescopic ladder 300 needs to be adjusted up or down, the telescopic ladder 300 is first slid upward to make the first crossbeam 120 disengage from the embedded groove 401, and then the locking member 400 is rotated to a position avoiding the sliding path of the telescopic ladder 300, and then the telescopic ladder 300 is slid to the corresponding position, and the locking member 400 is rotated to make the locking member 400 cooperate with the first crossbeam 120 at the corresponding position, and the telescopic ladder 300 is re-locked. Specifically, the locking member 400 is rotatably connected to the fixing frame 410, and the fixing frame 410 is fixed to the telescopic ladder 300, so that the locking member 400 is fixed to the telescopic ladder 300. Further, for easy disassembly and assembly, the fixing frame 410 is fixed to the telescopic ladder 300 by a fastener, and the fastener can be a bolt.

[0044] Reference Figure 1 As shown, in some embodiments of the present invention, two locking members 400 are provided, which are respectively arranged on two third longitudinal beams 310. In this way, the stability of the overall structure can be improved when the locking member 400 locks the telescopic ladder 300, avoiding uneven force and causing damage to the locking member 400.

[0045] Reference Figure 1As shown, in some embodiments of the utility model, a driving assembly is provided between the telescopic ladder 300 and the fixed ladder 100, and the driving assembly is configured to be able to receive external force to drive the telescopic ladder 300 to slide upward relative to the fixed ladder 100. By setting the driving assembly to drive the telescopic ladder 300 to slide upward relative to the fixed ladder 100, it is convenient for the operator to adjust the position of the telescopic ladder 300, simplify the operation, and improve work efficiency.

[0046] Reference Figure 1 As shown, in a specific embodiment of the utility model, the driving assembly includes a first pulley 330 provided on the telescopic ladder 300 and a second pulley 130 provided on the fixed ladder 100, a rope 500 is wound between the first pulley 330 and the second pulley 130, and the telescopic ladder 300 can be driven to slide upward relative to the fixed ladder 100 by pulling down the rope 500, and the operation is very convenient. Specifically, the telescopic ladder 300 is provided with two first pulleys 330 of the same height and spaced along the length direction of the third crossbeam 320, and the top of the fixed ladder 100 is provided with two second pulleys 130 of the same height and spaced along the length direction of the first crossbeam 120, the first pulley 330 is located at the lower side of the second pulley 130, the rope 500 bypasses from the lower side of the two first pulleys 330, and the two ends of the rope 500 bypass and hang down from the upper side of the two first pulleys 330, and the two ends of the rope 500 are pulled down to pull the telescopic ladder 300 relative to the fixed ladder 100.

[0047] Reference Figure 1 As shown, in some embodiments of the utility model, the fixed ladder 100 also includes a first supporting cross arm 140 connected between the bottom ends of the two first longitudinal beams 110, and the revolving ladder 200 also includes a second supporting cross arm 230 connected between the bottom ends of the two second longitudinal beams 210. By setting the first supporting cross arm 140 and the second supporting cross arm 230, the original single-leg landing support method is changed, the possibility of swaying left and right is reduced, and the stability during use is improved.

[0048] Reference Figure 1 As shown, in some embodiments of the utility model, a first supporting oblique beam 150 is provided between the first supporting crossarm 140 and the two first longitudinal beams 110, and a second supporting oblique beam 240 is provided between the second supporting crossarm 230 and the two second longitudinal beams 210. The first supporting oblique beam 150 is provided to improve the structural strength of the fixed ladder 100, and the second supporting oblique beam 240 is provided to improve the structural strength of the rotating ladder 200, thereby improving the structural stability of the multifunctional insulating ladder when used as a herringbone ladder.

[0049] Reference Figure 1As shown, in some embodiments of the utility model, the fixed ladder 100 is provided with multiple groups of guide members 160 at intervals along its length direction, and one group of guide members 160 includes two guide members 160 located on opposite sides of the width direction of the fixed ladder 100, and the two guide members 160 in the same group are respectively provided with guide grooves distributed along the length direction of the fixed ladder 100 on the opposite sides to slide with the two third longitudinal beams 310 respectively. By providing the guide members 160 with guide grooves to cooperate with the third longitudinal beams 310 of the telescopic ladder 300, the sliding installation of the telescopic ladder 300 relative to the fixed ladder 100 is realized, and the structure is simple and practical; by providing multiple groups of guide members 160 along the length direction of the fixed ladder 100, the stability of the telescopic ladder 300 when sliding relative to the fixed ladder 100 is ensured.

