Electric power overhaul ladder

Abstract

The utility model belongs to the technical field of electric power overhaul, and particularly relates to an electric power overhaul ladder which comprises a lower ladder and an upper ladder, a guide groove is formed in the lower ladder, a guide rail is arranged on the upper ladder, the upper ladder is clamped in the guide groove of the lower ladder through the guide rail, a telescopic pushing assembly is arranged between the lower ladder and the upper ladder, and the telescopic pushing assembly is connected with the lower ladder. A limiting hook is movably arranged on the upper step ladder, the limiting seat is driven by the telescopic pushing assembly to move up and down, and due to the fact that the limiting seat is fixedly connected with the upper step ladder, the upper step ladder is driven to slide up and down in a guide groove of the lower step ladder through a guide rail at the moment, and then stretching between the lower step ladder and the upper step ladder is completed, and height adjustment is facilitated. The problem that an existing power maintenance ladder lacks a height adjusting function is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power maintenance, and in particular relates to an electric power maintenance ladder. Background Art

[0002] During power construction, ladders are often used to inspect and maintain power equipment. The ladders used in existing power construction tools only provide a simple climbing function. The power maintenance ladder lacks a height adjustment function, which makes it impossible for the repairer to adjust the height when standing on the ladder, affecting the convenience of inspection. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the utility model provides an electric maintenance ladder, comprising a lower step ladder and an upper step ladder, wherein the lower step ladder is provided with a guide groove, the upper step ladder is provided with a guide rail, the upper step ladder is connected to the inner part of the guide groove of the lower step ladder through the guide rail, a telescopic pushing assembly is provided between the lower step ladder and the upper step ladder, and a limit hook is movably provided on the upper step ladder.

[0004] As an electric maintenance ladder of the present invention, preferably, the upper step ladder is clamped in the guide groove of the lower step ladder through the guide rail, and the upper step ladder slides up and down in the guide groove of the lower step ladder through the guide rail.

[0005] As an electric maintenance ladder of the utility model, preferably, the telescopic pushing assembly includes a U-shaped support fixed on the lower step ladder, and a reciprocating screw rod and a pair of sliding rods for guidance are movably provided between the upper and lower ends of the U-shaped support through bearings.

[0006] As an electric maintenance ladder of the utility model, preferably, a threaded sleeve is screwed into the external thread of the reciprocating screw rod, and a sliding cylinder that slides up and down is sleeved on the sliding rod.

[0007] As an electric maintenance ladder of the utility model, preferably, a limiting seat is fixedly provided between the two sliding cylinders and the threaded sleeve.

[0008] As an electric maintenance ladder of the present invention, preferably, a reduction motor is installed at the right end of the U-shaped support, and the output end of the reduction motor is fixedly connected to the reciprocating screw rod.

[0009] As an electric maintenance ladder of the utility model, preferably, the limit seat is fixedly connected to the upper step ladder.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The telescopic pushing assembly drives the limit seat to move up and down. Since the limit seat is fixedly connected to the upper step ladder, the upper step ladder is driven to slide up and down inside the guide groove of the lower step ladder through the guide rail, thereby completing the telescopic connection between the lower step ladder and the upper step ladder, making it easy to adjust the height and solving the problem that the existing power maintenance ladder lacks height adjustment function. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the telescopic structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the lower step ladder of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the step ladder of the present utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the utility model from above;

[0018] Figure 6 This is a schematic diagram of the telescopic push assembly structure of the utility model;

[0019] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at point A;

[0020] In the picture:

[0021] 1. Step down ladder; 11. Guide groove;

[0022] 2. Step ladder; 21. Guide rail; 22. Limit hook;

[0023] 3. Telescopic push assembly; 31. U-shaped support; 32. Reciprocating screw; 33. Sliding rod; 34. Threaded sleeve; 35. Sliding cylinder; 36. Limit seat; 37. Reducer motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1 As shown;

[0027] An electric power maintenance ladder comprises a lower step ladder 1 and an upper step ladder 2.

[0028] In this embodiment: In order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "the ladders used in existing power construction tools only provide a simple climbing function, and the power maintenance ladders lack the function of height adjustment, which makes it impossible for the maintainer to adjust to a certain height when standing on the ladder, affecting the convenience of maintenance." In combination with actual use, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve this technical problem, an electric maintenance ladder is provided on this basis.

[0029] like Figure 1-7 As shown in the figure;

[0030] In combination with the above content, a guide groove 11 is provided on the lower step ladder 1, and a guide rail 21 is provided on the upper step ladder 2. The upper step ladder 2 is clamped in the guide groove 11 of the lower step ladder 1 through the guide rail 21. A telescopic pushing assembly 3 is provided between the lower step ladder 1 and the upper step ladder 2, and a limit hook 22 is movably provided on the upper step ladder 2.