[0050] Reference Figure 1 and Figure 3 As shown, in some embodiments of the utility model, a hook 311 is provided at the top of the third longitudinal beam 310. Thus, when climbing with the multifunctional insulating ladder, the hook 311 at the top of the third longitudinal beam 310 can be hung on a structural support to improve structural stability and make it more convenient to use.

[0051] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A multifunctional insulating ladder, characterized in that: include: A fixed ladder (100) comprising two first longitudinal beams (110) and a plurality of first transverse beams (120) fixed between the two first longitudinal beams (110); A revolving ladder (200), the top end of which is rotatably connected to the fixed ladder (100), and the rotation axis is parallel to the first crossbeam (120); during the rotation process, the revolving ladder (200) has at least a first state parallel to the fixed ladder (100) and a second state at a set angle to the fixed ladder (100); the revolving ladder (200) comprises two second longitudinal beams (210) and a plurality of second crossbeams (220) fixed between the two second longitudinal beams (210); A telescopic ladder (300) is connected to the fixed ladder (100) and arranged parallel thereto; the telescopic ladder (300) can adjust its position along the length direction of the fixed ladder (100) and can extend from the top of the fixed ladder (100) during the adjustment process; the telescopic ladder (300) comprises two third longitudinal beams (310) and a plurality of third transverse beams (320) fixed between the two third longitudinal beams (310).

2. The multifunctional insulating ladder according to claim 1, characterized in that: The telescopic ladder (300) is slidably arranged on the fixed ladder (100) along the length direction of the fixed ladder (100), and a locking member (400) is provided between the telescopic ladder (300) and the fixed ladder (100). The locking member (400) can lock the telescopic ladder (300) when the telescopic ladder (300) slides to a plurality of positions relative to the fixed ladder (100).

3. The multifunctional insulating ladder according to claim 2, characterized in that: The top end of the locking member (400) is rotatably arranged on the telescopic ladder (300) and the rotation axis is parallel to the first beam (120). The bottom end of the locking member (400) is provided with an embedding groove (401). When the locking member (400) moves with the telescopic ladder (300) to the upper side of any first beam (120), the locking member (400) can be rotated to align the embedding groove (401) with the first beam (120) so that the first beam (120) can be embedded.

4. The multifunctional insulating ladder according to claim 2, characterized in that: Two locking members (400) are provided, and are respectively arranged on the two third longitudinal beams (310).

5. The multifunctional insulating ladder according to claim 2, characterized in that: A driving assembly is provided between the telescopic ladder (300) and the fixed ladder (100), and the driving assembly is configured to be able to receive external force to drive the telescopic ladder (300) to slide upward relative to the fixed ladder (100).

6. The multifunctional insulating ladder according to claim 5, characterized in that: The driving assembly comprises a first pulley (330) provided on the telescopic ladder (300) and a second pulley (130) provided on the fixed ladder (100); a rope (500) is wound between the first pulley (330) and the second pulley (130); and the telescopic ladder (300) can be driven to slide upward relative to the fixed ladder (100) by pulling down the rope (500).

7. The multifunctional insulating ladder according to claim 1, characterized in that: The fixed ladder (100) further comprises a first supporting cross arm (140) connected between the bottom ends of the two first longitudinal beams (110), and the rotating ladder (200) further comprises a second supporting cross arm (230) connected between the bottom ends of the two second longitudinal beams (210).

8. The multifunctional insulating ladder according to claim 7, characterized in that: A first supporting diagonal beam (150) is provided between the first supporting cross arm (140) and the two first longitudinal beams (110), and a second supporting diagonal beam (240) is provided between the second supporting cross arm (230) and the two second longitudinal beams (210).

9. The multifunctional insulating ladder according to claim 1, characterized in that: The fixed ladder (100) is provided with a plurality of groups of guide members (160) at intervals along its length direction, and one group of guide members (160) includes two guide members (160) located on opposite sides of the fixed ladder (100) in the width direction, and the two guide members (160) in the same group are provided with guide grooves distributed along the length direction of the fixed ladder (100) on opposite sides, respectively, so as to slideably cooperate with the two third longitudinal beams (310) respectively.

10. The multifunctional insulating ladder according to claim 1, characterized in that: A hook (311) is provided at the top end of the third longitudinal beam (310).

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