[0031] In an optional embodiment, the upper step ladder 2 is clamped in the guide groove 11 of the lower step ladder 1 through the guide rail 21, and the upper step ladder 2 slides up and down in the guide groove 11 of the lower step ladder 1 through the guide rail 21.

[0032] In an optional embodiment, the telescopic pushing assembly 3 includes a U-shaped support 31 fixed on the lower step ladder 1, and a reciprocating screw 32 and a pair of sliding rods 33 for guiding are movably arranged between the upper and lower ends of the U-shaped support 31 through bearings. A threaded sleeve 34 is screwed into the external thread of the reciprocating screw 32, and a slide 35 that slides up and down is sleeved on the slide rod 33. A limiting seat 36 is fixedly arranged between the two slides 35 and the threaded sleeve 34. A reduction motor 37 is installed at the right end of the U-shaped support 31, and the output end of the reduction motor 37 is fixedly connected to the reciprocating screw 32.

[0033] In this embodiment: the reduction motor 37 is driven to drive the reciprocating screw 32 to rotate. Since the threaded sleeve 34 is screwed onto the reciprocating screw 32, the slide 35 is sleeved on the slide 33, and the two slides 35 and the threaded sleeve 34 are fixed on the limit seat 33, the limit seat 33 limits the threaded sleeve 34 and the slide 35. At this time, the rotation of the reciprocating screw 32 drives the threaded sleeve 34 and the slide 35 to perform axial movement in the up and down directions, and then drives the limit seat 33 to move in the up and down directions.

[0034] In an optional embodiment, the limiting seat 36 is fixedly connected to the upper step ladder 2 .

[0035] Working principle of this utility model:

[0036] The driving reduction motor 37 drives the reciprocating screw rod 32 to rotate. Since the threaded sleeve 34 is screwed onto the reciprocating screw rod 32, the slide cylinder 35 is sleeved on the slide rod 33, and the two slide cylinders 35 and the threaded sleeve 34 are fixed on the limit seat 36. The limit seat 36 limits the threaded sleeve 34 and the slide cylinder 35. At this time, the rotation of the reciprocating screw rod 32 drives the threaded sleeve 34 and the slide cylinder 35 to perform axial movement in the up and down directions, thereby driving the limit seat 36 to move in the up and down directions. Since the limit seat 36 is fixedly connected to the upper step ladder 2, the upper step ladder 2 is driven to slide up and down inside the guide groove 11 of the lower step ladder 1 through the guide rail 21, thereby completing the telescopic connection between the lower step ladder 1 and the upper step ladder 2, which is convenient for height adjustment and solves the problem that the existing power maintenance ladder lacks height adjustment function.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electric maintenance ladder, comprising a lower step ladder (1) and an upper step ladder (2), characterized in that: The lower step ladder (1) is provided with a guide groove (11), the upper step ladder (2) is provided with a guide rail (21), the upper step ladder (2) is clamped in the guide groove (11) of the lower step ladder (1) through the guide rail (21), a telescopic pushing component (3) is provided between the lower step ladder (1) and the upper step ladder (2), and a limit hook (22) is movably provided on the upper step ladder (2).

2. The electric maintenance ladder according to claim 1, characterized in that: The upper step ladder (2) slides up and down inside the guide groove (11) of the lower step ladder (1) through the guide rail (21).

3. The electric maintenance ladder according to claim 1, characterized in that: The telescopic pushing assembly (3) comprises a U-shaped support (31) fixed on the lower step ladder (1), a reciprocating screw (32) and a pair of guide slides (33) are movably provided between the upper and lower ends of the U-shaped support (31) via bearings.

4. The electric maintenance ladder according to claim 3, characterized in that: A threaded sleeve (34) is screwed into the external thread of the reciprocating screw rod (32), and a sliding cylinder (35) that slides up and down is sleeved on the sliding rod (33).

5. The electric maintenance ladder according to claim 4, characterized in that: A limiting seat (36) is fixedly provided between the two slide cylinders (35) and the threaded sleeve (34).

6. The electric maintenance ladder according to claim 3, characterized in that: A reduction motor (37) is installed at the right end of the U-shaped support (31), and the output end of the reduction motor (37) is fixedly connected to the reciprocating screw rod (32).

7. The electric maintenance ladder according to claim 5, characterized in that: The limiting seat (36) is fixedly connected to the upper step ladder (2).

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